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nata0808 [166]
3 years ago
14

Question 34.How can i start to solve?

Mathematics
1 answer:
ExtremeBDS [4]3 years ago
7 0

Pretty simple actually, you just take the number of cases given and multiply it by .20 or 20%, and subtract that number from 10,000, which is 8,000. Then you just keep multiplying the answers you get by .2, and subtract that number by the last answer you got.

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What is 90 is exponential form?<br> 2^__ * 3^__ * 5^__
Sloan [31]
90/2=45
45/3=15
15/3=5


90=2*3*3*5=2¹*3²*5¹
3 0
3 years ago
Use the intercepts of the following quadratic curve to find its graph.y = -1/2x^2 -3/2x+2
Solnce55 [7]

The correct graph is fourth option

Explanation:\begin{gathered} \text{The quadratic function:} \\ \text{y = }\frac{-1}{2}x^2\text{ - }\frac{3}{2}x\text{ + 2} \end{gathered}

Using the intercepts: we have x-intercept and y-intercept

To get x intercept, we will equate the function to zero. That is y = 0

\begin{gathered} 0\text{ = }\frac{-1}{2}x^2\text{ - }\frac{3}{2}x\text{ + 2} \\ mu\text{ltiply through by 2:} \\ 0=-x^2\text{ - 3x + 4} \\ x^2\text{ + 3x - 4 = 0} \\ x^2\text{ - x + 4x - 4 = 0} \\ x(x\text{- 1) +4(x - 1) = 0} \\ (x\text{ + 4)(x - 1) = 0} \\ x+4\text{ = 0 or x - 1 = 0} \\ x\text{ = -4 or x = 1} \end{gathered}

x intercepts are x = -4 and x = 1

This means the line will cross the x axis at two points: x = -4 and x = 1

To get y-intercept, we will equate x to zero:

\begin{gathered} \text{y = }\frac{-1}{2}(0)^2\text{ - }\frac{3}{2}(0)\text{ + 2} \\ y\text{ = 0 - 0 + 2} \\ y\text{ = 2} \end{gathered}

y-intercept = 2

This means the line will cross the y axis at y = 2

The correct graph is fourth option

8 0
1 year ago
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The mean is the average of the numbers, to calculate: add up all the numbers, then divide by how many numbers there are. The mean is 95
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3 years ago
Read 2 more answers
Help me. I will give brainliest to whoever answers the most questions. I don't need any explanation.
wlad13 [49]

Answer:

17. y=36 degrees

18. p=98

19. n= 380

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Step-by-step explanation:

5 0
3 years ago
Describe the possible lengths of the third side of the triangle given that the lengths of the other two sides are 12 feet and 18
Gennadij [26K]

Answer:

6 ft < L₃ < 30 ft

Step-by-step explanation:

To obtain the answer to the question given above, we must bear in mind that:

The sum of the length of two sides of any triangle is always greater than the 3rd length i.e

L₁ + L₂ > L₃

With the above information in mind, we can obtain the answer to the question given above as follow:

Length 1 (L₁) = 12 feet

Length 2 (L₂) = 18 feet

Length 3 (L₃) =..?

Case 1:

L₁ + L₂ > L₃

12 + 18 > L₃

30 > L₃

L₃ < 30 feet

Case 2:

L₁ + L₃ > L₂

12 + L₃ > 18

Collect like terms

L₃ > 18 – 12

L₃ > 6 feet

Thus,

6 feet < L₃

Combining case 1 and 2,we obtained:

6 ft < L₃ < 30 ft

Therefore, the possible Lenght of the 3rd side is : 6 ft < L₃ < 30 ft

8 0
3 years ago
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