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lana [24]
2 years ago
13

Write a quadratic equation in standard form with the roots of 2 and -5. Assume a = 1.

Mathematics
1 answer:
trasher [3.6K]2 years ago
6 0

Answer:

x^2+3x-10

Step-by-step explanation:

If roots are 2 and -5, then the unexpanded form must be (x-2)(x+5). Expand using foil or preferred method to get answer.

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The perimeter of a rectangle is 100 yd. if its width is four times its length, what is the area?
7nadin3 [17]

<span>Length = l</span>

<span>
Width = w</span>

<span>
Perimeter = p = 100

</span>

<span>Perimeter of rectangle = 2(l+w)</span>

<span>
100 = 2 (4w + w)</span>

<span>
100 = 2(5w)</span>

<span>
100 = 10w</span>

<span>
100/10 = w</span>

<span>
10 = w</span>

<span>
w =  10



Area of rectangle = length * width</span>

<span>
a = l*w</span>

<span> a = 4w*w</span>

<span>
a = 4w^2............(1)</span>

<span>
Put the value of w in (1)</span>

<span>
a = 4(10)^2</span>

<span>
a= 4(100)</span>

<span>
a = 400 yd^2</span>

4 0
3 years ago
Give me an answer only
masha68 [24]

Answer:

Step-by-step explanation:

option 2

5 0
2 years ago
Read 2 more answers
An antelope can run at a speed of 61 miles per hour. what is this speed in yards per second? round to nearest hundredths
Mars2501 [29]
107360 yards = 31 miles = 1 hour
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3 0
3 years ago
P(A)=0.45, P(A∩B)=0.15 and P(B\A)=0.25 what is the value of P(A\B)
Fiesta28 [93]

Answer:

0.35? That is correct?

7 0
3 years ago
Write an equation of the line that has a slope of 5 and goes through the point (3,3)
professor190 [17]

Answer:

y=5x-12

Step-by-step explanation:

The general equation of a line is <em>y=mx+b</em>.

The equation you currently have is <em>y=5x+b</em>.

Plug in the point (3,3) which will get you <em>3=5(3)+b</em>.

Solve the equation by solving what the y-intercept (b) is to create the new final equation.

3=5(3)+b

3=15+b

b=3-15

b=-12

y=5x-12

8 0
2 years ago
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