3 years ago

(3x^2 + 4x -7) - (x^2 - 2x + 6)

Mathematics

1 answer:

marshall27 [118]3 years ago

8 0

(9x^2 +4x -7) - x^2 +2x - 6
8x^2 +6x - 13.

Get a grip on your life son. This is really simple.

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Rhonda is drawing a 3-inch square inside an isosceles triangle with two side lengths measuring 7 inches and 14 inches. Which of

Aleksandr-060686 [28]

Answer:

Step-by-step explanation:

I just need to type more or my answer gets auto delete but yeah it is 7

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3 years ago

Convert the angle 0=228 degrees to radians

miv72 [106K]

Answer:

$\dfrac{19}{15}\,\text{radians}=1.2\overline{6}\,\text{radians}$

Step-by-step explanation:

θ = 228° = (228°)×(π/180° radians/degree) = 228/180 radians

= 19/15 radians

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3 years ago

The shorter leg of a right triangle is 14 feet less than the other leg. Find the length of the two legs of the hypotenuse is 25

irakobra [83]

Answer:

9.233 ft, 23.233 ft

Step-by-step explanation:

If the shorter leg is x, then the longer leg is x+14 and the Pythagorean theorem tells you ...

x^2 + (x +14)^2 = 25^2

2x^2 +28x +196 = 625

x^2 +14x = 214.5

x^2 +14x +49 = 263.5

(x +7)^2 = 263.5

x = -7 +√263.5 ≈ 9.23268

The two leg lengths are √263.5 ± 7 feet, {9.23 ft, 23.23 ft}.

6 0

3 years ago

Read 2 more answers

Solve for x.38(2x+16)−2=13 Enter your answer in the box.x =

lys-0071 [83]

Given:

$\frac{3}{8}(2x+16)-2=13$ $\frac{3}{8}(2x+16)=13+2$ $\frac{3}{8}(2x+16)=15$ $(2x+16)=15\times\frac{8}{3}$ $(2x+16)=40$ $2x=40-16$ $2x=24$ $x=\frac{24}{2}$ $x=12$

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1 year ago

QUESTION ATTACHED PLZ HELP NEEDED

saw5 [17]

Y = a (x + 3)² - 1

Let's take the point (-1;3)

3 = a ( -1 + 3)² - 1
3 = 4a - 1
4a = 4

Therefore a = 4/4 = 1

(x+3)² - 1
= x² + 6x + 9 - 1
= x² + 6x + 8

The answer would be y = x² + 6x + 8.

Hope this helps !

Photon

4 0

3 years ago