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riadik2000 [5.3K]
2 years ago
14

What is the variable in the expression: 7h + 3 *

Mathematics
2 answers:
mestny [16]2 years ago
8 0

Answer:

The answer is h

Step-by-step explanation:

In a multiple choice quiz I got it

densk [106]2 years ago
7 0

A variable is a letter that represents any number.

So in this expression, <em>h</em> is the variable.

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What is the mean of the data set?
Katarina [22]

Answer:

The answer is 26. Add them all together then divide by the amount of numbers.

Step-by-step explanation:

7 0
3 years ago
The heights (in cm) and arm spans (in cm) of 31 students were measured. The association between (height) and (arm span) is shown
sergeinik [125]

Answer: Mike's arm span is 7.165 cm longer than the George's one.

Step-by-step explanation:

We have that the association between height and arm span is modeled by the equation

y = 4.5 + 0.977*x

where y is height and x is arm span.

Mike is 172 cm tall, so his arm span is:

172cm = 4.5 + 0.977*x

x = (172 - 4.5)/0.977 = 171.443 cm

and George is 165 cm tall, so his arm span is:

x = (165 - 4.5)/0.977 = 164.278 cm

Then the difference between their arm span is:

171.443cm - 164.278cm = 7.165 cm

So Mike's arm span is 7.165 cm longer than the George's one.

6 0
3 years ago
The slope of the line below is -1/7. Write a point-slope equation of the line using the coordinates of the labeled point ( 3, 3)
Varvara68 [4.7K]
Y - 3 = -1/7(x - 3)

answer is B.

hope it helps
8 0
4 years ago
Based on the abbreviations, translate the following ad into fully spelled-out sentences. The final sentence should state
Tpy6a [65]

Answer:

low cash to mortgage, two bedroom one bedroom. ​Qualifying Low monthly payments

555-834-3674 Norris Realty

8 0
3 years ago
H(x) = 2^x<br>Solve the equation h^-1 (x) =0.5​
Ludmilka [50]

Answer:

The answer is

<h2>\sqrt{2}  \:  \: or \:  \: 1.414</h2>

Step-by-step explanation:

<h3>h(x) =  {2}^{x}</h3>

To solve the equation we must first find h-¹(x)

To find h-¹(x) equate h(x) to y

That's

<h3>y =  {2}^{x}</h3>

<u>Next interchange the terms </u>

x becomes y and y becomes x

That's

<h3>{2}^{y}  = x</h3>

<u>Make y the subject</u>

Take logarithm to base 2 to both sides

That's

<h3>log_{2}( {2} )^{y}  =  log_{2}x \\ y  log_{2}2 =  log_{2}(x)</h3>

But

<h3>log_{2}(2)  = 1</h3><h3>y =  log_{2}(x)</h3>

So we have

<h3>{h}^{ - 1} (x) =  log_{2}(x)</h3>

Now we can solve the equation

We have

<h3>log_{2}(x)  = 0.5</h3>

Convert the logarithm into exponential form using the fact that

<h3>log_{a}(x)  = b \:  \:  \cong \:  \: x =  {a}^{b}</h3>

So we have

<h3>x =  {2}^{0.5}</h3>

But

<h3>{2}^{0.5}  =  \sqrt{2}</h3>

So we have the final answer as

<h3>\sqrt{2}  \:  \: or \:  \: 1.414</h3>

Hope this helps you

8 0
3 years ago
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