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3 years ago

Will give branlliestSolve the following proportion plz: a. 18 = 8 72

Mathematics

1 answer:

LUCKY_DIMON [66]3 years ago

5 0

Answer:

1:48.44....

Step-by-step explanation:

872/18=48.44

Just plug it into a calculator

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NEED HELP FAST!!!

baherus [9]

We know the y intercept is 16 because y=16 when x=0.

Find slope by calculating change in y over change in x.
(12-16)/(2-0)
-4/2
-2

Plug both values into slope intercept form. y=mx+b where m is slope and b is the y intercept.

Final answer: y=-2x+16

4 0

3 years ago

Which functions is best represented by this graph?

Montano1993 [528]

Answer:

Step-by-step explanation:

The answer is D. because the y intercept is 3 and the slope is down 1 and over 2.

hope this helps.

3 0

3 years ago

James has $120 in his savings account and plans to save 5x each month for 6 months. The expression 56x + 120 represents the tota

Kazeer [188]

Answer: Factorization of 6x + 120 = 6(x+20)

Factors = 6 and x+20

Step-by-step explanation:

Given: The expression 6x + 120 represents the total amount in the account after 6 months.

We need to factor the expression 6x + 120

We can write this as

6 x + 6 (20)

Common factor = 6 in both terms

So, 6 x + 6 (20) = 6(x+20)

Hence, Factorization of 6x + 120 = 6(x+20)

7 0

3 years ago

An aquarium with a square base has no top. There is a metal frame. Glass costs 8 dollars/m^2 and the frame costs 7 dollars/m. Th

Irina-Kira [14]

Given that the volume of the aquarium is 20m^3.

Volume = Area of Base x height

Area of Base = Volume / height = 20/h

Given that the aquarium has a square base.

Area of square = l^2

Thus, the length of the base of the aquarium is $\sqrt{area \ of \ base} = \sqrt{ \frac{20}{h} }$

The frame is to cover 8 sides with the length equal to the length of the base and 4 sides with the length of the height.

Thus, the total perimeter of the frame is given by $8\sqrt{\frac{20}{h}}+4h= \sqrt{64\left(\frac{20}{h}\right)}+4h = \sqrt{\frac{1,280}{h}}+4h$

Area of the four side faces of the aquarium is 4 times the length of the base times the height = $4\times\sqrt{ \frac{20}{h} }\times h=\sqrt{16\left(\frac{20}{h}\right)h^2}=\sqrt{320h}$

Total area to be covered by grass is the base and the four side faces and is given by $\frac{20}{h}+\sqrt{320h}$

Cost of the entire metal frame = $7\left(\sqrt{\frac{1,280}{h}}+4h\right)= \sqrt{49\left(\frac{1,280}{h}\right)}+7(4h) = \sqrt{\frac{62,720}{h}}+28h$

Cost of the entire grass = $8\left(\frac{20}{h}+\sqrt{320h}\right)=\frac{160}{h}+\sqrt{64(320h)}=\frac{160}{h}+\sqrt{20,480h$

Therefore, total cost in terms of the height, h, is given by

$C=\sqrt{\frac{62,720}{h}}+28h+\frac{160}{h}+\sqrt{20,480h$

3 0

4 years ago

what is the equation of the line that passes through (0, -2) and has a slope of 0? y = -2 y = 2 x = 2 user: the slope of a line

ICE Princess25 [194]

Equation of a line is given by y - y1 = m(x - x1); where m is thw slope.
y - (-2) = 0(x - 0)
y = -2

For perpendicular lines, m2 = -1/m1
so, m2 = -1 / -1/3 = 3
Therefore the slope of a line perpendicular to the line is 3.

4 0

3 years ago

Will give branlliestSolve the following proportion plz: a. 18 = 8 72 ​

Will give branlliestSolve the following proportion plz: a. 18 = 8 72