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3 years ago

An Explanation Or Answer?

Mathematics

2 answers:

Delicious77 [7]3 years ago

6 0

4x + 1 ≥ 5
x≥1
Answer: {1, 2, 3}

ehidna [41]3 years ago

3 0

Answer:

its B

Step-by-step explanation:

1,2,3,

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Round 1.5 to one decimal place

xxMikexx [17]

If the last digit in 1.50 is less than 5, then remove the last digit.

If the last digit in 1.50 is 5 or more and the second to the last digit in 1.50 is less than 9, then remove the last digit and add 1 to the second to the last digit.

If the last digit in 1.50 is 5 or more and the second to the last digit in 1.50 is 9, then remove the last digit, make the second to last digit 0, and add 1 to the number to the left of the decimal place.

When rounding 1.50 to one decimal place we use One Decimal Place Rule #1. Therefore, the answer to "What is 1.50 rounded to 1 decimal place?" is:

1.5

3 0

3 years ago

Read 2 more answers

What is the product of (4x+3)(-2x-5)

yuradex [85]

Use the FOIL method

First 4x × -2x = -8x^2
Outside 4x × -5 = -20x
Inside 3 × -2x = -6x
Last 3 × -5 = -15

-8x^2 - 20x - 6x -15 =

Combine like terms

-8x^2 -26x -15

8 0

4 years ago

Read 2 more answers

Mike can jog 3 3/5 miles in 9/10 hour. Find his average speed in miles per hour.

zepelin [54]

Answer: 25

Step-by-step explanation:

Turn numbers into whole numbers 3 3/5= 3.60 & 9/10=90

so 90/3.60=25.

Hope this helps!

7 0

3 years ago

Read 2 more answers

A bag contains eleven equally sized marbles, which are numbered. Two marbles are chosen at random and replaced after each select

Digiron [165]

Answer:

B. $\frac{24}{121}$ .

Step-by-step explanation:

Total number of marbles = 11.

Since, after choosing the first marble, we are putting it back and then the second marble is chosen.

As, there are 4 shaded marbles.

So, the probability of getting the first marble shaded = $\frac{\binom{4}{1}}{\binom{11}{1}}$ = $\frac{4}{11}$

Also, there are 6 odd labeled marbles.

So, the probability of getting the second marble being odd labeled = $\frac{\binom{6}{1}}{\binom{11}{1}}$ = $\frac{6}{11}$

So, the probability of getting the first marble shaded and second marble labeled odd = $\frac{4}{11}\times \frac{6}{11}$ = $\frac{24}{121}$ .

Hence, the required probability is $\frac{24}{121}$ .

4 0

3 years ago

Read 2 more answers

I dont understand how to find Which ordered pair is a solution of the equation? y=8x+3

WARRIOR [948]

Answer:

Step 1:

To find ordered pair solutions, you could create an x and y graph and fill out the x side. Then, plug in an x number to get your y number and graph the ordered pairs to see if they give you a straight line. I'm going to use these numbers: -1, 0, 1, and 2.

$...x...|...y...$

$\left[\begin{array}{ccc}-1&?\\0&?\\1&?\\2&?\end{array}\right]$

Now, let's plug in -1 into the equation first to see what we get for y.

$y=8(-1)+3\\y=-8+3\\y=-5\\(-1,-5)$

-5 is our y if x was -1.

We do the same for the other three numbers.

$y=8(0)+3\\y=0+3\\y=3\\(0,3)$

$y=8(1)+3\\y=8+3\\y=11\\(1,11)$

$y=8(2)+3\\y=16+3\\y=19\\(2,19)$

Step 2:

With all that done, we can now fill out our table and graph the points.

$....x...|...y....$

$\left[\begin{array}{ccc}-1&-5\\0&3\\1&11\\2&19\end{array}\right]$

If you graph these points on graph paper / a graphing website, you will see that these points go in a straight line. If you are given an ordered pair already (for example: (3,5)), then all you have to do is plug in the x into the equation (3) and see if the outcome is true (5).

$5=8(3)+3\\5=24+3\\5\neq 27$

Since they don't equal each other, then (3,5) is false.

Here is the graph for the table above. I hope I helped you!

8 0

3 years ago