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2 years ago

Line a passes through the points (-1,0) and (3,-8) what’s the slope?

Mathematics

1 answer:

konstantin123 [22]2 years ago

8 0

Answer: 2

Step-by-step explanation:

(x1,y1) = (-1,0)

(x2,y2) = (3,8)

m = (8–0)/(3-(-1))

m = 8/(3+1)

m = 8/4

m = 2

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If 2^(x+3) - 2x = k(2^x) what is the value of k

svlad2 [7]

Answer:

$\large\boxed{C)\ 7}$

Step-by-step explanation:

Use:

$a^n\cdot a^m=a^{n+m}$

$2^{x+3}-2^x=2^x\cdot2^3-2^x=8\cdot2^x-2^x=(8-1)\cdot2^x=7\cdot2^x\\\\2^{x+3}-2^x=k(2^x)\\\\7\cdot2^x=k(2^x)\Rightarrow k=7$

$8\cdot2^x-2^x=8\cdot2^x-1\cdot2^x=(8-1)(2^x)=7\cdot2^x\\\\\text{distributive property:}\ a(b-c)=ab-ac$

8 0

3 years ago

Multiply.

sergij07 [2.7K]

Answer:

D) 2x² + 4x - 30

Step-by-step explanation:

Follow the FOIL method:

FOIL =

First

Outside

Inside

Last

...and is the order you multiply to solve:

(x + 5)(2x - 6) =

(x)(2x) = 2x²

(x)(-6) = -6x

(5)(2x) = 10x

(5)(-6) = -30

Combine like terms. Simplify:

2x² -6x + 10x - 30 = 2x² (-6x + 10x) - 30 = 2x² + 4x - 30

2x² + 4x - 30 is your answer.

5 0

3 years ago

Shape 2

mariarad [96]

Answer c venue hiddenwords was your gonna night you want

7 0

3 years ago

In a survey of students about favorite sports the results include 33 who like football, 13 who like tennis and football, 24 who

goblinko [34]

Answer:

How many students like only tennis and football?

13 who like tennis and football

How many students like only baseball and football?

26 who like baseball and football

7 0

3 years ago

Evaluate what is the answer to<br> 3.4<br> +<br> 5.14

Ymorist [56]

3.4
5.14
______

8.54

If we round the answer
We get 8.5

Guess I gave you the correct answer

7 0

2 years ago