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balandron [24]
2 years ago
9

2x^2 + 4x +7 quadratic formula

Mathematics
1 answer:
marissa [1.9K]2 years ago
7 0

Answer:

Step-by-step explanation:

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Factor completely 2x3 + 14x2 + 4x + 28.
Oxana [17]
6 + 28 + 4x +28

34 +28 + 4x

62 + 4x?

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3 0
3 years ago
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Solve for x: 2x/5=12/8
Anika [276]

Answer:

x = 3\frac{3}{4}

Step-by-step explanation:

First, you have to leave 2x by itself on the left side of the equation:

2x = 60/8

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x = 15/4

Simplified fraction: x = 3\frac{3}{4}

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Find the 12th term of the sequence -15,-9,-3, 3
Reika [66]
First term (a) = -15
common difference(d)= -9-(-15)
= -9+15=6
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4 0
3 years ago
ILL GIVE BRAINELST
murzikaleks [220]

Answer:

A = 12 ft

Step-by-step explanation:

Perimeter ( of SQUARE) B = 64

  then each side = 64/4 = 16

AREA of SQUARE C = 400

    side X side = 400

        then side = sqrt 400

Now use Pyhtagorean Theorem to find leg of right triangle that is

   side A  Side B  hypotenuse Side C

A^2 + 16^2 = (sqrt 400)^2

A^2 = 400 - 256

A^2 = 144       then A = 12  Ft

6 0
2 years ago
Please help me I’m super confused on this problem!
Lorico [155]

Answer:

m < amc = 54°

Step-by-step explanation:

< amb and < bmc are complementary angles whose sum equals 90°.

Therefore, to find the value of 2x°, we must first solve for x.

We can establish the following equality statement:

< amb + < bmc = < amc

< 2x° + (x + 9)° = 90°

Combine like terms:

2x° + x° + 9° = 90°

3x° + 9° = 90°

Subtract 9 from both sides:

3x° + 9° - 9° = 90° - 9°

3x = 81°

Divide both sides by 3 to solve for x:

3x/3 = 81°/3

x = 27°.

Since x = 27°, substitute its value into 2x° to find m < amc:

2x° = 2(27°) = 54°

Therefore, m < amc = 54°

Please mark my answers as the Brainliest, if you find this helpful :)

5 0
3 years ago
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