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Varvara68 [4.7K]
2 years ago
6

Solve for the missing variable(s) and SHOW ALL WORK

Mathematics
1 answer:
Usimov [2.4K]2 years ago
7 0

Answer:

x = 4

Step-by-step explanation:

From the picture attached,

By using mean ratio theorem in the given triangle,

\frac{AC}{BC}=\frac{BC}{CD}

AC × CD = (BC)²

(x + 5)x = (x + 2)² [Since, AC = AD + CD]

x² + 5x = x² + 4x + 4

5x = 4x + 4

5x - 4x = 4

x = 4

Therefore, x = 4 will be the answer.

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-6x +3 3/4 + 14x - 3.25
Nataly_w [17]

Answer:

8x +5

Step-by-step explanation:

that's what I got.................

4 0
2 years ago
Read 2 more answers
Find x on this special right triangle
Vinil7 [7]

Answer:

x=9.79

Step-by-step explanation:

firstly find the hypotenuse of the first triangle

sin45=12/h

sin45h/sin45=12/sin 45

h=16.9

after finding the hypotenuse you can then use it to find x by using tan

tan60=16.9/x

tan60x/tan60=16.9/tan60

x=9.79

I hope this helps!!

3 0
3 years ago
Find the rate of red beads per bracelet. Explain how you found your answer
Natasha2012 [34]

Answer:

b r u h

your question is incomplete. T^T

5 0
2 years ago
Read 2 more answers
The average time a subscriber spends reading The Wall Street Journal is 49 minutes (The Wall Street Journal Subscriber Study). A
erica [24]

Answer:

P(X>60)=P(\frac{X-\mu}{\sigma}>\frac{60-\mu}{\sigma})=P(Z>\frac{60-49}{16})=P(z>0.6875)

And we can find the probability with the complement rule and the normal standard distirbution and we got:

P(z>0.6875)=1-P(z

Step-by-step explanation:

Let X the random variable that represent the time spent reading of a population, and for this case we know the distribution for X is given by:

X \sim N(49,16)  

Where \mu=49 and \sigma=16

We are interested on this probability

P(X>60)

And we can use the z score formula given by:

z=\frac{x-\mu}{\sigma}

Using this formula we got:

P(X>60)=P(\frac{X-\mu}{\sigma}>\frac{60-\mu}{\sigma})=P(Z>\frac{60-49}{16})=P(z>0.6875)

And we can find the probability with the complement rule and the normal standard distirbution and we got:

P(z>0.6875)=1-P(z

5 0
3 years ago
3. Jim invests $3500, compounded annually at 12% for 3 years. What is the total
irga5000 [103]

Answer:

None of the above, it should be $4760

Step-by-step explanation:

First, converting R percent to r a decimal

r = R/100 = 12%/100 = 0.12 per year,

then, solving our equation

I = 3500 × 0.12 × 3 = 1260

I = $ 1,260.00

The simple interest accumulated

on a principal of $ 3,500.00

at a rate of 12% per year

for 3 years is $ 1,260.00

3 0
2 years ago
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