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3 years ago

Find the measure of the indicated angle

Mathematics

1 answer:

IgorLugansk [536]3 years ago

3 0

Answer:

Angle A is also the measurement of 48 degrees because the dashes on the triangle lines indicate that they are the same.

Step-by-step explanation:

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1/f=1/a+1/b solve for f

photoshop1234 [79]

Greetings!

"Solve for f: $1/f=1/x+1/y$ ".

Multiply both sides by f.
$(1/f)*f=(1/x+1/y)*f$
Simplify.
$1=(fx+fy)/xy$
Multiply both sides by xy.
$(1)*xy=((xf+yf)/xy)*xy$
Simplify.
$xy=xf+yf$
Factor out f.
$xy=f(x+y)$
Divide both sides by x+y.
$(xy)/x+y=(f(x+y))/x+y$
Simplify.
$(xy)/(x+y)=f$
$f=(xy)/(x+y)$

Had to change the variable as Brainly thought it was a swearword. Sorry.

Hope this helps.
-Benjamin

8 0

3 years ago

Find the distance between V(4,4) and X(5,8).<br> Round to the nearest tenth, if necessary.

Margarita [4]

Answer:

$(x_{2} - x_{1})^{2} + (y_{2} - y_{1})^{2} = c^{2}$

$V(x_{1}, y_{1}) = V(4, 4)\\X(x_{2}, y_{2}) = V(5, 8)\\$

$(5-4)^{2} + (8-4)^{2} = c^{2}\\1^{2} + 4^{2} = c^{2}\\$

$1+16=c^{2}\\17= c^{2}\\c = \sqrt{17}$

Step-by-step explanation:

Start by plotting your points.

If the line is diagonal, then realize you can make a triangle with the line connecting the two points being the hypotenuse.

Use Pythagorean Theroem to solve.

3 0

3 years ago

jeffrey's paycheck varies directly with the hours he works . when jeffrey works 5 hours , he gets paid $75.00. how much does jef

MrRissso [65]

Direct variations can be set up as proportions
5/75 = 8/x....5 hrs to 75 dollars = 8 hrs to x dollars
now we cross multiply
(5)(x) = (75)(8)
5x = 600
x = 600/5
x = 120 <== so he makes $120 for working 8 hrs

another way...
75/5 = 15..so he makes 15 per hr
15 * 8 = 120

6 0

3 years ago

Read 2 more answers

Have many solutions does -4x + 6 + 3x = 12

LUCKY_DIMON [66]

Answer:As there are 2 equations and two unknowns there is 1 solution

Step-by-step explanation:

3 0

4 years ago

Read 2 more answers

The price of an item has dropped to $63 today. Yesterday it was $140. What was the percentage decrease?

den301095 [7]

Given:

a.) The price of an item has dropped to $63 today.

b.) Yesterday it was $140.

For us to be able to determine the percentage decrease, we will be using the following formula:

$\text{ Percentage Decrease = }\frac{\text{ Original Price - Present Price}}{\text{ Original Price}}\text{ x 100}$

We get,

Original Price = $140

Present Price = $63

$\text{ Percentage Decrease = }\frac{\text{ Original Price - Present Price}}{\text{ Original Price}}\text{ x 100}$ $\text{ = }\frac{\text{ 140 - 63}}{\text{ 140}}\text{ X 100}$ $\text{ = }\frac{77}{140}\text{ X 100}$ $\text{ = }0.55\text{ x 100}$ $\text{Percentage Decrease = }55\text{\%}$

Therefore, the decrease of the price in percentage is 55%.

4 0

2 years ago