All categories

3 years ago

Help .................................................

Mathematics

2 answers:

kati45 [8]3 years ago

5 0

AC-AB=BC
53-4x-6=2x+5
42=6x
x=7
BC=2x+5=2(7)+5=19

Ksenya-84 [330]3 years ago

4 0

The correct answer is 19 because x=7
Hope this helped :)

You might be interested in

P is the midpoint of XY x p equals 8 x - 2 + p y equals 12x - 30 find the value of x

disa [49]

Answer:

but please give me and please mark me as

7 0

3 years ago

Complete the equation <br> (4,-8) and (8,5)

LekaFEV [45]

4 is the x1 value, -8 is the y2 value, 8 is the x2 value, and 5 is the y2 value.

8 0

3 years ago

Caroline puts $400 into a savings account that earns 6% annually. Write a function that represents this situation, where t is th

DaniilM [7]

Answer: 19 years

Step-by-step explanation:

Given

Amount invested $\$400$

Rate of interest $R=6\%$

after 1-year amount becomes

$A=400\left (1+6\%\right)\\A=400\left (1+0.06\right)\\A=400\times 1.06\\A=\$424$

After n years it is

$A=400\left (1.06\right)^n$

Sum accumulated is $\$1200$

$\Rightarrow 1200=400\left(1.06\right)^n\\\Rightarrow 3=\left(1.06\right)^n\\\text{Taking log both sides}\\\Rightarrow n=\dfrac{\ln 3}{\ln 1.06}\\\\\Rightarrow n=18.85\approx 19\ \text{years}$

5 0

3 years ago

Expand the expression (3-2y)^6 using binomial theorem

Nitella [24]

She should have added 2 to both sides of the equation instead of subtracting 2.

2x -2 = 14

Add 2 to both sides:

2x = 16

Divide both sides by 2:

x = 8

5 0

3 years ago

What is 10.465 - (-25.21)

UNO [17]

Answer: 35.675

Step-by-step explanation:

10.465−(−25.21)

The opposite of −25.21 is 25.21.

10.465+25.21

Add 10.465 and 25.21 to get 35.675.

35.675

5 0

2 years ago