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3 years ago

Help I can’t figure this out

Mathematics

2 answers:

chubhunter [2.5K]3 years ago

8 0

Answer:

3.74

Step-by-step explanation:

Use Pythagorean theorem

2.5^2=x^2=4.5^2

x=3.74

Yakvenalex [24]3 years ago

7 0

Answer:

The answer is √14 then rounded to 3.74

Step-by-step explanation:

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choose the equation below that represents the line that passes through the point (−2, −1) and has a slope of 5. (5 points) y − 1

Rus_ich [418]

Equation of a line;
y=mx+c
m=5
y=5x+c
Replacing for x and y using point (-2, -1)
-1=5(-2)+c
-1=-10+c
c=-1+10
c=9
y=5x+9

4 0

3 years ago

What is the equation in point-slope form of a line that passes through the points (3, −5) and (−8, 4) ?

maxonik [38]

ANSWER

$y + 5= - \frac{9}{11} (x-3)$

or

$y - 4= - \frac{9}{11} (x + 8)$

EXPLANATION

We want to find the equation in point-slope form of a line that passes through the points (3, −5) and (−8, 4).

The point-slope form is given by;

$y-y_1=m(x-x_1)$

where

$m = \frac{4 - - 5}{ - 8 - 3} = \frac{4 + 5}{ - 11} = - \frac{9}{11}$

is the slope of the line.

If

$(x_1,y_1)=(3,-5)$

The point-slope form is

$y + 5= - \frac{9}{11} (x-3)$

On the other hand, if
$(x_1,y_1)=( - 8,4)$

Then the point-slope form is,

$y - 4= - \frac{9}{11} (x + 8)$

These two equations are the same when simplified.

4 0

3 years ago

Greg has a table that is 3.75 meters in length. He wants to make a tablecloth that is 20 centimeters longer on each end than the

kap26 [50]

Answer:

it is (3.75 times 100/1) then add twenty

Step-by-step explanation:

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3 years ago

the length of a rectangle is 3 more than twice its width find the dimensions of the rectangle if the perimeter is 48 inches

irinina [24]

So first you would set up the equation of 48 = x + x + 3(2)x + 3(2)x. Perimeter is equal to width + width + length + length-- x is width, length is 3 times 2x, so that's where that equation comes from. You combine like terms and get 48 = 2x + 6x + 6x or 48 = 14x. You then divide by 14 and get x ≈ 3.4. Then to find the dimensions you substitute it back to what I said the dimensions were. Width is x, so width is around 3.4. Length is 3 times twice the width (x) so 3(2x) or 6x. So you substitute ≈3.4 for x and get ≈20.6. The width is ≈3.4 and the length is ≈20.6 (the dimensions).

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3 years ago

Solve for b. 4 6 b = [?] b Pythagorean Theorem: a2 + b2 = c2

velikii [3]

Answer:

b= the square root of 20

Step-by-step explanation:

if a^2+b^2=c^2, then c^2-a^2=b^2. 6^2-4^2=c^2. So 36-16=b^2. 36-16=20.20=b^2, then take the square root of both sides to get b= the square root of 20.

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2 years ago