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Phantasy [73]
4 years ago
7

I NEED HELP ON THIS PLEASE!!

Mathematics
1 answer:
mr_godi [17]4 years ago
5 0

Answer:

a and d

Step-by-step explanation:

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<img src="https://tex.z-dn.net/?f=15%20x%5E%7B2%7D%20%2B14x-49%3D0" id="TexFormula1" title="15 x^{2} +14x-49=0" alt="15 x^{2} +1
Alex777 [14]
15x^2+14x-49=0\\\\&#10;Terms:\\&#10;a=15\ \ \ \ b=14\ \ \ \ c=-49\\&#10;Quadratic\ Formula:\\\\&#10;x=\dfrac{-b\pm\sqrt{b^2-4ac}}{2a}\\\\&#10;x=\dfrac{-14\pm\sqrt{196+2,940}}{30}\\\\&#10;x=\dfrac{-14\pm\sqrt{3,136}}{30}\\\\&#10;x=\dfrac{-14\pm56}{30}

Roots:\\\\&#10;x'=\dfrac{-14+56}{30}\\\\&#10;x'=\dfrac{42}{30}\\\\&#10;x'=\dfrac{21}{15}\\\\&#10;\boxed{x'=\dfrac{7}{5}}\\\\\\\\&#10;x''=\dfrac{-14-56}{30}\\\\&#10;x''=\dfrac{-70}{30}\\\\&#10;\boxed{x''=\dfrac{-7}{3}}
8 0
3 years ago
Read 2 more answers
Write the raito as a fraction simplest from 12 boys and 15 girls​
kiruha [24]

Step-by-step explanation: We can write a ratio using the word "to", using a colon, or using a fraction bar.

Here, since we want our ratio in simplest form,

I would use a fraction bar.

Now, the problem asks us to compare

the number of boys to the number of girls.

We know that there are 12 boys

and we know that there are 15 girls.

So our ratio is 12/15.

However, this can be reduced to 4/5.

3 0
3 years ago
Let's make one thing clear. That thing you see in the mirror is you being garbage.
xenn [34]

Answer:

Nice roast

Step-by-step explanation:

Don’t be mean tho :(

6 0
3 years ago
How do I change 1 1/2 to a proper fraction?
Tanya [424]
2x1=2

2+1=3/2

=3/2 is the answer
8 0
4 years ago
The area of a rectangular painting is 1/6 square yard. The width is 2/3 yard. What is the length of the painting use the formula
STatiana [176]

The length of the painting is 1/4.

According to the statement

we have to find the length of the rectangular painting with the help of the given information.

So, For this purpose, we know that the

The given information is:

The area of a rectangular painting is 1/6 square yard. The width is 2/3 yard.

And we have to use the formula

Area = Length * Breadth

So, Substitute the values in it then solve

So,

Area = Length * Breadth

1/6= Length * 2/3

1/6 = 2L/3

1 = 12L/3

1 = 4L

L = 1/4.

The value of the length is 1/4.

So, The length of the painting is 1/4.

Learn more about area of a rectangle here

brainly.com/question/2607596

#SPJ9

4 0
2 years ago
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