Mathematics College

helpppppppppppp pleaseeeeeeee?

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Answer 1

What’s the question.??

Related Questions

In MATHEMATICS ...write the empirical formula.

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Answer:

3Median = Mode + 2Mean

Step-by-step explanation:

A pharmaceutical company is conducting a study on whether or not their new vaccine is effective in preventing chicken pox. The researchers rejected the null hypothesis and stated that the vaccine was effective. However, subsequent studies found out that the vaccine did not have any effect on combating chicken pox. What type of error did the researchers make

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Answer:

The answer is "Type 1 error".

Step-by-step explanation:

The error of type I, frequently known as a 'false positive': its error in judgment that perhaps a null hypothesis is simply rejected. This is the mistake of accepting a possible (actual interest hypothesis) hypothesis whenever the results could be attributed to chance since the researchers deny, if valid, the null hypothesis.

Can someone help for number 17 I’ll mark best answer!!!!!!!!!!!

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9514 1404 393

Answer:

a) radius: 6 (m); mass: 22 (kg)

b) volume: 19 (m³)

c) d ≈ 2.8×10^3 kg/m³

Step-by-step explanation:

The order of magnitude is the exponent of 10 when the number is written in scientific notation.

a) radius: 1.6×10^6 m, so the order of magnitude is 6 when the units are meters.

mass: 4.8×10^22 kg, so the order of magnitude is 22 when the units are kg.

b) The volume is ...

V = (4/3)πr^3 ≈ 1.716×10^19 m^3, so the order of magnitude of the volume is 19 when the units are m^3.

c) The ratio of mass to volume is ...

d = (4.8×10^22)/(1.716×10^19) ≈ 2.8×10^(22-19) = 2.8×10^3 kg/m^3, so the order of magnitude is 3 when the units are kg/m^3.

Please help me I am struggling

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Answer:

924

Step-by-step explanation:

i multiply 14 by 11 and then by 6

For the triangles above, what is the measure of

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Answer:

Step-by-step explanation

48 + k+l =180

48 +90+l =180

138 +l = 180

l=180 - 138

l = 42

now

l+m+n= 180

42 +m+66 =180

108+m= 180

m= 180 -108 m =72

Mark brainlest

How are theoretical probability and experimental probability related

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Answer:

Experimental probability is the result of an experiment. Theoretical probability is what is expected to happen. Three students tossed a coin 50 times individually.

Step-by-step explanation:

Experimental probability is found through experiments while theoretical probability are not.

What is Probability?

Probability is simply the possibility of getting an event. Or in other words, we are predicting the chance of getting an event.

Theoretical probability is the probability that we use normally which describes the percent or probability that an event is likely to happen. This is found using logic.

Experimental probability is the probability that we calculate through the actual experiments that describes the frequency of an event happening. This is found using experiments which are repeated.

They can be same, both of which describes the probability of happening an event.

Hence the experimental probability is found through experiments while theoretical probability are not.

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Branliest to correct answer explain how you solved it please

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Answer:

10.4

Step-by-step explanation:

look at the picture for steps

im almost done with this hw. plz help!!! give explanation if you actually know the answer so ik u dont just want points

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Answer:

Step-by-step explanation:

Need help with finding the mean (MATH 7th GRADE)

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Answer:

mean = 49.25

Step-by-step explanation:

mean = sum of all the number ÷ amount of number

mean = 56 + 21 +55 + 30 + 34+ 76 + 40 + 82 = 394 ÷ 8

mean = 49.25

mean absolute deviation = (56- 49.25) + (21 - 49.25) + (55 -49.25) + (30 - 49.25) + (34 -49.25) + (76 -49.25) + (40 - 49.25) + (82- 49.25) / 8

mad= 6.75 + -28.25 + 5.75 + -19.25 + -15.25 + 26.75 + -9.25 + 32.75 / 8

mad = 0/8

mad= 0

brainliest is appreciated

Write the following ratio as a fraction in lowest terms:
4.4 g to 1.2 pounds

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Answer:

3 2/3

Step-by-step explanation:

Hope this is right

Answer: 3 2/3

Step-by-step explanation:

A consulting firm claimed that 65% of all e-commerce shoppers fail in their attempts to purchase merchandise on-line because Web sites are too complex. The claim was tested by taking a random sample of 60 online shoppers and assigning them each a different randomly selected e-commerce Web site to test. 45 reported sufficient frustration with their sites to deter making a purchase. The data was entered into STATISTIX and the following output was generated:

Hypothesis Test - One Proportion

Sample Size 60
Successes 45
Proportion 0.75000

Null Hypothesis: P = 0.65
Alternative Hyp: P > 0.65

Difference 0.10000
Standard Error 0.05590
Z (uncorrected) 1.62 P 0.0522

Method 95% Confidence Interval
Simple Asymptotic (0.64043, 0.85957)

Which of the following statements is correct if we are testing at Î± = 0.05?

a. There is sufficient evidence to indicate that more than 65% of all e-commerce shoppers fail in their attempts to purchase merchandise on-line because Web sites are too complex.
b. There is sufficient evidence to indicate that exactly 65% of all e-commerce shoppers fail in their attempts to purchase merchandise on-line because Web sites are too complex.
c. There is insufficient evidence to indicate that exactly 65% of all e-commerce shoppers fail in their attempts to purchase merchandise on-line because Web sites are too complex.
d. There is insufficient evidence to indicate that more than 65% of all e-commerce shoppers fail in their attempts to purchase merchandise on-line because Web sites are too complex.

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Answer:

b. There is sufficient evidence to indicate that exactly 65% of all e-commerce shoppers fail in their attempts to purchase merchandise on-line because Web sites are too complex.

Step-by-step explanation:

Not significant,accept null hypothesis that population proportion = 0.65

When we accept the null hypothesis that P= 0.65

Then only option b is correct which states that there is sufficient evidence to support that population proportion is exactly 0.65 .

1) We obtain a P - value of 0.0522 which is greater than 0.5 indicating that the null hypothesis is not rejected.

The rejection region for this right-tailed test is z > 1.64

2) Test Statistics

z= p`-p0/ sqrt(p0(1-p0)/n)

The z-statistic is computed as follows:

z= 0.75-0.65/ √(0.65*0.35)60

z= 1.624

3) Decision about the null hypothesis

Since it is observed that z = 1.624 is less than z ∝=1.64, it is then the null hypothesis is not rejected.

The Wells family uses up a
1
2
-gallon jug of milk every 3 days. At what rate do they drink milk?
Simplify your answer and write it as a proper fraction, mixed number, or whole number

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Answer:

4 gallons/1 day

Step-by-step explanation:

What is a rate? A rate is writing a ratio in fraction form. A ratio is the proportion of two things. (ex: for every 1 dog, there are two cats.)

Creating the ratio: For the ratio, there is no given amount of which one needs to come first, but because it is about the milk, I put that first. In the problem it says 12 gallons for 3 days so: 12/3

Simplifying: To simplify, think of the largest factor between the two numbers. If you can't immediately, think of one factor in common and keep simplifying. In this case, 4 is the greatest common factor between these. To simplify, divide both sides by four, and that is your answer: 4: 1

Nicholas is currently in eighth grade and intends to attend a state college when he finishes high school. Nicholas’s parents currently have some money invested in mutual funds, but would like to invest this money in a more secure investment now to pay for college in 4 years. If they will need $25,000, how much do Nicholas’s parents have to invest now in a 48month CD that has a rate of 4.59% compounded monthly?

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Answer:

30027.86

Step-by-step explanation:

pls answer this question about math

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Answer:

AB, AC, AD, BC, BD, CD

Hope this helps :)

Answer:

five line segment =AB,AC,AD,BC,BD,CD

Please help I will give points

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It’s the last one 40 :):)

Answer is 40! Hope this helps

stimulus check summary please help me please

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Answer: I think it’s great but you should make a stronger opinion and always have back up evidence

Step-by-step explanation:

Stimulus checks are checks sent by the U.S. government to taxpayers to boost their spending power and spur economic activity. Stimulus checks are either mailed to taxpayers or an equivalent tax credit is applied to their tax filing.

Mike wants to find the confidence interval for a set of data. He knows the sample size and the sample proportion. Which other piece of information does he need to determine the confidence interval?

A.
the critical value
B.
the number of favorable responses
C.
the standard error of the mean
D.
the standard deviation

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Answer:

C. the standard error of the mean

Step-by-step explanation:

You need the sample mean, sample proportion , and the standard error which depend on z or t, sigma or s, and n

How many solutions does this system of equations have?

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Answer:

this equation will have 2 solutions

It will be 2 solutions

helpppppppppppppppppppppppppppp

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It is 75.36 because the total volume is 301.59 and 25% of the cone remains so 25% of 301.59 is 75.36

i need help! please and thank you

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Answer:

[tex]20\pi[/tex] m

62.8318531 m

Step-by-step explanation:

This is actually pretty simple

The distance the tip travels is the arc length and the length of the pendulum is the radius of a circle

The formula for arc length is Angle in Radians x Radius

So pi/12 * 4 = pi/3 m

We know this is how much it travels every second so it is going at pi/3 m/s

One minute is 60 seconds

pi/3 * 60 = 20pi m

Please help me this is due in 20 minutes!!!!!!!

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Answer:

The two triangles are very similar by them both having the same kind of angles even though they are different in size, like, an acute angle.

I'm not sure if this helped or not hopefully it did good luck.

Use the multiplication principle to solve the problem.
A biologist is attempting to classify plant species by assigning 5 initials to each species. How many
classifications are possible using this method?

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yes 100% accurate. I agree

Find the area of the shape below

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Answer:

2112

Step-by-step explanation:

100% sure

A baseball is thrown in the air from center field to home plate. The path of the baseball is represented by the equation p(x)=−7x2+52x+99. How long will it take for the ball to get to home plate?

Tell me what steps went wrong as I solved this problem. Explain how to fix it.

Problem:

P(x) = -7x2 +52x+99

Step 1: -7x2 +52x+99 = 0

Step 2: a = -7 b = 52 c = 99

Step 3: −52±(52)2−4(−7)(99)√2(−7)

Step 4: −52±5476√14

Step 5:−52±7414

Step 6: x = 117 x = - 9

Answer: 117 seconds

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Answer:

steps 3 went wrong

Step-by-step explanation:

the quadratic is

(-b +/- √ ( b^2 - 4ac) )/2a

-52 + √( 2704 +2772) /-14

-52 +74) / -14 = -22/14 = -11/7

-52 -74 / -14 = -126/-14 = 9

HELP PLEASE QUICK!!!!!

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Answer:in what can I help

Step-by-step explanation:

There are only seven days left until we launch of our new product and we only have $668 left in our promotion budget we need to spend $85 on the last day can you please calculate how many dollars a day we can spin on the remaining days

Answers

Answer:

$97.17

Step-by-step explanation:

First, subtract 85 from 668:

668 - 85

= 583

This means that our budget for all of the days excluding the last day is $583

To find how much can be spent on the remaining days, divide 583 by 6:

583/6

= 97.17

So, approximately $97.17 can be spent on the remaining days

Answers

Answer:

Step-by-step explanation:

The other piece of information Mike needs to determine the confidence interval is the critical value.

What is a confidence interval?

A confidence interval is a range of estimates for a variable that is uncertain. A confidence interval is calculated at a specified confidence level; the 95% confidence level is the most frequent, although other values, such as 90%or 99%, are also used.

To determine the confidence interval for a set of data sample size, the sample proportion, and the critical value are needed to be known.

Hence, the other piece of information Mike needs to determine the confidence interval is the critical value.

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Jason is laying out a square garden on his property. The space measures 46 feet diagonally. How long is each side of the garden?

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46 ft all around the square

12 less than a number is 39 find the number round your answer to the nearest integer if necessary

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Answer:

number = n

n = 51

Equation:

n - 12 = 39

39 + 12 = 51

Mr. Farris drives 7 1/2 miles directly west of his home to a restaunt.he then drives 8 2/3 miles directly east of the restauant to his office. how far , and in what direction is his office from his home ?

Answers

Answer:

2 1/6

Step-by-step explanation:

8 2/3 - 7 1/2 = 2 1/6

9514 1404 393

Answer:

1 1/6 miles east of home

Step-by-step explanation:

If we consider east to be positive, then the distance from home to office is ...

(-7 1/2) +(+8 2/3) = -7 3/6 +8 4/6 = (8 -7) +(4/6 -3/6) = +1 1/6

Farris's office is 1 1/6 miles east of his home.

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320de le i si cati bani two different kinds of organism are as closely relates as possible. which statement is most likely true about the organism?they are in the same genus.they are in the same species.they share the same DNA.they share no common ancestors. Find the circumference of the circle. Use 3.14 for pi round the nearest hundredth rig necessary. 30 in the circumference of the circle is abt something in Find the domain and the range of the relation shown in the given graph. Also, determine whether the relation is a function. The results of an independent-samples t test were t(19) = 4.02, p < 0.05. In this example,the sample size is: What is the volume of this rectangular prism?3/5cm 4/3cm 3cm a truck sits on the platform of a vehicle lift. Two moving arms raise the platform until a mechanic can fit underneath. Why will the truck always be parallel to the ground as it is lifted? Kenji lives in Detroit and runs a business that sells boats. In an average year, he receives $793,000 from selling boats. Of this sales revenue, he must pay the manufacturer a wholesale cost of $430,000; he also pays wages and utility bills totaling $301,000. He owns his showroom; if he chooses to rent it out, he will receive $15,000 in rent per year. Assume that the value of this showroom does not depreciate over the year. Also, if Kenji does not operate this boat business, he can work as a financial advisor, receive an annual salary of $50,000 with no additional monetary costs, and rent out his showroom at the $15,000 per year rate. No other costs are incurred in running this boat business.Identify each of Charles's costs in the following table as either an implicit cost or an explicit cost of selling guitars. a. The wages and utility bills that Charles pays b. The wholesale cost for the guitars that Charles pays the manufacturer c. The rental income Charles could receive if he chose to rent out his showroom d. The salary Charles could earn if he worked as a financial advisor The question on the top is A student spins The spinner once and rolls the 1-6 number cube once. The second question isWhat is the probability a student spends an even number and rolls an odd number, written as a percentage? 10 points this is due tomorrow. In PQR the measure of R=90 the measure of P=62 and RP=8.6 find the length of QR to the nearest tenth of a foot. Why was trade with Asia so important to European nations? i didnt mean to pick that but can some one please give me the answer :( How did the Age of Exploration most affect indigenous populations in the Americas?The participation in global tradeThe participation in global tradeThe domestication of animalsThe domestication of animalsThe introduction of diseasesThe introduction of diseases ,The use of metal tools for farming A triangle has sides of length 2 cm and 12 cm. What can you say about the length of the third side? Gohan~Need constructive criticism to improve What is the radius of the unit circle? Calculate the [H3O+] of an aqueous solution that is 1.94 x 10-7 Min OH.Enter your answer in scientific notation. Be sure to answer all parts._x 10^_M What is a circuit breaker and how is it different from a fuse? Why do we need these two different devices? DO NOT PLAGARIZE! Make sentence from the prompts using the 2nd conditional 3 If Luis / have choice / he / go / to Disneyland. Why should Emily use a wire to connect point 2 to point 4? A) Metal wire is always expensive to work with. B) Metal is a good insulator of electricity. C) Metal wire is a good conductor of electricity. D) Metal is an inexpensive material to work with.