Marsha heard that 15% of her algebra class failed.If there were 20 students in the class, how many did not pass?

Answer:

median score

Step-by-step explanation:

Answer:

108

Step-by-step explanation:

Answer:

108 yd^2

Step-by-step explanation:

Cut the figure in half. Make a rectangle and a square.

Now u got a 6ydx6yd square.

And a 6ydx12yd rectangle.

Figure out the square 1st.

6x6=36yd^2

Now figure out the rectangle.

6x12=72yd^2

Now add them together.

72+36=108yd^2

Answer:

95%

Step-by-step explanation:

So, we can see on the chart that 78 out of 82 people from ages 18 to 22 use Face.book. So we're trying to find what percentage 78 is of 82:

The first step is to write 78 as a fraction of 82, which is:

78/82

In order to find the simplest form of 78/82 we cancel out the greatest common divisor of 78 and 82, which is 2 :

78/82 = 37/41  

Now we just need to convert this fraction to a percentage :

 37/41 = 95% (rounded)

So we have the final answer :

78 is 95% of 82

Which means that:

Approximately 95% of people from ages 18 to 22 use Face.book

hope this helps:)

Answer:

35%

Step-by-step explanation:

Answer:

(D) 81 feet      

Step-by-step explanation:

From the figure drawn, it is given that AB is parallel to DE, in ΔABC and ΔCDE, we have

∠BAC=∠DEC(Alternate angles)

∠ACB=∠DCE(Vertically opposite angles)

Thus, by AA rule, ΔABC is similar to ΔCDE.

Since the line connecting from the whales to the sharks is parallel to the line connecting from the penguins to the fish tanks, the triangles shown in the figure are similar. Using the property of similar triangles.

Hope this helped!!!

Answer:

81 feet

Step-by-step explanation:

i got it right on edge

Answer:

16π

Step-by-step explanation:

ooohhhh, that makes so much more sense, I wasn't actually supposed to substitute 3.14 for π, whoops, sorry

Answer:

The exponential equation is y = -2×(1/2)^x

Step-by-step explanation:

1) The horizontal asymptote of the function is the x axis (always nice)

2) At x=0, y=-2 (i.e, this function will be multiplied by -2 bc the exponent part will transform into one at x=0)

3) Then we need to ascertain the base of the exponential. Based on the facts that at x=1, y=-1 and the "a-value" is -2, we can set up an equation to find b:

can u give me the brainliest ?

Answer:

i think it  is a hope it helps

Step-by-step explanation:

Answer:

∠1 - 40°

Step-by-step explanation:

∠1 - 40°

b/c it's a right triangle and we have two angles given, 50° and 90°. Add them and subtract by 180° and get 40°.

∠2 - 140°

b/c an exterior (outside) angle is equal to the two most isolated / farthest angles added. The two most is angles are 105° and 35°, add them and get 140°.

∠3 - 40°

b/c ∠'s 1 and 3 are vertical angles meaning they're equal so since ∠1 is 40°, so is ∠3.

∠4 -

b/c ∠' s 2 and 4 are vertical angles meaning they're equal so since ∠2 is 140°, so is ∠4.

∠5 - 35°

b/c we have two angles, 105° and 40°. Add them and subtract by 180° and get 35°.

hope that helps lol >:)

Answer:

its c

Step-by-step explanation:

Answer:

x=20 degrees

2x-7+6x+7+20=180

Step-by-step explanation:

the total degrees of a triangle is 180

Answer:

244140625 or 5^12

Step-by-step explanation:

When it comes to multiplication, you add exponents IF the base (the 5 at the bottom is called base) is the same answer. for example: 1^16 x 1^9, since the exponents are the same you just add the exponents (16 & 9) which is 25 or 1^25

Dividing is the same as multiplying except your subtracting with the examples, adding and subtracting is simplifying and solving, for example

14^2 + 13^3

          14 * 14 = 196

                   13*13*13 =2,197

          196+2,197 = 2,393

Same thing for subtraction

13^3 - 14^2

2,197 - 196 = 2,001

Hope this helps

~R3V0

Answer: 50 cases per minute

Step-by-step explanation:

1. Select one of the points on the graph. Let's use (2, 100) in this case.

2. Divide the number of cases (y) by the amount of minutes (x) This means the equation would be 100 ÷ 2.

3. Since 100 cases ÷ 2 minutes = 50 cases per minute, that means that is unit rate, which can be expressed by y = 50x or f(x) = 50x.

Answer:

3063

Step-by-step explanation:

;D B

Answer:

3448.5

Step-by-step explanation:

I=PRT

I=22990×0.05×3

=$3448.5

Answer:

it would be D. For every minute it is doing 8 peices

Step-by-step explanation:

Answer: 20°

Step-by-step explanation:

There is 180 degrees in the triangle.  ∠C is 50°,  ∠A is 80°,  ∠B is 30°, and the total adds up to 160°, so 180-160 equals 20.

Answer: 20 degrees

Step-by-step explanation: if you add up the angles of any triangle, the sum should always be 180. so add up angle A and angle C :

80 + 50 = 130

subtract that from 180 to find out what angle ABC is:

180 - 130 = 50

since we know that angle ABD is 30 degrees, all we have to do now is subtract that from 50:

50 - 30 = 20

angle DBC = 20 degrees

Answer:

D) Ping pong ball, cotton ball, baseball, bowling ball, wrecking ball.

Step-by-step explanation:

If they are moving at the same time, the objects that have more mass have more kinetic energy.

the heaviest is the wrecking ball, and then the bowling ball, the baseball, the cotton ball, and the ping pong ball.

The only answer that follows this (in reverse) is D

Answer:

C. (5-1), (5-2), (5-3), (5-4), (5-5), (5-6)

Step-by-step explanation:

So let's look at the choices and find which one has only one 3 (3's will be boldened for convenience).

A. (1-1), (2-2), (3-3), (4-4), (5-5), (6-6)

A has two three's, so it's out.

B. (1-3), (2-3), (3-1), (3-2), (3-4), (3-5), (3-6), (4-3), (5-3), (6-3)

B has 10 three's, so it's also out.

C. (5-1) (5-2) (5-3) (5-4) (5-5) (5-6)

C has 1 three, so it's correct. However I will still test D to make sure.

D. (1-6) (2-5) (3-4) (4-3) (5-2) (6-1)

D, like A, has two three's, so it's out.

With that information, we can deduce that C has the favorable outcomes for rolling exactly 1 three.

Answer:

Step-by-step explanation:

we need to find the surface area of the shapes before adding them together. the triangles are 6*4 and since there are two, we do not need to divide by 2. (normally to find the area of a triangle it is base times height divided by 2)

so the area of the triangles are 24 units. Next we have the outer rectangles. 7*5=35. Since there are 2, we multiply by 2. Last we have the middle rectangle. 7*6=42.

the whole equation would be: 24+70+42= 136

so your answer would be B: 136.

hope this helps :)

Answer:

56.52

Step-by-step explanation:

This is because in order to find an area of a circle you must do R^2*3.14 and since it is a semicircle add /2 so R^2*3.14/2 and since half of 12 is 6, 6*6 is 36 and 36*3.14 is 113.04 and divide that by 2 which is 56.52

Answer:

177.475 [tex]inches^{2}[/tex]

Step-by-step explanation:

Since the formula for finding the area of a full circle is A = π[tex]r^{2}[/tex], area equals pi times radius squared, we fill out the formula and solve.

A: unknown

Pi: 3.14

Radius: diameter is 12, so you divide it by 2, which is 6.

A = 3.14 x 6 squared.

using pemdas, you do exponents first,

A = 3.14 x 36

A ≈ 113.04

Now that we have the area for the full circle, we divide it by two to find the area of the semicircle,

113.04/2

= 56.52

So, the area of the semicircle is 56.52 [tex]inches^{2}[/tex]

This is my 3rd answer as a helper, I hope it helped!

Answer:

The answer is C

Step-by-step explanation:

90/200

please mark this answer brainlest

Answer:

60

Step-by-step explanation:

add 43 and 17. to check, subtract the answer by 17 and make sure it equals to 43. your welcome

Answer:

t=60

Step-by-step explanation:

60-17=43

Answer:

$1002.27

Step-by-step explanation:

940×6.625%= $62.27

$940+$62.27= $1002.27

Answer:

∠4 = 102°

Step-by-step explanation:

∠4 = 180 - 78 = 102°

Answer:

The answer is 3 (112 Degrees).

Step-by-step explanation:

Search it up-

Wheres my cookie- :D

Answer:

Step-by-step explanation:

Quantity of tea leaves used  for one morning = 6 grams

Quantity of tea leaves used for 'x' days = 6 *x = 6x grams

Quantity of tea leaves left after x days = 540 - 6x

Expression: 540 - 6x

Quantity of tea leaves remaining after 17 days = 540 - 6*17

                                                                             = 540 - 102

                                                                             = 438 grams

Answer:

x = 39 degrees

Step-by-step explanation:

Using it's concept, it is found that the probability of spinning an odd number, not flipping heads, then not spinning a 6 is:

[tex]p = \frac{20}{81} = 24.69\%[/tex]

A probability is given by the number of desired outcomes divided by the number of total outcomes.

In this problem:

Then, the probability of the compound event is:

[tex]p = \frac{5}{9} \times \frac{1}{2} \times \frac{8}{9} = \frac{20}{81} = 24.69\%[/tex]

More can be learned about probabilities at https://brainly.com/question/14398287

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