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Sedaia [141]
2 years ago
15

Please help me with this problem!

Mathematics
1 answer:
BigorU [14]2 years ago
7 0

Answer:

You were already correct! Good job :)

Step-by-step explanation:

1) False

2) True

3) True

4) False

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(3x^2 + 2x -8) + (4x^2 -5x +6)
Tamiku [17]
Hello!

You can only add like terms

3x^2 + 4x^2 = 7x^2

2x + -5x = -3x

-8 + 6 = -2

The answer is 7x^2 - 3x - 2

Hope this helps!
4 0
3 years ago
A bag contains 9 marbles: 4 are green, 2 are red, and 3 are blue. Chris chooses a marble at random, and without putting it back,
Ivahew [28]

Answer:

1/12

Step-by-step explanation:

3/9 for the first

2/8 for the second

3/9= 1/3

2/8= 1/4

1/4 x 1/3= 1/12

4 0
3 years ago
A rectangular container measuring 20 inches long by 16 inches wide by 12 inches tall is filled to its brim with water. If 850 cu
makkiz [27]

The new height of the water is = 9.34 inches (approx)

Step-by-step explanation:

Given, a rectangular container measuring 20 inches long by 16 inches wide by 12 inches tall is filled to its brim with water.

Let the new height of water level be x inches.

The volume of the container = (20×16×12) cubic inches

                                               =3840  cubic inches

According to the problem,

3840 - (20×16×x) = 850

⇔3840 -320x = 850

⇔-320x =850-3840

⇔-320 x = -2990

\Leftrightarrow x =\frac{2990}{320}

⇔x = 9.34 inches

The new height of the water is = 9.34 inches (approx)

5 0
3 years ago
PLEASE HELP ME 100!!! POINTS A conjecture and the flowchart proof used to prove the conjecture are shown.
boyakko [2]

Answer:

Add the two angles: 43° + 47° = 90°.

Step-by-step explanation:

A right triangle has an angle that equals 90°. Complementary angles equal 90°. Therefore, if you add these two angles, you will know whether or not △ABC is a right triangle. Triangle △ABC is broken up into two angles, m∠ABD and m∠DBC. When the measures m∠ABD and m∠DBC are added together, they equal 90°, and thus, form a complementary angle.

Hope this helps,

♥<em>A.W.E.</em><u><em>S.W.A.N.</em></u>♥

4 0
3 years ago
Read 2 more answers
Lori is choosing a snack from a box containing 5 bags of pretzels , 4 bags of Trail Mix , and 9 bags of almonds .
Romashka-Z-Leto [24]
Im not sure what the question is asking but my guess would be c)18.
5 0
3 years ago
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