Please simplify the question

Mathematics

1 answer:

ch4aika [34]3 years ago

7 0

Answer: 11

Explanation: You did everything right in terms of the steps you took. It looks like you accidentally wrote "1" instead of "-4" as the answer to "2(-2)".

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Prove that 7-4√7 is irrational

mixas84 [53]

Answer:

hey ;

$7 - 4 \sqrt{7}$

is an irrational number

Step-by-step explanation:

here's the proof in attachment.

i hope it helped........

3 0

3 years ago

Find the range of y = -3x + 7 for the domain {-8, -6, -3, -2, 2}

svetlana [45]

The domain is the set of x-values of a function. The range is the set of y-values of a function.

You are told that the domain, or x-values, are -8, -6, -3, -2, and 2. To find the range, you just need to plug in each of the x-values into the function y = -3x + 7 and find the value of y.
1) When x = -8:
y = -3x + 7
y = -3(-8) + 7
y = 24 + 7
y = 31

2) When x = -6
y = -3x + 7
y = -3(-6) + 7
y = 18 + 7
y = 25

3) When x = -3
y = -3x + 7
y = -3(-3) + 7
y = 9 + 7
y = 16

4) When x = -2
y = -3x + 7
y = -3(-2) + 7
y = 6 + 7
y = 13

5) When y = 2
y = -3x + 7
y = -3(2) + 7
y = -6 + 7
y = 1

The range is {31, 25, 16, 13, 1}.

-------

Answer: {31, 25, 16, 13, 1}

5 0

3 years ago

State whether each percent of change is a percent increase or a percent decrease. Then find the percent of increase or decrease

Otrada [13]

Percent decrease. 41%
percent change= (new-old)/old *100
= -41 % the negative means decreasing

8 0

3 years ago

Should be 2/5 I'm doing the test rn

xz_007 [3.2K]

whats the question you are just saying the answer

5 0

3 years ago