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photoshop1234 [79]
3 years ago
5

Please please please tell the answer​

Mathematics
2 answers:
OlgaM077 [116]3 years ago
8 0

Answer:

a. 0

b. 4^1

c. 14

d. 8

Step-by-step explanation:

inna [77]3 years ago
3 0

Answer:

Step-by-step explanation:

a^{m}*a^{n}=a^{m+n}\\\\\frac{a^{m}}{a^{n}}=a^{m-n}\\\\(a^{m})^{n}=a^{m*n}\\\\a) 3^{5}*3^{x} = 3^{3}*9=3^{3}*3^{2}\\\\ 3^{5+x} =3^{3+2}

Compare the exponents,

5 +x = 5

     x = 5-5

      x = 0

b) \frac{4^{x}*4^{8}}{4^{2}}=(4^{7})^{1}\\\\4^{x+8-2}=4^{7*1}\\4^{x + 6}=4^{7}

Compare the exponents,

x +6 = 7

    x = 7-6

    x = 1

c)\frac{a^{8}*a^{5}}{a^{2}}=\frac{a^{x}}{a^{2}}\\\\a^{8+5-2}=a^{x-2}\\\\a^{11}=a^{x-2}

Compare the exponents,

x - 2 = 11

     x = 11+2

    x = 13

d)\frac{(5^{3})^{x}}{5^{6}}=5^{10}*5^{8}\\\\5^{3x-6}=5^{10+8}\\\\5^{3x-6}=5^{18}

Compare the exponents,

3x -6= 18

3x = 18 + 6

3x = 24

  x = 24/3

x = 8

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Masteriza [31]

Answer:

m=3

Step-by-step explanation:

-4m+7= -5

Combine like terms.Put +7 on other side.

-4m= -5-7

-4m= -12

It's -4 times m = -12 right ?

So the answer is m=3 because m= -12/-4

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2 years ago
Neo could choose from 3 different pants, 5 different shirts, and 4 sweaters. How many different combinations of 1 pant, 1 shirt
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To answer you do 5 times 4 times 3 to get 60
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A train leaves boston and travels toward its destination at a speed of 60 mph. One hour later, an express train leaves Boston an
Margarita [4]

Taking into account the supplied speeds, Boston is from the destination to:

  • 240 miles

<h3>Calculation of the distance between Boston and Place of Destination</h3>

To identify the distance between Boston and the destination of the trains, it must be remembered that the <u>speed</u> mentioned for each one is a reference to the distance traveled per hour, therefore, after each hour, each train will travel :

  • Regular train: 60 miles
  • Express train: 80 miles

According to the information given, when the express train leaves, the regular train has a 60-mile lead, which is getting shorter hour by hour because the express train travels 20 miles per hour more than the normal train.

Therefore, in <u>three hours</u>, the express train would catch up with the regular train, calculating the distance thanks to the speed formula:

  • Speed =\frac{Distance}{Time}

And clearing the distance:

  • Distance=Speed*Time
  • Distance=80\frac{miles}{hour}*3hours
  • Distance=240miles

Therefore, the destination would be <u>240 miles</u> from Boston, which would take four hours by regular train and three hours by express train.

If you want to learn more about Mathematics, you can visit the following link: brainly.com/question/24600056

3 0
2 years ago
Priya reads for 2 hours at 55 pages per hour. Then, she reads 1.5 hours at 30 pages per hour. How many total pages does she read
Evgen [1.6K]

Answer:

155 pages

Step-by-step explanation:

55*2+30+15=155

Hope this helps :)

3 0
3 years ago
The height of a rocket a given number of seconds after it is released is modeled by h (t) = negative 16 t squared + 32 t + 10. W
vaieri [72.5K]

Answer:The number of seconds after rocket is released

Step-by-step explanation:

Given

The height of  a rocket after it is released is modeled by

h\left ( t\right )=-16t^2+32t+10

Here t represent the number of seconds after the rocket is released.

Initial velocity can also be determined by this equation by differentiating the h\left ( t\right ) w.r.t time

\frac{\mathrm{d}h(t)}{\mathrm{d} t}=-32t+32

at t=o

\frac{\mathrm{d}h(t)}{\mathrm{d} t}=32

thus initial velocity will be 32 units/s

4 0
3 years ago
Read 2 more answers
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