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valentina_108 [34]

3 years ago

9

A train can travel 1136 miles in 4 hours. What is the unit rate that this train is traveling per hour? _____ miles per hour. Num

erical Answers Expected!

1 answer:

mariarad [96]3 years ago

3 0

284 miles per hour, you would divide 1136 by 4 to get the answer 284 for one hour :)

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Can any one answer this please

Lynna [10]

Answer: 10.6

Step-by-step explanation:

divide the number she spent (2.65) by the amount the store charges per ounce (.25)

2.65/ .25 = 10.6

5 0

3 years ago

Original price of a microscope: $300.00 Tax:2% find the selling price

Natali5045456 [20]

Answer:

$306

Step-by-step explanation:

First you make it into fractions. 1/300 = 2/100

The 2 in the fraction represents the tax rate over 100

The 300 represents the microscope price.

Now multiply the 300 and 2 and 1 and 100

300 x 2 & 1 x 100

600 & 100

Now divide these two

Now you have 6

The 6 is the tax

So now add 300 + 6

$306

5 0

3 years ago

Help please and as soon as possible and thanks

Annette [7]

This is 10.5^2 10.5 is the base and 2 is the exponent. The area is 110.25 square inches.

7 0

4 years ago

Form quadratic functions given the following information:

nignag [31]

Answer:

$f(x)=-\frac{4}{7}(x-\sqrt{2}-3)(x+\sqrt{2}-3)$

or

$f(x)=-\frac{4}{7}(x^2-6x+7)$

Step-by-step explanation:

we have

f(3+√2 )=f(3− √2 )=0

so

x1=3+√2 and x2=3−√2 are the roots or x-intercepts of the quadratic equation

The quadratic equation in factored form is equal to

$f(x)=a(x-x1)(x-x2)$

substitute

$f(x)=a(x-(3+\sqrt{2}))(x-(3-\sqrt{2}))$

Find the value of the coefficient a

Remember that

f(1)=−8

so

For x=-1 -----> f(x)=-8

substitute

$-8=a(-1-(3+\sqrt{2}))(-1-(3-\sqrt{2}))$

solve for a

$-8=a(-4-\sqrt{2}))(-4+\sqrt{2}))$

apply difference of squares

$-8=a(14)$

$a=-\frac{4}{7}$

therefore

$f(x)=-\frac{4}{7}(x-(3+\sqrt{2}))(x-(3-\sqrt{2}))$

$f(x)=-\frac{4}{7}(x-\sqrt{2}-3)(x+\sqrt{2}-3)$

simplify

Applying distributive property

$f(x)=-\frac{4}{7}(x^2+\sqrt{2}x-3x-\sqrt{2}x-2+3\sqrt{2}-3x-3\sqrt{2}+9)$

$f(x)=-\frac{4}{7}(x^2-6x+7)$

5 0

4 years ago

Jonathan measured 2 cups of flour into a bowl on the counter. Then he spilled part of it, and now there is only 3/8 cup left. Ho

sveticcg [70]

He spilled 1 and 5/8 cups because 2-3/8= 1 5/8. To check that, use 1 5/8+ 3/8= 2 cups.

7 0

3 years ago