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Tema [17]
3 years ago
14

I still don’t understand can someone give a helping hand?

Mathematics
1 answer:
Fofino [41]3 years ago
6 0

Answer:

A

Step-by-step explanation:

A, B, C, and D, are all functions. the " { " is saying that those functions can are different at different points. For A the function is A= -x-2 when x< 2 and then A=x+4 when x\geq -2. At the point x=-2 you can see that the function on the graph is going in two different directions but it stops at x=-2.

Based on the graph you can see that the line on the left has a slope of -1 and if it kept going it would cross the y-axis at y=-2, therefore the equation for the first line is y =-x-2 when x

The second line on the right side has a slope of 1 and crosses the y-axis at y=4 so the equation for that line is y=x+4 when x\geq -2.

The only answer that matches these requirements is A

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What is the exponential form of log7 8 = x?
garik1379 [7]

Answer:

7^x = 8

Step-by-step explanation:

log7 (8) =x

We know that loga (b) =c  can be written as  a^c =b

log7(8) =x   becomes 7^x = 8

7 0
3 years ago
Can someone solve ( quadratics) 6x^2+12x=5+3
BartSMP [9]
Answer is:
here u go your welcome !

6 0
3 years ago
There are 45 carpenters in a crew. 18 of the carpenters have children. What is the ratio of the number of carpenters to the numb
aev [14]
<h3>Answer is  5:3</h3>

==========================================================

Explanation:

There are 45 carpenters total. 18 have kids, so 45-18 = 27 do not have kids.

The ratio of the total to the number who don't have kids is 45:27. We write the numbers in the exact order mentioned. Divide both parts of that ratio by the GCF 9 to get the final answer of 5:3

This says that for every 5 carpenters total, there are 3 who don't have kids.

5 0
3 years ago
The expression 87000(1.12)^t represents the population of a town t hears after 1996. By what percent does the population increas
Tamiku [17]

Answer:

12%

Step-by-step explanation:

Percentage increase of something is often represented in a formula of a format like this:

X=Ar^t

Where X represents the total amount after t years.

A or 87000 in this case represents the starting value, which is this case is the starting population of the town. r or 1.12 represents the percentage increase, if it increases by 12% than the next year has 1.12 times as many people as the previous year so this is represented by 1.12 rather than say 0.12 which would indicate a 88% decrease instead.  t is the time, no. of years in this case, that has elapsed since 1996.

This formula basically means that a town population of 87000 increases by 12% for every year of time that elapses.

Hope this helped!

7 0
3 years ago
Read 2 more answers
Solve for p: 3/8 +p/8= 3 1/8
Ivenika [448]
Solve for p:
p/8 + 3/8 = 25/8
p/8 + 3/8 = (p + 3)/8:
(p + 3)/8 = 25/8

Multiply both sides of (p + 3)/8 = 25/8 by 8:
(8 (p + 3))/8 = (8×25)/8
(8×25)/8 = (8×25)/8:
(8 (p + 3))/8 = (8×25)/8
(8 (p + 3))/8 = 8/8×(p + 3) = p + 3:p + 3 = (8×25)/8
(8×25)/8 = 8/8×25 = 25:
p + 3 = 25

Subtract 3 from both sides:
p + (3 - 3) = 25 - 3
3 - 3 = 0:
p = 25 - 3
25 - 3 = 22:
Answer: p = 22
4 0
3 years ago
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