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Alik [6]
3 years ago
12

Solve this system of equations. 2x + 2y + 7z = -1 2x + y + 2z = 2 4x + 6y +z = 15

Mathematics
1 answer:
saw5 [17]3 years ago
3 0

Answer:

x =1

y = 2

z = -1

Step-by-step explanation:

I Hope it helps. Please if you need any clarification, let me know .

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alexandr1967 [171]

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2 years ago
What is the slope of the line?
serg [7]

Answer:

i hated iready xD the answer should be 2

Step-by-step explanation:

if you use ride over run the rise would be 2 and the run is 1 \frac{2}{1} = 2

4 0
3 years ago
Read 2 more answers
87.6564 to DP Please help me, thanks
kirill115 [55]
<span>1.       </span><span>DP , you mean decimal points?
87.6564 is already written in decimals points.
it is a combination of a whole number and a decimal points.
=> 87 is the whole number where 8 is tens and 7 is the ones.
=> 6564 is the decimal numbers where 6 next to the decimal point is tenths, 5 is hundredths, 6 is the thousandths and 4 is the ten thousandths.
When you round this number to its nearest tenths, it becomes 87.7</span>



5 0
2 years ago
Please help!! (please don’t reply if you’re just going to say “ don’t know “ etc please and thank you)
Nastasia [14]

Answer:

a = -1 , b = 4 , c = 3 , d = 1

Step-by-step explanation:

The general rules of exponent:

1) \ a^m * a^n = a^{m+n}\\2) \ a^m / a^n = a^{m-n}\\3) (-1)^m = 1 \ (if \ m \ is \ +) and \ = \ -1 \ (if \ m \ is \ -)

===================================================

Given:

(-xy)^3 (xz) =ax^by^cz^d

The right hand side = (-xy)³ (xz) = (-1)³ x³ y³ x z = (-1) x⁴ y³ z

Comparing the right hand side with the left hand side

∴ a = -1

∴ b = 4

∴ c = 3

∴ d = 1

8 0
2 years ago
The vertices A(-2,-1), B(-3, 2), C(-1, 3), and D(0, 0) form a parallelogram. The vertices A'(-1, -2), B'(2, -3), C'(3,-1),
attashe74 [19]

Answer:

A is correct.

Step-by-step explanation:

The rule for this transformation is that (x,y) will become (y,x) if it flips over y=x OR the y-axis and the x-axis.

5 0
2 years ago
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