What is the value of the expression 16 + 4 • 5 – 6 ÷ 2? A.
15

B.
14

C.
33

D.
22

Answers

Answer 1

Answer: c.33 because using the process of pemdas. 4×5 = 20. 16 + 20 - 6 ÷ 2. Then 6÷2 = 3. 16+ 20 - 3 = 33

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What is the mean of the set of numbers? –12, –4, 3, 7, 11

Answers

To find the mean, we need to add up all of the numbers, and then divide by the number of numbers...

–12, –4, 3, 7, 11 In the data set, there are 5 numbers...

(-12+(-4)+3+7+11)=5/5=1

Answer=1

Hi there! To find the mean we add up all of the data and then divide by how many numbers there are. In this case we have the numbers of -12, -4, 3, 7, and 11. -12+-4+3+7+11=5. Now, we divide by how many numbers there are. In this case we have 5 numbers of data. 5 divided by 5 equals 1. Therefore, the mean of the set of numbers is 1.

How many solutions does the equation have?

Answers

$4(2x+3)=2(3x-4)\n8x+12=6x-8\n2x=-20\nx=-10$

ERROR ANALYSIS Describe and correct the error in ﬁnding the x-intercept.-2x + 3y = 12

-2(0) + 3y = 12

3y = 12

y=4

Answers

The x-intercept is -6

Step-by-step explanation:

In order to find the x-intercept, we put y = 0 and to find the y-intercept we put x = 0

In the given method, x is put equal to zero instead of y as x-intercept had to be found.

Given equation is:

$-2x+3y=12$

$-2x + 3(0) = 12\n-2x +0 = 12\n-2x = 12$

Dividing both sides by -2

$(-2x)/(-2) = (12)/(-2)\nx = -6$

The x-intercept is -6

Keywords: Coordinate geometry, Intercepts

Learn more about intercepts at:

#LearnwithBrainly

Every 2 days Andy takes out the trash.Every 3 day he sweeps the kitchen.what is the least number of days that will pass before Andy will have to do both chores together on the same days?

Answers

Answer:

The least number of days that will pass before Andy will have to do both chores together on the same days are 5 days.

Step-by-step explanation:

Let us start from the initial day.

Every 2 days Andy takes out the trash.

So, the days he takes out trash are second day, fourth day, sixth day , eighth day , tenth day and so on.. (1)

Every 3 days Andy sweeps the kitchen.

So, the days he sweeps the kitchen are third day, sixth day , ninth day , twelfth day and so on.. (2)

Now, on comparing both equations (1) and (2) we see the first common day to both the chores is SIXTH DAY.

Hence, the least number of days that will pass before Andy will have to do both chores together on the same days are 5 days.

Choose the polygon that is a regular quadrilateral

Answers

"Regular quadrilateral" means it has four sides, and the
sides AND the inside angles are all equal.

-- The one at the upper left is a rhombus. All 4 of its sides
are the same length, and the first time I saw it, I picked it.
But then I remembered that in order to be 'regular', the
inside angles also have to be equal, and in a rhombus,
they're not.

-- The one in the lower right is a square. It has four sides,
they're all equal, and the inside angles are all the same too.
So the square is the only one that does the job for you.

Mathematical x4 - x2 ≥ 2x