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3 years ago

4b + 21 = −3(b − 7) + 7b

Mathematics

1 answer:

Lana71 [14]3 years ago

6 0

4b+21=-3b+21+7b
4b+21=4b+21
it means that the expression shows an identity

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If he starts at 1 and jumps 3 units to the right, then where is he on the number line? How far away from zero is he? (explain ho

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4, he is 4 spaces away from zero.

Step-by-step explanation: I know things

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2 years ago

What is the slope of his line?

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Answer:

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2 years ago

Read 2 more answers

√70 is between which two numbers on the number line?

Leto [7]

Answer:

C) 8 and 9

Step-by-step explanation:

We know that 70 is between two perfect squares.

The square numbers 64 and 81 can help us solve this question.

64<70<81

We take square root to get:

$\sqrt{64} \: < \: \sqrt{70} < \sqrt{81}$

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The correct option is C.

6 0

2 years ago

PLEASE HELP

Finger [1]

The range of the function is $\{-19,-4,16\}$

Explanation:

The function is $f(n)=5n-4$

The domain of the function is $\{-3,0,4\}$

We need to find the range of the function.

The range can be determined by substituting the values of domain in the function.

Thus, the range of the function when the domain is -3 is given by

$f(-3)=5(-3)-4$

$=-15-4$

$=-19$

Thus, the range is -19 when $n=-3$

The range of the function when the domain is 0 is given by

$f(0)=5(0)-4$

$=0-4$

$=-4$

Thus, the range is -4 when $n=0$

The range of the function when the domain is 4 is given by

$f(4)=5(4)-4$

$=20-4$

$=16$

Thus, the range is 16 when $n=4$

Thus, the range of the function is $\{-19,-4,16\}$ when their corresponding domain is $\{-3,0,4\}$

Arranging the range in order from least to greatest is given by

$\{-19,-4,16\}$

Hence, the range of the function is $\{-19,-4,16\}$

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2 years ago

Zack used 4 centimeters of tape to wrap 2 presents. How many presents did Zack

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Answer:

7 presents

Step-by-step explanation:

He can wrap the 7 very small presents with that amount of tape

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2 years ago