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3 years ago

The most inner parenthetical term confuses me... 5+2 [10 (5•3-10)-30] =

1 answer:

6 0

5 + 2[ 10( 5 · 3 – 10 ) – 30 ]

= 5 + 2[ 10( 15 – 10 ) – 30 ]

= 5 + 2[ 10( 5 ) – 30 ]

= 5 + 2[ 50 – 30 ]

= 5 + 2[ 20 ]

= 5 + 40

= 45 <——— this is the answer.

I hope this helps. =)

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The face of a clock has a circumference of 63 in. What is the area of the face of the clock?

ryzh [129]

Answer:

The area of the clock $= 315.41\ inch^{2}$

Step-by-step explanation:

We have been given the face of the clock that is $63\ in$

So that is also the circumference of the clock.

Since the clock is circular in shape.

So $2\pi(r)=63\ inch$

From here we will calculate the value of radius $(r)$ of the clock that is circular in shape.

Then $2\pi(r)=63\ inch =\frac{63}{2\pi} = 10.02\ in$

Now to find the area of the clock we will put this value of (r) in the equation of area of the circle.

Now $\pi (r)^{2}=\pi(10.02)^{2}=315.41\ in^{2}$

So the area of the face of the clock = $315.41\ in^{2}$

6 0

3 years ago

4(a + 2) = 14 – 2(3 – 2a) –2 –1 no solution all real numbers

Ray Of Light [21]

All real numbers.

$\boxed{TRUE}$

Step-by-step explanation:

Distributive property: a(b+c)=ab+ac

Expand: 4(a+2)=4a+8

Expand again: 14-2(3-2a)=4a+8

4a+8=4a+8

You subtract by 8 from both sides of an equation.

4a+8-8=4a+8-8

Simplify.

4a=4a

Then, subtract by 4a from both sides of an equation.

4a-4a=4a-4a

Finally, simplify.

4a-4a=0

0=0

True

All real numbers is the final answer.

Hope this helps you!

Have a nice day! :)

4 0

3 years ago

Select the correct answer.

Katena32 [7]

Answer:C consumer price index

Step-by-step explanation:

7 0

3 years ago

Caleb scored 60 on his first math test. He studied diligently for the next test and earned a score of 90. What is his percent of

Scrat [10]

Your answer would be C. 50%

7 0

3 years ago

The question is in the picture, please help.

beks73 [17]

Answer:

b c and f edit: also A

Step-by-step explanation:

just gotta find what is reflexive

3 0

3 years ago