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3 years ago

The table displays the amount of money Stephen has in his piggy bank.

Mathematics

1 answer:

Serggg [28]3 years ago

7 0

Answer:

The answer is 27%, 6/22, and 3/11.

Pls mark brainliest. :D

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Find the HCF of terms and factorise: 20x3 – 40x2 + 80x

sergiy2304 [10]

Answer:

The largest factor that can be pulled out of that expression is 20x, giving you 20x(x² - 2x + 4)

Step-by-step explanation:

20x³ - 40x² + 80x

= 20x(x² - 2x + 4)

6 0

3 years ago

Stainless steels are frequently used in chemical plants to handle corrosive fluids, however, these steels are especially suscept

Ira Lisetskai [31]

Answer: 95% confidence interval would be (0.344,0.456).

Step-by-step explanation:

Since we have given that

n = 295

x = 118

so, $\hat{p}=\dfrac{x}{n}=\dfrac{118}{295}=0.4$

At 95% confidence, z = 1.96

So, margin of error would be

$z\times \sqrt{\dfrac{p(1-p)}{n}}\\\\=1.96\times \sqrt{\dfrac{0.4\times 0.6}{295}}\\\\=0.056$

so, 95% confidence interval would be

$\hat{p}\pm \text{margin of error}\\\\=0.4\pm 0.056\\\\=(0.4-0.056,0.4+0.056)\\\\ =(0.344,0.456)$

Hence, 95% confidence interval would be (0.344,0.456).

6 0

4 years ago

Read 2 more answers

Write 0.001 as a fraction

svlad2 [7]

Answer: 1/1000

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

Paula completely covered a square wall using 87.5 ft2 of wallpaper without any overlap. Which measurement is closest to the side

Semmy [17]

The answer is B) 44ft

8 0

3 years ago

There are a total of 63 bikes, if ratio of blue bikes to Black is 4 to 5 how many bikes are blue

Alexus [3.1K]

Answer:

28 bikes are blue

Step-by-step explanation:

Set up the ratio:

Blue : Black

4 : 5

Find the total # of bikes in the ratio:

4 + 5 = 9

Find the relationship between 63 and 9:

63/9 = 7

Multiply both sides of the ratio by 7:

4(7) = 28

5(7) = 35

28 : 35

Therefore, the number of blue bikes is 28.

5 0

3 years ago