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IRISSAK [1]
2 years ago
9

Is this a function????!

Mathematics
1 answer:
babymother [125]2 years ago
6 0
Yes it is a function
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If b+3/7=2/5 then which of the following is true
spin [16.1K]
Let multiply by 35 both sides of the equation
35b+35*3/7=35*2/5
35b+15=14
There are all false

7 0
4 years ago
Find the equation of a line that have the same slope as Y= 6-3x and the same Y intercept as Y=-7X -10
choli [55]

Answer:

y = -3x -10

Step-by-step explanation:

6 0
3 years ago
What is the difference between an approximate answer and exact answer
ASHA 777 [7]
An example would be  1/3  as an exact answer  and 0.33 as an approximate answer because 1/3 = 0.333.....  - a recurring decimal where there are an infinite number of 3's. 0.33 would be correct to the nearest hundredth.

Radicals are exact answers :- like  √2 , √5 .  Approximate value for √2 is 1.414
5 0
4 years ago
Read 2 more answers
The number of square feet per house is normally distributed with a population standard deviation of 154 square feet and an unkno
11111nata11111 [884]

Answer: (1500.66,1599.34)

Step-by-step explanation:

Confidence interval for population mean:

\overline{x}\pm z^*\dfrac{\sigma}{\sqrt{n}}

,where \overline{x} = Sample mean , n= Sample size, z* = critical two tailed z-value , \sigma = population standard deviation.

As per given , we have

n= 16

\sigma = 154 square feet

\overline{x}= 1550 square feet

\alpha= 1-0.80 = 0.20

Critical z-value = z_{\alpha/2}=z_{0.2/2}=z_{0.1}=1.2815

Confidence interval for population mean:

1550\pm (1.2815)\dfrac{154}{\sqrt{16}}\\\\ = 1550\pm (1.2815)\dfrac{154}{4}\\\\= 1550\pm 49.33775\\\\ =(1550-49.33775,\ 1550+49.33775)\\\\\approx (1500.66,\ 1599.34)

Required confidence interval:  (1500.66,1599.34)

6 0
3 years ago
Graph the image of this figure after a dilation with a scale factor of 2 centered at the origin.
pshichka [43]

Answer:

(2,4), (6,4), (2,-2), (6,-2)

Step-by-step explanation:

To dilate a figure multiply 2(x,y)

2(1,2)  = (2,4)

2(3,2) = (6,4)

2(1,-1) = (2,-2)

2(3,-1) = (6,-2)

Hope this helps!   Ξ

3 0
3 years ago
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