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3 years ago

15

Need to know how to graph this example y= -2x + 25. I know that y=mx+b. Just confused on how to get what they call plug in. Can

someone explain please. Example how do I know x= 0 and X= 1

1 answer:

Artist 52 [7]3 years ago

7 0

Here's an example
Y=5x + 10
if x is equal to 5 you would make it
Y=5(5)+10.
basically, just replace the x with what it's equal to.

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The heat in the house is set to keep the minimum and maximum temperatures (in degrees Fahrenheit) according to the equation |x –

Viktor [21]

Answer: 68.5°F and 76.5°F

Step-by-step explanation:

Given: The heat in the house is set to keep the minimum and maximum temperatures (in degrees Fahrenheit) .

According to the given absolute inequality equation, where x is the temperature of house

|x – 72.5| = 4

it gives x – 72.5 ≥ -4 and x – 72.5 ≤ 4

⇒ -4 ≤ x – 72.5 ≤ 4

Adding 72.5 on both the sides, we get

⇒ -4+72.5 ≤ x ≤ 4+72.5

⇒68.5 ≤ x ≤ 76.5

Thus the minimum temperature is 68.5° F and the maximum temperature is 76.5° F.

7 0

3 years ago

Read 2 more answers

joja [24]

Answer:

Simple interest = $36

Compound interest = $48.96

It's better to invest $600 at 4% compounded monthly for 2 years as it's giving us more profit.

Step-by-step explanation:

Simple interest is calculated on the principal amount of a loan. Compound interest is calculated on the sum of principal amount and accumulated interest of previous periods.

Simple interest = $\frac{P R T}{100}$

Compound interest = $P(1+\frac{R}{100} )^T-P$

Here, P denotes principal amount, R denotes rate of interest, T denotes time.

Given: $600 invested at 3% simple interest for 2 years, $600 invested at 4% compounded monthly for 2 years

To find: Simple interest and compound interest.

Solution:

Take P=600, R=3% and T=2 years

Using the formula of simple interest mentioned above,

Simple interest = $\frac{600\times 3\times 2}{100}=36$

So, interest earned is $36

Take P=600, R=4% and T=2 years

Using the formula of compound interest mentioned above,

Compound interest = $600\left ( 1+\frac{4}{100} \right )^2-600$

= $600\left ( 1+\frac{1}{25} \right )^2-600$

= $600\left [ \left ( \frac{26}{25} \right )^2-1 \right ]$

= $600\left ( \frac{676}{625}-1 \right )$

= $600\times \frac{51}{625}=48.96$

So, interest earned is $48.96

It's better to invest $600 at 4% compounded monthly for 2 years as it's giving us more profit.

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Juliette [100K]

Answer:

A) 45°

Step-by-step explanation:

A) 45°

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