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Viktor [21]
2 years ago
11

Which of these is a binomial? O A. x + 2y2 - 7 O B. ab O C. 5xy O D. 2x3 - 7y3​

Mathematics
1 answer:
Lemur [1.5K]2 years ago
8 0

Answer:

D

Step-by-step explanation:

2 terms

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25,000 bricks were used to build the new library. The total weight of the bricks was 30,000 pounds. What is the weight of each b
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I would go with 1.2 pounds
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Y=3.6x<br> Is this direct variation? <br> if so, how do i identify the constant variation
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a. Assuming a linear relationship between year and salaries by gender, determine when the median annual salary for women will ex
Snowcat [4.5K]

First We have to find the tendency for both cases individually. Let's calculate the equation of the line for each one.

For Men we take two points (year, salary) ( 2 , 35,308) ( 4 , 37076) With these points we are going to calculate the slope of the line.

m=\frac{y2-y1}{x2-x1}=\frac{37076-35308}{4-2}=884

Then, we have to calculate the intercept of the line with the slope and point (2, 35,308)

y= mx+ b

35,308 = 884*(2)+b

Isolating b,

35,308 - 1768 = b

33540=b

The first equation must be y = 884x +33540

For Women we take two points (year, salary) ( 2 , 27,508) ( 4 , 29,796 ) With these points we are going to calculate the slope of the line

m=\frac{y2-y1}{x2-x1}=\frac{29,796-27,508}{4-2}=1144

Then, we have to calculate the intercept of the line with the slope and point (2, 27,508)

y= mx+ b

27,508 = 1144*(2)+b

Isolating b,

27,508 - 2288 = b

25220=b

The second equation must be y = 1144x +25220

Now We are going to find the incercept of these equations, we are going to formulate the following equation

884x+33540 = 1144x+25220

33540-25220=1144x-884x ( Isolating terms with x)

8320=260x (Solving on each side)

8320/260 = x =32 ( Isolating x)

It implies that after 32 years Women would exceed men.

B. It seems that as the number of bachelor degrees of women exceeds men's number, the salary increases at a higher rate. So , the change would be greater for women than men every year.

3 0
1 year ago
I need help on this it would be appreciated!
LuckyWell [14K]

Answer:

13

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
What is the vertex is of the graph of y=-2x^2+8x+9
IrinaVladis [17]
Hi, 
y=-2x^2+8x+9\\&#10;=-2(x^2-4x+4-4)+9\\&#10;=-2(x-2)^2+8+9\\&#10;=-2(x-2)^2+17\\&#10;

Vertex is (2,17)

5 0
3 years ago
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