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3 years ago

Help! how do I solve?

Mathematics

1 answer:

yanalaym [24]3 years ago

7 0

$( \frac{3}{4} )^2= \frac{3}{4} * \frac{3}{4}$ and multiply across. Then you have $\frac{9}{16} - \frac{1}{10}$ . You want each fraction to have the same denominator so $\frac{9}{16} * \frac{10}{10}$ and $\frac{1}{10} * \frac{16}{16}$ . This results in $\frac{90}{160} - \frac{16}{160} = \frac{74}{160} = \frac{37}{80}$ . 37 is a prime number so you can't reduce any further.

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which function has an inverse that is a function? a. b(x) = x2 3 b. d(x) = –9 c. m(x) = –7x d. p(x) = |x|

andrew11 [14]

<span>m(x) = –7x has an inverse which is a function.</span>

3 0

3 years ago

Amy had homework for math,science,and history.she spent 1/3 of her time working on math and 1/4 of her time working on science.

Alja [10]

First we need to multiply to make the fractions have equal denominators so we can add/subtract.

math: 1/3 x 4/4=4/12
science: 1/4 x 3/3=3/12

Now we can find the time she spent on history (I assume this is what you are looking for)

Total time-math time<span>-science time=history time</span>
12/12-4/12-3/12
=5/12

Amy spent 5/12 of her time working on history.

8 0

3 years ago

Read 2 more answers

The graph of y=f(x) is shown below. What are all of the read solutions of f(x) = 0?

Sveta_85 [38]

Answer:

0, -1, -3

Step-by-step explanation:

f(x) = y = height of the line plotted

if you treat the x axis as the "ground" or "floor"....you're looking for the point when the graph "hits" the "floor", meaning zero height.

3 0

3 years ago

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If cos B is 4/5 what is sin a?

Keith_Richards [23]

Answer:

sin(A+B)=sinAcosB+cosAsinB. Putting the values in. sin(A+B)=(4/5)(−3/5)+(3/5)(−4/5). sin(A+B)=−24/25.

8 0

3 years ago

I’m confused?????????

QveST [7]

Answer:

The equation of the line is y - 3 = 2.5(x - 2) ⇒ D

Step-by-step explanation:

The rule of the slope of a line is m = $\frac{y2-y1}{x2-x1}$ , where

(x1, y1) and (x2, y2) are two points on the line

The point-slope form of a line is y - y1 = m(x - x1), where

(x1, y1) is a point on the line

From the given figure

∵ The line passes through points (2, 3) and (0, -2)

∴ x1 = 2 and y1 = 3

∴ x2 = 0 and y2 = -2

→ Substitute them in the rule of the slope to find it

∵ m = $\frac{-2-3}{0-2}=\frac{-5}{-2}=2.5$

∴ m = 2.5

→ Substitute the values of m, x1, y1 in the form of the equation above

∵ m = 2.5, x1 = 2, y1 = 3

∵ y - 3 = 2.5(x - 2)

∴ The equation of the line is y - 3 = 2.5(x - 2)

6 0

3 years ago