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goldfiish [28.3K]
3 years ago
13

Which expression is equivalent to square root -108 - square root -3?

Mathematics
1 answer:
horsena [70]3 years ago
4 0

Answer:

A) 5 square root 3i

Step-by-step explanation:

Simplify each term.

6i√3−i√3

Subtract 1i√3 from 6i√3.

5i√3

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Given YZ tangent to J at point Y, and the mWYZ =104 what is the mWXY
ElenaW [278]

Answer:

152

Step-by-step explanation:

m \angle {WYZ}=104 is given, and the angle next to it is a supplement. (Unfortunately, that angle can't be named in the usual way because there is no labeled point "southeast" of point Y.)

That angle has measure 180 - 104 = 76.

Now arc WXY's measure is <u>twice</u> the measure of this angle, so mWXY = 2(76) = 152.

5 0
2 years ago
Barbara made a bad investment. Rather than earning interest, her money is decreasing in value by 11% each week! After just one w
pochemuha

Answer: She started with $160.

It will take 6 weeks before she has less than half of what she originally invested.

Step-by-step explanation:

If her money is decreasing in value by 11% each week, it means that the rate at which it is decreasing is exponential.

We would apply the formula for exponential decay which is expressed as

A = P(1 - r)^t

Where

A represents the value of the investment after t weeks.

t represents the number of weeks.

P represents the initial value of the investment.

r represents rate of depreciation.

From the information given,

A = $142.40

r = 11% = 11/100 = 0.11

t = 1

Therefore

142.40 = P(1 - 0.11)^1

142.40 = P(0.89)

P = 142.4/0.89

P = 160

For her to have half of what she invested originally, then

80 = 160(0.89)^t

80/160 = (0.89)^t

0.5 = (0.89)^t

Taking log of both sides to base 10

Log 0.5 = log0.89^t = tlog0.89

- 0.3010 = - 0.051t

t = - 0.3010/- 0.051

t = 5.9

Approximately 6 weeks

5 0
3 years ago
Which of these number is irrational?<br><br> a) 9.6<br> b) √45 <br> c) 3/8<br> d) 3.4 x 10 ⁵
bearhunter [10]

Answer:

I think (D)

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
What can you times by 9 to 1296 <br> What can you multiply by 9 to get 1296
ozzi

Answer:

144, would be your answer

Step-by-step explanation: Multiply 144 by 9 and you get 1296.

7 0
3 years ago
What is the y-intercept of the equation 2g(x)+2x=4
uysha [10]

2g(x) +2x=4

2( g(x) +x) = 2(2)

g(x) + x= 2

g(x) = 2- x

To get y intercept,

put x=0

g(x) = 2- 0

g(x) = 2

So,y intercept = 2

7 0
3 years ago
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