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3 years ago

Choose the word that best describes the distance between two points.

Mathematics

2 answers:

shepuryov [24]3 years ago

7 0

The best word to describe the distance between two points.
B. Length

Anit [1.1K]3 years ago

3 0

Insert a picture, please.

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Solve for x, y, and z

zloy xaker [14]

Answer:

The solution is x=1,y=2,z=3

Step-by-step explanation:

The given system of equations is ;\

2x−3y+4z=8...(1)

3x+4y−5z=−4...(2)

4x−5y+6z=12...(3)

Make x the subject in equation (1)

$x=\frac{8+3y-4z}{2}...(4)$

Put equation (4) into equation (2) and (3)

$3(\frac{8+3y-4z}{2})+4y-5z=-4$

Multiply through by;

$3(8+3y-4z)+8y-10z=-8$

Expand;

$24+9y-12z+8y-10z=-8$

Simplify;

$17y-22z=-32...(5)$

Equation (4) in (3)

$4(\frac{8+3y-4z}{2})-5y+6z=12$

$2(8+3y-4z)-5y+6z=12$

$16+6y-8z-5y+6z=12$

$y-2z=-4$

$y=2z-4...(6)$

Put equation (6) into equation (5)

$17(2z-4)-22z=-32$

$34z-68-22z=-32$

$34z-22z=-32+68$

$12z=36$

z=3

Put z=3 into equation (6)

y=2(3)-4=2

Put y=2 and z=3 into equation 4

$x=\frac{8+3(2)-4(3)}{2}=1$

The solution is x=1,y=2,z=3

3 0

3 years ago

Can somebody please help me I will mark u brilliant

CaHeK987 [17]

Answer: 14

Step-by-step explanation:

Since they said find the mean

You are suppose to add up all the numbers then divide it by how many numbers are there.

3 0

3 years ago

Read 2 more answers

Express this 1.21 as a fraction

Gnom [1K]

Answer: 121/100

Step-by-step explanation:

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4 years ago

If the equation of a circle is (x + 5)2 + (y - 7)2 = 36, its radius is<br> 6<br> 0<br> 0

Pavel [41]

Answer:

Step-by-step explanation:

Radius of the given circle is 6 units.

Given equation of circle is:

${(x + 5)}^{2} + {(y - 7)}^{2} = 36 \\ \: equating \: it \: with \\ {(x - h)}^{2} + {(y - k)}^{2} = {r}^{2} \\ {r}^{2} = 36 \\ \huge \red{ \boxed{r = 6 \: units}}$

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3 years ago

What is the solution 2.8y + 6 + 0.2y = 5y – 14

Alborosie

The answer to the question

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4 years ago