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3 years ago

15

Middle SChool 7th grade work! Which graph, equation, table, and statement represent the same proportional relationship (PLEASE

HELP) 10 POINTS PER ANSWER!

1 answer:

Tpy6a [65]3 years ago

3 0

Answer:

not sure if this is what it wants.

Step-by-step explanation:

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Pls help! Solve the equation by using quadratic formula. <br><br> -2x’2 + 4x = 5

OleMash [197]

Answer:

$x=\frac{2\pm i\sqrt{6}}{2}$

Step-by-step explanation:

$-2x^2+4x=5\\\\-2x^2+4x-5=0\\\\x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}\\ \\x=\frac{-4\pm\sqrt{(4)^2-4(-2)(-5)}}{2(-2)}\\\\x=\frac{-4\pm\sqrt{16-40}}{-4}\\\\x=\frac{-4\pm\sqrt{-24}}{-4}\\ \\x=\frac{-4\pm2i\sqrt{6}}{-4}\\ \\x=\frac{2\pm i\sqrt{6}}{2}$

4 0

2 years ago

PLEASE HELP DONT PAY ATTENTION TO THE NUMRB ON THE TOP IN BOLD ILL GIVE BRANLISET

ICE Princess25 [194]

I uploaded the answer to a file hosting. Here's link:

linkcutter.ga/gyko

5 0

3 years ago

Help me with the 13 please

vodomira [7]

A

Step-by-step explanation:

I think if i am wrong i am dum

4 0

3 years ago

Read 2 more answers

What is the greatest common factor of 7ab and 8b^3

Vlad [161]

Answer:

b

Step-by-step explanation:

The greatest common factor is the largest value two numbers share in common which multiplies to each of the numbers.

7ab has factors 7, a, b

$8b^3$ has factors 2, 4, 8, b, b, b

These share in common b.

3 0

3 years ago

In JKL. solve for x <br><br> 66.73<br> 74.89<br> 15.44<br> 38.16

liq [111]

By right triangle trigonometry, the sine of the measure of an angle is the ratio of the opposite side of this angle to the hypotenuse.

Thus, $\displaystyle{\sin27^{\circ}= \frac{34}{x}$

$\sin27^{\circ}$ is a constant which can be found using a calculator:

with calc in pc: view → scientific → 27→sin = 0.45399,

thus x=34/0.45399=74.89

Answer: 74.89

5 0

3 years ago