All categories

3 years ago

Whoever answers I WILL MARK BRANLIEST !!!

Mathematics

1 answer:

ohaa [14]3 years ago

3 0

Answer:

3. 7632

4. 485

Step-by-step explanation:

3. The only prime digit greater than 6 is 7, so that is the thousands digit. The only even prime is 2, so that is the ones digit.

In order for the number ending in 2 to be divisible by 4, the tens digit must be odd. The only odd numbers that have a double that is an even digit are 1 and 3. Since all digits must be different, the hundreds digit cannot be 2×1 = 2, but must be 2×3 = 6.

The number is 7632.

4. In order for an odd number to be divisible by 5, its ones digit must be 5, not 0. Then the tens digit is 5+3 = 8, and the sum of these two digits is 5+8 = 13. To make the total of digits equal to 17, the hundreds digit must be 17-13 = 4.

The number is 485.

You might be interested in

• Given the function, f(x) = x3 – 5x2 + 9x – 45, determine the number of roots and identify them.

dezoksy [38]

x3 - 5x2 + 9x - 45 = 0
It is a polynomial of degree three, therefore, it has three roots.
For this case, what we can do is factorize to write the polynomial in an easier way and thus be able to find the roots.
Factoring we have:
(x - 5) (x ^ 2 + 9) = 0
x = 5
x = 3i
x = -3i
Answer:
three roots:
x = 5
x = 3i
x = -3i

6 0

2 years ago

If 30 cookies will serve 10 students, how many cookies are needed for 15 students?

My name is Ann [436]

Answer:

45 cookies is needed for 15 students

4 0

3 years ago

1. Dole Pineapple Inc. is concerned that the 16-ounce can of sliced pineapple is being overfilled. Assume the standard deviation

Anna71 [15]

Answer:

Claim : The mean weight is greater than 16 ounces

$H_0:\mu = 16 \\H_a:\mu >16$

x = 16.05

n = 50

$\sigma = 0.03$

Since n > 30 and population standard deviation is given

So, we will use z test

$z=\frac{x-\mu}{\frac{\sigma}{\sqrt{n}}}$

Substitute the values

$z=\frac{16.05-16}{\frac{0.03}{\sqrt{50}}}$

$z=11.7851$

Critical value at 0.05 significance level is 1.645

z statistic > critical value

So, we reject the null hypothesis

So, we can conclude that the mean weight is greater than 16 ounces .

6 0

2 years ago

The regression equation relating attitude rating (x) and job performance rating (y) for the employees of a company is Ten pairs

Natalija [7]

Answer:

The correct option is 90.2.

Step-by-step explanation:

The general form of a least square regression line is:

$y=\alpha +\beta x$

Here,

y = dependent variable

x = independent variable

α = intercept

β = slope

The regression equation relating attitude rating (x) and job performance rating (y) for the employees of a company is:

$y=11.7+1.02x$

In this case the dependent variable is the job performance rating for the employees of a company and the independent variable is their attitude rating.

This implies that the for an employee of the company the job performance rating is based on their attitude towards work.

Compute the value of y for x = 77 as follows:

$y=11.7+1.02x$

$=11.7+(1.02\times 77)\\=11.7+78.54\\=90.24\\\approx90.2$

The predicted value of job performance rating for a person whose attitude rating is 77 is 90.2.

Thus, the correct option is 90.2.

4 0

2 years ago

Which is the best estimate for the product of 102.002 × 100,032.3

Oksi-84 [34.3K]

10,000,000. hope that helped. screw the kid who took your 10 points

8 0

3 years ago