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ikadub [295]
2 years ago
6

The equation −3(4d+7.2)+2d=−2(6d−6.4)−70.9 represents the location of a scuba diver in feet, d, compared to sea level. Solve the

equation. Write the solution as an integer or decimal
Mathematics
1 answer:
Marat540 [252]2 years ago
8 0

Step-by-step explanation:

-3(4d + 7.2) + 2d = -2(6d - 6.4) - 70.9

-12d - 21.6 + 2d = -12d + 12.8 - 70.9

2d = 12.8 - 70.9 + 21.6 = -36.5

d = -18.25 ft

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A nursery has 10 tree seedlings to give out at 2 workshops. It wants to give out a minimum of 2 seedlings at each workshop. How
11111nata11111 [884]

We are given total 10 tree seedlings.

Number of workshops = 2.

Here order doesn't matters.

<em>When order doesn't matters we apply combination.</em>

We know formula of combination:

C(n,r) = \frac{n!}{r!(n-r)!}

For the given situation, we have

n=10 and r=2.

Plugging values in formula, we get

\frac{10!}{2!(10-8)!}  = \frac{10\times 9\times8!}{2!8!}

\frac{10 \times 9}{2} = \frac{90}{2} =45

<h3>Therefore, 45 different ways can the nursery give out seedlings.</h3>
5 0
3 years ago
4 to the 8th power divided by 4 to the 5th power
Natasha2012 [34]

Alright, 4 to the 8th power is 4x4x4x4x4x4x4x4 which ends up as 65,536.

4 to the 5th power is the same thing but with 5 4's and that is 1,024.

All you need to do now is 65,536/1,024 = 64.

Solved!  :D

6 0
4 years ago
Alaina colors 20% of the total shapes on her paper. She colors 10 shapes. Enter the number of shapes on Alaina's paper.
Mashutka [201]

Answer:

50

Step-by-step explanation:20*5=100 so 10*5=50

3 0
4 years ago
How do i do this<br> 5e+4&lt;3e-6
Nonamiya [84]

Answer:

e < -5

Step-by-step explanation:

5e + 4 < 3e - 6

Subtract 3e from the right side

2e + 4 < -6

Subtract 4 from the left side

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Divide both sides by 2

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6 0
3 years ago
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Alenkinab [10]
Add 2 to 3 and then your answer is x>5
5 0
3 years ago
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