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solmaris [256]
3 years ago
11

Simplify the expression -3(x+3x. What is the simplified expression in standard form?

Mathematics
1 answer:
Morgarella [4.7K]3 years ago
4 0

Answer:

- 3(x + 3x) \\  - 3x - 9x =  - 12x \\ the \: answer =  \:  - 12x

please give brainliest

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What is the volume of the pyramid in the diagram?<br> 25 cm<br> h = 15 cm<br> 15 cm<br> 20 cm
charle [14.2K]

Answer:the answer is 2,500 cm^3

Step-by-step explanation:

4 0
4 years ago
What does interior angle A of the polygon in the figure equal? A. 110 B. 150 C. 230 D. 100
Delvig [45]
Sum of <span>Interior Angles with n = 6</span>
(n-2) × 180° = 4 x 180 = 720

A = 720 - (50+100-120-110 - 230)
A = 110

answer is A. 110
5 0
3 years ago
A deck of cards contains 10 black cards and 10 red cards. The first card drawn is not replaced before drawing the second card. W
Virty [35]
<h3>Answer:  9/38</h3>

Reason:

There are 10 red cards out of 10+10 = 20 total.

10/20 = 1/2 is the probability of selecting a red card.

If the red card is not put back (i.e. "no replacement"), then the chances of getting another red card is (10-1)/(20-1) = 9/19

Multiply the two fractions mentioned to get the final answer.

(1/2)*(9/19) = (1*9)/(2*19) = 9/38

3 0
2 years ago
Read 2 more answers
Find the weekly gross wages for a person who works 55 hours a week at $16 hourly with time and a half overtime for any hours ove
sergiy2304 [10]

Answer:

1000$

Step-by-step explanation:

55 = 40 hours + 15 Overtime hours

40×16 = 640$

16$×1.5 = 24$ an HR for overtime ( time and a half = 1.5)

24$ × 15 Overtime hours = 360$

640+360 = 1000$ gross

then come taxes

4 0
2 years ago
A group of health care providers consists of 4 doctors, 3 dentists, and 5 nurses. How many combinations of 2 health care provide
Paraphin [41]

The number of combinations of 2 health care providers of different types possible are 47.

<u>Explanation:</u>

<u></u>

Doctors = 4

Dentists = 3

Nurses = 5

combinations of two different health care providers = ?

Combination would be = ⁴C₁ X ³C₁ + ³C₁ X ⁵C₁ + ⁴C₁ X ⁵C₁

ⁿCₐ = n! / ( n - a )!  X a!

So on calculating the combination we get,

= 4 X 3 + 3 X 5 + 4 X 5

= 12 + 15 + 20

= 47

Therefore, the number of combinations of 2 health care providers of different types possible are 47.

6 0
4 years ago
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