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3 years ago

A line passes through the points(-3,-1) and (-5,4) what is the slope of this Line

Mathematics

1 answer:

natali 33 [55]3 years ago

8 0

Answer:

The slope is -5/2

Step-by-step explanation:

To find the slope of a line between two points, we use the equation

m = (y2-y1)/ (x2-x1)

where (x1,y1) and (x2,y2) are the two points

m = (4--1)/(-5--3)

= (4+1)/(-5+3)

= 5/-2

= -5/2

The slope is -5/2

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Use mental math to solve the equation w - (-3) = 7 please help

tester [92]

w-(-3)=7

Pretend that there is a -1 in front of the bracket

w-1(-3)=7

Mutiply the bracket by -1

(-1)(-3)=3

w+3=7

Move +3 to the other side. Sign changes from +3 to -3.

w+3-3=7-3

w=4

Answer: w=4

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3 years ago

2)<br> Solve the quadratic equation by taking square roots.<br> 4x^2 = 24

Veronika [31]

Answer:

4x²=24

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3 years ago

If remove the zero from 0.76 would it change the value of the number

wariber [46]

Question 1:

<h3>Answer: The number does <u>not</u> change</h3>

Removing the zero from 0.76 leads to .76 which is the same as before. Both lead to $7.6 \times 10^{-1}$ in scientific notation.

Personally I prefer the zero up front to make the decimal point stand out easier. Of course it's just a preference, so its up to you to decide which you prefer.

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

Question 2:

<h3>Answer: Yes the number changes</h3>

Taking the zero out of 10.25 leads to 1.25 which is definitely a different number (and smaller). Therefore, this zero is a significant digit compared to before.

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2 years ago

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3241004551 [841]

Answer: Correct

Step-by-step explanation:

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2 years ago

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Stolb23 [73]

Answer:

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Step-by-step explanation:

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