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torisob [31]
3 years ago
6

Compare and contrast the terms complementary and supplementary when referring to angles

Mathematics
1 answer:
sattari [20]3 years ago
8 0
Complementary angles are angles that add up to 90º. For example, 30º and 60º.

Supplementary angles are angles that add up to 180º. For example, 120º and 60º.
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Answer:

Step-by-step explanation:

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2 years ago
Write the slope-intercept form of the equation of the line that passes through the point (-4,0 ), and is parallel to y=-(5/4x)+4
amid [387]

Answer:

Step-by-step explanation:

hello :

note :

Use the point-slope formula.

y - y_1 = m(x - x_1)   when : x_1= -4      y_1= 0  

     m= +5/4 (parallel means same slope)

an equation in the point-slope form is : y +0= -5/4(x+4)

4 0
2 years ago
Due to ever-changing technology, a new XYZ Smartphone decreases in value 20% each year. (a) How much will this $1000 phone be wo
neonofarm [45]

Answer:

1.) $640 2.) 7 years.

Step-by-step explanation:

1000 x .2 = 200      1 yr

1000 - 200 = 800

800 x .2 = 160         2 yrs

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640 x .2 = 128         3 yrs

640 - 128 = 512

ANYWAYS THIS WOULD TAKE TO LONG! SO HERE IS THE ANSWER TO B.

5 0
3 years ago
Which equation shows how to use equivalent fractions to evaluate 4/5-2/3
Alecsey [184]
B

Equivalent fractions are made when you multiply both the top (numerator) and the bottom (denominator) of the fraction by the same number. The only choice that is correct here is B.
8 0
2 years ago
What is the mean of the values in the dot plot?
sergij07 [2.7K]
First, write out all the values:
40,41,41,45,48,48,49,49,49,50

Then to find the mean, you add all the values and divide by the number of values (there are 10 values)
(40+41+41+45+48+48+49+49+49+50)/10
460/10
=46

Hope this helps
3 0
2 years ago
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