3 years ago

The second one I don’t know it

Mathematics

2 answers:

Whitepunk [10]3 years ago

5 0

The cube root is the same as the 1/3 exponent. In general an exponent of 1/n is an nth root.

Answer: ∛15, last choice

loris [4]3 years ago

3 0

Answer:

The third one $\sqrt[3]{15}$

Step-by-step explanation:

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Furkat [3]

$\huge\bold{\purple{\bold{⚡133°⚡}}}$

Step-by-step explanation:

Co interior angles' sum is 180°

So, 180-67=133
133°

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2 years ago

What is the scale factor?

Fed [463]

Answer:

Step-by-step explanation:

it literally doubles in size

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3 years ago

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8. If BD=BC, BD = 5x -26, BC = 2r + 1, and AC = 43, find AB.

charle [14.2K]

Answer:

Step-by-step explanation:

BD=DC

5x-26=2x+1

5x-2x=1+26

3x=27

x=9

BC=2x+1

=2*9+1

BC =19

so AB=AC-BC

AB=43-19

AB=24

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3 years ago

Your friend tells you that if you let her keep 2020 of your Pokemon cards for three months, she will give you 22 cards extra whe

Dmitrij [34]

Answer: 40 %

Step-by-step explanation:

Let the amount of one card = x

Hence, the value of 20 cards ( Principal amount ) = 20x

And, the value of 22 cards ( Total amount after 3 month ) = 22x

⇒ Total interest in 3 month = 22x - 20x =2x

Let the annual interest rate = r %

$\frac{20x\times r\times 3/12}{100}=2 x$ ( By the formula of simple interest rate )

$\implies \frac{10\times r\times 1/4}{100}=1$

$\implies \frac{10r}{400}=1$

$\implies 10r=400$

$\implies r=40\%$

Hence, the annual rate of interest = 40%

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3 years ago

7ax−7bx−2ay+2by<br> Factor by grouping

mash [69]

Answer:

(7x−2y)(a−b)

Step-by-step explanation:

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3 years ago

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