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balu736 [363]
3 years ago
7

Solve (x-3)^2=5 A. x=5+√3 B. x=-3+√5 C. x=3+√5 D. x=8 and x=-2

Mathematics
2 answers:
Marina86 [1]3 years ago
7 0

Answer:

C

Step-by-step explanation:

(x-a)^2=5

x-3=root of 5

x= root of 5 +3

kodGreya [7K]3 years ago
4 0

Answer:

A

Step-by-step explanation:

we should first find the value of x.

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Roland said it is possible to make a triangle from the following lengths: 31 inches, 70
dlinn [17]

Answer:

the teacher should be sad. the correct answer is 68 inches is NOT greater than 70 inches, therefore a triangle can't be created

Step-by-step explanation:

in a triangle, 2 sides added together have to be greater than the third side or else the triangle can't be created. therefore, since 31+37=68 inches, and 68<70, the triangle can't be created.

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3 years ago
A company manufactures and sells video games. A survey of video game stores indicated that at a price of $66 each, the demand wo
AysviL [449]

Answer:

y=-30x+2380

Step-by-step explanation:

x\rightarrow represent price per video game.

y\rightarrow represent demand.

The linear equation in slope intercept form can be represented as:

y=mx+b

where m is slope of line or rate of change of demand of game per dollar change in price and b is the y-intercept or initial price of game.

We can construct two points using the data given.

When price was $66 each demand was 400. (66,400)

When price was $36 each demand was 1300. (36,1300)

Using the points we can find slope m of line.

m=\frac{y_2-y_1}{x_2-x_1}

m=\frac{1300-400}{36-66)}

m=\frac{900}{-30}

m=-30

Using point slope form of linear equation to write the equation using a given point.

y-y_1=m(x-x_1)

Using point (66,400).

y-400=-30(x-66)

⇒ y-400=-30x+1980    [Using distribution]

Adding 400 to both sides:

⇒ y-400+400=-30x+1980+400

⇒y=-30x+2380

The linear relationship between price and demand can be written as:

y=-30x+2380

4 0
3 years ago
3×-5=16 and 3×=21
larisa [96]

Step-by-step explanation:

because we can also find out the value of x in second equation like this

3x=21

x=21/3

x=7

8 0
3 years ago
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The graph of y=f(x) is shown. Draw the graph of y=f(-x).
Sladkaya [172]
Reflect points on the graph over the y-axis
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