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3 years ago

Can someone help me please I don’t get these

Mathematics

1 answer:

liubo4ka [24]3 years ago

7 0

Because CD is the perpendicular bisector of AB, this means that AB is divided into two equal parts. So, AD = DB.

AD = 6x - 2 and DB = 2x + 18, so:

6x - 2 = 2x + 18

We can use algebra to solve for x.

Adding 2 to both sides gives you

6x = 2x + 20

Subtracting 2x from both sides gives you

4x = 20

Dividing by 4 on both sides gives you

x = 5

And there's your solution.

You might be interested in

If you have 6 cars, but there is only room in your driveway for 3 cars, in how many ways can you arrange the cars in your drivew

Svetradugi [14.3K]

If the order does not matter, cars can be arranged in 20 ways

If an order is important, cars can be arranged in 120 ways

The probability that the three newest cars end up parked in the driveway is 0.167

1. If the order does not matter, combination is used

$\left ({n} \atop {r}} \right.)=\frac{n!}{r!(n-r)!}$

Here, n=6 r=3

using formula,we get

$\left ( {{6} \atop {3}} \right)=\frac{6!}{3!3!} =5*4=20$

2. If an order is important, Permutation will be applicable

$^{n}P_{r} = \frac{n!}{(n-r)!} \\$

∴ $^{6} P_{3} =\frac{6!}{3!(6-3)!}=\frac{6!}{3!} =120$

3. the probability that the three newest cars end up parked in the driveway

P= $\frac{No. of possible outcomes for 3 cars}{total possibilities}$

= $\frac{6*4*5}{6!}$

= $\frac{120}{720}$

= $\frac{1}{6}$ ≈ 0.167

Hence, If the order does not matter, cars can be arranged in 20 ways

If an order is important, cars can be arranged in 120 ways

The probability that the three newest cars end up parked in the driveway is 0.167

Learn more about probability here brainly.com/question/6077878

#SPJ4

7 0

2 years ago

Suppose you invest $500 at an annual interest rate of 8.2% compounded continuously. How much will you have in the account after

Marianna [84]

Here is the formula that your going to need to use A=P(1+r/n)^nt
So P=500, R=0.082, N=1, T=15
Plug it into your equation and you have A=500(1+0.082/1)^(1)(15)
Simplify what's in the parenthesis A=500(1.082)^(1)(15)
Multiply your exponents A=500(1.082)^15 Then A=500(3.26)
Finally you multiply your last two numbers to get A=1,630
So after 15 years you would have $1,630
I hope this helped you :)

7 0

3 years ago

there are 2 cakes on the counter that are the same size.The first cake has 1/2 of it left.the second cake has 5/12 left.which ca

arlik [135]

The second cake with 5/12 left.
Hope this helps!

6 0

3 years ago

Read 2 more answers

HALP HELP HELP HELP HALP

alexandr402 [8]

Answer:

the answer is option (D)3*3