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AnnyKZ [126]
3 years ago
15

Given (10,4) and (2,8)

Mathematics
1 answer:
Mariulka [41]3 years ago
5 0
(10,4)(2,8)
slope = (8 - 4) / (2 - 10) = 4 / -8 = -1/2

y= mx + b
slope(m) = -1/2
(2,8)....x = 2 and y = 8
now we sub and find b, the y int
8 = -1/2(2) + b
8 = -1 + b
8 + 1 = b
9 = b

slope intercept form is : y = -1/2x + 9 <====

1/2x + y = 9...multiply everything by 2
x + 2y = 18 <== standard form

point slope : y - y1 = m(x - x1)...there can be 2 answers for this...
(1) using (10,4).......y - 4 = -1/2(x - 10)
(2) using (2,8)....y - 8 = -1/2(x - 2)
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There is a number such that four times the number plus 3 is equal to 19. Find the number
frosja888 [35]

Answer:

4

Step-by-step explanation:

We have been given that it equals 19 when added to 3 and multiplied by 4 so follow these steps:

1. set the equation 4x+3=19

2. solve for x

4x+3-3=19-3

This is used to solve for x

3. 4x=16 is found

4. if 4x=16, we divide 16/4 and get 4!

That's your answer hope it helped!

3 0
4 years ago
Read 2 more answers
It takes 2 workers 6 days to paint a mansion. How many days would it take 4
marishachu [46]

Answer:

2 workers = 6 days

4 workers = 3 days

Step-by-step explanation:

If it takes 2 workers 6 days, if you seep up the process with 4 workers, you would divide the days by 2 because you multilpied the workers by 2. So, it would take 3 days with 4 workers. I hope that makes sence.

4 0
3 years ago
Choose the correct simplification of the expression (-9a^3b^2c^10)^0
Flauer [41]

Option C: 1 is the simplification of the expression \left(-9 a^{3} b^{2} c^{10}\right)^{0}

Explanation:

The given expression is \left(-9 a^{3} b^{2} c^{10}\right)^{0}

We need to simplify the given expression.

<u>Simplification:</u>

To simplify the given expression, let us apply the exponent rule, a^{0}=1 where a \neq 0

Thus, the the exponent rule a^{0}=1 means that any value (except zero) to the power of zero is equal to one.

Thus, the expression \left(-9 a^{3} b^{2} c^{10}\right)^{0} becomes,

\left(-9 a^{3} b^{2} c^{10}\right)^{0}=1

Therefore, the simplified expression is 1

Hence, Option C is the correct answer.

8 0
3 years ago
Given f(x)= 3x+21. A. F(4)=B. F(X)= 50, X=2. C. F(-5)=D. F(X)= -34, X=
nignag [31]

The given function is

f(x)=3x+2

A . f(4) means we have to evaluate the function when x = 4.

f(4)=3(4)+2=12+2=14<h2>Therefore, f(4) = 14.</h2>

B. f(x) = 50 means we have to evaluate the function when y = 50.-

\begin{gathered} 50=3x+2 \\ 50-2=3x \\ x=\frac{48}{3} \\ x=16 \end{gathered}<h2>Therefore, f(16) = 50.</h2>

C. f(-5) means we have to evaluate the function when x = -5.

f(-5)=3(-5)+2=-15+2=-13<h2>Therefore, f(-5) = -13.</h2>

D. f(x) = -34.

\begin{gathered} -34=3x+2 \\ -34-2=3x \\ x=\frac{-36}{3} \\ x=-12 \end{gathered}<h2>Therefore f(-12) = -34.</h2>
4 0
2 years ago
Annabelle and Navene are multiplying (4275)(4372).
Anastasy [175]

Answer: no

Step-by-step explanation: no because 4275 times 4372 equals 18,690,300 but in the first one she says it’s equal to 42 + 375 + 2 wich is no we’re near that number and on the second one she says it is equal to 42⋅375⋅2 wich is also wrong

7 0
3 years ago
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