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LUCKY_DIMON [66]
3 years ago
8

A. Find and explain the error in the work shown.

Mathematics
1 answer:
Marizza181 [45]3 years ago
5 0

<u>The error is that they had placed the numbers in the wrong placeholder.</u> Remember that the Distance formula is D=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2} .

<em><u>Correct Work:</u></em>

D=\sqrt{(5-(-1))^2+(16-15)^2}\\D=\sqrt{6^2+1^2}\\D=\sqrt{36+1}\\D=\sqrt{37}\ \approx 6.08

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Help please. I attempted, but I couldn't succeed.
german

Answer:

y=(3/2)x+-14

First blank: 3

Second blank:2

Last blank:-14

Step-by-step explanation:

The line form being requested is slope-intercept form, y=mx+b where m is slope and b is y-intercept.

Also perpendicular lines have opposite reciprocal slopes so the slope of the line we are looking for is the opposite reciprocal of -2/3 which is 3/2.

So the equation so far is

y=(3/2)x+b.

We know this line goes through (x,y)=(4,-8).

So we can use this point along with our equation to find b.

-8=(3/2)4+b

-8=6+b

-14=b

The line is y=(3/2)x-14.

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3 years ago
What is the solution to the equation 3x+9-7x=2(x+6)
sladkih [1.3K]

The answer is x equals 1/2.

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3 years ago
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8 0
3 years ago
In the diagram below segment DEF is shown(since all three letters are shown, they are collinear). If DE=3x+2, EF= x+5, and DF= 2
amm1812

The value of x is 4.

By Geometry, we know that line segment DF = DE + EF, which is equivalent to:

DF = 3\cdot x + 2 + x + 5

DF = 4\cdot x + 7 (1)

Now we solve algebraically the resulting expression.

If we know that DF = 23, then we solve the equation for x:

4\cdot x + 7 = 23

4\cdot x = 16

x = 4

The value of x is 4.

We kindly invite to see this question on line segments: brainly.com/question/23297288

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What is the volume of a cylinder with base radius 4 and height 7
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Answer:

351.86

Step-by-step explanation:

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