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Anni [7]
4 years ago
10

does this set of ordered pairs represent a function?why or why not? (-5,-5),(-1,-2),(0,-2),(3,7),(8,9)

Mathematics
2 answers:
uranmaximum [27]4 years ago
6 0
Yes, because the x-axis are all different
swat324 years ago
5 0
Yes it does! look at the x-values (the first numbers) each x-value is only listed once. This means that it is a function because a function can only show each x-value once. For example 3 couldn't have been used twice. Hope this helps
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Evaluate the expression for x = 2 and y = 4. Enter your answer in the box.<br><br> 16x0 + 2x2 • y –1
swat32

Given that,

The given expression is : 16x^0+2x^2{\cdot}y^{-1}

To find,

The value of the above expression when x = 2 and y = 4

Solution,

We have,

16x^0+2x^2{\cdot}y^{-1}

Put x = 2 and y = 4 in the above expression.

16x^0+2x^2{\cdot}y^{-1}\\\\=16\times (2)^0+2(2)^2\times (4)^{-1}\\\\=16\times 1+2(2)^2\times\dfrac{1}{4}\\\\=16+2\\\\=18

So, the value of the above expression is 18.

6 0
3 years ago
Si se invierten $ 500 a una tasa de 5% anual. Hallar el valor futuro a 3 años si el interés es compuesto trimestralmente.
9966 [12]

Answer:

the future value is $5800.38

Step-by-step explanation:

Given that

The invested amount i.e present value is $500

The rate is 5 % per year so quarterly rate is 5% ÷ 4 = 1.25%

The time period is 3 per year so for quartely it is 3 × 4 = 12

We need to find out the future value

So as we know that

Future value = Present value × (1 + rate of interest)^time

= $500 × (1 + 0.0125)^12

= $580.38

hence, the future value is $5800.38

5 0
3 years ago
Yesterday, Carmen went on a bike ride. Her average speed was 8 miles per hour. Today, she went on another ride, this time averag
Ilya [14]

Answer: the expression for the combined total number of miles she biked in the two days is

117 - 5x miles

Step-by-step explanation:

Let x be the number of hours she biked yesterday.

In the two days, she biked for a combined total time of 9 hours. This means that the number of hours that she biked today is (9 - x) hours.

Distance = speed × time

Yesterday, Carmen went on a bike ride. Her average speed was 8 miles per hour. This means that the distance that she covered yesterday is 8x miles

Today, she went on another ride, this time averaging 13 miles per hour. This means that the distance that she covered today is 13(9 -x) miles.

An expression for the combined total number of miles she biked in the two days is

8x + 13(9 - x)

= 8x + 117 - 13x

= 117 - 5x

6 0
3 years ago
Look at the figure, . Find the m∠H .
kaheart [24]

Answer : The value of ∠H is 74°

Step-by-step explanation :

As we know that the opposite sides and opposite angles are equal in parallelogram.

That means,

Side MJ = Side FH

Side FM = Side HJ

∠MFH = ∠MJH

∠FHJ = ∠FMJ

As we are given that:

∠MJH = ∠MFH = 106°

Let ∠FHJ = ∠FMJ = x

As we know that the sum of interior angles of quadrilateral is equal to 360°.

∠MFH + ∠MJH + ∠FHJ + ∠FMJ = 360°

∠MFH + ∠MFH + ∠FHJ + ∠FHJ = 360°

2∠MFH + 2∠FHJ = 360°

2(∠MFH + ∠FHJ) = 360°

(∠MFH + ∠FHJ) = 180°

(106° + ∠FHJ) = 180°

∠FHJ = 180° - 106°

∠FHJ = 74°

Therefore, the value of ∠H is 74°

7 0
4 years ago
Read 2 more answers
Jackie wants to buy a digital camera that sells for $250. She has $120 saved. What percent of the cameras price has she saved?
taurus [48]
Answer: 48%

Divide 120 by 250 and you get .48, making it 48%
3 0
3 years ago
Read 2 more answers
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