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zvonat [6]
3 years ago
7

Good Morning, Evening Or Night. I need some help with a question,

Mathematics
1 answer:
maw [93]3 years ago
6 0

Answer:

x-4 >10/x > 14

Step-by-step explanation:

move the 4 to the right side by adding 4 to 10

then graph like so

answers in the image below

hope this helps have a great day

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An index that is a standardized measure used in observing infants over time is approximately normal with a mean of 90 and a stan
weqwewe [10]

Answer:

The proportion of children that have an index of at least 110 is 0.0478.

Step-by-step explanation:

The given distribution has a mean of 90 and a standard deviation of 12.

Therefore mean, \mu = 90 and standard deviation, \sigma = 12.

It is given to find the proportion of children having an index of at least 110.

We can take the variable to be analysed to be x = 110.

Therefore we have to find p(x < 110), which is left tailed.

Using the formula for z which is p( Z < \frac{x - \mu}{\sigma}) we get p(Z < \frac{110 - 90}{12} = 1.67).

So we have to find p(Z ≥ 1.67) = 1 - p(Z < 1.67)

Using the Z - table we can calculate p(Z < 1.67)  = 0.9522.

Therefore p(Z ≥ 1.67) = 1 - 0.9522 = 0.0478

Therefore the proportion of children that have an index of at least 110 is 0.0478

8 0
3 years ago
3/4(5x - 3) + 8 = 17. <br>​
Olin [163]

Answer:

x=3

Step-by-step explanation:

8 0
3 years ago
(7s – 8s⁴ – 3) + (-4s – 6s⁴ – 2s²)
klasskru [66]

The simplified expression is: -14s⁴-2s²+3s-3.

First group all the like terms together.

(-8s⁴)+(-6s⁴)=-14s

-2s

7s+(-4s)=3s

-3

Then put the expression back together, starting with the term that has the largest exponent, then working your way down. You would then get: -14s⁴-2s²+3s-3.

4 0
3 years ago
Read 2 more answers
Pleas help i will mark branlist
koban [17]
D because your making the shape smaller 2 times
8 0
3 years ago
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