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Margarita [4]
2 years ago
5

Help for brainliest please

Mathematics
2 answers:
Stels [109]2 years ago
6 0

Answer:

(2, -2)

Step-by-step explanation:

The graph will be attached with answer.

tiny-mole [99]2 years ago
4 0

Answer:

yes I know the answer.com

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Given the diagram below find the value of x if the area is 21 aquare meters
Oksanka [162]

Answer:

The answer is <u><em>7</em></u>!

Step-by-step explanation:

(x-4) (x) = 21, x^2 - 4x = 21, x^2 - 4x - 21 = 0, (x - 7) (x + 3) = 0, x = 7 and -3; x can't be negative so the answer is 7!

x = 7 and x - 4 (other side) = 3

5 0
2 years ago
Q ,# 13 Graph the function<br>Y = - X + X ^2
GalinKa [24]
We have the following function that is a quadratic function:

y=-x+x^2

So the graph of this function is shown in the figure below. This is a <em>parabola</em> as you can see. The roots of this functions, that is, the x-intercepts are:

y=-x+x^2 \\ y=x(x-1) \\ \\ x_{1}=0 \ and \ x_{2}=1

As you can see in the figure. This function decreases from (-\infty,0.5) and increases from (0.5, \infty)

Finally, another thing we can see from the graph is that the vertex is the point:

V(0.5,-0.25)


4 0
3 years ago
Read 2 more answers
Gretchen finished her first lap in the 200 m freestyle event in 28.78 seconds. She completed the second lap in 31.31 seconds. By
Ray Of Light [21]

Answer:

her time increased 2.53 seconds

Step-by-step explanation:

subtract 28.78 from 31.31 to get how much her time increased.

8 0
3 years ago
Mike measured the height of an art frame as 6.33 feet, but the actual height was 7 feet. what is the percent of error in mike's
natulia [17]

Answer:

the error is 7-6.33=0.67

the percentage of error is (0.67/7)×100≈9.5%

6 0
1 year ago
What is the slope of a line parallel to the line whose equation is 52 +y = -9. Fully
inna [77]

Answer:

Step-by-step explanation:

3.0

5 0
2 years ago
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