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Ierofanga [76]
3 years ago
5

Please help . I’m giving 75 points.

Mathematics
2 answers:
MaRussiya [10]3 years ago
7 0

Answer:

-9x2- 7z+2

Step-by-step explanation:

4+3z-10z-13+2

-9x^2-7z+2

Monica [59]3 years ago
3 0

Answer:

-9x^{2}-7z+2

Step-by-step explanation:

4x^{2}+3z-10z-13x^{2}+2

-9x^2-7z+2

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What is the measure of angle C?
irina1246 [14]

Answer:

49°

Step-by-step explanation:

First, solve for x.

3x-7+2x+17=90

5x+10=90

5x=80

x=16

Then put 16 in for x.

2(16)+17=

32+17=49

5 0
3 years ago
Find the ratio in which the line joining the points (2, 4, 16) and (3, 5, -4) is divided by the plane 2x – 3y+ z+ 6 = 0. Also fi
Nastasia [14]

Answer:

Step-by-step explanation:

let the plane intersects the join of points in the ratio k:1

let (x,y,z) be the point of intersection.

x=\frac{3k+2}{k+1} \\y=\frac{5k+4}{k+1} \\z=\frac{-4k+16}{k+1} \\\because ~(x,y,z)~lies~on~the~plane.\\2(\frac{3k+2}{k+1} )-3(\frac{5k+4}{k+1} )+\frac{-4k+16}{k+1} +6=0\\multiply~by~k+1\\2(3k+2)-3(5k+4)+(-4k+16)+6(k+1)=0\\6k+4-15k-12-4k+16+6k+6=0\\-7k+14=0\\k=2\\x=\frac{3*2+2}{2+1} =\frac{8}{3} \\y=\frac{5*2+4}{2+1}=  \frac{14}{3} \\z=\frac{-4*2+16}{2+1} =\frac{8}{3}

point of intersection is (8/3,14/3,8/3)

and ratio of division is 2:1

5 0
3 years ago
Please solve for x will mark brainliest answer
inna [77]

Answer:

x ≥ - 8

Step-by-step explanation:

Given

\frac{x}{2} ≥ - 4

Multiply both sides by 2 to eliminate the fraction

x ≥ - 8

7 0
3 years ago
Read 2 more answers
Which one should I choose
Sveta_85 [38]
Answer C or the third one
8 0
3 years ago
The rectangular prism shown below has a volume of 42 cubic meters. What is the length of the prism? Volume = L x W x H or B x H
Basile [38]

Answer:

something

Step-by-step explanation:

4 0
3 years ago
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