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Nadya [2.5K]
3 years ago
7

HELP DUE LATER TODAY:The temperature outside dropped 13°F in 6 hours. The final temperature was -4°F. What

Mathematics
1 answer:
Marina86 [1]3 years ago
3 0

Answer:the answer is 9

Step-by-step

If you subtract 13 by 4 it’s 9

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1/5k + 15 factor out the coefficient!
skelet666 [1.2K]
1/5k+ 15
= 1/5k+ 15* (5/5) (because 5/5= 1)
= 1/5k+ (15*5)/ 5
= 1/5k+ 75/5
= 1/5k+ 75* (1/5)
= 1/5(k+ 75) (distributive property)

The final answer is 1/5(k+ 75).
3 0
3 years ago
Is an imaginary "line" from the Earth to the Moon a line, a ray, or a segment? and WHY?
sesenic [268]

Answer:

Segment

Step-by-step explanation:

It is a segment because it has two endpoints (the Earth and Moon). If it was a ray, it would go on forever in one direction. It doesn't, so the imaginary line is a segment.  

The first image is a segment, the second is a ray.

Hope this helps. :)

7 0
4 years ago
Solving systems of equations with substitution:<br> y= 2x-4 <br>y= -x+5<br><br>help please!
Furkat [3]
<span>y= 2x-4 
y= -x+5
so

</span><span>2x-4 = -x+5
2x +x = 5 +4
3x = 9
x =3

y = 2x-4
y =2(3) - 4
y = 6-4
y = 2

answer: (3,2)</span>
4 0
3 years ago
which shows one way to determine the factors of x^3 – 12x^2 – 2x 24 by grouping?a. x(x^2 – 12) 2(x2 – 12)b. x(x^2 – 12) – 2(x2 –
BaLLatris [955]
Hello,

x^3-12x²-2x+24=x²(x-12)-2(x-12)=(x-12)(x²-2)
Answer D

6 0
3 years ago
Read 2 more answers
Find an equation of the sphere with center (2, −10, 3) and radius 5. $$25=(x−2)2+(y−(−10))2+(z−3)2 use an equation to describe i
lana66690 [7]

In the x,y plane, we have z=0 everywhere. So in the equation of the sphere, we have

25=(x-2)^2+(y+10)^2+(-3)^2\implies(x-2)^2+(y+10)^2=16=4^2

which is a circle centered at (2, -10, 0) of radius 4.

In the x,z plane, we have y=0, which gives

25=(x-2)^2+10^2+(z-3)^2\implies(x-2)^2+(z-3)^2=-75

But any squared real quantity is positive, so there is no intersection between the sphere and this plane.

In the y,z plane, x=0, so

25=(-2)^2+(y+10)^2+(z-3)^2\implies(y+10)^2+(z-3)^2=21=(\sqrt{21})^2

which is a circle centered at (0, -10, 3) of radius \sqrt{21}.

3 0
4 years ago
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