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kvv77 [185]
3 years ago
10

Hello there tiny humans can any you answer this pls for me

Mathematics
2 answers:
Pavlova-9 [17]3 years ago
5 0

Answer:

28. B

29:

A. 5x-7

B. 15b+25

C. 16x^2+4x

D. 13g-20

E. 6h+23

30:

A. Constant = 103, Coefficient= 94, Variable= w

B. Constant= -3, coefficient= 18, variable= x

C. Constant= -7, coefficient = -5, variable = y

D. Constant = 16, coefficient = -24, variable = z

31:

A. x+10

B. 13-9/x

C. 9x+4

D. 4+11x

choli [55]3 years ago
3 0

Answer:

1) B

2) a. 5x-7 b. 15b + 25 c. 16x^2 + 4x d. 13g -20. e. 6h + 23

Step-by-step explanation:

I’m sorry if any of them are wrong but I believe they’re right, most of it was distribution

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PLEASE I NEED HELP THX :) <3
SVETLANKA909090 [29]

Answer: 5/2

Step-by-step explanation:

Plug in two points from the table into the formula y2-y1 divided by x2-x1

I hope this helps.

6 0
3 years ago
According to the Bureau of Labor Statistics, students who have an after-school job spend an average of 42 fewer minutes per day
IgorLugansk [536]

Answer:

126 hrs

Step-by-step explanation:

-Given the school year has 180 days and the non-working student spends 42 minutes more than the working student.

-The total time during the school year is calculated as;

Total Time=Time/day \times No \ of \ Days\\\\=42\  minutes \times 180\\\\=7560\ minutes

We convert our calculated time in hour(1hr=60 minutes):

=\frac{7560\ mins}{60\ mins}\\\\=126\ hrs

Hence, the average non-working spends an average of 126 hrs that the working student.

4 0
3 years ago
Consider the following pair of equations:
Zinaida [17]

Answer:

The lines representing these equations intercept at the point (-4,2) on the plane.

Step-by-step explanation:

When we want to find were both lines intercept, we are trying to find a pair of values (x,y) that belongs to both equations, which means that it satisfies both equations at the same time.

Therefore, we can use the second equation that gives us the value of y in terms of x, to substitute for y in the first equation. Then we end up with an equation with a unique unknown, for which we can solve:

x+y=-2\\x+(2x+10)=-2\\x+2x+10=-2\\3x+10=-2\\3x=-2-10\\3x=-12\\x=\frac{-12}{3} \\x=-4

Next we use this value we obtained for x (-4) in the same equation we use for substitution in order to find which y value corresponds to this:

y=2x+10\\y=2(-4)+10\\y=-8+10\\y=2

Then we have the pair (x,y) that satisfies both equations (-4,2), which is therefore the point on the plane where both lines intercept.

5 0
3 years ago
The function f(x) = 25(4)^x represents the growth of a bird population every year in a national park. Kyle wants to manipulate t
Natasha_Volkova [10]

f(x)=25(4)^{\frac{x}{2}} will be the function to calculate population every half year.

Further explanation:

The given formula is:

f(x) = 25(4)^x

In the given formula, x represents the amount of time in years. So, in order to convert the given function for yearly calculation of population, to find the population every half year the time will be converted into half. This means that instead of x, x/2 will be used.

So the new function will be:

f(x) = 25(4)^{\frac{x}{2}}

Keywords: Population growth, Population growth function

Learn more about population growth at:

  • brainly.com/question/10689103
  • brainly.com/question/118412

#LearnwithBrainly

6 0
3 years ago
A sewing project requires 6 1/8 yd of material that sells
krok68 [10]
I think it would be A
6 0
3 years ago
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