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Scilla [17]
3 years ago
8

I NEED SOMEONE TO DO ALGEBRA 2 CLASS FOR ME I WILL PAY $80

Mathematics
2 answers:
Alina [70]3 years ago
8 0

Answer:

BRUH

Step-by-step explanation:

cluponka [151]3 years ago
4 0
Tell em to bring me my money
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A homeowner must reduce the use of his homes electricity . the home currently consumes 25.7 kwh (kilowatt hours) of electricity
tigry1 [53]
Given:
25.7 kwh of electricity per day.
must reduce 20%

25.7 kwh * 20% = 5.14 kwh   * amount of electricity to be reduced.
25.7 kwh - 5.14 kwh = 20.56 kwh * net of reduced electricity

The homeowner will use 20.56 kwh after reduction of 20%.

8 0
4 years ago
1. A box of 80 coins, consisting of only nickels and dimes, is worth 7 dollars and 80 cents. Find the number of nickels.
RideAnS [48]

Answer:

  1. 4 nickels
  2. 60 mph

Step-by-step explanation:

1. If all were dimes, the value would be $8.00. The value is actually $0.20 less than that. Replacing a dime by a nickel decreases the value by $0.05, so there must be $0.20/$0.05 = 4 nickels.

2. The total of the two speeds is the rate of closure: (420 mi)/(4 h) = 105 mi/h. The speed of the second car is found by subtracting the speed of the first car from this total:

  105 mph - 45 mph = 60 mph

5 0
3 years ago
The cost of a DVD box set increase from 30 to 35 a student says that this represent a 5% increase in the price explain the stude
tamaranim1 [39]
So it went from 30 to 35, or 5 bucks, if we take 30 to be the 100%, what is 5 off of it in percentage?

\bf \begin{array}{ccll}
amount&\%\\
\text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\
30&100\\
5&p
\end{array}\implies \cfrac{30}{5}=\cfrac{100}{p}\implies p=\cfrac{5\cdot 100}{30}
8 0
3 years ago
To compare their bike times, the friends created a table that shows the difference between each person's time and the average bi
blagie [28]
-1.8, -1.25, 1, 1 2/5, 1 7/10
3 0
3 years ago
Read 2 more answers
Mai wants to make an open top box by cutting out corners of a square piece of cardboard and folding up the sides. The cardboard
Bumek [7]

Answer:

V(x)=(4x^{3}-40x^{2}+100x)\ cm^3

The domain for x is all real numbers greater than zero and less than 5 com

Step-by-step explanation:

<em><u>The question is</u></em>

What is the volume of the open top box as a function of the side length x in cm of the square cutouts?

see the attached figure to better understand the problem

Let

x -----> the side length in cm of the square cutouts

we know that

The volume of the open top box is

V=LWH

we have

L=(10-2x)\ cm

W=(10-2x)\ cm

H=x)\ cm

substitute

V(x)=(10-2x)(10-2x)x\\\\V(x)=(100-40x+4x^{2})x\\\\V(x)=(4x^{3}-40x^{2}+100x)\ cm^3

Find the domain for x

we know that

(10-2x) > 0\\10> 2x\\ 5 > x\\x < 5\ cm

so

The domain is the interval (0,5)

The domain is all real numbers greater than zero and less than 5 cm

therefore

The volume of the open top box as a function of the side length x in cm of the square cutouts is

V(x)=(4x^{3}-40x^{2}+100x)\ cm^3

5 0
3 years ago
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