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jarptica [38.1K]
3 years ago
15

Can u plz help me in this plz?

Mathematics
1 answer:
Yanka [14]3 years ago
7 0
There isn’t a picture what do you need help with
You might be interested in
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
The graph of the equation y equals 1/2 x - 3 determine the value of y for the point (4,y).
oksano4ka [1.4K]
The answer is b. If your problem is y=1/2x-3

3 0
3 years ago
<img src="https://tex.z-dn.net/?f=%20%5Csqrt%7B%20%5Cfrac%7B49%7D%7B81%7D%20%7D%20" id="TexFormula1" title=" \sqrt{ \frac{49}{81
NNADVOKAT [17]
7/9 and 0.7 one is points and one is a fraction
7 0
3 years ago
Read 2 more answers
5x-(x+1)=5-2x i dont understand what to do. Plz help
Vlada [557]

Answer:

x=1

Step-by-step explanation:

5x-(x+1)=5-2x

distribute

5x-x-1 = 5-2x

4x-1 = 5-2x

add 2x on each side

4x-1+2x = 5-2x+2x

6x -1 = 5

add 1 on each side

6x-1+2 = 5+1

6x = 6

divide by 6

6x/6 = 6/6

x = 1

6 0
3 years ago
? i’m so confused pls help
jasenka [17]

Answer:

(A°/360°)*2s is a part of the circumference of the circle with radius s that is the base of the cone. It is equal to 2r, which is the circumference of the cylinder.

Step-by-step explanation:

3 0
3 years ago
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