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irina [24]
2 years ago
5

What is 12.4% of 250 :Step by step explanation Please​

Mathematics
1 answer:
Aleks04 [339]2 years ago
3 0

Answer:

12.4 percent of 250 is 31

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(a) Jane pumped 54 gallons of water out of her pool. This was done over a period of 9 minutes at
STALIN [3.7K]
Answer: -6
Step-by-step explanation:
From the question, Elsa pumped 18 gallons of water out of her pool and this was done over a period of 3 minutes at a constant rate. Since it is done at a content rate, to get the change in the amount of water in the pool each minute, we divide 18 gallons by 3. This can be written mathematically as:
= 18 gallons ÷ 3
= 6 gallons
Change = -6
The change in the amount of water in the pool each minute will be -6gallons hope this helps
6 0
3 years ago
Read 2 more answers
What is the area of the triangle? ​
vladimir2022 [97]

Answer:

10

Step-by-step explanation:

1/2×(-2-(-7))×(6-(-4))

5 0
3 years ago
For i≥1 , let Xi∼G1/2 be distributed Geometrically with parameter 1/2 . Define Yn=1n−−√∑i=1n(Xi−2) Approximate P(−1≤Yn≤2) with l
murzikaleks [220]

Answer:

The answer is "0.68".

Step-by-step explanation:

Given value:

X_i \sim \frac{G_1}{2}

E(X_i)=2 \\

Var (X_i)= \frac{1- \frac{1}{2}}{(\frac{1}{2})^2}\\

             = \frac{ \frac{2-1}{2}}{\frac{1}{4}}\\\\= \frac{ \frac{1}{2}}{\frac{1}{4}}\\\\= \frac{1}{2} \times \frac{4}{1}\\\\= \frac{4}{2}\\\\=2

Now we calculate the \bar X \sim N(2, \sqrt{\frac{2}{n}})\\

\to \frac{\bar X - 2}{\sqrt{\frac{2}{n}}}  \sim  N(0, 1)\\

\to \sum^n_{i=1}  \frac{X_i - 2}{n}  \times\sqrt{\frac{n}{2}}}  \sim  N(0, 1)\\\\\to  \sum^n_{i=1}  \frac{X_i - 2}{\sqrt{2n}}  \sim  N(0, 1)\\

\to Z_n = \frac{1}{\sqrt{n}} \sum^n_{i=1} (X_i -2) \sim N(0, 2)\\

\to P(-1 \leq X_n \leq 2)  = P(Z_n \leq Z) -P(Z_n \leq -1) \\\\

                               = 0.92 -0.24\\\\= 0.68

6 0
3 years ago
#1) What is the measure of ∠TVU, and why?
mrs_skeptik [129]

1) Answer: A

because trangles RST is similar  to VUT as:

<RST=<VUT=55 (Angle)

<RTS=<VTU=90 (it seems right angled)  Angle

So by AA similarity...(two angles similarity is enough)

2) Answer:B

y+z=x because exterior angle of a triangle (which is x) must be equal to sum of non-adjacent (y and z) interior angles.

3) Answer: A should be right choice. Step 1 is wrong here which is,

m<m + m<n + m<p=180 (wrong)

It should be:

m<m + m<n + m<0=180 (right)




3 0
3 years ago
4x - 6 = 30 can you solve it
olya-2409 [2.1K]

Answer:

x = 9

Step-by-step explanation:

take -6 to the other side so you add it to 30 = 36

equation is now 4x = 36

divide 4/4 and 36/4

x = 9

6 0
3 years ago
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