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Alex_Xolod [135]

3 years ago

14

The graph shows the function f(x) = 3x.What is the value of x when f(x) = 9?

1 answer:

Law Incorporation [45]3 years ago

5 0

Answer:

I'm just guessing so don't judge. 3

Step-by-step explanation:

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Arrange the list of numbers in increasing order. Three fractions, arranged from left to right, separated by commas. Begin fracti

Lelechka [254]

The right answer for the question that is being asked and shown above is that: "D. Three fractions, arranged from left to right, separated by commas. Begin fraction four over seven end fraction. Begin fraction three over five end fraction. Begin fraction five over nine end fraction."

6 0

3 years ago

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Heather measures the temperature of her coffee to be 133.4 degrees fahrenheit. It is actually 145 degrees fahrenheit. What is th

zhenek [66]

Answer:

The percent error of Heather's calculation is <u>8%</u>.

Step-by-step explanation:

Given:

Heather measures the temperature of her coffee to be 133.4 degrees fahrenheit. It is actually 145 degrees fahrenheit.

Now, to find the percent error of Heather's calculation.

The temperature of coffee Heather measures = 133.4° F.

Coffee's actual temperature = 145° F.

So, to get the measurement in error we subtract the temperature of coffee Heather measures from coffee's actual temperature:

$145-133.4=11.6\°.$

Now, to get the percent error:

$\frac{11.6}{145}\times 100$

$=\frac{1160}{145}$

$=8\%.$

Therefore, the percent error of Heather's calculation is 8%.

5 0

3 years ago

The manager chooses a student at random. Based on the survey, which statement is true?

jeka57 [31]

What are the statements?

3 0

2 years ago

Those 2 questions I need help with . find sec θ and tanθ

Zielflug [23.3K]

STEP - BY - STEP EXPLANATION

What to find?

The the value of secθ.

Given:

(4, 3)

⇒(x, y) = (4, 3)

Step 1

Draw a sketch.

Step 2

Substitute the values into the trig. ratio formula below.

$tan\theta=\frac{opposite}{adjacent}$

From the sketch above, opposite = 3 and adjacent = 4

$tan\theta=\frac{3}{4}$

Step 3

Find the value of the hypotenuse side using Pythagoras theorem.

let h be the hypotenuse side.

$\begin{gathered} h^2=4^2+3^2 \\ \\ =16+9 \\ \\ =25 \\ \\ h=5 \end{gathered}$

Hence, hypotenuse = 5

Step 4

Substitute the values into the formula below:

$\begin{gathered} cos\theta=\frac{adjacent}{hypotenuse} \\ \\ =\frac{4}{5} \end{gathered}$

But,

$sec\theta=\frac{1}{cos\theta}=\frac{1}{\frac{4}{5}}=\frac{5}{4}$

ANSWER

secθ= 5/4

tanθ=3/4

7 0

11 months ago

Marco deposited $500 in a savings account earning 4% interest over 5 years.

ollegr [7]

C. 100 because 500 times 0.04(decimal form of 4%) is 20. 20 times 5(years) is 100

6 0

3 years ago

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