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labwork [276]
3 years ago
5

Please answer this question I will give you brainliest!​

Mathematics
1 answer:
romanna [79]3 years ago
4 0

circumference of circle= 2x3.14r

1) radius is 9

2x3.14x9

18x3.14= 56.52

2) radius is 8

2x3.14x8

16x3.14= 50.24

3) radius is 5

2x3.14x5

10x3.14= 31.4

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3. Which graph best represents the solution to the following system? (1 point)<br> (5x – 2y &lt;10
Step2247 [10]

Answer:

The graph in the attached figure

Step-by-step explanation:

The complete question is

Which graph best represents the solution to the following system?

5x - 2y < (less than or equal to) 10

x + y < 5

we have

5x-2y\leq 10 ----> inequality A

isolate the variable y

Adds 2y both sides

5x \leq 10+2y

Subtract 10 both sides

5x-10 \leq 2y

Divide by 2 both sides

2.5x-5 \leq y

Rewrite

y \geq 2.5x-5

The solution of the inequality A is the shaded area above the solid line

The equation of the solid line is y=2.5x-5

The slope of the solid line is positive m=2.5

The y-intercept of the solid line is (0,-5)

The x-intercept of the solid line is (2,0)

x+y < 5 -----> inequality B

Isolate the variable y

Subtract x both sides

y < -x+5

The solution of the inequality B is the shaded area below the dashed line

The equation of the dashed line is y=-x+5

The slope of the dashed line is negative m=-1

The y-intercept of the dashed line is (0,5)

The x-intercept of the dashed line is (5,0)

using a graphing tool

The solution of the system of inequalities is the shaded area between the solid line and the dashed line

see the attached figure

7 0
3 years ago
Surface area of a solid figure can be found by multiplying the area of the base by the height of the figure.
iVinArrow [24]

Answer:

Surface area of a solid figure can be found by multiplying the area of the base by the height of the figure.

<em><u>it's false </u></em>

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
The probability Bob guesses the winner of a certain baseball game is 4/5. The probability Joe independently guesses the winner o
Aleksandr [31]

SANA ALL SMART HAHAHAHHAAHHAHAAHA

6 0
3 years ago
A horizontal line is seven which of the following is true
nydimaria [60]

Answer:What are the answer choices??

Step-by-step explanation:

4 0
3 years ago
Please explain how to divide 1,344 by 24 using the box method? I know the answer is 56, but I am not sure how to get this answer
Maslowich

Answer:

Step-by-step explanation:

Given that divisor is 24 and dividend is 1344 and we are to use box method.

Long division is often considered one of the most challenging topics to teach. Luckily, there are strategies that we can teach to make multi-digit division easier to understand and perform.

The Box Method, or  the Area Model, is one of these strategies. It is a mental math based approach that will enhance number sense understanding. Students solve the equation by subtracting multiples until they get down to 0, or as close to 0 as possible.

For example this method is shown below:

I step is to find in multiples of 10 or 100 the greatest divisor

24) 1344( 500

      1200

      --------

        144

Step 2: Next step is to divide 144 by 24

24)144( 6

     144

      ----

         0

Thus we find that quotient is quotient in I step + quotient in 2nd step

= 50+6 = 56

and remainder is zero.

     

7 0
3 years ago
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