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SVEN [57.7K]
3 years ago
9

-25 + 4(2x + 5) = -61

Mathematics
1 answer:
irina [24]3 years ago
3 0

Answer:

X= -7

Step-by-step explanation:

-25 + 8x +20 = -61

8x  -5 = -61

8x = -56

x = -7

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Explain why not all regular polygons will tessellate.
snow_tiger [21]

No other regular polygon can tessellate because of the angles of the corners of the polygons. In order to tessellate a plane, an integer number of faces have to be able to meet at a point. For regular polygons, that means that the angle of the corners of the polygon has to divide 360 degrees.

4 0
3 years ago
Amanda’s Training Continues…..Amanda is training to run a marathon. She must follow a strict schedule to make sure she is ready
Paladinen [302]

Based on her on training regiment, Amanda will be able to run 26 miles in the 25th week.

<h3 /><h3>What is the total number of miles Amanda will run every week?</h3>

Amanda will run 2 miles in the first week and then 1 less mile in the following week. Then 3 more miles in the week after.

Week 1 - 2 miles

Week 2:

= 2 - 1

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Week 3:

= 1 + 3

= 4 miles

Week 4:

= 4 - 1

= 3 miles

Week 5:

= 3 + 3

= 6 miles

From the given pattern, Amanda increase the number of miles ran by 2 miles every 2 weeks.

The number of miles ran every other week would therefore be:

Week 7 = 8 miles

Week 9 = 10 miles

Week 11 = 12 miles

Week 15 = 16 miles

Week 19 = 20 miles

Week 25 = 26 miles

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3 0
3 years ago
4. points 7th grade math<br><br><br><br> 19 = h/3 - 8
vesna_86 [32]

19 = h/3 - 8

add 8 to each side

19+8 = h/3 -8 +8

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8 0
3 years ago
Here are the records of two different sequences (A,B ) of a coin tossed eight times. A: T H H H H H H H B: H T T H T H H T If yo
ser-zykov [4K]

Answer: Sequence B is more probable than A.

Step-by-step explanation:

This two sequences are not equally probable. Sequence B is more probable than A due to the equal chances of getting head (H) and a tail (T). The probability of getting a head is equal to the probability of getting a tail which is 4/8 i.e 0.5

The sequence A is less probable because the head(H) occur more than tail (T). The probability of head occurring is almost a sure event i.e 1 which is not feasible.

6 0
4 years ago
Given the function f(x) = 2x + 5, what would the input be with an output of 21
Pepsi [2]

<u>Given</u><u> </u><u>:</u><u>-</u>

  • f(x) = 2x + 5

<u>To </u><u>Find</u><u> </u><u>:</u><u>-</u>

  • The input when output is 21 .

<u>Answer </u><u>:</u><u>-</u>

The given function is ,

  • f(x) = 2x + 5

Substitute f(x) = 21 ,

  • 21 = 2x + 5
  • 21 - 5 = 2x
  • 16 = 2x
  • 16/2=x
  • x = 8
8 0
3 years ago
Read 2 more answers
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