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Natalija [7]
3 years ago
13

Use properties of addition and subtraction to evaluate the expression. −28−47−12

Mathematics
1 answer:
MAXImum [283]3 years ago
3 0
So you want the answer right ? if yes then the answer is -87
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What is a complementary angle and a supplementary angle? Please write at least a paragraph about it.
Elis [28]

Answer:

Step-by-step explanation:

A comlemetery angle is a angel or angles that add up to 90 degrees. They make a right angle. A supplemetry angle is a agle or agles that add up to 180 degrees and make a strate line.

6 0
3 years ago
At a real estate agency, an agent sold a house for $399000. The commission rate is 5.5% for the real estate agency and the commi
erastova [34]

Answer:

2,101,000?

Step-by-step explanation:

5.5/100 * 382,000 = ?

5.5 * 382,000 = 2,101,000

7 0
2 years ago
Solve for x Round to the nearest tenth one place after the decimal !
aniked [119]

Answer:

x = 14.4

Step-by-step explanation:

x is sin(angle 24/30)×24

how do we get the angle at 24/30 ?

by using the extended Pythagoras for baselines opposite other than 90 degrees.

c² = a² + b² - 2ab×cos(angle opposite of c)

in our example the angle 24/30 is opposite of the side 18.

so,

18² = 24² + 30² - 2×24×30×cos(angle 24/30)

324 = 576 + 900 - 1440×cos(angle 24/30)

324 = 1476 - 1440×cos(angle 24/30)

1440×cos(angle 24/30) = 1152

cos(angle 24/30) = 1152/1440 = 576/720 = 288/360 = 144/180 = 72/90 = 36/45 = 12/15 = 4/5

angle 24/30 = 36.9 degrees

x = sin(36.9) × 24 = 14.4

4 0
3 years ago
Determine the simple interest when:
ivann1987 [24]

Answer:

$75.65

Step-by-step explanation:

First, converting R percent to r a decimal

r = R/100 = 4.25%/100 = 0.0425 per year,

then, solving our equation

I = 890 × 0.0425 × 2 = 75.65

I = $ 75.65

The simple interest accumulated

on a principal of $ 890.00

at a rate of 4.25% per year

for 2 years is $ 75.65.

4 0
3 years ago
Please help me understand this!
Fiesta28 [93]
8 divided by 3.14
12•3.14
4• square root of 3.14 divided by 3.14
16 divided by 3.14
144•3.14 squared

Hope it helped:)
6 0
2 years ago
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