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harina [27]
2 years ago
9

Solve the equation: x^2+3x-7=0 give your answer to 2 decimal places

Mathematics
1 answer:
Kaylis [27]2 years ago
4 0

Answer:

x1 = 1.54

x2 = -4.54

Step-by-step explanation:

just use calculator

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= Solving a word problem with two unknowns using a linear... A washer and a dryer cost $650 combined. The washer costs $100 less
nikdorinn [45]

Answer:

Washer 225

Dryer 425

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7 0
2 years ago
there are 800 seats in the varsity theater. during regular preformances, all seats cost $12 each. It costs the owner $275 to pay
r-ruslan [8.4K]

Answer:

The correct answers are the following:

A) <u>P=12n-275 </u>

B) <u>124 </u>

C) <u>Decrease by $100 </u>

Step-by-step explanation:

A) <u>P=12n-275 </u> - Each person (n) pays $12, then the cost/expense ($275) is subtracted from the income to get the profit.

B) <u>1,213=12n-275</u>  - Plug in the value for P ($1,213).

1,488=12n  - Add $275 to both sides.

124=n  - Divide both sides by $12.

<u>n=124 </u> - This the number (n) of people that attended.

C) <u>P=12n-375 </u> - Change the value for expense to $375.

P=12(124)-375  - Plug in the value for n (124).

P=1488-375  - Simplify and find the difference.

<u>P=1,113 </u> - This is your profit.

<u>1,113-1,213=-100 </u> - $100 reduction/decrease of profit (or -$100 to profit)

Hope this helps!

6 0
2 years ago
Which number is NOT written in scientific notation? ​
Thepotemich [5.8K]
The last one is not scientific notation because the 25.67 is greater than 10
5 0
2 years ago
Fill in the missing terms of the arithmetic sequence,<br> -7. 1,5-13
LenKa [72]

Answer:

-3, 9

Step-by-step explanation:

The constant is 4.

7 0
3 years ago
3<br> 1<br> 5<br> ×<br> 1<br> 1<br> 8<br> Give your answer as a mixed number in its simplest form.
Inga [223]

Answer:

is it saying 3 1/5 * 1 1/8?

Step-by-step explanation:

4 0
3 years ago
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