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Alexeev081 [22]
4 years ago
15

Please help I don't know what to do

Mathematics
1 answer:
Vaselesa [24]4 years ago
6 0
The parabola has 2 x intercepts, so quadratic equations has 2 real roots (-6), and 3
we can write  (x+6)(x-3)=0  , x²+6x-3x-18=0,  y=x²+3x-18 
check y int =-18 on the graph
y=1x²+3x-18 
   

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A rug is 3 feet longer than 5 times the width. The area of the rug is 92 square feet. What are the dimensions of the rug?
Rzqust [24]

Answer:

36

Step-by-step explanation:

L=W+5

Area=LW

36=(W+5)W

36=W^2+5W

W^2+5W-36=0

(W+9)(W-4)=0

W-4=0

W=4 ANS. FOR THE WIDTH.

L=4+5=9 ANS. FOR THE LENGTH.

PROOF:

36=9*4

36=36

I hope this helped! ;)

4 0
3 years ago
Read 2 more answers
Find the 12th term<br> 1,4, 16, 64,<br> ...
IgorC [24]

Step-by-step explanation:

for getting to next term you multiple 4, so it's an exponential sequence

a×r^n-1

1×4^n-1

sequence: 4^n-1

12th term: 4^12-1

=4^11

=4194304

hope it helps!!

5 0
3 years ago
Write this in a variable expression: feet in y yards
sasho [114]

We know that; 1 foot = 2/3 yards and 1 yard = 3 feet

Since we are trying to find how many "yards", we can write the equation like this:

y = f/3

f = foot

Best of Luck!

3 0
3 years ago
What is the area of one trapezoidal face of the figure?
Arturiano [62]
The area of a trapezoid, A, is the average of the lengths of the bases (B and b) multiplied by the height, h.

A = \dfrac{(B + b)h}{2}

A = \dfrac{(3~in. + 1~in.) \times 1~in.}{2}

A = \dfrac{4~in. \times 1~in.}{2}

A = \dfrac{4~in.^2}{2}

A = 2~in.^2
3 0
4 years ago
1. What is the degree form for 4π/9
nikklg [1K]
the answer should be about 80 degrees
8 0
4 years ago
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