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sladkih [1.3K]
3 years ago
9

Round 228 to the nearest 100

Mathematics
1 answer:
kari74 [83]3 years ago
8 0
200 to the nearest hundred. The answer is 200
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Solve by substitution-5x+4y=22 x - 3y = 0A) No solution.
zepelin [54]
We want to use substitution to solve
-5x + 4y = 22           (1)
 x - 3y = 0                (2)

From (2), obtain
x = 3y                      (3)
Substitute (3) into (1).
-5(3y) + 4y = 22
-15y + 4y = 22
-11y = 22
y = -2
From (3), obtain
x = 3y = 3*(-2) = -6

Answer: e. (-6, -2)
5 0
3 years ago
Which statements are correct about quadrilaterals?
Sauron [17]
The correct answers for this question would be A), B), and C) or the first, second, and third options.
4 0
3 years ago
(Look at the picture) help me
umka21 [38]

Answer:

i had this in rsm a long time ago, i think the answer(if it's an equation) should be:

6x + x = 7x

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Step-by-step explanation:

3 0
3 years ago
PLSSS HELPP I BEGG What is the solution to the system of linear equations graphed below?​
OleMash [197]

Answer:

No solution

Step-by-step explanation:

because the are parallel lines they never meet so they are inconsistent so there is no solution

8 0
3 years ago
Find all real solutions and show work: <br> 2x^3-3x^2+18x-27=0
Amiraneli [1.4K]

Given:

The given equation is

2x^3-3x^2+18x-27=0

To find:

All the real solutions.

Solution:

We have,

2x^3-3x^2+18x-27=0

It can be written as

x^2(2x-3)+9(2x-3)=0

(2x-3)(x^2+9)=0

Using zero product property, we get

(2x-3)=0 and (x^2+9)=0

2x=3 and x^2=-9

x=\dfrac{3}{2} and x=\pm\sqrt{-9}

We know that x=\pm\sqrt{-9} is an imaginary number because there is a negative sign under the square root.

Therefore, x=\dfrac{3}{2} is the only real solution of the given equation.

5 0
3 years ago
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