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murzikaleks [220]
3 years ago
6

In a bag of 100 ballons, 12 are red and 13 are green. What fraction of the balloons in the bag are not red or green?

Mathematics
1 answer:
mamaluj [8]3 years ago
7 0
3/4 I hope this helps :)
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How do you solve the equation 2cos^2 - cosx = 0 for all solutions?
exis [7]

Answer:

<em>π/2 and π/3</em>

Step-by-step explanation:

Given the equation 2cos²x - cosx = 0, to find the solution to the equation, we will follow the following step.

let P = cosx

The equation becomes 2P²-P = 0

P(2P-1) = 0

P = 0 and 2P-1 = 0

P= 0 and P = 1/2

Since P = cosx

cosx = 0 and cos(x) =  1/2

If cos(x) = 0

x = cos⁻¹0

x = 90⁰

x = π/2

If cos(x) = 1/2

x = cos⁻¹1/2

x = 60⁰

x = π/3

<em>Hence the solutions to the equation are π/2 and π/3.</em>

7 0
3 years ago
Need answer has soon has possible no need to explain
Anna71 [15]

Answer:

Its 4 and -4 :)

Step-by-step explanation:

3 0
3 years ago
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At the train station, the cost for parking is based on an hourly fee. Patrons that park for 2 hours or less are charged at the s
Aleksandr-060686 [28]

Answer:

96

Step-by-step explanation:

6 0
2 years ago
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What is the x-intercept of the line with this equation 13x+y=−15 ? Enter your answer in the box. ( , 0)
Nastasia [14]

Answer:  The required x-intercept of the given line is \left(-\dfrac{15}{13},0\right).

Step-by-step explanation:  We are given to find the x-intercept of the line with the following equation :

13x+y=-15~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(i)

We know that

x-intercept of a line is a point on the line where the line crosses the x-axis, that is y co-ordinate is 0.

Substituting y = 0 in equation (i), we get

13x+y=--15\\\\\Rightarrow 13x+0=-15\\\\\Rightarrow 13x=-15\\\\\Rightarrow x=-\dfrac{15}{13}.

Thus, the required x-intercept of the given line is \left(-\dfrac{15}{13},0\right).

4 0
3 years ago
The area of a rectangle with width x and length 5x is 5x2. What does the coefficient 5 mean in terms of the problem?
ludmilkaskok [199]

Answer:

The length is 5 times the width

Step-by-step explanation:

Let

W ----> the width of the rectangle

L ----> the length of the rectangle

we know that

The area of rectangle is equal to

A=LW

In this problem we have

L=5x ----> equation A

W=x ----> equation B

substitute equation B in equation A

L=5W

therefore

The length is 5 times the width

8 0
3 years ago
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