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3 years ago

Choose 1 answer:

Mathematics

2 answers:

Inessa [10]3 years ago

6 0

The answer is A, the angel are opposite of each other and opposite angles are always vertical.

tino4ka555 [31]3 years ago

3 0

Answer:

Step-by-step explanation:

vertical are always opposite each other

complementary are 180

supplementary are 90

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Kim bought 12 boxes of drinks He paid $15 for each box. There were 12 drinks in each box. Kim sold 3/4 of the drinks for $1.50 e

ella [17]

Answer:

what's the question ?

Step-by-step explanation:

6 0

3 years ago

A fence is to be built to enclose a rectangular area of 800 square feet. The fence along three sides is to be made of material t

myrzilka [38]

Answer:

dc/dx = 0 when x = 20. hence fence is 20×40

Step-by-step explanation:

Given data:

Rectangular Area = 800 ft^2

three side material cost = $5 per ft

fourth side material cost is $15 per ft

let expensive side is x and other dimension assume to be y

Then cost is c

c = 5(x+ 2y) + 15 x

xy = 800, so y = 800/x

c =5(x+ 1600/x^2) + 15x

for minimum when dc/dx = 0

$\frac{dc}{dx} = 5(1-\frac{1600}{x^2}) + 15 = 0$

$5(1-\frac{1600}{x^2}) + 15 = 0$

$(1-\frac{1600}{x^2}) + 3 = 0$

$(1-\frac{1600}{x^2}) = - 3$

$x^2 - 1600 = -3x^2$

$4x^2 - 1600 = 0$

(2x-40)(2x+40) = 0

x = 20

dc/dx = 0 when x = 20. hence fence is 20×40

3 0

4 years ago

A city receives 4 inches of snowfall every 6 hours. Write and graph a function that describes the relationship. How long does it

OLEGan [10]

Answer:

y= 2/3x

Step-by-step explanation:

Hi, the slope-intercept would be y= 2/3x. This is because the city receives 4 inches of snow every 6 hours. 4/6 simplified is 2/3.

5 0

3 years ago

I need help plzz and thank you Solve for j.<br><br> 2j = 6

Darina [25.2K]

Answer:

Step-by-step explanation:

2j = 6 divide 2 on both sides

j = 6/2

j = 3

8 0

3 years ago

Read 2 more answers

The population of a city was 572,000 in 2010. In the 2000 census the population was 607,000. What was the rate of decrease of th

kramer

Answer:

Step-by-step explanation:

<em>To solve this you need to subtract 607000 by 572000 to see how many people in the population decreased.</em>

607,000- 572,000= 35,000

Then you put 35,000 over 607,000

also you need x over 100

35000/607,000 x/100

Then do cross product property

35,000*100=3,500,000

607,000* x= 607,000x

3,500,000= 607,000x

Then do 3,500,000 divided by 607,000

You get 5.76%

Round to the nearest percent and get 6%

7 0

3 years ago