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3 years ago

10

Solve.a 12-ft ladder is leaning against a building. the bottom of the ladder is 7 ft from the building. how high is the top of t

he ladder?

1 answer:

maksim [4K]3 years ago

6 0

The answer is 9.74.

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Just do 18 divided by 6, and make your answer a negative. The answer is -3

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The graph below shows the air temperature over a 10 hour period from noon until 10 PM which is true based on the graph?

Sav [38]

B. the temperature change between noon and 6 PM is the same as the temperature change between 8 PM and 10 PM.

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Another question (sorry)

natulia [17]

Answer:

19.99

Step-by-step explanation:

First you would multiply .44 by 16 to get 7.04

then you would add 12.95 to get 19.99

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Solve this equation for x. Round your answer to<br> the nearest hundredth.<br> 3 = In(x + 9)

Mrac [35]

Answer:

x ≈ 11.09

Step-by-step explanation:

Using the rule of logarithms

$log_{b}$ x = n ⇒ x = $b^{n}$

Given

ln(x + 9) = 3 , that is

$log_{e}$ (x + 9) = 3 , then

x + 9 = e³ ( subtract 9 from both sides )

x = e³ - 9 ≈ 11.09 ( to the nearest hundredth )

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3 years ago

If a straight line y = mx + c passes through the intersecting point of 3x - y = 8 and x+ 2y = 5 which is perpendicular to the li

Sindrei [870]

Answer:

Point of intersection:

$3x - y = 8 - - - (a) \\ x + 2y = 5 - - - (b)$

2 × equation(b) + equation (a):

$7x = 21 \\ x = 3 \\ \\ y = 3x - 8 \\ y = 1$

Point of intersection = (3, 1)

Perpendicular line:

$3x + 6y - 11 = 0 \\ 6y = - 3x + 11 \\ y = - \frac{1}{2} x + \frac{11}{6}$

General equation of line:

$y = mx + c \\ 1 = (2 \times 3) + c \\ c = - 5$

<u>Value</u><u> </u><u>of</u><u> </u><u>m</u><u>:</u>

<u> $m \times m {}^{i} = - 1 \\ m \times - \frac{1}{2} = - 1 \\ m = 2$ </u>

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3 years ago