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Vitek1552 [10]
2 years ago
11

Easy maths question I’ll give brainiest

Mathematics
2 answers:
NISA [10]2 years ago
5 0

Answer:

BC ≈ 12.6 m

Step-by-step explanation:

Using the tangent ratio in the right triangle

tan31° = \frac{opposite}{adjacent} = \frac{AB}{BC} = \frac{7.6}{BC} ( multiply both sides by BC )

BC × tan31° = 7.6 ( divide both sides by tan31° )

BC = \frac{7.6}{tan31} ≈ 12.6 m ( to 3 sf )

LUCKY_DIMON [66]2 years ago
4 0

Answer:

Angle BC is 12.6m

Step-by-step explanation:

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How to find the surface area of a triangular prism using net?
Mazyrski [523]

A net is a pattern made when the surface of a three-dimensional figure or solid is laid out flat showing each face of the figure. It is then possible to use the net to calculate the surface area of the solid.

Surface Area of a Cube using Nets

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8 0
3 years ago
i bought 6 apples for0.30 dollars each and 5 oranges for 0.40 dollars each. how much did i spend ? write an equation then solve​
katovenus [111]

Answer:

3.8

Step-by-step explanation:

if the apples are 0.30 cents each then you multiply .3 X 6 and you get 1.8 because 1 apple is .30 cents you want to know how much is 6.

Next you pay .40 cents each for 5 oranges so .4 X 5 which is 2. And once again one orange is .40 cents so you multiply that by 5 to see the price of 5 oranges

Now you add the 1.8 to 2 and get 3.8

Now for the equation you just need to plug in what you did so...

(0.3 X 6) + (0.40 X 5) =  3.8

Glad i could help :)

7 0
3 years ago
A field is a rectangle with a perimeter of 1240 feet. The length is 400 feet more than the width. Find the width and length of t
Wewaii [24]

Answer:  The length is 510 and the width is 110.

Step-by-step explanation:

To find the area of a rectangle, you will have to add the 2 times the length plus 2 times the width because  a rectangle have 4 sides. Two widths and two  lengths.

You can now use the formula  P= 2l + 2w  

were P is the perimeter , l is the length, and w is the width.

the length is 400 more than the width, so we can represent that by the equation,  l = w + 400  

And now we know that the width is w.

So now we will input the perimeter, length, and into the formula to solve for w.

1240 = 2(w + 400) + 2w

1240 = 2w + 800 + 2w

1240 = 4w + 800

-800            -800

   440 = 4w

    w = 110

L= 110 + 400

L = 510  

Check :

1240 = 2(510) + 2(110)

1240 = 1020 + 220

1240 = 1240

5 0
3 years ago
Need help the last one is 1,-5 would really appreciate it
artcher [175]

Answer:

3,1

Step-by-step explanation:

4 0
3 years ago
What is 9x+3=21<br> What is the value of x=
valentinak56 [21]

Answer:

2

Step-by-step explanation:

4 0
3 years ago
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