All categories

4 years ago

7 + 8(3² -2) PLEASE SHOW ALL THE STEPS!

Mathematics

1 answer:

IrinaK [193]4 years ago

4 0

Answer

105

Step-by-step explanation:

first bring 3 to the second power and get 9

then you have 7+8(9-2)

then add 7+8 and get 15

then you have 15(9-2)

then subtract 9-2 and get 7

then you have 15(7)

then times them and get 105

You might be interested in

Determine mode and median

saveliy_v [14]

Mode is the total average median is the middle number

7 0

3 years ago

Read 2 more answers

Which value must be added to the expression x2 – 3x to make it a perfect-square trinomial?

Vitek1552 [10]

Answer:

$\frac{9}{4}$

Step-by-step explanation:

Given

x² - 3x

To make the expression a perfect square

add ( half the coefficient of the x- term )²

x² + 2( - $\frac{3}{2}$ )x + $\frac{9}{4}$ , thus

x² - 3x + $\frac{9}{4}$

= (x - $\frac{3}{2}$ )² ← a perfect square

7 0

3 years ago

2% percent of the stude

stepan [7]

14 would be how many kids have red hair

5 0

3 years ago

Read 2 more answers

Need help <br> Please<br> Thank u

Volgvan

Answer:

i think its b

Step-by-step explanation:

4 0

3 years ago

Item 8 factor −5 out of −10a−25.

egoroff_w [7]

To factor a number out of an expression means to divide each term of the expression by that number.

So, if you want to factor $a$ from the expression $x+y+z$ , you'll write it as

$a\left(\dfrac{x}{a}+\dfrac{y}{a}+\dfrac{z}{a}\right)$

So, in your case, when you divide both terms by -5 you get

$-10a \div (-5) = 2a,\quad -25\div (-5) = 5$

So, the expression becomes

$-10a-25 = -5(2a+5)$

5 0

3 years ago