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exis [7]
3 years ago
12

State whether every point on the graph is a solution of the equation. Explain why or why not. x – 4y = –4 A. Every point shown o

n the graph is not a solution of the equation because when the coordinates of the points are substituted into the equation, the equation is not true for all the points. B. Every point shown on the graph is a solution of the equation because when the coordinates of the points are substituted into the equation, the equation is true for all the points. Question Resources
Mathematics
1 answer:
PtichkaEL [24]3 years ago
3 0
B!

The equation x-4y= -4 is the graph, right? So that means when x is, lets say, 2, then:

2-4y= -4

Simplify
-4y=-6
y=3/2

Now if you think about it, if you plug in any number for x and get some value of y, that is the point on the graph at that x value.

Hope this helps!
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A city park commission received a donation of playground equipment from a parents' organization. The area of the playground need
dalvyx [7]

Answer:

Length = 20.49 yards and Width = 12.49 yards.

Step-by-step explanation:

The area of the rectangular playground is given by 256 yards square. It is also known that one of the sides of the playground is 8 yards longer than the other side. Therefore, let the smaller side by x yards. Then the longer side will be (x+8) yards. The area of the rectangle is given by:

Area of the rectangle = length * width.

256 = x*(x+8)

x^2 + 8x = 256. Applying the completing the square method gives:

(x)^2 + 2(x)(4) + (4)^2 = 256 + 16

(x+4)^2 = 272. Taking square root on both sides gives:

x+4 = 16.49 or x+4 = -16.49 (to the nearest 2 decimal places).

x = 12.49 or x = -20.49.

Since length cannot be negative, therefore x = 12.49 yards.

Since smaller side = x yards, thus smaller side = 12.49 yards.

Since larger side = (x+8) yards, thus larger side = 12.49+8 = 20.49 yards.

Thus, the length and the width to minimize the perimeter of fencing is 20.49 yards and 12.49 yards respectively!!!

7 0
3 years ago
Write an equation in Standard Form. A store sells t-shirts for $12 each and
Dmitrij [34]
Standard form: Ax + By = C
Equation: 12x + 15y = 120
8 0
3 years ago
Read 2 more answers
1 point
mrs_skeptik [129]

you divied the 10.30 by 10 and get 1.03

8 0
3 years ago
Thirty-two percent of fish in a large lake are bass. Imagine scooping out a simple random sample of 15 fish from the lake and ob
klio [65]

Answer:

Thirty-two percent of fish in a large lake are bass. Imagine scooping out a simple random sample of 15 fish from the lake and observing the sample proportion of bass. What is the standard deviation of the sampling distribution? Determine whether the 10% condition is met.

A.  The standard deviation is 0.8795. The 10% condition is met because it is very likely there are more than 150 bass in the lake.

B. The standard deviation is 0.8795. The 10% condition is not met because there are less than 150 bass in the lake.

C. The standard deviation is 0.1204. The 10% condition is met because it is very likely there are more than 150 bass in the lake.

D. The standard deviation is 0.1204. The 10% condition is not met because there are less than 150 bass in the lake.

E. We are unable to determine the standard deviation because we do not know the sample mean. The 10% condition is met because it is very likely there are more than 150 bass in the lake

The answer is E.

6 0
3 years ago
I need help please and thank you
nasty-shy [4]

Answer:

x=28

Step-by-step explanation:

x-4 =8(3)

x-4 =24

x= 28

7 0
3 years ago
Read 2 more answers
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