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user100 [1]
3 years ago
5

Need help please! asap

Mathematics
2 answers:
crimeas [40]3 years ago
8 0
Answer
this is a test
Rufina [12.5K]3 years ago
6 0

don't cheat its bad that u are asking answers for your test

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Let R={0, 1, 2, 3} be the range of h(x) = x - 7. The domain of h inverse is_____.
Alecsey [184]

Answer:

{-7,-6,-5,-4}

Step-by-step explanation:

5 0
3 years ago
What is the third term in the expansion of (x+2)^3
maw [93]

Answer:

(x+2)^3=x^3-6x^2+12x-8

Step-by-step explanation:

6 0
3 years ago
40% of the students passed both exams. 80% of the students passed the second exam. how many students (in percent) who passed the
navik [9.2K]

50%. students (in percent) who passed the second exam also passed the first exam.

Let's imagine that there are 100 kids in the teacher's class. We know that 40 of them passed BOTH tests, and 80 passed the second test.

Because if they weren't, they wouldn't have passed the first test and consequently wouldn't have passed both, we can be sure that the group of students who passed BOTH tests is only made up of the 80 who passed the second test.

Thus, both tests were passed by 40 of the 80 pupils who passed the second one:                                      

40/80 = 1/2 = 50%.

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7 0
1 year ago
Select the correct answer.
maks197457 [2]
The answer to this question has to be D. 42.75 square inches.
7 0
2 years ago
17. Solve the following:<br> x – 3y = 5<br> 5x – 2y = -1
Phantasy [73]

Answer:

(- 1, - 2 )

Step-by-step explanation:

Given the 2 equations

x - 3y = 5 → (1)

5x - 2y = - 1 → (2)

Rearrange (1) expressing x in terms of y by adding 3y to both sides

x = 5 + 3y → (3)

Substitute x = 5 + 3y in (2)

5(5 + 3y) - 2y = - 1 ← distribute left side

25 + 15y - 2y = - 1

25 + 13y = - 1 ( subtract 25 from both sides )

13y = - 26 ( divide both sides by 13 )

y = - 2

Substitute y = - 2 in (3) for corresponding value of x

x = 5 + (3 × - 2) = 5 - 6 = - 1

Solution is (- 1, - 2 )

8 0
3 years ago
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