3 years ago

What’s 5x8-6+5x7 divided by 4

Mathematics

1 answer:

olga nikolaevna [1]3 years ago

3 0

Answer:

17.25

Step-by-step explanation:

5x8-6+5x7 = 69

69 / 4 = 17.25

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If the ratio of the measure of the complement of an angle to the measure of its supplement is 1:3, find the measure of the angle

prohojiy [21]

Set up and solve an equation:

3(90-x) = (180-x). Then 270 - 3x = 180 - x, or 270 - 180 = 2x.
90 = 2x, so x = 45 deg.

Is this true? 3(90-45) = (180-45)? If so, x = 45 degrees is correct.

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3 years ago

A landscaping company sells 13 bushes and 4 trees for $616. Come up with an equation to describe this relationship. If trees cos

xxTIMURxx [149]

Answer:

Bushes cost $28

Step-by-step explanation:

WE have:-

4*63 + 13b = 616 where b = cost of one bush.

252 + 13b = 616

13b = 616 - 252 = 364

b = 364/13

b = 28 (answer)

6 0

3 years ago

Help anyone I don’t understand this ????

Alexeev081 [22]

The answer would be 0
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3 years ago

The property of 12x2-7=6-2x2+2

gayaneshka [121]

12x2-7=6-2x2+2
14x^2-15=0
a=14 , b =0 , c=-15
0^2-4x14x(-15) =
840

6 0

2 years ago

Seattle, wa and san francisco, ca lie on the same longitudinal line. san francisco is at 38° latitude and seattle is at 47° lati

Varvara68 [4.7K]

Step 1.

Calculate measure of angle α:

$47^o-38^o=9^o$

Step 2.

Calculate what fraction of the angle 360° is the angle α:

$\dfrac{9^o}{360^o}=\dfrac{1}{40}$

Step 3.

Calculate the circumference of the Earth (circle):

$C=2\pi r\to C=2\pi\cdot4000=8000\pi\ mi$

Step 4.

The length of arc is equal 1/40 of the circumference:

$\dfrac{1}{40}C=\dfrac{1}{40}\cdot8000\pi=200\pi\ mi$

$\pi\approx3.14\to\dfrac{1}{40}C\approx200\cdot3.14=628\ mi$

<h3>Answer: A) 628 miles</h3>

8 0

3 years ago