All categories

3 years ago

Pls help i need answer

Mathematics

2 answers:

laiz [17]3 years ago

6 0

Answer:

b. 14 m

Step-by-step explanation:

base of left side triangle

√20²-12²= √256= 16 m

base of right side triangle

24-16= 8 m

missing length

√12²+8²= √208= 14.42 m

Option b. 14 m is closest one

saul85 [17]3 years ago

3 0

Answer:

14m

Step-by-step explanation:

Step1:

Consider the first right angled triangle using Pythagoras Theorem:

(hyponenus)^2 = (opposite)^2 + (adjacent)^2

20^2 = 12^2 + A^2

A^2 = 400 - 144 = 256

A = Square root of 256 = 16m

Step2:

CONSIDER THE SECOND RIGHT_ ANGLED TRIANGLE:

adjacent=24-16=8m

opposite=12m

Hypotenus=?

(hypotenus)^2 = (opposite)^2 + (adjacent)^2

H^2=12^2+8^2=

144+64

H^2=208

H=square root of 208=14.42m

To the nearest meter=14m

Hope it helps.

You might be interested in

Express x2+ 4x - 7 in the form (x + a) - b where a and b are integers. please help 100 points

Darya [45]

Answer:

(x + 2)^2 - 11.

Step-by-step explanation:

f(x) = x^2 + 4x - 7

Now x^2 + 4x = (x + 2)^2 - 4 so we have:

f(x) = (x + 2)^2 - 4 - 7

f(x) = (x + 2)^2 - 11.

4 0

3 years ago

Al and Beverly thought of the same number. Al doubled the number and added 15 to the result. He got 51.Beverly did the same oper

laiz [17]

Assume the secret number is x.

"Al doubled the number and added 15 to the result. He got 51."

means 2x+15=51

solving for x:

2x+15=51

2x=51-15

2x=36

x=18

"Beverly did the same operations with their number, but in the reversed order." means she first added 15 to the number, then she doubled the result,

that is she performed the operation:

First: x+15

then: 2(x+15)

since we found x=18, then we have 2(x+15)=2(18+15)=2*33=66

Answer: 66

6 0

3 years ago

Read 2 more answers

To reduce 32 grams of a 25% antiseptic solution to a 10% antiseptic solution, how much pure water should a pharmacist add?

Mice21 [21]

Answer:

Step-by-step explanation:

(25*32)+(0*x)=10*(32+x)

800+0=320+10x

480=10x

x=48

Please mark as Brainliest! :)

Have a nice day.

5 0

3 years ago

Solve for a: a+b=C Select one: a. a. a=b+c b. a=b-c c. a=c-b d. b=C-a

oksano4ka [1.4K]

Answer:

Step-by-step explanation:

a+b = c

so a is c-b then you have the answer

7 0

3 years ago

Can someone help me solve this?

BigorU [14]

Answer:

Step-by-step explanation:

The solution of a system of equations is the point where the two lines intersect. Since these two lines intersect at the point (-1,-2), the correct answer is choice C. Hope this helps!

3 0

4 years ago