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3 years ago

Is the answer C or D? Please explain as well so I can understand

Mathematics

1 answer:

OlgaM077 [116]3 years ago

8 0

Answer:

Step-by-step explanation:

i think it's correct and helping you

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WHOEVER ANSWERS 1ST AND HAS CORRECT ANSWER WILL GET MARKED AS BRAINILIEST

Dovator [93]

It is C. Associative property of multiplication

3 0

3 years ago

Question 7 of 12. Step 1 of 1

Ostrovityanka [42]

Answer:

Step-by-step explanation:

Sorry for messy working out

5 0

4 years ago

2(4.r + 3) = 7x+5 (SHOW WORK)

KatRina [158]

Answer: r=7x-1/8

Step-by-step explanation:

2(4r+3)=7x/2+5/2

4r+3=7x+5/2

4r+3-3=7x+5/2 -3

4r=7x+5/2 -3

4r/4= 7x-5/2/4 -3/4

r=7x-1/8

6 0

3 years ago

Select the multiplication sentence that applies the associative property of multiplication to the example. Example: 6 × (4 × 2)

Sliva [168]

answer : D

A. (6 × 7) + 6 = 48

Associative property of multiplication . Here we have +6 . there is a + sign inbetween. so it does not comes under Associative property of multiplication

B. 6 × (4 + 2) = 36

Here we have 4 +2 . there is a + sign inbetween. so it does not comes under Associative property of multiplication

C. (6 + 4) × 2 = 20

Here we have 6 + 4 . there is a + sign inbetween. so it does not comes under Associative property of multiplication

D. (6 × 4) × 2 = 48

Here we have 6 times 4 times 2. so it comes under Associative property of multiplication

4 0

4 years ago

Based on a survey, assume that 43% of consumers are comfortable having drones deliver their purchases. Suppose that we want to

lutik1710 [3]

Answer:

The probability that exactly three of them are comfortable with delivery by drones is 0.2583.

Step-by-step explanation:

Let X = number of consumers comfortable having drones deliver their purchases.

The probability of the random variable X is, P (X) = p = 0.43.

Then q is, q = 1 - p

A sample of n = 5 consumers are selected.

The random variable X follows a Binomial distribution with parameters n and p.

The pmf of X is:

$P(X=x)={n\choose x}p^{x}(1-p)^{n-x};\ x=0,1,2,3...$

Compute the value of P (X = 3) as follows:

$P(X=3)={5\choose 3}0.43^{3}(1-0.43)^{5-3}\\=10\times 0.079507\times 0.3249\\=0.258318\\\approx0.2583$

Thus, the probability that exactly three of them are comfortable with delivery by drones is 0.2583.

6 0

3 years ago