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2 years ago

Show work for repeated subtraction to divide 35÷4

1 answer:

7 0

35/4

You'd start by dividing 4 into 3. Since three is smaller it will not work. So you then divide it into 35. 35/4=8.75

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If the perimeter of a rectangle is 34 cm and the area is 60 square cm, then what are the dimensions of the

Yuki888 [10]

Answer: 12 by 12 by 5 by 5

Step-by-step explanation: 12*5 = 60

12+12+5+5

=34

8 0

3 years ago

Michiko bought pens for $3.85 and pencils for $1.25 how much did she spend all together?

seropon [69]

Answer:

5.1 :)

Step-by-step explanation:

3 0

2 years ago

The owners of Shaving Ice are concerned that many of their customers are starting to purchase their icy treats from Cold as Ice

harkovskaia [24]

Answer:

The correct option is;

$4\pm 2.63}\sqrt{\frac{3.2^{2}}{100}+\frac{2.1^{2}}{100}}$

Step-by-step explanation:

Here we have the formula for the confidence interval of the difference of two means where the population standard deviation is unknown based on the sample mean and sample standard deviation is given as follows;

$\left (\bar{x}_{1}- \bar{x}_{2} \right )\pm t_{\alpha /2}\sqrt{\frac{s_{1}^{2}}{n_{1}}+\frac{s_{2}^{2}}{n_{2}}}$

Where:

$\bar{x}_{1}$ = Mean of the first sample = 22 grams

$\bar{x}_{2}$ = Mean of the second sample = 18 grams

s₁ = Sample standard deviation of the first sample = 3.2 grams

s₂ = Sample standard deviation of the second sample = 2.1 grams

n₁ = Sample size of the first sample = 100

n₂ = Sample size of the second sample = 100

$t_{\alpha /2}$ = t value obtained from tables at 99% confidence level and 100 degrees of freedom = 2.626 = 2.63

Therefore, plugging in the values, we have;

$\left (22- 18 \right )\pm 2.63}\sqrt{\frac{3.2^{2}}{100}+\frac{2.1^{2}}{100}} = 4\pm 2.63}\sqrt{\frac{3.2^{2}}{100}+\frac{2.1^{2}}{100}}$

Therefore, the correct option is $4\pm 2.63}\sqrt{\frac{3.2^{2}}{100}+\frac{2.1^{2}}{100}}$ .

4 0

3 years ago

In an exponential function of the form f(x) = ab", a is the

marta [7]

Answer:

Step-by-step explanation:

pls give brainlest

5 0

2 years ago

If apples cost £1.25 per killogram. How much will 6 kilogram cost?

pochemuha

Your answer will be 7.50. What I did was take 1.25 and times it by 6.

5 0

3 years ago