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alexandr1967 [171]

2 years ago

9

A map scale indicates that .5 inches represents 13 miles. What is the actual distance of two cities that are measured on the map

to be 4.5 inches apart?
Round your answer to the nearest integer.

1 answer:

Brut [27]2 years ago

3 0

Answer:

9 is the answer, wanna know how?

Step by Step explanation : So you do this and that equals 9.

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How do you do this? Please help!

jeka94

A=((8.9+8.9)/2) * 5.4 = 48.06P= 8.9*2 +6*2 = 28.4

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3 years ago

What is the area of the following circle <br> R=7

In-s [12.5K]

Answer:

153.86

Step-by-step explanation:

7^2 x 3.14

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3 years ago

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A car's odometer starts at 25 miles and for every 25 miles traveled, 1 gallon of gas is used.

frosja888 [35]

Top left graph. Shows every gallon of gas gets 25 miles.

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3 years ago

Write a quadratic function, in standard form, that fits the set of points. Solve it as a system of three equations. (-4, 9), (0,

Tresset [83]

Answer:

$\boxed{y=2x^2+4x-7}$

Step-by-step explanation:

Let the quadratic function be

$y=ax^2+bx+c$

We substitute $(-4,9)$ into the equation to obtain;

$9=a(-4)^2+b(-4)+c$

$\Rightarrow 9=16a-4b+c---(1)$

We substitute $(0,-7)$ to obtain;

$-7=a(0)^2+b(0)^2+c$

$\Rightarrow c=-7---(2)$

We finally substitute $(1,-1)$ to obtain;

$-1=a(1)^2+b(1)^2+c$

$\Rightarrow -1=a+b+c---(3)$

We put equation (2) into equation (1) to get;

$9=16a-4b-7$

$16a-4b=16$

$\Rightarrow 4a-b=4---(4)$

$\Rightarrow -1=a+b-7$

$\Rightarrow a+b=6---(5)$

We add equation (4) and (5) to get;

$4a+a=6+4$

$\Rightarrow 5a=10$

$\Rightarrow a=2$

We put $a=2$ into equation (5) to get;

$2+b=6$

$\Rightarrow b=6-2$

$\Rightarrow b=4$

The reqiured quadratic function is

$y=2x^2+4x-7$

7 0

3 years ago

Write the number 164 in expanded form

Lapatulllka [165]

If you were to write 164 in expanded form, it would be 100 + 60 + 4 = 164
Hope this helps and can I get brainliest answer bc i need it to rank up!! :D

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3 years ago

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