3 years ago

(PLEASE HELP!!! DUE 4:30!!!) Image of the problem is attached.

Mathematics

1 answer:

Lisa [10]3 years ago

5 0

Answer:

i got I got y=.57x + 2.3 for the line of best fit

I got about 12.56 for number two by plugging 18 into x

Step-by-step explanation:

I plugged it into my calculator

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hjlf

4x - 3y + 20 = 0....4x - 3y = -21

4x - 3y = -21.....multiply by -2
5x - 6y = -25
----------------
-8x + 6y = 42 (result of multiplying by -2)
5x - 6y = -25
---------------add
-3x = 17
x = -17/3

this system of equations has 1 solution

4 0

3 years ago

Bennett is setting up a light display for a wedding with two 10-foot strands of lights. The lights will be attached to the top o

Anuta_ua [19.1K]

Answer:

7.1

Step-by-step explanation:

write pythagorean theorem $x^{2}$ + $x^{2}$ = $10^2$

2 $x^2$ = 100

divide 2 both side:

$x^{2}$ = 50

$\sqrt{x^2}$ = $\sqrt{50}$

$x$ = $\sqrt{50}$

$x$ = 7.07106781

round to nearest tenth:

$x$ = 7.1

8 0

3 years ago

1) What are the solutions of (x/3) > -1? <br><br>is this asking if I need multiple solutions?

BartSMP [9]

Yes...

x/3 > -1

what values of x make x/3 > -1

hint... your answer will look like like x > (number)

7 0

2 years ago

Rewrite square root of -49 -4 in complex number notation please help

SVEN [57.7K]

Note that if $i^2=-1$ than $i=\sqrt{-1}$ ,

Also note that $\sqrt{ab}=\sqrt{a}\sqrt{b}$

So we have,

$\sqrt{-49}=\sqrt{-1}\sqrt{49}=\boxed{7i}$

and,

$\sqrt{-4}=\sqrt{-1}\sqrt{4}=\boxed{2i}$

Hope this helps.

r3t40

4 0

3 years ago

What is the volume, in cubic units, of a pyramid of height 8 and a square base of length 15?

AURORKA [14]

Answer:

900 cuboc unit

Step-by-step explanation:

Volume of pryamid= 1/3× area× height

= 1÷3×15^15×8

= 900cubic unit

7 0

3 years ago

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