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Alinara [238K]
3 years ago
6

Why are there numbers by the subject sorry im new

Mathematics
2 answers:
dedylja [7]3 years ago
4 0

Answer: If you mean by the B symbol next to a bunch of points. Those are points you can earn depending on the question. For example, if I helped someone with their problem, I would receive the amount of points that they put up for that question. I’m pretty sure the points can also help you to rank up and give you a new title or something. Im new myself lol

marysya [2.9K]3 years ago
3 0
It’s how many points you get when you answer the question
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What is the vertex of f(x)=-x^2-8x
frez [133]

\bf f(x) = -x^2-8x\implies f(x) = -x^2-8x+0 \\\\[-0.35em] ~\dotfill\\\\ \textit{vertex of a vertical parabola, using coefficients} \\\\ f(x)=\stackrel{\stackrel{a}{\downarrow }}{-1}x^2\stackrel{\stackrel{b}{\downarrow }}{-8}x\stackrel{\stackrel{c}{\downarrow }}{+0} \qquad \qquad \left(-\cfrac{ b}{2 a}~~~~ ,~~~~ c-\cfrac{ b^2}{4 a}\right) \\\\\\ \left(-\cfrac{-8}{2(-1)}~~,~~0-\cfrac{(-8)^2}{4(-1)} \right)\implies \left( -4~~,~~0+\cfrac{64}{4} \right)\implies (-4~,~16)

7 0
3 years ago
Read 2 more answers
Ill give brainliest <br> Triangle Sum Theorem CLASSWORK
zepelin [54]

Step-by-step explanation:

Sum of angles in a triangle = 180°.

Question 3:

We have 90° + 61° + (14x + 1)° = 180°.

=> 14x° + 152° = 180°

=> 14x° = 28°

=> x = 2.

Question 4:

We have 70° + 55° + (4x + 3)° = 180°.

=> 4x° + 128° = 180°

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Pls help asap!!! just need answers not work
dem82 [27]

Answer:

b= 5\sqrt{3} c = 10,   x=7 hypotenuse = 7\sqrt{2}

Step-by-step explanation:

A 30-60-90 triangle has the ratios of x-x\sqrt{3}-2x so if x=5, then 5-5\sqrt{3} - 10

for a 45-45-90, if one leg is 7, so is the other x\sqrt{2} so hypotenuse is 7\sqrt{2}

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3 years ago
Find the roots of the equation: y=4(X+4)^2 -12
Dafna1 [17]
0=4(x²+8x+16)-12
0=4x²+32x+64-12
0=4x²+32x+52
0=x²+8x+13
D=b²-4ac
D=64-52=12
x=(-b-√D)/2a
x=(-b+√D)/2a
x=(-8-2√3)/2= (-2(4+√3))/2= -(4+√3)
AND
x=(-8+2√3)/2=-2(4-√3)/2= -(4-√3)
3 0
4 years ago
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Neporo4naja [7]
D'(-3,-4)
E'(-3,-10)
F'(3,-6)
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