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OverLord2011 [107]
3 years ago
14

Help with this please ..

Mathematics
1 answer:
erastova [34]3 years ago
3 0
N=9
Use the distributive property
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Need help plotting x and y intercept heres a better explanation of what I need to do
Alecsey [184]
Do the x first it gives u the number then plot y
4 0
3 years ago
Find the values for a and b that would make the equality true.
Crank

Answer:

a = - 4, b = 5

Step-by-step explanation:

Expand the left side and compare the coefficients of like terms on the right side.

- 3(2x² + ax + b)

= - 6x² - 3ax - 3b

Comparing like terms with - 6x² + 12x - 15

x - term → - 3a = 12 ( divide both sides by - 3 )

                    a = - 4

constant term → - 3b = - 15 ( divide both sides by - 3 )

                               b = 5

6 0
3 years ago
Evaluate each expression if a=2,6=-3,c=-1, and d=4.<br><br> 2d-a<br> ———-<br> b
Volgvan
2(4)-(2) / -3 = -2
2•4 is 8 - 2 is 6, 6 divided by -3 is -2.
4 0
4 years ago
The coordinates of the vertices of △DEF are D(−4, 1) , E(3, −1) , and F(−1, −4) .
alisha [4.7K]

Solution-

We can solve this problem by using the concept of slope.

Slope of a line joining two points A (x1,y1) and B (x2,y2) is given by-

slope of AB= (y2-y1)÷(x2-x1)

We have given the vertices of a triangle as D(-4,1), E(3,-1) and F(-1,-4).

∴ slope of line joining D and E= (-1-1)÷(3-(-4))= -2/7

slope of line joining D and F= (-4-1)÷(-1-(-4))= -5/3

and  slope of line joining E and F= (-4-(-1))÷(-1-3)= 3/4

∵ Two lines are perpendicular to each other if product of their slopes= -1

Statement 1 is wrong because, (slope of DE)×(slope of EF)=(-2/7)×(3/4)=-3/14≠ -1

Statement 2 is wrong because, (slope of DE)×(slope of DF)=(-2/7)×(-5/3) =10/21≠ -1

Statement 3 is wrong because,(slope of DF)×(slope of EF)=(-5/3)×(3/4)= -5/4≠ -1

∴Statement 4 is correct.


7 0
3 years ago
Terry invested money in an account that paid 4 percent simple interest for one year. After the year ,terry had $156 in his accou
Luda [366]

Answer:

<u>The initial deposit that Terry made was $ 150</u>

Step-by-step explanation:

1. Let's review the information given to us to answer the question correctly:

Future Value of the account = $ 156

Interest rate = 4% simple interest = 0.04

Terry did not make any withdrawal or deposits

2. What was the beginnings amount of money in Terry's account?

Let's recall the simple interest formula for answer this question:

FV = P * (1 + rt)

Replacing with the values we have:

156 = P * (1 + 0.04)

156 = 1.04p

P = 156/1.04

P = 150

<u>The initial deposit that Terry made was $ 150</u>

3 0
4 years ago
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