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klemol [59]
3 years ago
10

Math Can someone please explain what I need to do here to find answer? Thanks

Mathematics
1 answer:
zmey [24]3 years ago
6 0

Answer:

C

Step-by-step explanation:

First of all their is an easier way solving this 2l/ + l^2

but how you need it is c because the base is 100 and each face is 40 how 10x8=80 80/2=40

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Use any method to estimate how much Joan earns in all working 6.75 hours for 2 days earning $15.70 per hour.show your work
alexdok [17]

Answer:

$ 211.95

Step-by-step explanation:

soooo your supposed to multiply 6.75hr and 15.70

and get 105.975

the multiply that by 2

answer: $211.95

8 0
3 years ago
Find the difference quotient <img src="https://tex.z-dn.net/?f=%5Cfrac%7Bf%28x%20%2B%20h%29%20-%20f%28x%29%7D%7Bh%7D" id="TexFor
AlladinOne [14]

Answer:

-2x - h - 3

Step-by-step explanation:

Step 1: Define

Difference Quotient: \frac{f(x+h)-f(x)}{h}

f(x) = -x² - 3x + 1

f(x + h) means that x = (x + h)

f(x) is just the normal function

Step 2: Find difference quotient

  1. <u>Substitute:</u> \frac{[-(x+h)^2-3(x+h)+1]-(-x^2-3x+1)}{h}
  2. <u>Expand and Distribute:</u> \frac{[-(x^2+2hx+h^2)-3x-3h+1]+x^2+3x-1}{h}
  3. <u>Distribute:</u> \frac{-x^2-2hx-h^2-3x-3h+1+x^2+3x-1}{h}
  4. <u>Combine like terms:</u> \frac{-2hx-h^2-3h}{h}
  5. <u>Factor out </u><em><u>h</u></em><u>:</u> \frac{h(-2x-h-3)}{h}
  6. <u>Simplify:</u> -2x - h - 3

8 0
3 years ago
Read 2 more answers
Shea and her best friend Kelly both babysit during the summer. Shea charges $4 per hour plus a $3 service fee, while Kelly charg
Evgen [1.6K]
6 hours 

The First hour- Shea made $7 and Kelly made $9.50
The Second hour- Shea made $11 and Kelly made $13
The third hour- Shea made $15 and Kelly made $16.50
The fourth hour- Shea made $19 and Kelly made $20 
The fifth hour- Shea made $23 and Kelly made $23.50
And the sixth hour- Shea made $27 and Kelly made $27 

Hope that was helpful
8 0
3 years ago
Solve for the indicated variable.
marta [7]

Answer:

Option (c) "r=\dfrac{q}{4c}-h"

Step-by-step explanation:

The given equation is :

q = c4(h + r)

We need to solve it for r.

Dividing both sides of the given equation by 4c.

\dfrac{q}{4c}=\dfrac{4c}{4c}(h+r)\\\\(h+r)=\dfrac{q}{4c}

Now, subtract h both sides of the equation.

h+r-h=\dfrac{q}{4c}-h\\\\r=\dfrac{q}{4c}-h

Hence, this is the required solution.

3 0
3 years ago
Convert 39°C to degrees Fahrenheit.
posledela

Given a temperature C in celsius, you can convert it to Fahrenheit by using the formula

F=32 + \dfrac{9C}{5}

In your case C=39, so you have

F = 32 + \dfrac{9\cdot 39}{5} = 32+70.2=102.2

6 0
3 years ago
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