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Free_Kalibri [48]
3 years ago
6

What is the vaule of the expression x + y + - y When x= -1 and y = 3

Mathematics
2 answers:
mel-nik [20]3 years ago
6 0

Answer:

x + y - y \\  - 1 + 3 - 3 \\  =  - 1

tatuchka [14]3 years ago
6 0

Answer:

-1

Step-by-step explanation:

This is a substitution question

The given equation is x+y+(-y)

And x is said to be-1,y=3

So let's solve

x+y+(-y)

Open the bracket first

x+y-y

So let's substitute

-1+3-3

-1+0

=-1

Therefore the final answer is-1

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Help please!!! I really don’t know how to do this!
AysviL [449]

Answer:

I'm going to do 1 as an example and using what I've taught you, you have to do the rest. Hope my explanation helps.

Step-by-step explanation:

We are given the points (-2, -4) and (-1, -1)

We need to find the slope.

The equation to do so is y2 - y1 / x2 - x1

lest say:

-2 is x1

-4 is y1

-1 is x2

-1 is y2

-1 - (-4) / -1 - (-2)

3/1 = 3

slope (m) = 3

We already know the y-intercept is 2

The equation of a line is y = mx + b

For this problem we just have to substitute what we already know.

y = (slope)x + y-intercept

y = 3x + 2

*TIP*

If the y-intercept is negative, let's say: b = -5  (using slope 8)

the equation will be y = 8x - 5

Hope this helps. I wish you all the best. :)

5 0
2 years ago
(-2,3) and (-4,3) what is the units
zzz [600]
I think you mean what's the name of it,
they are called ordered points.
6 0
3 years ago
Annual insurance is 1,000 face value.
satela [25.4K]

Answer:

The correct answer is A.

Step-by-step explanation:

  • Premium for Company A :

face value = 1.86 , charges are 20% more for smokers

⇒ Charges = 20% of 250000 = $50000

Total charge = Charge × face value

                     = 50000 × 1.86 = $93000

  • Premium for Company B :

face value = 1.86 , charges are 18% more for smokers

⇒ Charges = 18% of 250000 = $45000

Total charge = Charge × face value

                     = 45000 × 1.86 = $83700

  • Premium for Company C :

face value = 2.07 , charges are 25% more for smokers

⇒ Charges = 25% of 250000 = $62500

Total charge = Charge × face value

                     = 62500 × 2.07 = $129375

  • Premium for Company D :

face value = 2.25 , charges are 15% more for smokers

⇒ Charges = 15% of 250000 = $37500

Total charge = Charge × face value

                     = 37500 × 2.25 = $84375

Hence, The option A. is correct that is Aaron is paying the smallest premium possible with company B



8 0
3 years ago
Read 2 more answers
Help MOI Again PLEASE lol
Evgesh-ka [11]

Answer:

-5a + 20a +-4a - -6= -16

Answer- a= -2

Step-by-step explanation:

Hope this helps!

4 0
3 years ago
Read 2 more answers
Charlotte's curtain company is making curtains for a local hotel. She wants each curtain to be 36 inches long. At the fabric sto
nekit [7.7K]

Answer:

<em>159 feet of fabric</em>

Step-by-step explanation

We are told that 1 curtain is 36inches long

Since 1 foot = 12inches

x foot = 36inches

Cross multiply;

12 * x = 36

12x = 36

x = 36/12

x = 3

Hence 36inches is same as 3 feet

If Charlotte's curtain company wants to make 53 curtains, the length of 53 curtain is expressed as;

1 curtain = 3feet

53 curtain = y

y = 53 *3

<em>y = 159 feet</em>

<em>Hence she will need 159 feet of fabric</em>

<em> </em>

8 0
3 years ago
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