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never [62]
2 years ago
12

Simplify −k−(−8k+7) to create an equivalent expression

Mathematics
1 answer:
ad-work [718]2 years ago
4 0

Answer:

7k - 7

Step-by-step explanation:

-k - (-8k + 7)

= -k + 8k - 7

= 8k - k - 7

= 7k - 7

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Can someone tell me how to find the Radius, Diameter, And Circumference Of a Circle?​
irakobra [83]
<h2>Answer:</h2>

<h3>Radius:</h3>

radius is always half the length of its diameter. For example, if the diameter is 4 cm, the radius equals 4 cm ÷ 2 = 2 cm.

<h3>Diameter:</h3>

2 times the radius is the circle's diameter.

<h3>Circumference:</h3>

The formula is simply this: C = πd. In this equation, "C" represents the circumference of the circle, and "d" represents its diameter. That is to say, you can find the circumference of a circle just by multiplying the diameter by pi.the formula for circumference of a circle is 2 x pi x r(radius).

3 0
3 years ago
Helllpp!!! Fact check my awnsers please!!!​
Mrrafil [7]

Answer:

you're all good !!

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
16^5/4•16^1/4/(16^1/2)^2
Kazeer [188]

Answer:

The simplified expression is 16^-1/6

Step-by-step explanation:.

16^5/4•16^1 /4/ (16^1/2)^2

The dot means multiplication. The expression is rewritten as

16^5/4 × 16^1/4 / (16^1/2)^2

Recall the following rules of indices

1) y^a × y^b = y^(a+b)

2) (y^a)^b = y^ab

y^b/ y^a = y^(b-a)

Applying these rules of indices

16^5/4 × 16^1/4= 16^((5/4×1/4) = 16^((5/16)

(16^1/2)^2= 16^ 1/2×2 = 16^1 = 16

Therefore

16^5/4 × 16^1/4 / (16^1/2)^2

= 16^(5/16) /16

=16^(5/6) × 16^-1

= 16^ (5/6)-1

= 16^-1/6)

,The simplified expression is 16^-1/6

8 0
3 years ago
A car is purchased for $16,500. After each year, the resale value decreases by 35%. What will the resale value be after 3 years?
grin007 [14]

Answer: 16500(.65)^3 =4531.31

Step-by-step explanation:

7 0
3 years ago
Need an answer show work please thank you
d1i1m1o1n [39]

Answer:

\text{C. }1

Step-by-step explanation:

In the question, we're given that the notation \#\#(a,b,c) produces a number a less than the product of b and c raised to the a power. Let the number produced be n. As a mathematical equation, we can write this production as n=(bc)^a-a

For \#\#(2, 5, x), we can assign:

  • a\implies 2
  • b\implies 5
  • c\implies x

Substituting these values into n=(bc)^a-a, we get:

23=(5x)^2-2

Add 2 to both sides:

25=(5x)^2

Take the square root of both sides:

5=|5x|

For y=|z|, there are two cases:

\begin{cases}y=z,\\y=-z\end{cases}

Therefore, we have:

\begin{cases}5=5x, x=\boxed{1}\\5=-(5x), 5=-5x, x=\boxed{-1}}\end{cases}

The only answer choice applicable is \boxed{\text{C. }1}.

7 0
3 years ago
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