Evaluate the expression: 16.2 x 2 + 1/2 x 8.5 x 12

Answer:

what is the question? where is the diagram?

Answer:

62.8   If rounded to the nearest hundredth it is 62.80

Step-by-step explanation:

1.  Formula for circumference of a cirlcle is 2 (pi) r  where for this problem,

2 =2,

pi= 3.14 and

r= 10 (1/2 of the diameter =radius)

2.   2 x 3.14 x 10

multiply all 3 numbers above, you get 62.8

3. Depending on your teacher or the test,

62.8 is your answer, if it HAS to be to the nearest hunderedth, and it's on a specific program, it might want you to enter the "0" at the end   62.80

Answer:

A

Step-by-step explanation:

Easy method for this question is to plug the point (-1,7)

Plug -1 as x and hope we can get 7

[tex]y =-2(-1+1)^{2}+7\\y=7\\[/tex]

Answer:

27 cm

Step-by-step explanation:

Answer:

AC = 8

Step-by-step explanation:

AC = 4x + 8

BE = x + 2

x + 2 = x + 2

2x = 2 - 2

2x = 0

2x\2 = 0/2

x = 0

AC = 4x + 8

AC = 4(0) + 8

AC = 0 + 8

AC = 8

When the AC= 4x + 8 and BE = x + 2, so the length of diagonal AC is to be considered as the 8.

Since

AC = 4x + 8

BE = x + 2

Now

x + 2 = x + 2

2x = 2 - 2

2x = 0

x = 0

Now

AC = 4x + 8

AC = 4(0) + 8

AC = 0 + 8

AC = 8

hence, the length of diagonal AC is to be considered as the 8.

Learn more about length here; https://brainly.com/question/24417940

Answer:

your answer will be Isosceles trapezoid

Step-by-step explanation:

^_^

Answer:

72

Step-by-step explanation

Answer: 16%

Step-by-step explanation:

168.2 - 145 = 23.2

23.2/145 = 0.16

0.16 as a percent is 16%

The percentage change of the height is A = 16 %

A percentage is a number or ratio expressed as a fraction of 100. It is often denoted using the percent sign, %

The difference between an exact value and an approximation to it is the approximation error in a data value. Either an absolute error or a relative error might be used to describe this error.

Percentage change is the difference between the measured value and the true value , as a percentage of the true value

Percentage change =( (| Measured Value - True Value |) / True Value ) x 100

Given data ,

Christian's height increased by

168.2 - 145 = 23.2 cm

To find the percentage increase, we need to divide the increase by the original height and then multiply by 100:

Percentage increase = (23.2 / 145) x 100%

Percentage increase = 0.16 x 100%

Percentage increase = 16%

Hence , Christian's height increased by 16%

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Answer:

5

Step-by-step explanation:

2 + 2+ + 13

2 + 15 + x 2

Combine like terms

2 + 1 5 + 3 +15

ok now when u get that answer u will get a different equation wich is

3 + 15

usually we can solve this by dividing 3 from both sides... 3x/3 = 15/3, getting x=5 as your answer.

answer-

x=4,-2

Step-by-step explanation:

Answer:

X= 82°

Step-by-step explanation:

Since we know ∠DAB is 41°, we also know that ∠CBA is 41°, since they must be equal.  This tells us that the bottom angle of that triangle must be 98°, since the sum of all interior angles must equal 180°.  Since this angle is supplementary to x, we know that x must equal 82°.

Answer:

400 cm

I found the answer on Quizizz lol, I had the same question for a review :/ I still don't know how they got the answer though

The  volume of Alina’s model in cubic centimeters when the side is 10 so here the volume should be considered as the 400.

Since

The Height of the pyramid is 12 cm

The area of the base should be

[tex]= side^2\\\\= 10^2\\\\= 100[/tex]

Now the volume be

[tex]=1/3 * 100 * 12[/tex]

= 400

Hence, The  volume of Alina’s model in cubic centimeters should be 400.

Learn more about volume here: https://brainly.com/question/3510925

Answer:

16. 29 and 30

17. C. 30 D. 31

Step-by-step explanation:

16. Given the inequality c ≤ $30, which is used to represent the situation, it implies that possible value of c must be equal to $30 or less than $30.

Two possible solutions form the options given would be:

29 and 30.

29 is less than 30, and 30 is equal to 30.

17. The inequality given is b ≥ 30.

This implies that possible solutions will be equal to 30 or greater than 30. It cannot be less than 30.

The solutions that apply would be:

30 (this is equal to 30) and 31 (this is greater than 30).

The remaining options don't satisfy or make the inequality statement true.

Answer: A

Explanation:

Answer:

A. (–4, –3)

Step-by-step explanation:

This is in case any one else had the answer on a different letter.

Answer:

3x/7 + 8/7

Step-by-step explanation:

Answer:

three hydrogen atoms

Step-by-step explanation:

H3 + Po4 ----> H3Po4

FOLLOW ME

9514 1404 393

Answer:

  1/2

Step-by-step explanation:

The rules of exponents are helpful.

  (a^b)^c = a^(bc)

  a^-b = 1/a^b

__

  [tex]25^{\frac{1}{2}}\times10^{-1}=\dfrac{(5^2)^{\frac{1}{2}}}{10^1}=\dfrac{5^{2\cdot\frac{1}{2}}}{10}\\\\=\dfrac{5^1}{10}=\dfrac{5}{10}=\boxed{\dfrac{1}{2}}[/tex]

Answer:

to get from 5 miles to 45 miles you multiply by 9 right so just times 8km by 9 which is 72 to get 45 miles into km.

Step-by-step explanation:

Answer:

72 km

Step-by-step explanation:

5m = 8km

÷5. ÷5

1m = 1.6km

×45. ×45

45m = 72km

Answer: 4

Step-by-step explanation:

-7 + -9  = -16

-16 + 4 = -14

-14 + 16  = 4

Answer = 4

Answer:

(6,4)

Step-by-step explanation:

Hope it helps you.......

Answer:

(3⁰)×(4‐²)×(2³)

1×1/16×8

1/2

so th3 answer is option c.

Step-by-step explanation:

7/4-5/4

2/4

2/4 is the answer but if you reduce it to it's lowest term it is 1/2

please give brainliest

Answer:

Option 2. 2/4

Step-by-step explanation:

[tex] \frac{7}{4} - \frac{5}{4} [/tex]

[tex] \frac{7 - 5}{4} [/tex]

[tex] \frac{2}{4} (ans)[/tex]

Answer:

[tex]-20\frac{3}{4}[/tex] < [tex]-15\frac{1}{2}[/tex] < [tex]-14\frac{3}{4}[/tex] < [tex]-\frac{1}{4}[/tex]

Step-by-step explanation:

Just so you know, the larger a negative number is, the smaller the number's value is.

Answer:c. 3/10

Step-by-step explanation:

Answer:

10.8 in³

Step-by-step explanation:

2x2x2.7=10.8