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3 years ago

Please help with this question from Khan Academy!!!!!!!!!!!!!!!!!!!!!!

Mathematics

1 answer:

Vladimir79 [104]3 years ago

5 0

Answer:

B = 42

Step-by-step explanation:

B × 2/7 = A

A ÷ 2/7 = B

12 ÷ 2/7 = B

B = 42

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Can Someone help me?

olchik [2.2K]

First question
1:C 2:D 3:B 4:D

second question
0-2+5

6 0

3 years ago

Read 2 more answers

Jessii Vee is 1 5/8 gallons of paint to paint her room so he has 5/6 gallons of paint. How many more gallons of paint does she n

irakobra [83]

Answer:

3 1/2 gallons of paint

Step-by-step explanation:

1 5/8 - 5/6 = x

Turn the mixed number into an improper fraction:

1 5/8 = 13/8 = x

13/8 - 5/6 = x

make the denominator the same:

13/8 * 3 = 104/24

5/6 * 4 = 20/24

Subtract:

104/24 - 20/24 = 84/24

Simplify:

84/24 divided by 6 = 14/4

14/4 divided by 2 = 7/2

Turn into a mixed number:

3 1/2

Hope this helps!!! ~Carley

3 0

2 years ago

Graph the ellipse with equation x^2 /25 + y^2 /4 = 1.

nexus9112 [7]

Center: 0,0
vertex: 5,0
vertex2 (-5,0)

4 0

2 years ago

Which angles are complementary to each other?

Oksi-84 [34.3K]

Answer:

All apply

Step-by-step explanation:

Complementary angles are ones that total 90°. Here, we have two pairs of congruent angles such that each pair totals 90°. We can mix and match to find pairs of complementary angles.

less than 45°: BGC and EGF

more than 45°: AGB and DGE

A complementary pair will consist of one angle from the first list and one angle from the second list. There are 4 possible pairings, and all are shown as answer choices.

All of the choices apply.

3 0

2 years ago

Given f(x) = x^2+4, does there exist an x-intercept between [-2, 3]. Why or why not. Be sure to include in your discussion the I

Anna35 [415]

The x-intercepts are the values of x for which f(x) = 0.
x^2 + 4 = 0
x^2 = -4
x= ±√(-4), which are not real numbers. f(x) does not have an x-intercept.

7 0

2 years ago