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3 years ago

15 POINTS

Mathematics

2 answers:

mafiozo [28]3 years ago

7 0

B i would say I'm sure

natita [175]3 years ago

7 0

It would be B: 65! i hope all is well, and you do really well on this test! (:

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Perform the indicated operation.(4r/r+3) - (5/r)

Aleks [24]

Answer:

4r² - 5r - 15 / r(r+3)

Step-by-step explanation:

To solve this problem, we will proceed the following way, writing down the common multiple of the denominators.

$\frac{4r}{r+3} -\frac{5}{r} =\frac{4r(r)-5(r+3)}{r(r+3)} =\frac{4r^{2}-5r-15 }{r(r+3)}$

Thus, the answer is 4r² - 5r - 15 / r(r+3)

7 0

3 years ago

. Express 3/7 as a rational number with denominator 91.<br>(1 Point)<br>

grin007 [14]

Answer:

$\frac{39}{91}$

Step-by-step explanation:

Given

$\frac{3}{7}$

To express as a rational number with 91 on the denominator.

91 ÷ 7 = 13

Thus multiply the numerator and denominator by 13, that is

$\frac{3(13)}{7(13)}$ = $\frac{39}{91}$

7 0

3 years ago

Write the equation of a circle with center (7.0) with radius 3.

harina [27]

Answer:

2.3

Step-by-step explanation:

so the 7.0 gets dived by the 3 because the radius is half of the circle.

5 0

3 years ago

Read 2 more answers

What is the answer ti 3\4 × g = 5/8

gladu [14]

For this case we have the following expression:

$\frac {3} {4} g = \frac {5} {8}$

We clear the value of the variable "g", for this:

We multiply by 4 on both sides of the equation:

$4 * \frac {3} {4} g = \frac {5} {8} * 4\\3g = \frac {20} {8}$

We divide by 3 on both sides of the equation:

$\frac {3g} {3} = \frac {20} {8 * 3}\\g = \frac {20} {24}$

We simplify:

$g = \frac {10} {12} = \frac {5} {6}$

Answer:

$g = \frac {5} {6}$

4 0

3 years ago

What's the answer to this

larisa86 [58]

The answer is, y=-1x+9

4 0

3 years ago