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kondaur [170]
2 years ago
7

Trigonometry question worth 100 points! desperately need help

Mathematics
1 answer:
Gala2k [10]2 years ago
5 0

Answer:

Height is 40√2 m or 56.57 m

Explanation:

Use Pythagoras theorem: a² + b² = c²

where 'a' and 'b' are the legs and 'c' is the hypotenuse

Here given:

  • a = 20 meter
  • b = height
  • c = 60 meter

Substitute values:

(20)² + (h)² = 60²

400 + h² = 3600

h² = 3600 - 400

h² = 3200

h = √3200

h = 40√2

h = 56.6 meter

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Find the measures of HAB and CAB.
Paha777 [63]

Answer: Angle HAB= 66 and Angle CAB= 44

Step-by-step explanation:

Since angle EAF=90 and FAD=20 then DAH must equal 70 degrees because it is 180 degree angle. Since DAH and EAC are vertical angles they are equal so EAC = DAH= 70 degrees. For the other side of 180 degrees then 70+5x=180

5x=110

x=22

CAB= 2(22)= 44 degrees

HAB= 3(22)=66 degrees

4 0
3 years ago
4x+2y=-24<br> -4x+y = 12
allsm [11]

Answer:

Step-by-step explanation:

                                4x+2y = -24    -------------(i)

                              <u>  -4x+y =  12    -</u>------------(ii)

add (i) &(ii)                      3y = -12

                                         y = -12/3

                                         y = -4

Put y = (-4) in (i)

4x + 2*(-4) = -24

4x - 8 = -24

4x = -24 + 8

4x = -16

x = -16/4

x = -4

6 0
3 years ago
I need help can you help me,,plz
lapo4ka [179]
The answer would be 20 or 9
6 0
3 years ago
Read 2 more answers
Lillian but for hairbrushes at $3.99 each.She had a coupon for $1 off. Her mum paid for half of the remaining cost.Evaluate a nu
Savatey [412]
She will pay $1.50 for the hairbrush and her mum paid $1.50 as well
3 0
3 years ago
Why isn’t 10.3 a integer? answer asap pls
Oxana [17]

Answer:

It is not a whole number.

Step-by-step explanation:

First, you have to know that interests are WHOLE NUMBERS, not fractions.

10.3 is not a whole number, as 10.3= 10 3/10, or 103/10.

7 0
3 years ago
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