All categories

2 years ago

Which expression is equivalent to 13 - (-21)?

Mathematics

1 answer:

dedylja [7]2 years ago

6 0

Answer is 13+21 , two negatives make a positive as a result the answer is A

You might be interested in

If EG=67, then EF=?<br> There is a picture below

ikadub [295]

If EG=67 we have (3x+7)+(5x-4)=67
let's simplify
$67 = (3x + 7) + (5x - 4) \\ 67 = 8x + 3 \\ 64 = 8x \\ \frac{64}{8} = x \\ 8 = x$
now we know x is 8 we can use this to find EF
since EF=3x+7
$3(8) + 7 = 24 + 7 = 31$
so we have EF is 31!
if.you like my answer please rate Brainliest

3 0

2 years ago

Read 2 more answers

1. Write the linear equation 2x – 3y = 24 slope-intercept form.

mel-nik [20]

Answer:

y=2/3x-8

Step-by-step explanation:

2x-3y=24

3y=2x-24

y=2/3x-24/3

y=2/3x-8

y=mx+b where m=slope and b=y-intercept.

3 0

1 year ago

What is the remainder of (x^3-6x^2-9x+3)/(x-3)

marta [7]

Thw answer is -51
Found through long division

7 0

3 years ago

What does this mean-Solve 3!

alisha [4.7K]

Answer:

solve 3 bro duh

Step-by-step explanation:

8 0

2 years ago

Please solve all with explanation

garri49 [273]

Answer:

1. $\frac{x^2}{y^8}$

2 a) $\frac{-49}{2}$

b) 0

3. x = 10

Step-by-step explanation:

$(\frac{x^{-3}y^4}{x^{-2}})^{-2}\\({x^{-3+2}y^4})^{-2}\\({x^{-1}y^4})^{-2}({x^{-1*-2}y^{4*-2})= \frac{x^2}{y^8}$

2. a)

$2 [(\frac{-1}{4}) -12 (-1)^2] - 5[24 +2 (-12)]^2\\2[(\frac{-1}{4}) -12] - 5[24 -24]^2\\2 * [(\frac{-1}{4}) -12] -0\\\frac{-49}{2}$

$-a^2b^2 - 3a^3b^2\\-\frac{1}{9}*1 - 3 * \frac{-1}{27} *1\\-\frac{1}{9} + \frac{1}{9}\\0$

$\frac{3}{4}x + \frac{5}{6} = 5x -\frac{125}{3} \\\frac{5}{6} + \frac{125}{3} = 5x - \frac{3}{4}x\\\frac{5+250}{6} = \frac{20x -3x}{4}\\\frac{255}{6} = \frac{17x}{4}\\x = 10$

7 0

2 years ago