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Makovka662 [10]

4 years ago

8

WILL AWARD BRAINLIEST!!! there are 4 questions.

1 answer:

Karolina [17]4 years ago

6 0

D
A
B
B
These are the correct answers

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A school is buying 35 new computers. If the price of each computer is $1,099,

dolphi86 [110]

Answer:

$38,465

Step-by-step explanation:

35 x 1,099 = 38,465

6 0

3 years ago

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Suppose a plant grew 4 1/2 inches one week and 2 3/8 inches the next week. How many inches did it grow during both weeks?

jolli1 [7]

7 inches if you round up for the fractions

8 0

3 years ago

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joja [24]

Answer:

x>13

Step-by-step explanation:

4 0

3 years ago

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The sale price for a computer is $450. the original price was first discounted by 25% and then was discounted an additional 20%.

pishuonlain [190]

Sale price = $450
original price = 25%y
dicount = +20%

solution = $450 × 45%
= $202.5
= $652.5

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3 0

3 years ago

The inverse variation equation shows the relationship between wavelength in meters, x, and frequency, y

Cerrena [4.2K]

We have been given that the inverse variation $y=\frac{3\times 10^8}{x}$ shows the relationship between wavelength in meters, x, and frequency, y. We are asked to find the wavelength for radio waves with frequency $3\times 10^9$ .

To find the required wavelength, we substitute $y=3\times 10^9$ in our given equation and solve for x as:

$3\times 10^9=\frac{3\times 10^8}{x}$

$x=\frac{3\times 10^8}{3\times 10^9}$

We can see that both numerator and denominator has 3, so we can cancel it out.

$x=\frac{1\times 10^8}{1\times 10^9}$

Using quotient rule of exponents $\frac{a^m}{a^n}=a^{m-n}$ , we will get:

$x=1\times 10^{8-9}$

$x=1\times 10^{-1}$

Therefore, the wavelength for radio waves would be $1\times 10^{-1}$ meters and option B is the correct choice.

3 0

4 years ago

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