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DaniilM [7]
3 years ago
13

How many different prisms can you make using 18 centimetre cubes?

Mathematics
1 answer:
Strike441 [17]3 years ago
3 0
It depends on what the shape is
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You measure the weight of 38 bags of nuts, and find they have a mean weight of 78 ounces. Assume the population standard deviati
Ket [755]

Answer: The maximal margin of error is 4.822.

Step-by-step explanation:

Since we have given that

Number of bags = 38

Sample mean = 78 ounces

Standard deviation = 14.5 ounces

At 96% confidence interval for the true population mean bags of nut weight.

So, z = 2.05

As we know that formula for "Margin of error":

z\times \dfrac{\sigma}{\sqrt{n}}\\\\=2.05\times \dfrac{14.5}{\sqrt{38}}\\\\=4.822

Hence, the maximal margin of error is 4.822.

8 0
3 years ago
−6x + 14 < −28 OR 9x + 15 ≤ −12. solve for x.
sasho [114]

Answer:

x>7 or x ≤ -3

Step-by-step explanation:

Solving the 1st inequality

-6x +14 < -28 --------------- (Collect like terms)

-6x < -28 - 14

-6x < - 42 -------------------- (Divide both sides by -6)

Note: If you decide an inequality expression by a negative value, the inequality sign changes)

-6x/-6 > -42/-6

x > 7

Solving the 2nd inequality

9x + 15 ≤ −12 ----------- (Collect like terms)

9x ≤ −12 - 15

9x ≤ −27 ------------------(Divide both sides by 9)

9

9x/9 ≤ −27/9

x ≤ -3

Bring both results together, we get

x>7 or x ≤ -3

The final result is complex (i.e. can't be combined together).

4 0
3 years ago
Which of the following statements explains why 0.8 is or is not a rational number?
noname [10]

Answer:

a

Step-by-step explanation:

its 8 bc when u put it under 9 it repeats

7 0
3 years ago
Last week, Jamie counted the number of rice grains in his plate, and found he had 250
Reil [10]

30% decrease
175 divided by 250 = 0.7
1 - 0.7 = 0.3
0.3 = 30%
4 0
3 years ago
Find exact volume of a sphere with a radius of 10in
Elodia [21]

To find the volume of a sphere, we can apply the following formula:

(4

/3)πr^3

We know the radius is 10, so we can plug that value in.

(4/3) * pi * 10^3

<h3>V = 4188.79020479in^3</h3>

The question says "exact" volume, so I've included all of the digits in the tenths and beyond place, without rounding.

3 0
3 years ago
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