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Sindrei [870]
2 years ago
9

Can someone help meeeeeeeeeeeeeeee

Mathematics
2 answers:
nlexa [21]2 years ago
8 0
The answer is D. 13.5 and 20.25
Sergeeva-Olga [200]2 years ago
8 0
I think the answer is C.
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A polygon with all equal side is called?​
disa [49]
The answer would be a equilateral
7 0
3 years ago
What is <br>2x^2+7x-4/x^3 -1
I am Lyosha [343]
Domain is the numbers you can use
you can't use any numbers that make an impossibility like a negative square root or dividing by 0

set the denomenator equal to 0 to find what values of x make it 0
x^3-1=0
add 1 both sides
x^3=1
cube root both sides
x=1
domain is all real numbers except for 1
range is the numbers you get from inputing domaain
there is a vertical assemtote there so all bases are covered
range is how high and low y goes
domain is how far left and right x goes


domain is all real numbers except x=1
range is all real numbers

6 0
3 years ago
Read 2 more answers
What is the value of sinθ given that (−3, 4) is a point on the terminal side of θ ?
Luba_88 [7]

Answer:

sinθ = 4/5

Step-by-step explanation:

The given point is (-3,4). This point lies in the second quadrant.

In second quadrant, sinθ is positive.

Now, please see the attached image.

The point (-3,4) is at A. The hypotenuse OA can be found by using the Pythagorean theorem.

OA=\sqrt{4^2+3^2}\\\\OA=\sqrt{16+9}\\\\OA=\sqrt{25}\\\\OA=5

Now, in triangle AOB,

\sin\theta=\frac{AB}{OA}\\\\\sin\theta=\frac{4}{5}

Thus, we have

sinθ = 4/5

5 0
3 years ago
I need help with this question. i keep having trouble
nignag [31]

Answer:

Step-by-step explanation:

The angles <JKL, <EKL, and <JKE form a full angle which means their sum is equal to 360:

134 + 21x + 6 + 5x = 360 add like terms

140 + 26x = 360 subtract 140 from both sides

26x = 220 divide both sides by 26

x = 8.4 approximately

to find the angle m<JKL replace x with the value we found.

8 0
2 years ago
The system of equations y = –2x + 1 and y = x + 5 is shown on the graph below. Which statement is true about the solution to the
Semenov [28]

Answer:

the answer is a

Step-by-step explanation:

y = -2x +1

y = x + 5

-2x+1=x+5

-3x = 4

x= -4/3

y = -1 1/3 + 5= 3 2/3

8 0
2 years ago
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