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Simora [160]
3 years ago
11

SOMEONE PLEASE HELP ME i really need this one

Mathematics
1 answer:
jek_recluse [69]3 years ago
8 0

Answer:

Wait are u trying to find the area of a shape???

Step-by-step explanation:

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Solve for the following inequality: -7x - 15 <20
gregori [183]

Answer:

x>-5/7

Step-by-step explanation:

Because our dividing 5 by a negative 7 the symbol flips

3 0
3 years ago
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Pls help me answer this question and plsss do not send link
Sever21 [200]

Answer:

x=124.75

Step-by-step explanation:

Sum of angles of a triangle=180°

(x-40)+(x-20)+(1/2- 10)=180°

(x-40)+(x-20)+(−9.5)=180°

x-40+x-20−9.5=180°

x+x-40-20-9.5=180°

2x−69.5=180°

2x=180°+69.5

2x=249.5

2x/2=249.5/2

x=124.75

3 0
2 years ago
What is the equation for a parabola with a focus of (0,-4) and a directrix of y=4 if the vertex is at the origin?..1)..y=1/16x2.
OlgaM077 [116]

Answer:

y = - \frac{1}{16} x²

Step-by-step explanation:

Since the vertex is at the origin and the focus at (0, - 4) then the parabola opens vertically down with equation

x² = 4py ( p is the distance from the vertex to the focus )

Here p = - 4 ( focus is below the vertex ), thus

x² = 4(- 4)y = - 16y ( divide both sides by - 16 )

y = - \frac{1}{16} x²

3 0
3 years ago
K-25=50<br> Help again i have a quiz that im doing
den301095 [7]
K = 75

75-25=50

Hope this helps!
8 0
3 years ago
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Solve the exponential equation. 8x = 1/4 -2 -2/3 2/3
Karolina [17]

Answer:

\large\boxed{x=-\dfrac{2}{3}}

Step-by-step explanation:

8^x=\dfrac{1}{4}\\==============\\\\8=2^3\\\\\dfrac{1}{4}=\dfrac{1}{2^2}=2^{-2}\\\\===============\\\\(2^3)^x=2^{-2}\qquad\text{use}\ (a^n)^m=a^{nm}\\\\2^{3x}=2^{-2}\iff3x=-2\qquad\text{divide both sides by 3}\\\\x=-\dfrac{2}{3}

5 0
2 years ago
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