Mathematics College

what is the area of the triangle? 6 , 3

Answers

Answer 1

Answer:

Step-by-step explanation:

Answer 2

i think the area of the triangle is 9

Related Questions

12 4/9 +14 5/12=
What’s the answer

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Answer:

The answer would be 28 93/108 or 28 31/36

Step-by-step explanation:

choose yes or no to tell whether each of the following describes a convenience sampling method

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No, this is systematic sampling. Systematic sampling is where you use a specifically well defined rule to generate your sample. In this case, that rule is "pick every 4th customer". In other words, if the customer number is a multiple of 4, then they are selected.No, this is simple random sampling (SRS). Each school is assigned a number, and those numbers are fed into a computer to generate a list of schools to form the sample. A random number table can also be used. When comparing to systematic sampling, SRS in my opinion is the stronger sampling method in that we get a better representative sample. Consider a case where on some unlucky circumstance that every 4th customer happens to be male (refer to problem 1). That would mean males are over-represented while females are completely under-represented. This example, while a bit extreme, shows a flaw in systematic sampling. So in short, it's best to use SRS if you could only pick one. Yes, this is convenience sampling. As the name strongly implies, convenience sampling is the easiest or most convenient way to select a sample. Sheila simply looked to her left and right to get the sample points she needed. While it's tempting to use this method due to its ease, it's probably very clear that this method can be heavily biased. She should employ SRS to get a better representative sample.Yes, this is convenience sampling. For the quality control manager, the easiest most convenient ladders he found were the first five closest to him. Those five ladders may or may not be representative of the population. The population being the set of all ladders in the shop. If those ladders don't break, then the manager may get the wrong conclusion that all if not most of the ladders won't break. However, his sample is not representative and there may be bad faulty ladders in the shop somewhere. He should do a SRS to address this problem. Perhaps even a cluster sample where he breaks the shop's floor area into various chunks and does random sampling based on that. A cluster sample is useful because some areas of the shop may be better or worse off compared to others. Eg: if there's a leak in the roof in one spot, or if there's more moisture, then that cluster is different from the rest that don't have such issues.

In short, we have these answers in this exact order: No, No, Yes, Yes.

You are given data on number of radio ads and sales for a local department store. You had observations for 20 months. The correlation between ads and sales is 0.40. Does this indicate a positive and significant relationship between ads and sales at the 5% level of significance

Answers

Answer:

"No" would be the appropriate response. A further explanation is provided below.

Step-by-step explanation:

According to the question,

Number of observations,

n = 20

Significance level,

d = 5%

i.e.,

= 0.05

Calculated correlation,

= 0.40

Critical correlation value will be:

= 0.444

According to the question, we can see that the calculated correlation i.e., "0.40" is far less than the critical correlation value i.e., "0.444". The null hypothesis has always been not rejected. Thus it doesn't indicate the significant relationship.

So the above it the right response.

HELP ASAP PLS ANSWER THE QUESTION IN THE PIC I GIV BRAINLEST AND LOTS OF POINTS TO CORRECT ANSWER

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Answer:

What the question ?

The Martins drove the car from 7 a.m. to 4 p.m. and
traveled 468 miles. Their average speed was how many
miles
per
hour?

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Their average speed was 52 miles per hour

What number goes into both 21 and 30

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Answer:

Step-by-step explanation:

21/3 = 7

30/3 = 10

PLEASE HELP. I NEED TO GET THIS RIGHT

Answers

Ciro is right

Gerard is wrong

Gunther is also wrong

Equal expression:

1 - 2(40x - 12)

OMG PLEASE HELP! THIS ASSIFNMENT DUE IN LIKE 5 MINUTES!! (Sorry if blurry pic)

Answers

Answer:

I think the 3rd answer

Step-by-step explanation:

find the area of the sector.

image and anwser choices is in the image please helpp i’ll give brainliest

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ans. 11.16 in square
80/360*pi*4square

how many different ways can officers be appointed

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32,760 hopefully this helps

What is the equation of an exponential function?
1)y=mx+b
2)a=b+c
3)y=a (b)^x
4)y=ax^2+bx+c

Answers

The is answer is choice 3

Jessica's school bus stop is 60 yards from her house. For a normal school week, how many feet will Jessica walk to and from the bus stop.

Answers

Answer:

1,800 feet

Step-by-step explanation:

Assuming that the normal school week is 5 days, she will walk for 5 days to and from. Each day she will walk 120 yards to and from the stop. Multiply that number by 5 and you get your answer of 600 yards. The answer is wanted in feet, so you have to consider yards to feet conversions. 1 yard is three feet. Therefore, you multiply 600 by 3 and you get your answer in feet.

12 4/9 +14 5/12= What’s the answer for this problem

Answers

Answer:

The answer would be 28 93/108 or 28 31/36

Step-by-step explanation:

Answer:

26 31/36

Step-by-step explanation:

!!!!!!! please help!!!!!!

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Answer:

The population is decreasing.

Step-by-step explanation:

As x, time, increases, the y, population, decreases. It too has a negative slope.

Answer:

Step-by-step explanation:

Which of the following applications of undefined terms made use of the concept of point as a location in space?
A RADAR. C laser beam
b tip of needle. D mole o a face

Answers

the answer to this is A

Question on imagine

Will give 95 points if answer quickly

Answers

Answer:

B its 40cm^2

Step-by-step explanation:

break this odd shape up into two smaller ones like a 5x4 box and a 2x10 rectangle and add those two area together

Answer:

C).

Step-by-step explanation:

Find the area of this shape pleaseeeeee

Answers

Answer:

22 meters squared

Split the figure into a 2*9 rectangle and 2*4 triangle

awnser please dont have much time

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pretty sure it's this one couldn't see the bottom though

ABC is a straight line and angle CBD is 116

Answers

I think this is what your talking about

why is water not used as a solvent in paper chromatography

Answers

Answer:

Because the kind of compounfds that you try to determine using paper chromatography (organic compounds) are usually not soluble in water. Furthermore, water could react chemically with some of this compounds, because it's a very reactive molecule. You need organic solvents that are mostly inert.

To determine whether the pipe welds in a nuclear power plant meet specifications, a random sample of welds is selected, and tests are conducted on each weld in the sample. Weld strength is measured as the force required to break the weld. Suppose the specifications state that mean strength of welds should exceed 100 lb/in2; the inspection team decides to test
H0:μ=100 versus Ha:μ>100.
Explain why it might be preferable to use this Ha rather than μ<100.
A. We want to determine if there is significant evidence that the mean strength of welds differs from 100 lb/in2. The current hypotheses correctly place the burden of proof on those who wish to assert that the specification is not satisfied.
B. We want to determine if there is significant evidence that the mean strength of welds is less than 100 lb/in2. The current hypotheses correctly place the burden of proof on those who wish to assert that the specification is not satisfied.
C. We want to determine if there is significant evidence that the mean strength of welds exceeds 100 lb/in2. The current hypotheses correctly place the burden of proof on those who wish to assert that the specification is satisfied.
D. We want to determine if there is significant evidence that the mean strength of welds equals 100 lb/in2. The current hypotheses correctly place the burden of proof on those who wish to assert that the specification is satisfied.

Answers

Answer:

C. We want to determine if there is significant evidence that the mean strength of welds exceeds 100 lb/in2. The current hypotheses correctly place the burden of proof on those who wish to assert that the specification is satisfied.

Step-by-step explanation:

Given

[tex]\mu = 100[/tex]

[tex]H_0:\mu = 100\\\\H_a:\mu > 100[/tex]

Required

State why it is preferred to [tex]Ha: \mu < 100[/tex]

From the question, we understand that the initial test is the force required to break the weld.

This represents the null hypothesis

Because the required force can not be less than the strength of the weld (it must match the force keeping the weld), the null hypothesis is represented as:

[tex]H_0:\mu = 100[/tex]

Reading the question further;

The specification requires that the mean strength should exceed 100

In inequalities, exceeds means greater than, and it is represented with >

So, the null hypothesis is rightly represented as:

[tex]H_a:\mu > 100[/tex]

Hence: (c) is true

2. Find to the nearest foot the height of a vertical post if its shadow is 18 feet long when
the angle of elevation of the sun is 38º.

Answers

It’s 16.8 foot or sum like that

A sociologist recently conducted a survey of citizens over 60 years of age who have net worths too high to qualify for Medicaid but have no private health insurance. The ages of the 25 uninsured senior citizens were as follows: Suppose the mean and standard deviation are 74.04 and 9.75, respectively. If we assume that the distribution of ages is mound-shaped and symmetric, what percentage of the respondents will be between 64.29 and 93.54 years old

Answers

Answer:

81.85% of the respondents will be between 64.29 and 93.54 years old

Step-by-step explanation:

Normal Probability Distribution:

Problems of normal distributions can be solved using the z-score formula.

In a set with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the zscore of a measure X is given by:

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

Mean and standard deviation are 74.04 and 9.75

This means that [tex]\mu = 74.04, \sigma = 9.75[/tex]

What percentage of the respondents will be between 64.29 and 93.54 years old?

The proportion is the pvalue of Z when X = 93.54 subtracted by the pvalue of Z when X = 64.29. So

X = 93.54

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

[tex]Z = \frac{93.54 - 74.04}{9.75}[/tex]

[tex]Z = 2[/tex]

[tex]Z = 2[/tex] has a pvalue of 0.9772.

X = 64.29

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

[tex]Z = \frac{64.29 - 74.04}{9.75}[/tex]

[tex]Z = -1[/tex]

[tex]Z = -1[/tex] has a pvalue of 0.1587.

0.9772 - 0.1587 = 0.8185

0.8185*100 = 81.85%

81.85% of the respondents will be between 64.29 and 93.54 years old

10 POINTS PLS ANSWER

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Answer:

Step-by-step explanation:

FGE is a straight line, and striaght lines measure 180 by definition. Therefore, x, angle BGA, and 55 all add together to equal 180. But notice that x and 55 are both marked with a single swish, meaning they are the same measure. So:

180 - 55 - 55 = x, so

x = 70

expression equivalent to (4x+3)+(-2x+4) is

Answers

Answer:

7x + 2x

Step-by-step explanation:

9x^2

Answer: 2x+7

Step-by-step explanation:

Since I am going to assume that you want me to simplify this expression, thats what I'm going to do.

1. Distribute the +1: 4x+3-2x+4

2. Combine like terms: 2x+7

Have a nice day! :D

300 hundreds= how many tens! Pls answer ASAP

Answers

Answer:

300÷10=30

Step-by-step explanation:

hope this helps

Answer:

there are 30 tens in 300

Step-by-step explanation:

For the following right triangle, find the side length x. Round your answer to the nearest hundredth.
12
11

Answers

Answer:

4.80

Step-by-step explanation:

To find the solution to this problem we will use the Pythagoras theorem.

[tex] {c}^{2} = {a}^{2} - {b}^{2} [/tex]

[tex] = \sqrt{ {12}^{2} - {11}^{2}} \\ = 4.7958... \\ = 4.8[/tex]

There are 12 boys and 15 girls in my classroom. What is the ratio of girls to total students in the classroom?

Answers

I acidently removed the stuff but anyways the answer is 12:27 or 12 to 27

do 12 + 15 = 27, and so 12 to 27 :)

The graph below shows Marlee's speeds through the duration of her run. Over which interval is Marlee's average rate of change equal to zero?

Answers

Answer:

1 to 5

Step-by-step explanation:

Avg rate of change = 0

m=0

In the interval between 1 to 5, the average rate of change is zero. No increase or decrease.

PLEASE HELP ME AND MY FRIEND WITH THIS PROBLEM!!

Answers

Answer:

36 possible outcomes

Step-by-step explanation:

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