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kiruha [24]
3 years ago
11

Eva is showing her work in simplifying (7.3 − 7.2) − 3.8 + 3.7. In which step did Eva make an error?

Mathematics
1 answer:
I am Lyosha [343]3 years ago
5 0

Answer:

She made the mistake in step 2 when she applied the commutative property. That was unnecessary

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$
Pepsi [2]

Answer:q = - 9 and r = - 10

Step-by-step explanation:

since g(x) is divided by (x - 1) with remainder - 12, then (1) = 4(1)³ + q(1)² + r + 3 = - 12, that is 4 + q + r + 3 = - 12

q + r + 7 = - 12 ( subtract 7 from both sides )

q + r = - 19 → (1)

Since (x - 3) is a factor of g(x), then

g(3) = 4(3)³ + q(3)² + 3r + 3 = 0, that is

108 + 9q + 3r + 3 = 0

9q + 3r + 111 = 0 ( subtract 111 from both sides )

9q + 3r = - 111 → (2)

The 2 equations to be solved simultaneously are (1) and (2)

Multiply (1) by - 3

- 3q - 3r = 57 → (3)

Add (2) and (3) term by term to eliminate r

6q = - 54 ( divide both sides by 6 )

q = - 9

Substitute q = - 9 into (1)

- 9 + r = - 19 ( add 9 to both sides )

r = - 10

Hope the helps!!! ❤️

4 0
3 years ago
Which statement describes the congruent triangles?
SSSSS [86.1K]

Answer:

Im confused

Step-by-step explanation:

On it too

3 0
4 years ago
Read 2 more answers
Pls help I will give u brainlyist​
zimovet [89]

Answer:

I remember it was Triangular prism or something

Step-by-step explanation:

2 triangles on top

and the sides with rectangle.

5 0
3 years ago
Which statement is true about the polynomial after it has been fully simplified? (See picture)
12345 [234]
I think it would be "It has 2 terms and a degree of 2", because the 3x^2y^2 and the -3x^2y^2 cancel out. Then, you're left with -5xy^2+2x^2.
In what remains, there are 2 terms, each with the highest degree of 2, so I would be led to believe A is your answer.
3 0
3 years ago
7.281 round to the nearest hundredth
dlinn [17]
The answer is 7.28. :D
8 0
3 years ago
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