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2 years ago

Which statements describes 3/8 * 4/9 with groups of 8 or 3

Mathematics

2 answers:

N76 [4]2 years ago

7 0

3*4*8*9*3*4*9*3

Hope this helped....

Daniel [21]2 years ago

7 0

Hi there!

Well to solve this problem we obviously need to multiply 3/8 by 4/9,

3/8*4/9=12/72

3 groups of 4/9 bascially means 3*4/9

3*4/9=12/9

Divide by 8,

12/9/8=12/9*1/8=12/72

Thus, As I divided into 3 groups of 4/9 which is 3/9*4/8

Hoped I helped. :)

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What is m Help please!

Stels [109]

9514 1404 393

Answer:

40°

Step-by-step explanation:

The similarity statement tells you that angles W and P have the same measure. The sum of angles in the triangle is 180°, so we have ...

∠R +∠W +∠T = 180°

85° +55° +∠T = 180°

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2 years ago

Help plz solve these equations by completing the square <br><br>x square + 12x =1

Hitman42 [59]

Answer:

x = - 6 ± $\sqrt{37}$

Step-by-step explanation:

Given

x² + 12x = 1

To complete the square

add ( half the coefficient of the x- term )² to both sides

x² + 2(6)x + 36 = 1 + 36

(x + 6)² = 37 ( take the square root of both sides )

x + 6 = ± $\sqrt{37}$ ( subtract 6 from both sides )

x = - 6 ± $\sqrt{37}$ ← exact solutions

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2 years ago

Does anyone know the step by step for this 9(m +5) - 3(m - 2) = 8m + 31

tigry1 [53]

<h3>Answer :</h3>

<u>Given</u> :

9(m + 5) - 3(m - 2) = 8m + 31

We have to find value of m $.$

➠ 9(m + 5) - 3(m - 2) = 8m + 31

➠ 9m + 45 - 3m + 6 = 8m + 31

➠ 9m - 3m + 45 + 6 = 8m + 31

➠ 6m + 51 = 8m + 31

➠ 51 - 31 = 8m - 6m

➠ 20 = 2m

➠ m = 20/2

➠<u> m = 10</u>

<h3>Hope It Helps!</h3>

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2 years ago

Read 2 more answers

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Nadusha1986 [10]

Answer: Clorox, wet wipes, and water

Step-by-step explanation:

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3 years ago

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It is believed that a stock price for a particular company will grow at a rate of $5 per week with a standard deviation of $1. A

IgorLugansk [536]

Answer:

Step-by-step explanation:

We would set up the hypothesis test. This is a test of a single population mean since we are dealing with mean

For the null hypothesis,

µ = $5

For the alternative hypothesis,

µ < $5

number of samples taken = 10

Sample mean, x = (4 + 3 + 2 + 3 + 1 + 7 + 2 + 1 + 1 + 2)/10 = 2.6

To determine sample standard deviation, s

s = √(summation(x - mean)/n

n = 12

Summation(x - mean) = (4 - 2.6)^2 + (3 - 2.6)^2 + (2 - 2.6)^2 + (3 - 2.6)^2 + (1 - 2.6)^2 + (7 - 2.6)^2 + (2 - 2.6)^2 + (1 - 2.6)^2 + (1 - 2.6)^2 + (2 - 2.6)^2 = 30.4

s = √30.4/10 = 1.74

Since the number of samples is 10 and no population standard deviation is given, the distribution is a student's t.

Since n = 10,

Degrees of freedom, df = n - 1 = 10 - 1 = 9

t = (x - µ)/(s/√n)

Where

x = sample mean = 2.6

µ = population mean = 5

s = samples standard deviation = 1.74

t = (2.6 - 5)/(1.74/√10) = - 4.36

We would determine the p value at alpha = 0.05. using the t test calculator. It becomes

p = 0.000912

7 0

2 years ago