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Naddika [18.5K]
4 years ago
14

This is hard for me :(

Mathematics
1 answer:
Luden [163]4 years ago
8 0

Remark

A

You can do the same thing with a program called Desmos. Using this program, I've put A and B (the graphs) in Desmos and attached it to this Answer.

You could just do the same with your graphing calculator if you have one.

The problem is that my graphing calculator won't draw the blue line which is x = - 2

So go to Desmos and put in 2 graphs. the first one is y = - 1/2 x + 3 in red

The second is x =- 2. These are entered on the left of Desmos.

The blue line is x = - 2. You notice that the intersect point is (-2,4). Run your finger straight across until you hit 4. That's all you have to do for the A part.

B

The question has 3 blanks. The first 2 come from the question directions to see if you read those directions. Always a good idea to do that.

first blank  is x = - 2

second blank is x = - 2

Third blank is - 7

The red line is y = 3/2 x - 4

The blue line is x = -2

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In statistics, the 68–95–99.7 rule, also known as the empirical rule, is a shorthand used to remember the percentage of values that lie within a band around the mean in a normal distribution with a width of two, four and six standard deviations, respectively; more accurately, 68.27%, 95.45% and 99.73% of the values lie .

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Tina's age is 4 years less than 3 times her niece's age. If her niece's age is x years, which of the following expressions best
zubka84 [21]
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Read 2 more answers
For brainiest:):):):):):)
eimsori [14]
#1. Step one) we set find what we can multiply by 5 to get 20, so we divide 20 by 5.
20/5 = 4
Step two) we multiply the bottom denominator (8) by 4
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Answer : 20/32
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14/7 = 2
Step two) divide 10 by 2
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Step three) replace z with 5
Answer) 7/5
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Step two) divide 21 by 3
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The height of a cylinder is 8 centimeters. The circumference of the base of the cylinder is 14 pi. What is the measurement of th
timurjin [86]

Answer:

15

Step-by-step explanation:

3 0
3 years ago
121. Nina has just taken out a car loan for $12,000. She will pay an annual interest rate of 3% through a series of monthly paym
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Answer:

(1.0025ⁿ)² + 3.7124×(1.0025ⁿ) - 5.3124 = 0

Step-by-step explanation:

Nina will have saved the enough money to pay off the remaining balance on the loan when the functions are the same. So

f(x) = g(x)

86248 - 74248(1.0025)ⁿ = 20000(1.005)ⁿ - 20000

we sum 20000 on each side of the equation

106248 - 74248(1.0025)ⁿ = 20000(1.005)ⁿ

then we divide by 2000 each side of the equation

5.3124 - 3.7124(1.0025)ⁿ = 1.005ⁿ

the square root of 1.005 is aproximately 1.0025, so

1.005 ≈ 1.0025²

5.3124 - 3.7124(1.0025)ⁿ = (1.0025²)ⁿ

Since (1.0025²)ⁿ = 1.0025²ⁿ = (1.0025ⁿ)² we can write:

(1.0025ⁿ)² + 3.7124(1.0025ⁿ) - 5.3124 = 0

7 0
3 years ago
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