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4 years ago

What shape goes to the correct formula? What shape matches up to A= S to the 2nd Power?

Mathematics

1 answer:

Savatey [412]4 years ago

4 0

Answer:

square

Step-by-step explanation:

if each side of the square is length s, then the area is s x s = s²

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Which expressions are equivalent to 42-5? Choose all the correct answers. Show your work in arriving at your answers.

frozen [14]

Answer:

B, C, E

Step-by-step explanation:

Exponent Rules

$a^b \cdot a^c=a^{b+c}$

$\dfrac{a^b}{a^c}=a^{b-c}$

$a^n \cdot b^n=(ab)^n$

$a^0=1$

$\dfrac{1}{a^b}=a^{-b}$

$(a^b)^c=a^{bc}$

$\textsf{A}\quad42^{-3} \cdot 42^8=42^{-3+8}=42^5$

$\textsf{B}\quad \dfrac{42^{-7}}{42^{-2}}=42^{-7-(-2)}=42^{-5}$

$\textsf{C}\quad \dfrac{6^{-5}}{7^5}=6^{-5} \cdot 7^{-5}=(6 \cdot 7)^{-5}=42^{-5}$

$\textsf{D}\quad 42^0 \cdot 42^5=1 \cdot 42^5=42^5$

$\textsf{E}\quad \left(\dfrac{1}{42^{-5}}\right)^{-1}=(42^5)^{-1}=42^{-5}$

$\textsf{F}\quad \left(\dfrac{6^{-5}}{7^5}\right)^{-1}=\left(6^{-5} \cdot 7^{-5}\right)^{-1}=\left(\left(6 \cdot 7\right)^{-5}\right)^{-1}=42^{-5(-1)}=42^5$

3 0

2 years ago

Read 2 more answers

HELP ASAP: What is the measure of angle A in the triangle? Enter your answer in the box

kondaur [170]

Answer:

Step-by-step explanation:

The sum of all the angles in a triangle is always, always, 180 degrees.

Just add the angles, then solve for x.

(2x - 10) + (x + 30) + 70 = 180

3x + 20 + 70 = 180

3x + 90 = 180

3x = 90

x = 30

6 0

4 years ago

Read 2 more answers

What is the factor of 6x-7x+2

bixtya [17]

Answer: (2x+1) (3x+2)

Step-by-step explanation:

7 0

3 years ago

Josh paid for three books with two $20 bill .He received $1in change each book was the same price .How much did each book cost ?

elena-14-01-66 [18.8K]

The total payment is:
P = 2 * ($ 20) = $ 40
The change is:
C = 1 $
The total cost is then:
CT = P-C = 40 $ -1 $ = 39 $
"each book was the same price":
Book price = ($ 39/3) = $ 13
Answer:
each book cost:
Book price = 13 $

6 0

4 years ago

Question 5 of 5

makvit [3.9K]

Answer:what happened to c and a

Step-by-step explanation:

4 0

3 years ago