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Sedaia [141]
3 years ago
11

Find the area and perimeter.

Mathematics
1 answer:
lara [203]3 years ago
8 0

Answer:

Step-by-step explanation:

Perimeter of triangle =  4x - 3 + x + 9 + 8

                                   = <u>4x + x</u> -<u> 3 + 9 + 8</u>

                                  = 5x + 14

Area  = \frac{1}{2}*base *height

         = \dfrac{1}{2}*8*3x\\\\= 4 * 3x\\\\= 12x

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In the right triangle shown, m of angle N = 30 degrees and MO = 8.<br> How long is NO?
expeople1 [14]

Answer:

Step-by-step explanation: 16

3 0
3 years ago
ABC~RST with m&lt;A=6x+17, m&lt;3x+9, and m&lt;C=37. Find the measure of R
12345 [234]

Answer:

Hence, m∠R=95°.

Step-by-step explanation:

We are given that ΔABC is similar to the ΔRST i.e. ΔABC~ΔRST.

Aslo  m∠A=6x+17, m∠B=3x+9, and m∠C=37

We know that sum of all the angles of a triangle is 180°.

⇒ ∠A+∠B+∠C=180

⇒ 6x+17+3x+9+37=180

⇒  9x+63=180  (As 6x+3x=9x and 17+9+37=63)

⇒  9x=180-63

⇒9x=117

⇒ x=13.  (on dividing both side by 9)

Hence m∠A=6x+17=6×13+17=95°

m∠B=3x+9=3×13+9=48°

m∠C=37°

Also as  ΔABC~ΔRST so this implies m∠R=m∠A=95°

Hence, m∠R=95°.



8 0
4 years ago
I need helppp on my test and i can't get it wrongggg
Artyom0805 [142]

Answer:

Perimeter = 16x + 16

Area = 40x + 15

Step-by-step explanation:

Perimeter = the sum of all the side lengths

Perimeter = 2(8x+3) + 2(5) = 16x + 6 + 10 = 16x + 16

Area = product of base times height

Area = (8x+3)*5 = 40x + 15

6 0
3 years ago
School x and y are in a comepetition. School x has 8 more points than school y and 3 times more points as school y . How many po
lara [203]

Answer:  School Y has 4 points and School X has 12 points.

Explanation:

Let the number of points School Y has be x

Let the number of points School X has be 3x

According to question, we get

3x-x=8\\\\2x=8\\\\x=\frac{8}{2}\\\\x=4

So, the number of point School Y has 4.

and number of points School X has

3x=3\times 4=12

Hence, School Y has 4 points and School X has 12 points.



6 0
3 years ago
Some one please help me on 8. Thank you.
balandron [24]
Let's say you had 12 campers with you so
Your tent 1
Then you need to divide the campers into 3s so 4 groups of 3
1 tent for each group of 3
So take C divid it by 3 plus you're 1 tent
C = number of campers

Hope this helps
6 0
3 years ago
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