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2 years ago

I need help please! i dont know!

Mathematics

2 answers:

zvonat [6]2 years ago

7 0

There is 12.5% you can do we it

Kaylis [27]2 years ago

4 0

Answer:

there is a 12.5% increase

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Kathy buys a bicycle after a 30% markdown. The original price was $490.00. What did<br> she pay?

Umnica [9.8K]

Answer:

$343

Step-by-step explanation:

To get 30% of 490 we divide 30% by 1

30% ÷ 1 = 147

Now, we subtract 490 by 147

490 - 147 = 343

4 0

3 years ago

How do you multiple fractions

Diano4ka-milaya [45]

Fractions they are easy REALLY!!

5 0

3 years ago

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I REALLY NEED HELP PLEASE

Ira Lisetskai [31]

I think the answer is letter B

6 0

3 years ago

Write a quadratic function for each graph described.

user100 [1]

Answer:

$y=2x^2-\frac{4}{3}x-\frac{10}{3}$

Step-by-step explanation:

we know that

The roots of the quadratic function (x-intercepts) are

x=-1 and x=5/3

we can write the equation of the parabola as

$y=a(x+1)(x-\frac{5}{3})$

where

a is a coefficient

Remember that

The parabola pass through the point (5,40)

substitute the value of x and the value of y of the ordered pair in the quadratic equation and solve for a

x=5, y=40

$40=a(5+1)(5-\frac{5}{3})$

$40=a(6)(\frac{10}{3})$

$40=20a\\a=2$

substitute

$y=2(x+1)(x-\frac{5}{3})$

apply distributive property

$y=2(x^2-\frac{5}{3}x+x-\frac{5}{3})\\\\y=2(x^2-\frac{2}{3}x-\frac{5}{3})\\\\y=2x^2-\frac{4}{3}x-\frac{10}{3}$

see the attached figure to better understand the problem

6 0

3 years ago

If the temperature is -17° F at 8 am, and 23°F at noon, how much did the temperature rise?

dedylja [7]

17 + 23 = 40

The temperature rose 40 degrees.

3 0

3 years ago

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