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makkiz [27]
2 years ago
14

Calculate the value of x and give reason.

Mathematics
1 answer:
alex41 [277]2 years ago
6 0

since these two angles are the same, we can write down following equation:

70=x+20

then x = 50

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20*0.85
17
17 are action movies
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3 years ago
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-4(w+1)=-24<br><br> what does w equal?
makvit [3.9K]

Answer:

w=5

Step-by-step explanation:

using the distributive property to simplify the equation

-4(w)+1(-4)=-24 so

-4w-4=-24 (adding 4 to both sides)

-4w==20 (divide by -4)

w=5

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Given the function F(x)=3x+2 f(x)=8 find the following f(x)=8
sergiy2304 [10]
I believe the answer is 26. But I’m new to this I just learned this last week.
7 0
3 years ago
PLEASE SOLVE. FIRST ANSWER WITH EXPLANATION GETS MOST BRAINLIEST AND 10 POINTS. THANKS ;)
Murljashka [212]
Total angle sum will always equal 360 degrees. Due to vertical angles theorem, we know the angles opposite the polynomials also equal the polynomials. So, we can double both of them (like solving for perimeter) and sum them to 360.

Thus, 360 = 2(2x + 10) + 2(x+ 5)

360 = 2(2x + 10 + x + 5)
360 = 2(3x + 15)
180 = 3x + 15
165 = 3x
x = 55
7 1
2 years ago
Find the vertex of the graph of f(x) = x2 + 4x - 5.
Fofino [41]
You can solve this in two ways.

1. Graphical. Plot the graph for x between -5 and 1 (see attachement).
The vertex of the graph is the peak of the curve, which has the coordinates x=-2, y=-9.

2. Analytical. Calculate the derivative of the function f(x)
\frac{df}{dx}=2x+4
Solve the equation:
2x+4=0
will give the solution x=-2.
Replace x=-2 in the f(x) function and you'll get the value of y:
(-2)^2+4 \cdot (-2)-5=4-8-5=-9

You get the same answer: x=-2, y=-9

So the answer is
<span>B. (-2, -9)</span>

7 0
3 years ago
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