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pogonyaev
2 years ago
12

What is the answer for 290 x 12 estimate

Mathematics
2 answers:
yanalaym [24]2 years ago
8 0

Answer:

3480

Step-by-step explanation:

Phantasy [73]2 years ago
8 0

Answer:

3480

Step-by-step explanation:

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Jasmine was asked to find the product of 14.8 and 3.65. Her work is shown below. Estimate: 15 × 4 = 60 Actual: 14.8 × 3.65 = 540
gogolik [260]

Answer:

0 Jasmine did not insert her decimal point correctly after multiplying the actual amount

0 Jasmine’s estimate and actual product don’t match closely enough.

8 0
3 years ago
A school group wants to rent part of a bowling alley to have a party. The bowling alley costs $500 to rent, plus an additional c
Firlakuza [10]

Answer:

If there are N students, the total cost will be:

C(N) = $500 + $5*N.

And we want the amount that each student pays to be equal or less than $15.

then:

C(N)/N ≤ $15.

Then the inequality that represents this situation is:

($500 + $5*N)/N ≤ $15.

Now, let's solve this:

($500 + $5*N) ≤ $15*N

$500 ≤ $15*N - $5*N

$500 ≤ $10*N

$500/$10 ≤ N

50 ≤ N

So the minimum number of students needed is 50.

7 0
3 years ago
Delia measured her bathtub to be 2 meters long. Which of these is an equivalent measurement?
snow_lady [41]
The answer would be D) 78.7 inches is equivalent to 2 meters. 
6 0
3 years ago
Lasers can provide highly accurate measurements of small movements. To determine the accuracy of such a laser, it was used to ta
sp2606 [1]

Answer: p-value \approx 0.01

Step-by-step explanation:

Hypothesis testing

\\\left\{\begin{matrix}H_0 : \mu_0 =0\\ H_1: \mu_0 \neq 0\end{matrix}\right.\\

For this problem, we need to use the t-student distribution to  make inference about the data. We calculate the t-statistics as below:

\bar{X} = 20\:\mu m\\S.E. = 60\:\mu m\\n=82\\t_{stat} = \frac{\bar{X}-\mu_0}{S.E/\sqrt{n}}=\frac{20-0}{60/\sqrt{82}}=3.0185

Using a t-statistics table, or using the function TDIST in Microsoft Excel with t_{stat} = 3.0185,\: df (degree\: of\: freedom) = 14 - 1 = 13 with two-tailed distribution, we obtain p-value \approx 0.01.

4 0
3 years ago
Rebecca is planting an orange grove that covers 32 acres she uses the same amount of ground space for each tree Rebecca plants 1
telo118 [61]
Area of the garden that 15 trees are planted will be:
Area=250×25=6250 ft²
but 1 acre= 43560 ft²
thus converting our area to acres we get:
6250/(43560)
=0.1435 acres
thus the population density will be:
(Population)/(area)
=15/0.1435
=104.544 trees/acre
4 0
3 years ago
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