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Alex777 [14]
3 years ago
7

Hey please answer the questions on attachment, thank you very much- i need it in 10 minutes and am completely clueless.

Mathematics
2 answers:
nevsk [136]3 years ago
7 0

Answer:

5x+17

Step-by-step explanation:

2(x+7) + 3(x+1)

  1. Distribute(Expand) -> 2x+14 + 3x+3
  2. Simplify by combining like terms -> 5x+17
Elden [556K]3 years ago
4 0

Answer:

5x+17

Step-by-step explanation:

You distribute the 2 and 3 2(x)+2(7)+3(x)+3(1)

so 2x+14+3x+3 combine like terms

5x+17

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In the figure below, BD and EC are diameters of circle P.
Zinaida [17]

Answer: 333 degrees

Step-by-step explanation:

8 0
3 years ago
A kite flier wondered how high her kite was flying. She used a protractor to measure an angle of 15∘ from level ground to the ki
Nataly [62]

Answer:

12.9 yd

Step-by-step explanation:

It helps if you draw a triangle. Draw a horizontal segment. That is the ground. Now at the left end start a new segment that goes up to the right at approximately 15 degrees until it its other endpoint directly above the right endpoint of the horizontal segment. Connect these two endpoints. The vertical side on the right shows the height of the kite. The hypotenuse is the string.

For the 15-deg angle, the height of the triangle is the opposite leg, and the string is the hypotenuse. The trig ratio that relates the opposite leg tot he hypotenuse is the sine.

\sin A = \dfrac{opp}{hyp}

\sin 15^\circ = \dfrac{h}{50~yd}

(50~yd)\sin 15^\circ = h

h = (50~yd)(0.2588)

h = 12.9~yd

6 0
3 years ago
1. What is the theoretical probability that the family has two dogs or two cats?
gogolik [260]

let dogs be heads. Let cats be tails. A coin has two sides, in which you are flipping two of them. Note that there can be the possible outcomes  

h-h, h-t, t-h, t-t.  

How this affects the possibility of two dogs & two cats. Note that there are 1/2 a chance of getting those two (with the others being one of each), which means that out of 4 chances, 2 are allowed.  

2/4 = 1/2  

50% is your answer

Heads represents cats and tails represents dogs. There is two coins because we are checking the probability of two pets. You have to do the experiment to get your set of data, once you get your set of data, you will be able to divide it into the probability for cats or dogs. To change the simulation to generate data for 3 pets, simply add a new coin and category for the new pet.

Hope this helps you out!

4 0
3 years ago
You are working on a banner for Friday's pep rally. The length of the banner is 3 times the width. The length is 15 feet. What i
maw [93]

Answer:

5 feet

Step-by-step explanation:

15/3 = 5

5 0
3 years ago
Read 2 more answers
- A butcher combined 100 lb of hamburger that cost $1.75 per pound with 40 lb of hamburger
slamgirl [31]

Answer:

$315

Step-by-step explanation:

1.75 x 100 = $175

3.50 x 40 =$140

175 + 140 = $315

8 0
3 years ago
Read 2 more answers
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