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lara31 [8.8K]
3 years ago
13

A car is traveling at a speed of 66 miles per hour. What is the car's speed in miles per minute? How many miles will the car tra

vel in 10 minutes? Do not round your answers.
Mathematics
1 answer:
zloy xaker [14]3 years ago
4 0
1 hour = 60 minutes

66 miles / 60 minutes = 1.1 miles per minute

1.1 miles per minute x 10 minutes = 11 miles

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What is the value of c in the equation y = 4x^2 -10x + c if the y-coordinate of the vertex is -7
love history [14]

Answer: c=-\frac{3}{4}

Step-by-step explanation:

Find the x-coordinate of the vertex with this formula:

x=\frac{-b}{2a}

In this case:

a=4\\b=-10

Substituting values, we get:

x=\frac{-(-10)}{2(4)}=\frac{5}{4}

Now we can substitute the coordinates of the vertex into the equation y = 4x^2 -10x + c and then solve for "c".

Then:

-7 = 4(\frac{5}{4})^2 -10(\frac{5}{4}) + c\\\\-7+\frac{25}{4}=c\\\\c=-\frac{3}{4}

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3 years ago
How to graph an exponential function
irina1246 [14]

Step-by-step explanation:

Exponential function is given by general form y=ab^x

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say a=1 and b=2 then we can write function as :

y=1*2^x

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To graph this or any exponential function, we just need to find some points then join them by a curved line.

Like plug x=0, 1, 2,... into above function and find points:

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Find more points similarly then graph them to get the graph as shown below:


7 0
4 years ago
Find the area of the triangle.
KengaRu [80]

Answer:

10 Square feet or square meter

Step-by-step explanation:

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b represents the base which is 4

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7 0
2 years ago
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LekaFEV [45]

Answer:

(-2,-110)

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y = -110

4 0
4 years ago
Rhian sat a math test and an english test.In the maths test she scored 14 out of 17.In the english test she scored 31 out of 39.
Dvinal [7]

Answer:

The maths test

Step-by-step explanation:

If you convert both of the results to percentage,

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English:

\frac{31}{39}  \times 100 = 79\%

You'll see that she scored better in the maths test.

4 0
3 years ago
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