2 years ago

X + 2y + 5z = -17 2x – 3y + 2z = -16 3x + y - z = 3

Mathematics

1 answer:

Tatiana [17]2 years ago

8 0

Answer:

first one : x=−2y−5z−17

2nd one: x= 3 /2 y−z−8

3rd one: x= −1 /3 y+ 1 /3 z+1

Step-by-step explanation:

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Find the number that makes the ratio equivalent to 1:8. 7:__

kvasek [131]

Answer:

Step-by-step explanation:

1:8= 7:?

1*?=7

/1 /1

1*7=7

8*7=56

1:8 = 7:56

4 0

2 years ago

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HELP 35) Find the measure of line segment WV. A) 3 B) 4 C) 5 D) 6

frozen [14]

Step-by-step explanation:

secants originating from the same point have the same relative length relationship :

outside part × sum of outside and inside parts

is the same for every secant from the same point.

so,

5×(7+5) = 6×(2x-8+6) = 12x - 12

60 = 12x - 12

12x = 72

x = 6

WV = 2x - 8 = 2×6 - 8 = 12 - 8 = 4

so, B is correct.

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1 year ago

Calculate: 462 grams(g)=____milligrams (mg)

egoroff_w [7]

Answer:

462 000mg

Step-by-step explanation:

1gram = 1000milligrams

Hence...462 grams...,

; 462 × 1000 = 462 000mg

3 0

2 years ago

Ik this is easy but i forgot how to do it help

REY [17]

Answer:

Step-by-step explanation:

4+3= 7

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(since they both have the variable "x" we can combine them both)

have a good day! <3

8 0

2 years ago

A toy rocket is launched straight up into the air with an initial velocity of 60 ft/s from a table 3 ft above the ground. If acc

alexdok [17]

The equation is:
h ( t ) = - 16 t² + 60 t + 3
The toy rocket will reach the ground when: h ( t ) = 0
- 16 t² + 60 t + 3 = 0
$t _{12} = \frac{-60+/- \sqrt{3600+192} }{-32}$
t 1 = - 0.05
t 2 = 3.8
Answer:
C ) 3.80 s

3 0

2 years ago