All categories

3 years ago

HELP PLS. solve the triangle shown in the figure. LC=90 degrees, BC=7.50mi, AC=11.43mi

Mathematics

1 answer:

Sergio [31]3 years ago

7 0

Answer: C

Step by step:

Use the pythagoras' theorem ( c² = a² + b² ) to find the length of AB.
Use trigonometry to find the 2 missing angles of the triangle.

That's all!

You might be interested in

Help me please solve the circled question show your work

Rasek [7]

Part 1) Use the fact that there are 12 inches in a foot

a) How many inches tall is a 7 foot basketball player?

we know that

1 foot=12 inches

so by proportion

$\frac{12}{1} \frac{inches}{foot} =\frac{x}{7} \frac{inches}{feet} \\ \\x=12*7\\ \\x=84\ inches$

therefore

the answer Part 1a) is

$84\ inches$

Part b) If a yard is a 3 feet long, how many inches are in a yard?

we know that

1 yard=3 feet

1 foot=12 inches

Convert 3 feet to inches

by proportion

$\frac{12}{1} \frac{inches}{foot} =\frac{x}{3} \frac{inches}{feet} \\ \\x=12*3\\ \\x=36\ inches$

therefore

the answer Part 1b) is

$36\ inches$

Part 2) At the farmer's market two pounds of peaches cost $4.20 How much will five pounds cost?

by proportion

$\frac{4.20}{2} \frac{\$}{pounds} =\frac{x}{5} \frac{\$}{pounds} \\ \\2*x=4.2*5\\ \\x=4.2*5/2=\$10.5$

therefore

the answer Part 2) is

$\$10.5$

Part 3) Janice mother gave her a ten dollars bill to buy five pounds each of bananas and apples at the grocery store. When she got there she found that bananas were 80 c per pound and apples were $1.40 per pound.

Did Janice's mother give her enough money? If so, should she receive any change? If not, how much more money does she need?

we know that

Find the cost of the bananas

$5\ pounds*0.80\frac{\$}{pounds}=\$4$

Find the cost of the apples

$5\ pounds*1.40\frac{\$}{pounds}=\$7$

Sum the cost of the bananas and the cost of the apples

$\$4+\$7=\$11$

$\$11 > \$10$ ------> Janice's mother didn't give her enough money

She needs more money

She needs-------> $\$11-\$10=\$1$

therefore

the answer part 3) is

She needs $\$1$ more

3 0

3 years ago

Translate and solve -5 times b is no less than -35

Allushta [10]

Answer:b=7

Step-by-step explanation:

To translate -5times b is not less than -35

It means

-5b>-35

To solve,divide through by -5

b=7

8 0

4 years ago

Read 2 more answers

Gnoma [55]

Answer: Third option.

Step-by-step explanation:

These are some transformations for a function f(x):

If $f(x)-k$ , then the function is shifted down "k" units.

If $f(x-k)$ , then the function is shifted right "k" units.

Knowing this we can describe the transformation from the graph of the function $f(x) = x^2$ to the graph of the function $f(x) = (x - 3)^2-1$ . This is:

The function $f(x) = (x - 3)^2-1$ is the function $f(x) = x^2$ but shifted right 3 units and shifted down 1 units.

Therefore, the correct option is the third one.

7 0

4 years ago

Read 2 more answers

Convert the point slope equation y + 5 = - 3/4(x + 2) into standard form.

inna [77]

Answer: 3x + 4y = - 26

Explanation:

1) the standard form is Ax + By = C

2) given: y + 5 = - (3 / 4) (x + 2)

3) multiply both sides by 4:

4y + 20 = - 3 (x + 2)

4) expand the parenthesis using distributive property:

4y + 20 = -3x - 6

5) transpose -3x and 20

4y + 3x = - 20 - 6

6) combine like terms

4y + 3x = - 26

7) rearrange:

3x + 4y = - 26

That is the standard form of the linear equation given.

8 0

4 years ago

Read 2 more answers

X- Y-

soldier1979 [14.2K]

Each time x goes up by 1, y also goes up by 1 as well.

slope = rise/run = 1/1 = 1

Or we can use the slope formula to get

m = (y2-y1)/(x2-x1) = (3-2)/(2-1) = 1/1 = 1

I used the first two rows as the points to plug into the slope formula.

You can pick any two rows you want and you'll get the same slope value.

--------------------------------------

Because we get the same result of 1 each time, this means the rate of change is constant and this function is linear. Plotting all four points will show a single straight line goes through all of them. See diagram below.

7 0

3 years ago