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kykrilka [37]
4 years ago
13

Can someone explain ?

Mathematics
1 answer:
Vika [28.1K]4 years ago
8 0

Answer:

see below

Step-by-step explanation:

sqrt(90)

We know that sqrt(ab) = sqrt(a) sqrt(b)

sqrt(9*10)

sqrt(9) sqrt(10)

3*sqrt(10)

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What is the answer, and how do I solve that equation in order to get my answer? I really want to get the hang of this.
Mrrafil [7]

Answer:

-x^2+4x+6

Step-by-step explanation:

f(x) = 4x+1

g(x) = x^2 - 5

(f-g) (x) = 4x+1 - ( x^2 - 5)

Distribute the minus sign

            = 4x+1 - x^2 +5

 Combine like terms

         = -x^2+4x+6

6 0
3 years ago
Please help! If the m = 1/2 and the b = -2, then the linear equation is:
Vsevolod [243]

Answer:

y=1/2x-2

you write it in y=mx+b form

7 0
3 years ago
Read 2 more answers
The minute hand of a clock is 4 inches long. How far does the tip of the minute hand move in 35 minutes? If necessary, round the
blsea [12.9K]

Answer:

14.66 inches

Step-by-step explanation:

Calculation for How far does the tip of the minute hand move in 35 minutes

The tip of a minute hand will always travels at 360 degrees in an hour ( 60 minutes)

Hence, the tip of the minute hand

distance will be calculated using this formula

Circumference of a circle=2*π*Radius* Clock Tip hand movement/Number of minutes per hour

Let plug in the formula

Circumference of a circle==2*π*4 inches*35 minutes/60 minutes

Circumference of a circle= =2*π*4 inches*0.58333

Circumference of a circle==14.659 inches

Circumference of a circle==14.66 inches (Approximately)

Therefore How far does the tip of the minute hand move in 35 minutes will be 14.58 inches

8 0
3 years ago
What is the value of y in this simplified expression?<br> 11^-4<br> 11^-8 = 11^y<br> y = ?
kkurt [141]

Answer:

y = - 8

Step-by-step explanation:

{11}^{ - 8}  =  {11}^{y}  \\  \therefore \:  - 8 = y \\ \huge \purple{ \boxed{ \therefore \: y =  - 8}}

6 0
3 years ago
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Given: x + y = 10.<br><br> If x = -21, what is y?
klio [65]

The answer to the problem would be Y=31.

4 0
4 years ago
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