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lbvjy [14]
3 years ago
11

I need this fast guys I'm willing to give brainly

Mathematics
2 answers:
Igoryamba3 years ago
6 0
The value of x is 40° because it is equal to angle C, Therefore if B and C are 80° that means A is 100°
xeze [42]3 years ago
3 0
The value should freaking ummm 36 dang no hold on
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What is the solution of this equation 4(x-8)+10=-10
Rom4ik [11]
<h2> 4(x - 8) + 10 = -10</h2><h2 />

Start by subtracting 10 from both sides.

This gives us 4x - 32 = -20.

Now add 32 to both sides to get 4x = 12.

Now divide both sides by 3 to get <em>x = 3</em>.

5 0
3 years ago
Read 2 more answers
The equation of a quadratic is =2^2+3−2and after you factorizing 2^2+3−2=0you got x = -2 and x = 1/2 and the curve crosses the y
Lelechka [254]

Given the next quadratic function:

y=2x^2+3x-2

to sketch its graph, first, we need to find its vertex. The x-coordinate of the vertex is found as follows:

x_V=\frac{-b}{2a}

where <em>a</em> and <em>b</em> are the first two coefficients of the quadratic function. Substituting with a = 2 and b = 3, we get:

\begin{gathered} x_V=\frac{-3}{2\cdot2} \\ x_V=-\frac{3}{4}=-0.75 \end{gathered}

The y-coordinate of the vertex is found by substituting the x-coordinate in the quadratic function, as follows:

\begin{gathered} y_V=2x^2_V+3x_V-2 \\ y_V=2\cdot(-\frac{3}{4})^2+3\cdot(-\frac{3}{4})-2 \\ y_V=2\cdot\frac{9}{16}+3\cdot(-\frac{3}{4})-2 \\ y_V=\frac{9}{8}-\frac{9}{4}-2 \\ y_V=-\frac{25}{8}=-3.125 \end{gathered}

The factorization indicates that the curve crosses the x-axis at the points (-2, 0) and (1/2, 0). We also know that the curve crosses the y-axis at (0,-2). Connecting these points and the vertex (-0.75, -3.125) with a U-shaped curve, we get:

6 0
1 year ago
There are 12 singers standing. there are 7 less standing than is sitting. how many are sitting?
damaskus [11]

There are 19 singer sitting

7 0
3 years ago
Please help. A rectangle's length and width are in a ratio of 7:3. The area is 84 square feet. What are the
GalinKa [24]

Answer:

length = 14 feet

width = 6 feet

Step-by-step explanation:

A = 84 feet square

ratio of length and width = 7 : 3

total ratio of length and width 10 = a

length = (7/10)a

width = (3/10)a

A = length x width = (7/10)a x (3/10)a = (21/100)a² = 84

a² = 84 x 100 : 21 = 400

a = 20 feet

length = 7/10 x 20 = 14 feet

width = 3/10 x 20 = 6 feet

8 0
3 years ago
May someone help me with this following question I already know it's not (B)
dybincka [34]

Answer:

a

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
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