I need to know the answer is and the steps (extra points)

Mathematics

2 answers:

DENIUS [597]3 years ago

5 0

Answer:

r = -11

Step-by-step explanation:

krek1111 [17]3 years ago

3 0

The answer is R = -11

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Devon wants to write an equation for a line that passes through 2 of the data points he has collected. The points are (8, 5) and

nevsk [136]

Step-by-step explanation:

Points are (8,5) and (-12,-9)

The equation of a line passing through two points is given by :

$y-y_1=m(x-x_1)\ \text{m is slope}\\\\y-5=\dfrac{y_2-y_1}{x_2-x_1}(x-8)\\\\y-5=\dfrac{-9-5}{-12-8}\times (x-8)\\\\y-5=\dfrac{7}{10}\times (x-8)\\\\10y-50=7x-56$

$-50+56=7x-10y\\\\7x-10y=6$

But he writes the equation 7x – 10y = 3 which is not matching with the one we have calculated. It means that model calculated by Devon is not good.

7 0

4 years ago

Franklin deposits $3500 in an account that earns 3.5% interest compounded annually. Which function equation represents the balan

Nikolay [14]

Hello! 3.5% in decimal form is 0.035. You add 1 to that to get 1.035. B is out, because that number is too high. A is out, because it doesn't add 1. The formula for compound interest is P(1 + r)^t. D is also out, because it incorrectly interprets 3.5% in decimal form. The correct form is 3,500(1.035)^t. The only one that shows this is C. Therefore, the answer is C.

6 0

3 years ago

Read 2 more answers

Help me pls with this complete a and B I will give you brainliest if answer is correct:-)

Ganezh [65]

Answer:

a) Multiplied by 1.04

b)160(1.06)=169.6

Step-by-step explanation:

Its increasing so (1+4%) will be what it multiplied to.

Hope it helps u

160(1+6%)=169.6