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1 year ago

Find the value of x. If necessary, write your answer in the simplest radical form.

Mathematics

2 answers:

Zigmanuir [339]1 year ago

6 0

Answer is = 90°

Hope this helps

Paul [167]1 year ago

3 0

Answer:

x = 4 $\sqrt{5}$

Step-by-step explanation:

Using Pythagoras' identity in the right triangle.

The square on the hypotenuse is equal to the sum of the squares on the other 2 sides, that is

x² + 1² = 9²

x² + 1 = 81 ( subtract 1 from both sides )

x² = 80 ( take square root of both sides )

x = $\sqrt{80}$ = $\sqrt{16(5)}$ = $\sqrt{16}$ × $\sqrt{5}$ = 4 $\sqrt{5}$

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3) What is an equation for the line that passes through the coordinates (-1.2) and (7,6) ?

OLEGan [10]

Answer:

$y=\frac{1}{2} x+\frac{5}{2}$

Step-by-step explanation:

First find the slope using the slope using the given points. Remember that the slope is the change in y over the change in x.

$\frac{6-2}{7- (-1)}=\frac{4}{8}=\frac{1}{2}$

So now we have the equation $y=\frac{1}{2} x+b$ , and we need to find out what b is. We can do this by pointing a point (either one, but I'll use -1,2) into the equation

$2=\frac{1}{2}(-1)+b$

Rearrange the equation so it equals b

$\frac{5}{2}=b$

Put it together and that's the final equation!

$y=\frac{1}{2} x+\frac{5}{2}$

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2 years ago

A rental car company charges $150.00 for a weekly rental and an additional $0.20 for each mile driven. The function rule C = 0.2

son4ous [18]

Answer:

A rental car company charges $150.00 for a weekly rental and an additional $0.20 for each mile driven.

The function $C = 0.20m+ 150.00$ ,

where m is the number of miles and C is the total cost.

Since it is given that : If the rental car can only be driven a maximum of 200 miles.

Then the total cost for this is,

$C = 0.20 (200)+150$ or

$C= 40+150$

On simplify we get,

$C = \$ 190$

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Graph the function : $C = 0.20m+ 150.00$ as shown in the attachment.

7 0

3 years ago

The relative growth rate for a certain type of fungi is 70% per hour. A small culture has formed and in just 6 hours the count s

Nezavi [6.7K]

54,273 = A * 1.70^6 where A is the initial number
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3 years ago

Read 2 more answers

Ms Rennet buys 500 handbags from the factory at R120 each (excluding VAT).She then sells the handbags to her customers for R 190

Vilka [71]

Answer:

Step-by-step explanation:

3.1.1 What do you mean by SARS

Answer 3.1.2

20% of R190 = R38

38*500=R19000

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2 years ago

Gerald has 10 cards, numbered 1-10. He shuffles the cards and fans them out on a table.

Pavel [41]

Answer:

1- false; 2- true; 3- true; 4-false

8 0

3 years ago

Find the value of x. If​ necessary, write your answer in the simplest radical form.

Find the value of x. If necessary, write your answer in the simplest radical form.