Math club has a mean score on a standardized test of 85 with a standard deviation of 3. What is the probability of scoring below a 79 on the test?
2.5%
1
2.35%
.15%
2
2.65%

Answers

Answer 1

Answer:the second one

Step-by-step explanation:


Related Questions

The temperature of a liquid is changing by -4.32 degrees celsius per minute. What will be the temperature change, in degrees Celsius over a period of 6.5 minutes?

Answers

Answer:

-28.08 degrees celsius

15 1/2 + 12 2/3 + 10 3/4 as a mixed number in simplest form help asap

Answers

Answer:

37 23/12

Step-by-step explanation:

First, make them all have a common denominator.(12) Then, multiply as needed. Lastly, add all three number together.

Answer:

38 11/12

Step-by-step explanation:

Turn all denominators to 12. what you do the the bottom due to the top.

A train goes at a constant speed. If it covers 150 miles in 2 1 2 hours,

What distance would it cover in 7 hours?

Answers

Answer: I think is 420 miles in 7 hours

hope this helps :D

Step-by-step explanation:

Answer:

A train would cover 180 miles in 3 hours, So in 6 hours it will cover 360 miles, in 7 hours it will cover 420 miles.

Step-by-step explanation:

150 miles → 2 1/2 hours = 150 minutes

x miles     → 3 hours = 180 minutes

(150 × 180) ÷ 150 = x miles

27,000 ÷ 150 = x miles

180 = x miles

Is -12 divided by -5 a rational number or irrational

Answers

Answer:

Rational

Step-by-step explanation:

Hope this helps!!

Any terminating decimal is a rational number. 2.4=2 4/10 or 24/10 which reduces to 12/5 To integers represented

Estimate the value of 13 (between which two whole number)

Answers

Answer:

C

Step-by-step explanation:

between three and four

it would be probably 4

7y−4(9/4y−6). simplified

Answers

Answer:

−2y+24

Step-by-step explanation:

Let's simplify step-by-step.

7y−4(9/4y−6)

Distribute:

=7y+(−4)(9/4y)+(−4)(−6)

=7y+−9y+24

Combine Like Terms:

=7y+−9y+24

=(7y+−9y)+(24)

=−2y+24

Answer
-2y+24
Pls mark brainliest




Jsjsjsjsjsjsjsjsjsjsjsjsj

Can someone help me plz

Answers

Answer:

81 is d answer

Step-by-step explanation:

x = 9y

= > 9y + y = 90 substitution

= > y = 9

x =9y = 81 degree

Simplify: 23x - 11x
Enter the original expression if it cannot be
simplified.

Answers

Answer:

23x-11x= 12x :)

Step-by-step explanation:

Answer: 12x

Step-by-step explanation: 23x-11x= 12x

find the length of the angle inducated for each trapezoid.​

Answers

First things first: all quadrilateral have an interior of 360⁰. With that info, you can do your exercice.

the first one:

the angle P =90⁰

the angle Q=90⁰

So you do the deduction:

360⁰-90⁰-90⁰-65⁰= 115⁰

the second one:

the angle F=60⁰

so you do the same thing as number one:

360⁰-60⁰-60⁰= 240⁰

240⁰/2= 120⁰

Voilà!

(0,0) is a solution to y> -3x + 4

Answers

Answer:

(0,0) is a solution.

Step-by-step explanation:

To see if this is true you can put (0,0) into the [tex]y[/tex] and [tex]x[/tex] variables like so: [tex]0>-3(0)+4[/tex]. When you solve this you get [tex]0>4[/tex] so this statement is true

Find the value of f(5) for the function.
f(a) = 5(a + 3) - 9
f(5)=(Simplify your answer.)

Answers

Answer:

f(5)=31

Step-by-step explanation:

f(5)=5(5+3)-9

=5(8)-9

=40-9

=31

Order the values from least to greatest
|-7|
-2
|-6|
-6
10

Answers

Answer:

-6, -2, |-6|, |-7| 10

Step-by-step explanation:

f (x)=-x2 + 4x, solve for f(3)

Answers

Answer:

f(3) = 6

Step-by-step explanation:

F(3)=-(3)2+4(3)

f(3) = -6 + 12

f(3) = 6

which set of numbers represents a Pythagorean triple
6,9,12
7,10,12
16,18,25
27,36,45

Answers

Answer:

27,36,45

Step-by-step explanation:

Pythagorean theorem

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

[tex]6^{2}+ 9^{2}\\ =117\\\neq 12^{2}[/tex]

[tex]7^{2}+ 10^{2}\\ =149\\\neq 12^{2}[/tex]

[tex]16^{2}+ 18^{2}\\ =580\\\neq 25^{2}[/tex]

[tex]27^{2}+ 36^{2}\\ =2025\\= 45^{2}[/tex]

Which of the following is 7/18 closest to?
-0
-1/2
-1​

Answers

Answer:

I guess -1/2?

Step-by-step explanation:

Answer: 0

0 is closest to 7/18 on a number line. -1 is 1 farther than zero. -1/2 is one half way from the number 7/18. So, the answer to the question is 0.

Hope this helps!

HELP!!
Are triangles ABC and ALM congruent

A. Yes by AA

B. Yes by SSS

C. Yes by SAS

D. They are not similar

Answers

Answer:C

Step-by-step explanation:

Name a linear pair.

Answers

Answer:

(angle AFB, angle BFC)

Answer:

angle afc

Step-by-step explanation:

What is the distance from. P to n, shown in the figure?

A. -3
B. 1
C. 4
D. 5​

Answers

Answer:

-5

Step-by-step explanation:

y2-y1/x2-x1

0-5/4-3

-5/1

giraffe can run up to 46.93 feet per second. How far could a giraffe run in 1.8 seconds?

Answers

Answer:

84.474

Step-by-step explanation:

46.93 x 1.8 = 84.474

Answer:

The giraffe could run 84.474 feet in 1.8 seconds.

Step-by-step explanation:

cross multiply

1x= 84.474

x= 84.474 ft

Could someone help me out pls? I’m taking a test and I’d love help on this thanks <3

Answers

Answer:

AC = DE

Step-by-step explanation:

What is the slope of the line? (Picture)

Answers

the slope will be 8/5

2b/3-5=3 what is the value of b​

Answers

Answer:

‒3

Step-by-step explanation:

2b/3‒5=3

2b=3(3‒5)

2b=3(‒2)

2b=‒6

2b/2=‒6/2

b=‒3

you can proof as the following(by replace ‒3)

2(‒3)/3‒5=3

‒6/‒2=3

3=3

i hope it helps you

Solve

6x + 5 = 3x + 14

Answers

Answer:

x = 3

Step-by-step explanation:

Step 1: Subtract 3x from both sides.

6x + 5 − 3x = 3x + 14 − 3x

3x + 5 = 14

Step 2: Subtract 5 from both sides.

3x + 5 − 5 = 14 − 5

3x = 9

Step 3: Divide both sides by 3.

[tex]\frac{3x}{3} = \frac{9}{3}[/tex]

x = 3

Hope it helps!!

The solution of the linear equation with a single variable 6x + 5 = 3x + 14 will be 3.

What is the solution to the equation?

The allocation of weights to the important variables that produce the calculation's optimum is referred to as a direct consequence.

The definition of simplicity is making something simpler to achieve or grasp while also making it a little less difficult.

The equation is given below.

6x + 5 = 3x + 14

Simplify the equation, then we have

6x + 5 = 3x + 14

6x - 3x = 14 - 5

3x = 9

x = 3

The solution of the linear equation with a single variable 6x + 5 = 3x + 14 will be 3.

More about the solution of the equation link is given below.

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Which equation represents the line that passes through points B and C on the graph?


On a coordinate plane, point A is at (1, 4), point B is at (negative 4, 2), point C is at (negative 2, negative 2) and point D is at (5, negative 4).
y = negative 2 x minus 6
y = negative 2 x + 10
y = 2 x minus 6
y = 2 x + 10

Answers

Answer:

The answer is A y = -2 x - 6

Step-by-step explanation:

I got this question right on the test I took. Hope this help!

Answer:

a

Step-by-step explanation:

i got it right on edg 2020

Please help I've been staring at this thing for 30 minutes it says I have to match the segments with its measure I don't understand what goes where :(

Answers

Answer:

I believe AC=63, BG=28, GC=38, And AE=70. So really just like how it's listed in order. If you need further Help, please let me know!

Step-by-step explanation:

a sqaure tile has a width of 1/4 foot. how many tiles will fit end to end along a 4 foot wall

Answers

Answer:

16- this question is already here from other people! :-)

Step-by-step explanation:

I need help in MATH!!!!!!!!!!

Answers

I think the answer is 41 bc 17+24=41

Answer:

XZ=41

Step-by-step explanation:

I'm pretty sure all you do is add 17 to 24

The volume of a rectangular prism is the product of its length, width, and height. The length of a rectangle prism is 3 feet more than five times its height. The width is 5 feet less than six times its height. Express the length and width in terms of the height h. The length is The width is (Be sure to Write down the expanded form of the expression for the volume: expand the volume expression) (Express the interval in which the In what range must the height fall? He height must be)

Answers

The length and width in terms of the height h is  5h+3 feet and 6h-5 feet respectively, the volume will be  [tex]30h^3 - 7h^2 -15h[/tex] units and the height must be in the interval of [tex][0,\infty)[/tex].

According to the question,

The height of the rectangular prism is h.

The length of the rectangular prism  is  5h+3 feet

The width of the rectangular prism  is  6h-5 feet

The volume of the rectangular prism can be calculated as:

[tex]Length \times width \times height = Volume[/tex]

Substitute the value of height, length  and width in the formula:

[tex]V = (5h+3) \times (6h-5) \times h[/tex]

V = [tex](30 h^2 -7h-15)h[/tex]

[tex]V = 30h^3 - 7h^2 -15h[/tex]

The height is always positive. So, the interval in which the In what range must the height fall is [tex][0,\infty)[/tex].

The length and width in terms of the height h is  5h+3 feet and 6h-5 feet respectively and the volume will be  [tex]30h^3 - 7h^2 -15h[/tex] units

The height must be in the interval of [tex][0,\infty)[/tex].

Learn more about rectangular prism here:

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2/9x + 3 > 4 5/9
what graph shows the values that satisfy the expression

Answers

Answer:

Step-by-step explanation:

In graphing inequalities, the first thing to do is graph the equation first irregardless of the inequality symbol. In the given problem, the equation to be graphed is f(x) = 2/9x + 3. Since it has a general form of y=mx + b, this is a linear function. Plot the graph by assigning arbitrary points of x, then you get the corresponding f(x) values. Graph the x values against the f(x) values. The blue line the attached picture will be formed.

Next, you solve the equation by finding x. Just don't mind the inequality symbol:

2/9 x + 3 > 4 5/9

2/9x > 4 5/9 - 3

2/9x > 14/9

x > 14/9 ÷ 2/9

x > 7

Hence, the value of x must be greater than 7. To show this in the graph, find the line where x=7. Create a partition using that line, then shade the rest of the portion where x is greater than 7 until infinity.

Which expression is equivalent to sin(20°)cos(80°) – cos(20°)sin(80°)?

sin(–60°)
cos(–60°)
cos(60°)
sin(60°)

Answers

Answer:

A. sin(-60°)

Step-by-step explanation:

test on edge

Answer of given expression is sin(-60°)

What is Trigonometric functions?

Trigonometric functions defined as the functions which show the relationship between angle and sides of a right-angled triangle.

Given expression,

sin(20°)cos(80°) – cos(20°)sin(80°)

sin(A-B) = sinA.cosB – cosA.sinB

∴ sin(20°-80°)

So, sin(-60°)

Learn more about Trigonometric functions

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