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3 years ago

PLZ can some one help me and can you show your work

Mathematics

2 answers:

lubasha [3.4K]3 years ago

6 0

Answer: check the photo and get the numbers

Step-by-step explanation: yw

n200080 [17]3 years ago

4 0

X= -2 and y= 3 Because -2 times -2(x) plus 4 times 3(y) equal 16

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To work out the area in m² of material required for a pair of curtains, a seamstress squares the height of the window in m and a

Kisachek [45]

Answer:

a. Area = 1.94m²

b. Area = (p² + 0.5)m²

c. Height = 1.5m

Step-by-step explanation:

Given

Let H represents Height and A represents Area

From the first and second statements, we have that:

$A = H^2 + 0.5$

a. Calculating Area When Height = 1.2

$A = H^2 + 0.5$

Substitute 1.2 for H

$A = 1.2^2 + 0.5$

$A = 1.44 + 0.5$

$A = 1.94$

Hence, the area is 1.94m²

b. Calculating Area When Height = p

$A = H^2 + 0.5$

Substitute p for H

$A = p^2 + 0.5$

Hence, the area is (p² + 0.5)m²

c. Calculating Height When Area = 2.75m²

$A = H^2 + 0.5$

Substitute 2.75 for A

$2.75 = H^2 + 0.5$

Subtract 0.5 from both sides

$2.75 - 0.5 = H^2 + 0.5 - 0.5$

$2.75 - 0.5 = H^2$

$2.25 = H^2$

Take Square Root of both sides

$\sqrt{2.25} = \sqrt{H^2}$

$\sqrt{2.25} = H$

$1.5 = H$

$H = 1.5$

Hence, the height is 1.5m

5 0

3 years ago

X + 2y = 72 what are my x and y points on a graph for this equation? please explain

pishuonlain [190]

To find the y int, sub in 0 for x and solve for y
0 + 2y = 72
2y = 72
y = 72/2
y = 36....so ur y int is (0,36)

to find the x intercept, sub in 0 for y and solve for x
x + 2(0) = 72
x = 72....and ur x int is (72,0)

6 0

3 years ago

15. See the image below:

Lunna [17]

Answer: me personally i think B

Step-by-step explanation:

3 0

3 years ago

Fill in the missing numbers to the linear eqution

V125BC [204]

Answer:

$y=-30x+0$

Step-by-step explanation:

we know that

A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form $k=\frac{y}{x}$ or $y=kx$

In a proportional relationship the constant of proportionality k is equal to the slope m of the line and the line passes through the origin

In this problem the linear equation represent a proportional relationship, because pass through the origin (0,0).

Find the value of the constant of proportionality k

For x=1, y=-30

substitute

$k=\frac{-30}{1}=-30$

the linear equation is

$y=-30x$

therefore

$y=-30x+0$

6 0

3 years ago

Dr. Jane is studying the growing population of a species of jellyfish in a body of water. Each year, she records the population

exis [7]

We can use the equation [ f(x) = 16*4^(x-1) ] where x equals the year of study.

f(7) = 16*4(7-1)

f(7) = 16*4^6

f(7) = 16*4096

f(7) = 65,536

There is no option that resembles the correct answer.

Best of Luck!

5 0

3 years ago