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3 years ago

Find the difference.

Mathematics

2 answers:

sukhopar [10]3 years ago

6 0

Answer:

-2x-4

Step-by-step explanation:

(-7x-7y-4)-(-5x-7y)=-7x-7y-4+5x+7y=-7x-4+5x=-2x-4

adoni [48]3 years ago

6 0

Answer:

-2x - 4

Step-by-step explanation:

(- 7x - 7y - 4) - (-5x - 7y) Remove both sets of brackets
-7x - 7y - 4 + 5x + 7y Notice the sign change in 6x and 7y Two minus signs multiplied together make a plus. Gather like terms.
-7x + 5x - 7y + 7y - 4 Simplify
-2x - 4 Note the ys cancel out.

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Find the circumference of a circle whose area is 247 ft2.

gizmo_the_mogwai [7]

Answer:

B is the answer

Step-by-step explanation:

A = πr²

24π = πr²

24 = r²

$\sqrt{24}$ = r

r = $\sqrt{4}$ $\sqrt{6}$ = 2 $\sqrt{6}$

C = 2πr

C = 2π(2 $\sqrt{6}$ )

C = 4 $\sqrt{6}$ π

8 0

2 years ago

Answer pleaseeeeeeeeeee

kondaur [170]

Answer:

B. $10 bag, $0.80 per pound

Step-by-step explanation:

10 / 8 = 0.80

25 / 15 = 1.67

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7 0

2 years ago

Read 2 more answers

Simplify the expression. -2/3c -9/5 + 14c + 3/10

Andrew [12]

Answer:

$13 \frac{1}{3} c - 1 \frac{1}{2}$

Step-by-step explanation:

We want to combine alike terms so

-2/3c+14c & -9/5+3/10

14c-2/3

$\frac{14}{1} c - \frac{2}{3} c$

Multiply 14/1 by 3/3 to get the denominators the same

$\frac{42}{3} c - \frac{2}{3} c$

Subtract

$\frac{40}{3} c$

simplify

$13 \frac{1}{3} c$

now

$\frac{3}{10} - \frac{9}{5}$

Multiply 9/5 by 2/2

$\frac{3}{10} - \frac{ 18}{10}$

Subtract

$- \frac{15}{10}$

Simplify

$- 1 \frac{1}{2}$

put both together

$13 \frac{1}{3}c - 1 \frac{1}{2}$

Hope this helps! If you have any questions on how I got my answer feel free to ask. Stay safe!

5 0

2 years ago

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Multiply and simplify: -3ab^3 • (-4a^4b^5)

grandymaker [24]

$-3ab^3 * (-4a^4b^5)=\\(-3)(-4)(a^{1+4})(b^{3+5})=\\12a^5b^{8}$

4 0

3 years ago

A pediatricians office tracks the age (in months) in which 25 babies begin to walk. Use the dot plot at the right to answer the

OLEGan [10]

Answer:

A pediatricians office tracks the age (in months) in which 25 babies begin to walk

3 0

2 years ago

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