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3 years ago

64 ∙ 3^x + 14 = 1742

Mathematics

2 answers:

bearhunter [10]3 years ago

6 0

Step 1: Add -14 to both sides.

64(3x)+14+−14=1742+−14

64(3x)=1728

Step 2: Divide both sides by 64.

64(3x)

1728

3x=27

Step 3: Solve Exponent.

3x=27

log(3x)=log(27)(Take log of both sides)

x*(log(3))=log(27)

log(27)

log(3)

x=3

Answer:

x=3

plz mark brainliest :)

svlad2 [7]3 years ago

3 0

Answer:

x=3

Step-by-step explanation:

First we should subtract 14 from both sides, getting 64 * 3^x = 1728. Then we can divide by 64 on both sides, leaving us with 3^x=27. x is equal to 3.

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What are the vertex and x-intercepts of the graph of y=x2-2x-24

valentina_108 [34]

Answer:

Vertex (1,-25), Intercepts at (6,0) and (-4,0)

Step-by-step explanation:

Axis of symmetry = -b/2a = -(-2)/2(1) = 2/2 = 1 so x=1 is the equation of line

Plug x=1 into equation y=1-2-24=-25

factor for x-intercepts: (x-6)(x+4)

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