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aev [14]
3 years ago
7

Can anybody help me with this

Mathematics
1 answer:
maksim [4K]3 years ago
3 0

Answer:

$7.05

Step-by-step explanation:

since 7 planes are $16.45 just divide 16.45 by 7

the answer is 2.35 so do 2.35 times 3 which equals $7.05

p.s. please give brainliest

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The weights of adult men are approximately normally distributed with a mean of 190 pounds and a standard deviation of 30 poinds.
Dafna1 [17]

Answer:

that would be roughly 38 pounds

Step-by-step explanation:


4 0
4 years ago
Mrs. Kemp began the school year with 20 students in her kindergarten class. She had 23 students at the end of the year. What was
Liula [17]
First, we’re going to use this formula:

2nd number - 1st number
————————————— x 100%
1st number


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23-20
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And subtract 23 to 20, the answer to this equation is:

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In this case, the percent of increase is 15%.
3 0
3 years ago
At a birthday party pizzas and sodas were purchased for the kids. The number of sodas bought was two more than three times the n
ohaa [14]

Answer:

61

Step-by-step explanation:

Givens

Let the pizzas = x

Let the sodas = y

Equation

y = 3x + 2

<u>Part A</u>

y = 3*8 + 2

y = 24 + 2

y = 26

<u>Part B</u>

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Pizzas =9.50 * 3  = 28.50

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5 0
3 years ago
Please help! functions operations. explain please
Lina20 [59]

Answer:

f^{-1}(x)=x^2-3

Step-by-step explanation:

Given f(x)=\sqrt{x+3}

Let y=\sqrt{x+3}

Interchange x and y

x=\sqrt{y+3}

Solve for y, by first squaring both sides

x^2=y+3

x^2-3=y

Hence

f^{-1}(x)=x^2-3

The last choice is correct

5 0
3 years ago
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Bas_tet [7]

Answer:

y-intercept (0,1)

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Step-by-step explanation:

If a table represents an exponential function of the form  y=b^x, then the y-value that corresponds to x=0 is 1.

In other words, the y-intercept (0,1) must be present in the table.

Also the ratio of a subsequent y-value to the previous y-value should give a value of b.

In other words the multiplicative rate of change from the table must be equal to b.

6 0
3 years ago
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