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3 years ago

7

Which is equivalent to

2 answers:

Kitty [74]3 years ago

8 0

Answer:

2^2 your welcome

Step-by-step explanation:

polet [3.4K]3 years ago

6 0

Answer:

C. $2^{2}$

Step-by-step explanation:

$2^{7} =$ 2 × 2 × 2 × 2 × 2 × 2 × 2 = 128
$2^{5} =$ 2 × 2 × 2 × 2 × 2 = 32
Re-write the expression with our new answers: $\frac{128}{32}$
128 ÷ 32 = 4
Which one of the options is equivalent to 4? A isn't because $1^{2}$ is equivalent to 1, not 4. B isn't because $1^{12}$ is equivalent to 1, not 4. C is because $2^{2}$ is equivalent to 2 × 2, which is 4.

I hope this helps!

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A number is randomly selected from {15, 16, 17, 18, 19, 20}. A is represented by the event that the number picked is less than o

il63 [147K]

There are total 6 numbers

less than or equal to 16 are 2 numbers

so probability of event A is 2/6 or 1/3 if simplified

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4 years ago

A population of insects grows exponentially, as shown in the table. Suppose the increase in population continues at the same rat

Yuki888 [10]

A population of insects grows exponentially, as shown in the table. Suppose the increase in population continues at the same rate.

from the given table

when x=0 , y=20

when x= 1 , y = 30

We use this information to find exponential growth equation

General form of exponential growth is

$y=a(b)^x$

WE plug in the given values and find out value of a and b

when x=0 , y=20

$20=a(b)^0$

20 = a

Now we find out b

when x= 1 , y = 30

$30=20(b)^1$

divide both sides by 20

$\frac{3}{2} = b$

So exponential function becomes

$y=20(\frac{3}{2})^x$

Now we find the insect population at the end of week 11

We plug in 11 for x

$y=20(\frac{3}{2})^x$

$y=20(\frac{3}{2})^11= 1729.951171875$

Round the answer to nearest whole number

1730 is the insect population at the end of week 11

5 0

4 years ago

Are the equations m + 3 = -5 and m = -2 equivalent? Explain why or why not?

patriot [66]

Answer:

Step-by-step explanation:

When m+3=-5, collection of like terms says; -5-3

Now,-5+-3 = -8 and -2≠-8 hence,they aren't equivalent

7 0

3 years ago

I need more help thank

Soloha48 [4]

Answer:

B. 24

Step-by-step explanation:

Since both triangles are similar, therefore,

GM/XD = AG/KX

(x - 2)/6 = (x + 9)/9

Cross multiply

9(x - 2) = 6(x + 9)

9x - 18 = 6x + 54

Collect like terms

9x - 6x = 18 + 54

3x = 72

Divide both sides by 3

x = 72/3

x = 24

4 0

3 years ago

How many liters of water must Sharon add to 2 liters of a sugar and water solution that is 36% sugar to create a solution that i

Dahasolnce [82]

The amount of sugar $x$ in the starting solution contributes to a 36% concentration, so we have

$\dfrac x2=0.36\implies x=0.64$

units of sugar in the solution.

Into this solution, Sharon wants to pour $y$ liters of water to obtain a smaller concentration of sugar in the overall solution:

$\dfrac{0.64}{2+y}=0.12\implies\dfrac{16}3=2+y\implies y=\dfrac{10}3\approx3.33$

So Sharon needs to add $\dfrac{10}3$ liters of water to the solution to get the desired concentration.

3 0

3 years ago