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3 years ago

WHAT IS 2x^2 - 70 = 4x ?!? this is for solving quadratic equations by factoring ! i don't understand it : (

Mathematics

2 answers:

Alekssandra [29.7K]3 years ago

8 0

Answer: ☁️ x = 7,-5. ☁️

Hope it helps.

Explanation: Have a nice day!~ ￣▽￣❤️

telo118 [61]3 years ago

4 0

2x^2-4x-70=0
Divide all by 2
x^2-2x-35=0
(x+5)(x-7)=0
x+5=0 x-7=0
x=-5 x=7

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The slope of the line that passes through the points (3,14) and (7,9) is

Akimi4 [234]

Answer:

m = -1.25

Step-by-step explanation:

Slope = (Y2-Y1) = (9-14) = (-5) = -1.25

(X2-X1) (7-3) (4)

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3 years ago

the pentagon in washington dc is immense in size, with each outside wall 921 feet in lenght. what is the perimeter of the pentag

KATRIN_1 [288]

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3 years ago

(2,1),(-3,1) how do you solve this I’m looking for the slope I also have to show work

shutvik [7]

Answer: 0

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To find the slope, you would need to use the formula $m=\frac{y_2-y_1}{x_2-x_1}$ .

$m=\frac{1-1}{-3-2} =\frac{0}{-5} =0$

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3 years ago

Pat bought a new anchor for her boat. She needed to buy rope for the anchor At the

defon

Answer:

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3 years ago

Can someone help me with this ?

romanna [79]

Answer:

$\large\boxed{S.A.=467\ in^2}$

Step-by-step explanation:

We have two triangles and three rectangles.

The formula of an area of a triangle:

$A_{triangle}=\dfrac{bh}{2}$

b - base

h - height

The formula of an area of a rectangle:

$A_{rectangle}=lw$

l - length

w - width

TRIANGLE:

b = 11 in, h = 7 in

$A_1=\dfrac{(11)(7)}{2}=\dfrac{77}{2}=37.5\ in^2$

RECTANGLE 1:

l = 11 in, w = 14 in

$A_2=(11)(14)=154\ in^2$

RECTANGLE 2:

l = 9 in, w = 14 in

$A_3=(9)(14)=126\ in^2$

RECTANGLE 3:

l = 8 in, w = 14 in

$A_4=(8)(14)=112\ in^2$

The Surface Area:

$S.A.=2A_1+A_2+A_3+A_4$

Substitute:

$S.A.=2(37.5)+154+126+112=467\ in^2$

6 0

3 years ago