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2 years ago

Which of the following expressions is equivalent to 4.4-3 (3/4+1.126)

Mathematics

1 answer:

sveticcg [70]2 years ago

6 0

Answer:

-3(6/8+9/8)+4 2/5

Step-by-step explanation:

You convert decimal, you find common denominator, calculate sum of distance, rewrite, write as fraction, it is long tiresome process.

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Arrie is planning her birthday party at a restaurant. She cannot spend more than $75 on the party. The cost per person for the m

sdas [7]

Answer:

A. 5

Step-by-step explanation:

12 times 5 is 60 plus 10 is 70. 70 < 75

4 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

Whoever answers these 6 area of composite shapes will get brainliest.

german

Answer:

80 mi²
63 in²
32 m²
44 cm²
59.5 ft²
48 km²

Step-by-step explanation:

Q1

8 x 4 + 12 x 4
32 + 48
80 mi²

Q2

5 x 3 + 12 x 4
15 + 48
63 in²

Q3

4 x 2 + 8 x 3
8 + 24
32 m²

Q4

10 x 4 + 2 x 2
40 + 4
44 cm²

Q5

5 x 2 + 11 x 4.5
10 + 49.5
59.5 ft²

Q6

3 x 1 + 9 x 5
3 + 45
48 km²

5 0

2 years ago

How do I solve this equation for x?

tester [92]

1) Divide both sides by 2
2x+12^2/3 =16

2) Solve the exponent
2x+12^2/3 =16

(2x+12^2/) ^3/2 =16^3/2 ( raise both sides to power)

2x+12 = 64

3) Subtract 12 from both sides
2x + 12 - 12 = 64-12

2x = 52

4) divide both sides by 2
2x/2 = 52/2

x = 26

Final answer : x = 26

7 0

3 years ago

If 5 pizzas cost $60, how much will 9 pizzas cost? 10

Alex73 [517]

Answer:

108

Step-by-step explanation:

do 60 divided by 5 and you get 12 so that = 1 pizza then do

12 x 9 to get 108

5 0

3 years ago

Read 2 more answers