If f(x) = 3x + 2, find f(4)

Answers

Answer 1
Answer: f(4)=3(4)+2
f(4)=12+2
f(4)=14

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A regular octagon has sides measuring about 4cm. If the octagon is divided into 8 congruent triangles, each has a height of 5 cm. What is the area of the octagon?

Answers


Base of each triangle = about 4 cm
Height of each triangle = 5 cm

Area of each triangle = (1/2) (base) (height)
and there are 8 of them.

Total area = (8) x (1/2) x (base) x (height) =

                       (4) x (about 4 cm) x (5 cm) = about 80 cm² .

 
The area of a triangle is 1/2*base*height

So, do that for one of the triangles, since they're all the same 1/2*4*5=10cm squared

Multiply by 8 to find the total

10*8=80

80 cm squared.

Lowest common factor 12 and 9

Answers

The LCM (Lowest Common Factor) of 12 and 9 is 36.
The LCF is 36. It's because if you multiply 12*3= 36 and 9*4=36.

Which sets of numbers are closed under subtraction?Choose all answers that are correct.
A.
odd natural numbers
B.
rational numbers
C.
{0, 1}
D.
{0, 1, 2}
sorry for bugging you i just don't get it

Answers

The answer is:

B.
rational numbers

Because if you perform subtraction in a set of rational numbers, the result you get would still be a rational number.

This does not apply to the other sets.

What is the value of the function at x = 2?

Enter your answer in the box.

Answers

Answer:

y = - 3

Step-by-step explanation:

Locate x = 2 on the x- axis, then go down vertically until the line is met.

Then read the corresponding y- coordinate at this point.

When x = 2 the value of the function is y = - 3

Answer:

-3

Step-by-step explanation:

We are given that a  graph.

We have to find the value of the function at x=2.

To find the value of function at x=2 we will find the value of y corresponding to x=2 by drawing  a vertical line x=2

The given graph is the graph of a  line.

We can see that when we draw a vertical line x=2 and parallel to y- axis.

Then, the vertical  line x=2 cut the given line at pint (2,-3).

Therefore, the intersection point of line x=2 and the given line is (2,-3).

The value of y corresponding to x=2 is -3.

We know that y=f(x)

f(2)=-3

Therefore, the value of the given function at x=2 is -3.

Hence, the value of the function at x=2 is -3.

Matthew used 1/5 of a box of flour for cooking and 3/4 of the remainder to make bread. The rest of the flour was packed equally into 5 containers. What fraction of the total amount of flour was in each container?

Answers

Matthewused 1/5 of a box of flour for cooking.
=> Let’s convert this to decimals.
=> 1/5 = 0.2

Next, ¾ of the flour remainder is for the making bread
=> ¾ = .75

The rest are equally divided into 5 containers. Now, we need to find the totalamount of flour used in each container.
=> Let’s add first the first 2 fractions converted to decimals.
=> 0.2 + .75 = 0.95
=> 1.00 – 0.95 = 0.05
=> 0.05 / 5 = 0.01 => total amount of flour in each container.





If you would like to know what fraction of the total amount of flour was in each container, you can calculate this using the following steps:

used 1/5 of a box of flour for cooking:
1 - 1/5 = 5/5 - 1/5 = 4/5 remained
3/4 of the remainder to make bread:
4/4 - 3/4 = 1/4
1/4 of 4/5 = 1/4 * 4/5 = 1/5 of the box of flour remained

packed equally into 5 containers:
1/5 / 5 = 1/5 * 1/5 = 1/25 of the box of flour was put into each container

Result: 1/25 of the total amount of flour was in each container.

Rounding these numbers to the nearest 100340
666
985
1902
2771
7540
9999

Answers

Here this might help you use this method numbers below 5 or higher the number changes all the other numbers 0 but 5 or higher changes them to the next number.
340=300
666=700
985=1000
1902=2000
2771=3000
7540=8000
9999=10000

Answer:

rounded to the nearest hundredth

340 = 300

666 = 700

985 = 1,000

1902 = 1,900

2771 = 2,800

7540 = 7,500

9999 = 10,000

Step-by-step explanation:

estimation