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natulia [17]
3 years ago
5

Need help with this question!!

Mathematics
1 answer:
Ludmilka [50]3 years ago
5 0

Hey!!

How do you find slopes?

Ans - In order to find slop, we will need to use the slop formula which is

( y₂ - y₁ ) / ( x₂ - x₁ )

Now let's take two points on the graph

I will take the points ( -1 , 0 ) and ( 1 , 2 )

Now let's plug in these values :

y₂ = 2 , y₁ = 0 and x₂ = 1 and x₂ = -1

( 2 - 0 ) / ( 1 + 1 )

2 / 1

Hence, the slope is 2

Hope my answer helps!!

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What is the equation for the line of symmetry in this figure?
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Answer:

x = -1

Step-by-step explanation:

By graphing x = -1, you will see that the line splits this rhombus in two equal halves

6 0
3 years ago
3) Lane and Zack purchased a house for $245,000 in 2016. The house loses 4% of its value each year,
alina1380 [7]

Answer:

$138,345

Step-by-step explanation:

This is a compound decline problem, which will be solve by the compound formula:

F=P(1-r)^t

Where

F is the future value (value of house at 2030, 14 years from  2016)

P is the present value ($245,000)

r is the rate of decline, in decimal (r = 4% = 4/100 = 0.04)

t is the time in years (2016 to 2030 is 14 years, so t = 14)

We substitute the known values and find F:

F=P(1-r)^t\\F=245,000(1-0.04)^{14}\\F=245,000(0.96)^{14}F=138,344.96

Rounding it up, it will be worth around $138,345 at 2030

8 0
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D. Warm air rises and cool air sinks
7 0
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You want to find the height of a tower used to transmit cellular phone calls. You stand 100 feet away from the tower and mesure
nevsk [136]

Answer:

84 feet to the nearest foot.

Step-by-step explanation:

We have a right angled triangle with adjacent side (A) = 100 and you want to find the height of the tower, the opposite side (O).

A = 100 , O = ? so we need the tangent , (from SOH-CAH-TOA).

tan 40 = O/ 100

O = 100 tan 40

= 83.9 feet.

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F(x) = 2(2)2 – 3(2) + 7<br> = 2(4) – 3(2) + 7
hammer [34]

Answer:

9

Step-by-step explanation:

2(2)2 -3(2) + 7

2(4) - 6 + 7

8 - 6 + 7

2 + 7

9

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