All categories

3 years ago

Estimate the sum.

Mathematics

1 answer:

Rudik [331]3 years ago

5 0

5.89 can be rounded up to 6

7 1/12 can be rounded down to 7

therefore you can estimate by doing

6 + 7

the answer to that is 13!

have a lovely day x

You might be interested in

A normal distribution has a mean of 50 and standard deviation of 5. Which value produces a negative z-score?

zimovet [89]

Answer:

$x\:$ .

Step-by-step explanation:

The z-score for a normal distribution is calculated using the formula:

$Z=\frac{x-\mu}{\sigma}$ .

From the question, the distribution has a mean of 50.

$\implies \mu=50$ and the standard deviation is $\sigma=5$ .

For a z-score to be negative, then, $\frac{x-\mu}{\sigma}\:$ .

$\frac{x-50}{5}\:$ .

$x-50\:$ .

$x\:$ .

$\therefore x\:$ .

Any value less than 50 will produce a negative z-score

8 0

4 years ago

How many months of the year have 28 days??

My name is Ann [436]

All 12 months have 28 days in it.
because every month has 28 days ( February) or more number of days like the other months(Jan, Mar..)

4 0

3 years ago

Find the measure of the Angle? (Hint not the value of x)<br> 5x +2<br> 4x +17

Anna [14]

Answer:

$240 {}^{}$

......

7 0

3 years ago

A certain aircraft carrier has enough food and supplies to serve 1,633,500 meals over a period of 90 days. Which of the followin

frutty [35]

The most reasonable estimate for 90 days is B. 2 × $10^{6}$ meals.

Explanation:

The aircraft carrier can serve 1,633,500 meals over a period of 90 days.

The given values are A. 2 × $10^{7}$ , B.2 × $10^{6}$ , C.2 × $10^{-7}$ , D.2 × $10^{-6}$ . All the given values are in the range of 2 so it will only logical if we round off the value we have too. We round off 1,633,500 to 2,000,000.

Suppose you multiply 2 with 100 you get 100, 2 multiplied with 100 is represented by 2 × $10^{2}$ so the power to which 10 is raised represents the number of zeros in the resulting value i.e. 10 is raised to the power of 2 so the resulting answer has 2 zeroes.

Options C and D have negative powers so they will equal decimal values so only options A and B could be the answer. Since there are 6 zeroes in 2,000,000 which is equal to 2 × $10^{6}$ . So the answer is option B.

6 0

3 years ago

Write the equation of the line that passes through the points (1, 7) and (5, 15) using function notation.

Pepsi [2]

Answer:

Option C is correct.

The equation of line is , f(x)=2x+5

Step-by-step explanation:

Point slope intercept form: For any two points $(x_1, y_1)$ and $(x_2, y_2)$ then,