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GREYUIT [131]
2 years ago
12

Which of the following lists of ordered pairs is a function? A.(2, 4), (3, 9), (4, 16), (5, 25) B.(0, 2), (4, 2), (0, –4), (4, –

2) C.(1, 1), (2, 3), (1, 5), (4, 7) D.(2, 4), (–2, 4), (3, 9), (–2, –4)
Mathematics
2 answers:
taurus [48]2 years ago
7 0

Answer: You're Answer will be A

Step-by-step explanation: It is the Answer

marta [7]2 years ago
3 0
A, is the answer because each input has one and only one output
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What is the answer for this math problem 4-4×7+3=
Varvara68 [4.7K]
4-4*7+3=4-28+3=-24+3=-21
8 0
3 years ago
For every three girls taking classes at a martial arts school, there are 4 boys who are taking classes. If there are 236 boys ta
Margaret [11]

Answer:

177 girls

Step-by-step explanation:

3:4     = girls:boys        

3:4     =    ?:236

3        =     ?

4        =      236

236 divided by 4 equals 59.

Multiply the number of girls by 59 to get your answer.

3*59=177

3:4          =               177:236

girls:boys                 girls:boys          

5 0
3 years ago
PLEASE HELP WILL GIVE BRAINLIEST!!!!
lyudmila [28]
For what?
You need to put the question...
5 0
3 years ago
Read 2 more answers
The marketing manager of a large supermarket chain would like to use shelf space to predict the sales of pet food. For a random
Pavlova-9 [17]

Answer:

m=\frac{27.75}{375}=0.074

Nowe we can find the means for x and y like this:

\bar x= \frac{\sum x_i}{n}=\frac{150}{12}=12.5

\bar y= \frac{\sum y_i}{n}=\frac{28.5}{12}=2.375

And we can find the intercept using this:

b=\bar y -m \bar x=2.375-(0.074*12.5)=1.45

So the line would be given by:

y=0.074 x +1.45

C. = 1.45 + 0.074x

Step-by-step explanation:

The data given is:

x: 5,5,510,10,10, 15,15,15, 20,20,20

y: 1.6,2.2,1.4, 1.9, 2.4,2.6, 2.3,2.7, 2.8,2.6, 2.9, 3.1

For this case we need to calculate the slope with the following formula:

m=\frac{S_{xy}}{S_{xx}}

Where:

S_{xy}=\sum_{i=1}^n x_i y_i -\frac{(\sum_{i=1}^n x_i)(\sum_{i=1}^n y_i)}{n}

S_{xx}=\sum_{i=1}^n x^2_i -\frac{(\sum_{i=1}^n x_i)^2}{n}

So we can find the sums like this:

\sum_{i=1}^n x_i = 150

\sum_{i=1}^n y_i =28.5

\sum_{i=1}^n x^2_i =2250

\sum_{i=1}^n y^2_i =70.69

\sum_{i=1}^n x_i y_i =384

With these we can find the sums:

S_{xx}=\sum_{i=1}^n x^2_i -\frac{(\sum_{i=1}^n x_i)^2}{n}=2250-\frac{150^2}{12}=375

S_{xy}=\sum_{i=1}^n x_i y_i -\frac{(\sum_{i=1}^n x_i)(\sum_{i=1}^n y_i)}{n}=384-\frac{150*28.5}{12}=27.75

And the slope would be:

m=\frac{27.75}{375}=0.074

Nowe we can find the means for x and y like this:

\bar x= \frac{\sum x_i}{n}=\frac{150}{12}=12.5

\bar y= \frac{\sum y_i}{n}=\frac{28.5}{12}=2.375

And we can find the intercept using this:

b=\bar y -m \bar x=2.375-(0.074*12.5)=1.45

So the line would be given by:

y=0.074 x +1.45

C. = 1.45 + 0.074x

8 0
3 years ago
What is the division expression for 5/11
Ivenika [448]

Answer:

5 divide 11

Step-by-step explanation:

5 divide 11

3 0
3 years ago
Read 2 more answers
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