Answer:
¿De que manera usted se informa a la hora de elegir un candidato presidencial? ENTRAR AL LINK es una encuesta de 1 pregunta ,GRACIAS
https://forms.gle/VqfekaGgk8cfJhPW9
Step-by-step explanation:
Suppose a jar contains 12 red marbles and 18 blue marbles. If you reach in the jar and pull out 2 marbles at random, find the probability that both are red. Write your answer in decimal form, rounded to the nearest thousandth.
THIS IS 7TH GRADE MATH SO ITS EASY
Answer:
b
Step-by-step explanation:
Milo wants to put a fence around the dog park near his house. He measures the sides and finds they are 7 m and 8 m long. He multiplies 7×2 and 8×2 and finds he needs 30 m of fencing.
Which measurement does 30 m?
Choose 1 answer:
(Choice A)
Perimeter
(Choice B)
Length
(Choice C)
Area
Answer:
(Choice A) Perimeter
Step-by-step explanation:
It can't be the length, because it states in the question that the length is 7 m
and it can't be the area because lw = 7(8) = 56 is the area.
What is the answer for b, and why?
Can this expression be simplified? If not, explain why. WILL MARK BRAINLIEST.
Answer:
yes
Step-by-step explanation:
see attached graph - there are two real roots for y=2x^4-6x^2+10x-7
so 2x^4-6x^2+10x-7 can be expressed as:
(x - root1)(x - root2)(2x^2+Bx+C)
Answer:
Yes, it can be.
Step-by-step explanation:
Using solver program, the expression 2x^4-6x^2+10x-7 has:
two real roots at x≈-2.3888 and x≈1.1424
and
two complex roots at x≈0.62321 - 0.94559 i and x≈0.62321 + 0.94559 i
Because it has two real roots, the expression can be simplified.
Find angle x to the nearest tenth.
47
73
78
A) 36.1
B) 66.2
C) 26.3
D) 31.6
In a fruit cocktail, for every 25 ml of orange juice you need 30 ml of apple juice and 45 ml of coconut milk. What proportion of the cocktail is coconut milk?
Give your answer as a fraction in its simplest form.
Answer:
9/20
Step-by-step explanation:
45/100 or 9/20
please help me with this i really need help
Answer:
the boxes are this
top left: 9
top right is 7
bottom right is 9
Step-by-step explanation:
Find the values of x and y. Write your answers in simplest form.
Answer:
x = 5√2
y = 15
Step-by-step explanation:
By applying sine rule in the given right triangle,
sin(60°) = [tex]\frac{\text{Opposite side}}{\text{Hypotenuse}}[/tex]
[tex]\frac{\sqrt{3} }{2}=\frac{y}{10\sqrt{2}}[/tex]
y = [tex]\frac{\sqrt{3} \times 10\sqrt{2} }{2}[/tex]
y = 15
Similarly, by applying cosine rule in the given triangle,
cos(60°) = [tex]\frac{\text{Adjacent side}}{\text{Hypotenuse}}[/tex]
[tex]\frac{1}{2}=\frac{x}{10\sqrt{2}}[/tex]
x = 5√2
Please help me with this assignment. Thank you!
Answer:
I hope this ans helps you
The dot plots show the number of hours a lightbulb lasts from two different brands. Brand A. Number of hours per lightbulb 1000 4200 1400 1500 1800 2000 Brand B Number of hours per lightbulb .. 1200 1400 1600 1800 2000 Which of the following statements is correct? A. There were more lightbulbs in the dot plot for brand B than in the dot plot for brand A. B. The mean for brand A is the same as the mean for brand B. C. The mean for brand A is higher than the mean for brand B. D. The mean for brand B is higher than the mean for brand A.
Answer:
Step-by-step explanation:
The mean for brand A is higher than the mean for brand B
The mean for brand A is higher than the mean for brand B because the mean for A is 1983.33 and the mean for B is 1600 statement (C) is correct.
What is mean?It is defined as the single number that represents the mean value for the given set of data or the closed value for each entry given in the set of data.
We have:
For brand A:
The number of hours per lightbulb:
1000, 4200, 1400, 1500, 1800, 2000
Mean for brand A:
[tex]\rm Mean(A) = \frac{Sum \ of \ all \ data \ values}{Number \ of \ data \ in \ the\ set}[/tex]
[tex]\rm Mean(A)= \frac{1000+4200+1400+1500+1800+ 2000}{6}[/tex]
[tex]\rm Mean(A)= \frac{11900}{6}\\\\\rm Mean(A) = 1983.33[/tex]
For Brand B:
The number of hours per lightbulb:
1200, 1400, 1600, 1800, 2000
Mean for brand B:
[tex]\rm Mean(B) = \frac{Sum \ of \ all \ data \ values}{Number \ of \ data \ in \ the\ set}[/tex]
[tex]\rm Mean(B)= \frac{1200 +1400 +1600 +1800 +2000}{6}[/tex]
[tex]\rm Mean(B)= \frac{8000}{5}\\\\\rm Mean(B) = 1600[/tex]
We can see that:
Mean(A) > Mean(B)
Thus, the mean for brand A is higher than the mean for brand B because the mean for A is 1983.33 and the mean for B is 1600 statement (C) is correct.
Learn more about the mean here:
https://brainly.com/question/22871228
Jessica always uses the same ratio of green beads to blue beads when she makes necklaces. The graph shows these equivalent ratios.
Which table shows the same data?
Answer:
It would be the second table
Step-by-step explanation:
If you look at the three points on the graph, (2,3) (4,6) (6,9), the should correspond or match with the x and y values in the table.
In the second table, the x values are 2, 4, and 6. the y values are 3, 6, and 9.
The area of the state of Nevada can be estimated using a trapezoid. Estimate the area of the state of Nevada.
A. 31,672 mi2
B. 78,980 mi2
C. 110,622 mi2
D. 131,327 mi2
Answer: 31,672 mi2
Step-by-step explanation:
The area of the state of Nevada can be estimated using a trapezoid
blank plus 1/2 equals to 4/6
Answer:
The fraction in the blank is 1/6!
Step-by-step explanation:
First:
X + 1/2 = 4/6
-1/2. -1/2
4/6 - 1/2 = 1/6
X = 1/6
So the blank is 1/6
Starting at noon, Emily observed the amount of snow on her lawn during a blizzard.
She wrote an equation to represent s, how many inches of snow were on the lawn:
S = 0.024x + 7, where x represents the number of minutes past noon. What could
the number 0.024 represent in the equation?
Answer:
0.024 represents the amount of snow that is added to the lawn every minute.
Step-by-step explanation:
Emily observed the amount of snow on her lawn during a blizzard. So, 0.024 in the equation shows the rate at which snow is coming with the number of minutes passing.
What is an equation?Equations are mathematical expressions that have two algebras on either side of an equal (=) sign. The expressions on the left and right are shown to be equal to one another, demonstrating this relationship. L.H.S. = R.H.S. (left-hand side = right side) is a fundamental simple equation.
For an unknown quantity represented by an unknown variable, equations are then solved to determine its value. It is clear that a statement is not even an equation if there is no "equal to" sign in it.
As per the given equation in the question,
S is the snow in inches.
x shows the time in minutes and,
0.024 is the rate along with the time at which the snow is accumulating in the lawn and 7 in the equation is the constant value.
To know more about an equation:
https://brainly.com/question/14686792
#SPJ2
1⁄2 · n = 3 I don't know what to do
Answer:
n=6
Step-by-step explanation:
[tex]\frac{1}{2} n=3[/tex]
Multiply both sides by 2
2*1/2n=3*2
Simplify;
n=6
Answer: n=6
Step-by-step explanation:
6*1/2=3 so this is y n=6.
102 x5 multiply with expanded form
Please show your work because I have to also show my work.
Step-by-step explanation:
1. add the x's together so 5x
add the y's together which is 0
add the numbers together which it's 10
5x=10 x =2
plug 2 in either original equation and you get y=-2
A pair of flip flops is $30. How much will they cost after a 20% discount and 6.5% tax?
Answer:
$6.39
Step-by-step explanation
well, 20% of $30 is $6, so then you just have to add on the tax, which is 39 cents, coming to $6.39
Answer:
25.56
Step-by-step explanation:
30 divided by 4 is 6 so 30- 6=24
6.5% of 24=1.56 sooooo 24+1.56=25.56
Which line is perpendicular to 5y + 2x = 10?
2x + 5y = 10
10x - 4y = 8
y + 5x = -2
y = - 2x + 10
Choose the correct answer below.
O A. y = - 2x + 10
OB. 10x - 4y = 8
O C. y + 5x = -2
OD. 2x + 5y = 10
If f(x) = 3x + 5, find f(2).
f(2) = ?
Answer:
[tex]3 \times 2 + 5 = 6 + 5 = 11[/tex]
How much wire is needed to fence a rectangular garden with measurements 20mmx25m
Answer:
500000mm
Step-by-step explanation:
First to have to convert the meters into millimeters (25mm×1000mm=25000mm) than you have to times the answer by 20 (25000mm×20mm=500000mm) and your answer is 500000mm
Austin plans to watch 2 movies each month. Write an equation to represent the total number of movies that he will watch in months.
Mr. Bruce has some clay with a mass of 24 kilograms. If he puts the same amount of clay into 6 bags, how many grams of clay are in each bag? I NEED THE EXPLANATION
Answer:
4000grams in each bag
Step-by-step explanation:
Assume he put x amount of clay into each bag, he then put 6x into 6 bags.(since the question didn’t mention, I assume he put every clay he has into the bags)
6x=24kg
x=4kg
Since the question is asking for grams not kilograms:
4kg=4000g
PLEASE HELP ME I AM GIVING 30 POINTS PLEASEEE
A 21 inch TV costs $150. It is advertised on sale for 32% off. What is the cost savings? Solve using two different methods.
Answer:
$48 in savings
Step-by-step explanation:
1.
150-(150*32%)=102
150-102=48
2.
30% of 150 is 45
2% of 150 is 3
45 plus 3 is 48
Please brainliest! I did both methods and explained!
What is the value of log, 81?
2
3
4
5
Answer:
log 81 = 1.90849
Step-by-step explanation:
log 81 = log 9^2 = 2 log 9 = 2(0.95424) = 1.90849
Which expression is equivalent (With explanation)
Answer:
log_7(6)
Step-by-step explanation:
log_7(2)+log_7(3)
log_7(2×3)
log_7(6)
Express the ratios as a fraction without reducing.
a. 6 : 13
b. 7 : 40
c. 45 : 36
d. 37 : 43
Answer:
a
Step-by-step explanation:
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Assume a significance level of α=0.01 and use the given information to complete parts (a) and (b) below. Original claim: The mean pulse rate (in beats per minute) of a certain group of adult males is 75 bpm. The hypothesis test results in a P-value of 0.0087. a. State a conclusion about the null hypothesis. (Reject H0 or fail to reject H0.) Choose the correct answer below. A. Reject H0 because the P-value is less than or equal to α. B. Fail to reject H0 because the P-value is less than or equal to α. C. Fail to reject H0 because the P-value is greater than α. D. Reject H0 because the P-value is greater than α.
Answer:
A. Reject H0 because the P-value is less than or equal to α.
Step-by-step explanation:
Decision:
If the pvalue of the test is less than the significance level, we reject the null hypothesis H0.
Otherwise, we fail to reject the null hypothesis H0.
In this question:
Significance level: 0.01
P-value: 0.0087
0.0087 < 0.01, so we reject H0.
The correct answer is given by option A.
can someone help me answer these short questions? thank you!
Answer:
#1 - a mathematical relationship or rule expressed in symbols which help you solve something
#2 - variables, which represent an aspect of the problem
#3 P is perimeter, L is length, W is width, A is area
#4 Because in order to find the perimeter, you need to multiply the length and the width twice then add them.
Step-by-step explanation: