All categories

1 year ago

What is the length ?

Mathematics

2 answers:

Brums [2.3K]1 year ago

8 0

Answer:

AC = 2x - 13 Cm

BC = 3x + 4 Cm

AB = 36 Cm

AB = AC + BC

BC = AB - AC

= 36 - (2x - 13)

= 36 - 2x + 13

= 49 - 2x

but, BC = 3x + 4

so equating both the equation we get

3x + 4 = 49 - 2x

3x + 2x = 49 + 4

5x = 53

x = 53/5

x = 10.6

BC = 49- 10.6*2

= 49- 21.2

= 27.8 CM

nirvana33 [79]1 year ago

6 0

Answer:

BC = 31 cm

Step-by-step explanation:

from the diagram

AC + CB = AB ( substitute values )

2x - 13 + 3x + 4 = 36

5x - 9 = 36 ( add 9 to both sides )

5x = 45 ( divide both sides by 5 )

x = 9

then

BC = 3x + 4 = 3(9) + 4 = 27 + 4 = 31 cm

You might be interested in

Mr. Swanson has $350 to order music books for the new school year. Music books cost $10 each and come in packages of 5. Mr. Swan

Talja [164]

Answer:
$300

Explanation:
$10(cost of 1 book) x 5(how many comes in packages) = 50 ( total cost of 1 package)
Mr. Swanson ordered 6 so...
$50 x 6 = $300
Mr. Swanson would have $50 let's over

3 0

3 years ago

Evaluate g(x)=6 when x = -3,0, and 4.

iVinArrow [24]

Answer:

$-18 = g(-3) \\0 = g(0) \\ 24 = g(4)$

Step-by-step explanation:

$6 \times 4 = 24 \\ 0 \times 6 = 0 \\ -3 \times 6 = -18$

I hope this helps, and as always, I am joyous to assist anyone at any time.

5 0

2 years ago

Plz help me with this

Setler79 [48]

Answer: x = 8

(the correct answer was not provided as an option)

<u>Step-by-step explanation:</u>

$log_2(x-6)+log_2(x-4)=log_2(x)\\\\log_2[(x-6)(x-4)]=log_2(x)\\\\(x-6)(x-4)=x\\\\x^2-10x+24=x\\\\x^2-11x+24=0\\\\(x-3)(x-8)=0\\\\x=3\qquad x=8\\\\\\\text{The term after the log symbol (inside the parenthesis) must be greater than 0!}\\\\Check:\\3-6>0\ \text{FALSE --- so 3 is not a valid solution}\\\\8-6>0\ \text{TRUE}\\8-4>0\ \text{TRUE}\\8>0\ \text{TRUE --- 8 is a valid solution because it is true for all}$

8 0

3 years ago

1. Simplify the following expression: (x + 6y) − (8x − 10y). If the final answer is written in the form Ax + By, what is the val

vovikov84 [41]

I believe that the value of A is -7

4 0

3 years ago

On a survey map 5 inches represents 400 yards. What is the<br> number of yards per inch?

padilas [110]

Answer:

The number of yards per inch would be 80.

Step-by-step explanation:

400 divided by 5 = 80.

Have a good day.

4 0

2 years ago