3 1/2 x 4= {Khan Academy}

Answers

Answer 1

Answer:

Answer:

7x^4/2

Step-by-step explanation:

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A triangle has an area of 20 cm2. If its base is 40% of its height, what is its height to the nearest tenth of a centimeter?
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Increase £30 by 15% what is the annswer
-6 + (-5) + 74-4-1818
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Can somebody please help me with my discrete math sudoku puzzles.

Answers

Use trial and error, best way to start when trying to play sudoku for the first time.

Determine if triangle a bc with coordinatesome a (0,2), b (2,5) and c (-1,7) is an isosceles triangle

Answers

it would not be isosceles it would be scalene because a scalene doenst have the same sides all it sides are different

What is the value of x when 3x=54?
A) x=18
B) x=51
C) x=57
D) x=162

Answers

Answer:

Step-by-step explanation:

54 ÷ 3 = 18

................

The deegree measures of two opposite angles of a parallelagram are represcented by 2n+30 and n+45. Find n

Answers

For this case, we have that by definition, in a parallelogram, the opposite angles are congruent, that is, they are equal. So, given the measurements of two opposite angles of a parallelogram, we have:

$2n + 30 = n + 45$

Clearing "n":

Subtract "n" from both sides of the equation:

$2n-n + 30 = n-n + 45\nn + 30 = 45$

We subtract 30 from both sides of the equation:

$n + 30-30 = 45-30\nn = 15$

Thus, the value of n is 15.

Answer:

$n = 15$

Opposite angles in parallelogram are equal so the answer will be;

2n+30=n+45

2n-n=45-30

n=15

1. Given f(x) = 3x – 4 and g(x)=–2x+7 evaluate:
(fog)(5)

Answers

Answer:

(f o g)(5) = -13

General Formulas and Concepts:

Pre-Alg

Order of Operations: BPEMDAS

Algebra I

Composition of functions

Step-by-step explanation:

Step 1: Define

f(x) = 3x - 4

g(x) = -2x + 7

(f o g)(5) is f(g(5))

Step 2: Find composite function

Substitute: (f o g)(x) = 3(-2x + 7) - 4
Distribute: (f o g)(x) = -6x + 21 - 4
Combine like terms: (f o g)(x) = -6x + 17

Step 3: Solve

Substitute: (f o g)(5) = -6(5) + 17
Multiply: (f o g)(5) = -30 + 17
Add: (f o g)(5) = -13

Help me with this promblem THXXXX

Answers

Answer: Choice C)

Function 1 = negative y intercept

Function 2 = positive y intercept

====================================================

Explanation:

A. This is false because function 2 has a positive y intercept. Each time x goes up, y goes down. Reverse this and decreasing x leads to increasing y.

B. False. Function 1 has a negative y intercept. The y intercept occurs where the diagonal line crosses the y axis.

C. True. The graph shows a negative y intercept. The y intercept of function 2 is (0,2).

D. False. This contradicts choice C.

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