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BartSMP [9]
3 years ago
14

Use the quadratic formula to solve the equation to the exact value or round to two decimal places.

Mathematics
1 answer:
lys-0071 [83]3 years ago
6 0
First set everything to 0.
{x}^{2}  + x - 5
Giving you A= 1 , B= 1 and C= -5
Then input everything into the quadratic formula and either solve by hand or use a calculator.
Note exact values are found by hand, decimals are found using a calculator.

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Qbjsksnnfkkdnnwnnsiodnnjfkjbbskkxkkdn
iris [78.8K]

Answer:

There are 25 students in the class.

Step-by-step explanation:

Since we know the percentage of students who want an ice cream party is 20%, and 5 students want an ice cream party, we know that:

\frac{5}{S}=0.2

, where S is the total amount of students. We can then solve for S:

\frac{5}{S}=0.2 Given equation

5=0.2*S Multiply by S

25=S Divide by 0.2

Therefore, there are 25 students in the class.

7 0
3 years ago
Read 2 more answers
Help pleaseee. 20 points!
Alja [10]

Answer:

1. always true

2. always true

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Step-by-step explanation:

6 0
3 years ago
Write and solve a real-world problem that represents the following one-variable inequality.
serg [7]
Hello there! An example problem for this could be:
Emile is looking for a cell-phone plan. His two options are one that costs $40 up front, and costs $0.01 per text, represented by x. The second one is 15 dollars up front and costs $0.06 for each text message. Emile figures that for the first package he has to send 500 texts or more to make it less than the second one. 
7 0
3 years ago
Which of these numbers is prime? large 11, 15, 21, 27, 56
gizmo_the_mogwai [7]
11 is the only prime number. It's only multiples are 1 and itself
6 0
3 years ago
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Can someone help me with the middle question?
kotegsom [21]
You should do 1.0 divided by 7 and the answer would be 7
7 0
3 years ago
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