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soldi70 [24.7K]
1 year ago
13

What is the area of this rectangle? 10units 20units 24units 48 units

Mathematics
1 answer:
aksik [14]1 year ago
4 0

Answer:

24 units ^2

Step-by-step explanation:

The base runs from 3 to 7 so the base is 7-3 = 4 units

The height runs from 2 to 8  so the height is 8-2 = 6 units

The area is

A = bh

   = 6*4 = 24 units ^2

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5.28 A manufacturer knows that on average 20% of the electric toasters produced require repairs within 1 year after they are sol
ahrayia [7]

Answer:

A) probability that at least x of them will require repairs is less than 0.5 is 4

Step-by-step explanation:

sample size, n = 20

p = success probability of toaster = 0.2

q = failure probability of toaster =1- p = 1- 0.2 =0.8

mean, , μ = n * p = 20 * 0.2 = 4

standard deviation, \sigma = \sqrt{npq} = \sqrt{(20 * 0.2 *0.8)} = 1.79

a) the probability that at least some of them require repairs < 0.5.

for p \geq 0.5 value of z = 0

we know z  =\frac{x -\mu}{\sigma}

0 = \frac{X -4}{1.79} from z table

X =  4

B)  SECOND PART IS INCOMPLETE { DATA IS INCOMPLETE}

5 0
3 years ago
A bulletin board can be covered completely by 30 square pieces of paper without any gaps or overlaps. If each piece of paper has
9966 [12]
Can you help me please I need help with a couple of questions
7 0
3 years ago
What is the largest sum your can get when you add 2 3 digit numbers
Ksju [112]
The biggest 3 digits whole number is 999.

Hence, the biggest sum one can do with two of those is 999+999=1998
8 0
3 years ago
Read 2 more answers
Solve for x <br> 3(2)^3x+1
lubasha [3.4K]

Answer:

24

Step-by-step explanation:

the simplified version of this expression would be 24 x  +  1

5 0
3 years ago
Divide 29 into two parts so that the sun of the squares of the parts is 425.Find the value of each Part.
Taya2010 [7]

Answer:

13 and 16

Step-by-step explanation:

let the 2 parts be x and y, then

x + y = 29 → (1) and

x² + y² = 425 → (2)

From (1) → x = 29 - y → (3)

substitute x = 29 - y into (2)

(29 - y)² + y² = 425 ( expand factor )

841 - 58y + y² + y² = 425 ( rearrange into standard form )

2y² - 58y + 416 = 0 ← in standard quadratic form

divide all terms by 2

y² - 29y + 208 = 0

Consider the factors of 208 which sum to - 29

These are - 13 and - 16, hence

(y - 13)(y - 16) = 0

equate each factor to zero and solve for y

y - 13 = 0 ⇒ y = 13

y - 16 = 0 ⇒ y = 16

substitute these values into (3)

x = 29 - 13 = 16 and x = 29 - 16 = 13

The 2 parts are 13 and 16


4 0
3 years ago
Read 2 more answers
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