3 years ago

1.

Mathematics

1 answer:

Arte-miy333 [17]3 years ago

6 0

Answer:

Yes, it is a function because domain ( x value) is not repeated

Domain: {7, 1, -1, 0}

Range: { 1, 1, 7, -1}

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What is the equation for the line in slope intercept form plz help ASAP

Lubov Fominskaja [6]

Answer:

y = - 4x + 5

Step-by-step explanation:

y = mx + b

(0, b) y-intercept

m = $\frac{y_{2} -y_{1} }{x_{2} -x_{1} }$

~~~~~~~~~~

( - 2, 13)

(0, 5) <----- y-intercept

(3, - 7)

(4, - 11)

m = $\frac{-11+7}{4-3}$ = - 4

y = - 4x + 5

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3 years ago

im not sure wether to replace the minus signs with addition, so if you could help me that would be nice :) 1.2y+4.5-3.4y-6.3

Elenna [48]

Answer:

-2.2y - 1.8

Step-by-step explanation:

We are to simplify the expression:

1.2y + 4.5 - 3.4y - 6.3

Collect like terms:

1.2y - 3.4y + 4.5 - 6.3

Simplify:

-2.2y - 1.8

That is the answer.

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3 years ago

Find the length of XY

Pachacha [2.7K]

Since this is a right triangle, you can use the pythagorean theorem, $leg^2+leg^2=hypotenuse^2$ , to find XY. Since we know that 15 and 17 are our legs and that XY is the hypotenuse, we can solve it as such:

$15^2+17^2=XY^2\\ 225+289=XY^2\\ 514=XY^2\\ \sqrt{514}=XY$

In short, XY is √514, or 22.67 rounded to the hundreths, units long.

7 0

2 years ago

Read 2 more answers

A maps key shows that every of 5 inches on the map represents 200 miles of actual distance.suppose the distance between 2 cities

Lady bird [3.3K]

200/5 = 40 miles per inch. 40x7=280 actual miles.

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3 years ago

What is the withdrawal of $150 at the end of each year for 14 years with an interest rate of 7 percent

Tanzania [10]

Answer:

$10.5

Step-by-step explanation:

Given data

P=$150

T= 1year

R= 7%

The simple interest formula will give the accurate amount at the end of each year

A=P(1+rt)

A=150(1+0.07*1)

A=150*1.07

A=$160.5

The withdrawal = 160.5-150= $10.5

Hence the withdrawal will be $10.5

7 0

3 years ago