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3 years ago

Rewrite 7 − 8 using the additive inverse and display the new expression on a number line.

Mathematics

2 answers:

muminat3 years ago

6 0

7-8 = 7+- =-1 if you going to the left whit -8 and you to the right with 7 so the answer should be -1

ANTONII [103]3 years ago

4 0

Answer:

7+-8

Step-by-step explanation:

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olchik [2.2K]

Answer:

42.0

Step-by-step explanation:

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3 years ago

Read 2 more answers

Select the correct answer.

madreJ [45]

Answer:

y=1/2x+2

Step-by-step explanation:

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3 years ago

PLEASE HELP ME PLS ITS MATH

Ganezh [65]

Answer:

Step-by-step explanation:

We know that

$h(t)=-16t^2+1296$

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7 0

1 year ago

Write an expression to represent "the sum of triple a number and fifteen."

lana66690 [7]

The sum is adding
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3 0

4 years ago

Given two vectors A=2i+3j+4k,B=i-2j+3k find the magnitude and direction of sum<br>(physics question)

Law Incorporation [45]

Answer:

$Magnitude =\sqrt{59} \\\\Direction \: of \: \overrightarrow{A + B} = \frac{3}{\sqrt {59}} , \:\frac{1}{\sqrt {59}} , \:\frac{7}{\sqrt {59}}$

Step-by-step explanation:

A=2i+3j+4k

B=i-2j+3k

Sum of the vectors:

A + B = 2i+3j+4k + i-2j+3k = 3i + j + 7k

$Magnitude =\sqrt{3^2 + 1^2+ 7^2} \\\\Magnitude =\sqrt{9+1+49} \\\\Magnitude =\sqrt{59}$

Direction of the sum of the vectors:

$\widehat{A + B} =\frac{\overrightarrow{A + B}}{Magnitude\: of \:\overrightarrow{A + B}} \\\\\widehat{A + B} =\frac{3i + j + 7k}{\sqrt {59}} \\\\\widehat{A + B} =\frac{3}{\sqrt {59}} i +\frac{1}{\sqrt {59}} j+\frac{7}{\sqrt {59}} k\\\\Direction \: of \: \overrightarrow{A + B} = \frac{3}{\sqrt {59}} , \:\frac{1}{\sqrt {59}} , \:\frac{7}{\sqrt {59}} \\\\$

3 0

3 years ago