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irakobra [83]
4 years ago
7

Someone please help :(( : write the exponential expression using repeated multiplication. then evaluate it

Mathematics
1 answer:
Lapatulllka [165]4 years ago
6 0
Remark
Anything to the 0 is one. 15^0 = 1 It's an odd looking fact but it is true.

8^3 means 8*8*8

8 * 8 = 64
64 * 8 = 512

Answer: 512 + 1 = 513
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Alicia drives her car 287.5 miles in 5 hours. What is the constant of proportionality that relates the total number of miles, y,
Sphinxa [80]

Answer:

  57.5

Step-by-step explanation:

The constant of proportionality is "k" in the equation ...

  y = kx

It can be found from values of x and y using ...

  k = y/x

For the given values, it is ...

  k = (287.5 mi)/(5 h) = 57.5 mi/h

The constant of proportionality relating miles to hours is 57.5.

5 0
4 years ago
A train leaves at 14:56 and arrives at 16:43. It travelled at an average speed of 135 km/h. How far did it travel? Give your ans
Firlakuza [10]

Answer:

240.8

Step-by-step explanation:

→ Calculate time taken

16:43 - 14:56 = 1 hour and 47 minutes

→ Write the speed formula and make distance the subject

Speed = Distance ÷ Time ⇔ Distance = Speed × Time

→ Convert 1 hour and 47 minutes into decimal format

1.78333333 or  1\frac{47}{60}

→ Substitute values into formula

135 ×  1\frac{47}{60}  = 240.75

8 0
3 years ago
Clair has250 pennies some pennies are in a box the rest are in her bankthere are more then 100 pennies in each place how many pe
9966 [12]

Answer:

In each place there must be more 100 pennies, but as the total 250 pennies, there are several ways that the money is distributed.

Because there may be 101 pennies in the box and 149 pennies in the bank, but it can also be the opposite; in the box 149 pennies and in the bank 101 pennies.

Therefore, there are many options to answer the question, as long as it is met that there are more than 100 pennies in one place.

8 0
3 years ago
Abigail drew 12 hearts and 28 circles. What is the ratio of circles to hearts
Ne4ueva [31]
28 : 12
or in reduced form
7 : 3
6 0
3 years ago
Explain how you know these figures are similar​
sergeinik [125]

Answer:

because of them is bigger than the other one so that means its differ but it has the same length

Step-by-step explanation:

7 0
3 years ago
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