I really need help with this I have an upcoming test.

Answers

Answer 1

Answer:

Answer:

Hi,

Step-by-step explanation:

$7^(x+3)=8\n\nln(7^(x+3))=ln(8)\n\n(x+3)*ln(7)=ln(8)\n\nx+3=(ln(8))/(ln(7)) \n\nx=(ln(8))/(ln(7)) -3x=-1,9313784386759334704574687659961...\n\n\boxed{x\approx{-1.93}}$

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Which of the following are the factors of 4b2 - 16?a. (2b + 4)(2b + 4) b. (2b – 2)(2b + 4) c. 4(b – 2)(b + 2) d. 2(b – 4)(b + 4)
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Please help! I will try to mark brainliest

Answers

Answer:

1.23

0.067

25.34

Step-by-step explanation:

10^2 = 100

The point moves two places towards the right

A total of 120,000 votes were cast for 2 opposing candidates, Garcia and Pérez. If Garcia won by a ratio of 5 to 3, what was the number of votes cast for Pérez?

Answers

Total votes = 120,000
Gracia won by a ratio of 5 : 3
so, total votes earned by Gracia = 5/8 * 120,000 = 75000

So, number of votes cast for Pérez = (120000 - 75000)
=

A matrix is rectangular array of numbers

Answers

True a matrix is a rectangular array of numbers.

What is the slope of a line perpendicular to MN for M(-3, 4) and N(5, -8)?

Answers

Answer:

slope of the line perpendicular to MN = 2/3

Step-by-step explanation:

slope = y2 - y1 / x2 - x1

the given co-ordinates are:

x1, y1 = -3, 4

x2, y2 = 5, -8

slope = -8 - 4 / 5 + 3

= -12/8

= -3/2

slope of the line perpendicular to MN = -1 / slope

= -1 / -3/2

= -1 * -2/3 = 2/3

Answer:

m = 2/3

Step-by-step explanation:

Slope = (y-y)/(x-x)

(-8-4)/5- -3) = -12/8

-12/8 = -3/2

Slope od the perpendicular line= 2/3

Four bands are going to play in a concert. In how many different orders can the bands play

Answers

Answer:

Step-by-step explanation:

If s(x) = x – 7 and t(x) = 4x2 – x + 3, which expression is equivalent to (t*s)(x)?4(x – 7)2 – x – 7 + 3

4(x – 7)2 – (x – 7) + 3

(4x2 – x + 3) – 7

(4x2 – x + 3)(x – 7)

Answers

The correct answer is 4(x-7)²-(x-7)+3.

Explanation:
When we find (t*s)(x), that is the same as t(s(x)). To evaluate this, we take the value of s(x), x-7, and substitute it in for every x in t(x). Instead of 4x², we have 4(x-7)²; instead of -x, we have -(x-7). This gives us 4(x-7)²-(x-7)+3.

Answer:

$(4x^2-x+3)(x-7)<strong>$