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2 years ago

Find the value of x. (Picture attached.)

Mathematics

1 answer:

Svet_ta [14]2 years ago

5 0

Here, triangle AEN and ALG are similar.

We know that the ratio of corresponding sides of two similar triangles are equal. So,

$\frac{21}{42} =\frac{2x-9}{(2x-9)+(x+7)}\\\\\frac{1}{2} =\frac{2x-9}{3x-2}\\\\ 3x-2=4x-18\\\\-2+18=4x-3x\\\\16=x\\\\x=16\\$

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Find the function G defined by G(x) =5x+3 find G(-1)

Nostrana [21]

Answer:

G(-1) = -2

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Algebra I

Functions

Function Notation

Step-by-step explanation:

Step 1: Define

Identify

G(x) = 5x + 3

Step 2: Evaluate

Substitute in x [Function G(x)]: G(-1) = 5(-1) + 3
Multiply: G(-1) = -5 + 3
Add: G(-1) = -2

7 0

3 years ago

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What is the unit rate of change of 8 units in d with respect to 3 units in t

sertanlavr [38]

Answer:

Step-by-step explanation:

4 0

3 years ago

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5^2 + [15-4(3 1/5)] -15.4 And you have to show your work Bc the dang teacher is strict

kotykmax [81]

Answer:

I think the answer is 11.8

Step-by-step explanation:

25+ [ 15- 4 x 16/5] - 15.4

25 +[ 15- 4/1 x 16/5] - 15.4

25+ [ 15 - 20/5 x 16/5] - 15.4

25 +[ 15 - 64/5] - 15.4

25+ [ 15/1 - 64/5] - 15.4

25+ [75/5 - 64/5] - 15.4

25+ 11/5 - 15.4

25+ 2.2 - 15.4

27.2 - 15.4

11.8

4 0

3 years ago

What is the solution of (8x-8)^3/2=64 Edit; the answer is x=3

Talja [164]

I guess since you have the correct answer there that you need to know how to get it. Start by rewriting that exponent as a radical. It would look like this: $\sqrt{(8x-8)^3}=64$ . The first step is to undo that square root by squaring both sides. That will give you this: $(8x-8)^3=4096$ . Next we have to undo that cubing by taking the cubed root of both sides, leaving us with this: $8x-8=16$ . We add 8 to both sides to get 8x = 24 and x = 3.

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3 years ago

The straight line L has equation y = 2x - 5

Aleksandr-060686 [28]

Answer:

slope of perpendicular line - m = -1/2

passing through (-2,3)

thus,

y-3 = -1/2 (x+2)

or y = -1/2x +2

7 0

3 years ago