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3 years ago

There are 475 students and teachers going on a field trip a school bus holds 78 people how many buses are needed for the trip

1 answer:

7 0

7 is the answer, you have to divide 475 by 78 and you get 6.08974358974359 but you round it up to 7 to make sure you have enough buses

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Zoe is starting her own snow plowing business. Zoe thinks she will do a better job than her competitors, so she thinks she can c

german

Answer:

$442.75

Step-by-step explanation:

$11/hour x 40.25 hours/week=$442.75

8 0

3 years ago

PLS PLS PLS HELP I WILL MARK BRAINLIEST TO THE FIRST PERSON TO ANSWER !!!!!!!

elena-s [515]

Answer:

7. 30%

8. 70%

Step-by-step explanation:

not sure if its correct too

8 0

3 years ago

4^5*7^10 RAISED TO SINGLE POWER

Westkost [7]

<h3>Answer: 4^15</h3>

Explanation:

The rule used is

a^b*a^c = a^(b+c)

Basically you add the exponents. This only applies if the bases are both the same. In this case, they're both 4 so the rule works out.

Using the rule, we get

a^b*a^c = a^(b+c)

4^5*4^10 = 4^(5+10)

4^5*4^10 = 4^15

8 0

3 years ago

An object has a constant acceleration of 30 ft/sec2, an initial velocity of -10 ft/sec, and an initial position of 4 ft. Find th

Pavel [41]

Let $a(t),v(t),s(t)$ be the acceleration, velocity, and position functions, respectively. Then

$v(t)=s'(t)$
$a(t)=v'(t)=s''(t)$

Since the acceleration is a constant 30 ft/s^2, you have

$a(t)=s''(t)=30$
$\displaystyle\int s''(t)\,\mathrm dt=\int30\,\mathrm dt$
$\displaystyle s'(t)=v(t)=30t+C_1$

You're told that the initial velocity is $v(0)=-10$ , so you get

$-10=30(0)+C_1\implies C_1=-10$

Now $s'(t)=30t-10$ . Integrating once more, you find

$\displaystyle\int s'(t)\,\mathrm dt=\int(30t-10)\,\mathrm dt$
$s(t)=15t^2-10t+C_2$

and since $s(0)=4$ , you get

$4=15(0)^2-10(0)+C_2\implies C_2=4$

which means the exact position function is

$s(t)=15t^2-10t+4$

7 0

4 years ago

Place a check mark next to each expression that is equivalent to - 2/3

12345 [234]

What are the expressions

5 0

3 years ago

Read 2 more answers