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arlik [135]
3 years ago
11

Spiral Review (CC5,NBT.2. CC.S.NBT.6, CC,S.DVF. 1)

Mathematics
1 answer:
kotegsom [21]3 years ago
5 0

Answer:

The answer is A

Step-by-step explanation:

(2*38)=76

(2*2)=4

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It has been determined that 60% of the people in a certain midwest city who are responsible for preparing the evening meal have
natali 33 [55]

Answer:

Random sample, np \geq 10 and n(1-p) \geq 10, so yes, both conditions were satisfied.

Step-by-step explanation:

60% of the people in a certain midwest city who are responsible for preparing the evening meal have no idea what they are going to prepare as late as 4PM in the afternoon.

This means that p = 0.6

A recent survey was conducted from 1000 of these individuals.

This means that n = 1000

Also, a random sample, so the first condition was satisfied.

The sample size must be large (so that at least 10 or more successes and failures).

np = 1000*0.6 = 600 \geq 10

n(1-p) = 1000*0.4 = 400 \geq 10

So yes, both conditions were met.

4 0
3 years ago
Find the minimum value of the function f(x) = 2x2 – 17.3x + 32 to the nearest<br> hundredth.
Klio2033 [76]

Answer:

5600.014

= 5000 + 600 + 0.010 + 0.004

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Step-by-step explanation:

5 0
3 years ago
2.5 m<br> 9 m<br> 1<br> 24 m<br> Work out the perimeter.
deff fn [24]

Step-by-step explanation:

thirty six point five(36.5)

7 0
3 years ago
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Enter the value for x that makes the equation 1/2 (4x+12)+5x=30 true.
8090 [49]
First, distribute the (1/2) into (4x+12) by multiplying them.

The equation becomes:

2x + 6 + 5x = 30

On the left side, combine “like terms” through addition.

7x + 6 = 30

Subtract 6 from both sides:

7x = 24

Finally, get x alone by dividing both sides by 7:

x = 24/7, or if you wanted to round the decimal answer, it’s about 3.429.
8 0
3 years ago
about 30% of the population is left-handed. If two people are random selected what is the probability that both are left handed?
Svetradugi [14.3K]

Answer:

0.91

Step-by-step explanation:

1 - P(both left handed)

1 - 0.3² = 0.91

4 0
3 years ago
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