All categories

2 years ago

Help Please big exam!!!

Mathematics

1 answer:

BARSIC [14]2 years ago

5 0

Answer:

we know that sum of angles in triangle is 180°

= <B= 43° <C=15° <A = 180°

=180°-58°=122°

<A= 122°

Step-by-step explanation:

thanku

You might be interested in

Need help right now !!!!! <br> Find the missing part

oksian1 [2.3K]

What kind of mathematics are you learning?

3 0

2 years ago

8x – 10 = 3x – 10 + 7x

stira [4]

Answer:

x= 0

Step-by-step explanation:

Let's first simplify the equation to make the PEMDAS process easier.

8x-10=3x-10+7x

8x-10=10x-10

Now lets start the subtracting and dividing process.

8x=10x

0=2x

0=x

6 0

3 years ago

In ΔJKL, k = 9.6 cm, l = 2.7 cm and ∠J=43°. Find ∠L, to the nearest 10th of a degree.

Bogdan [553]

Answer:

L = 10.64°

Step-by-step explanation:

From the given information:

In triangle JKL;

line k = 9.6 cm

line l = 2.7 cm; &

angle J = 43°

we are to find angle L = ???

We can use the sine rule to determine angle L:

i.e

$\dfrac{j}{SIn \ J} = \dfrac{l}{ SIn \ L}$

Using Pythagoras rule to find j

i,e

j² = k² + l²

j² = 9.6²+ 2.7²

j² = 92.16 + 7.29

j² = 99.45

$j = \sqrt{99.45}$

j = 9.97

∴

$\dfrac{9.97}{Sin \ 43} = \dfrac{2.7}{ Sin \ L}$

${9.97 \times Sin (L ) = (2.7 \times Sin \ 43)$

$= Sin \ L = \dfrac{ (2.7 \times Sin \ 43)}{9.97 } \\ \\ = Sin \ L = \dfrac{ (2.7 \times 0.6819)}{9.97 } \\ \\ = Sin \ L = 0.18466 \\ \\ L = Sin^{-1} (0.18466) \\ \\ L = 10.64 ^0$

3 0

2 years ago

How to solve 488x6 ?

Tema [17]

Answer:1928

Step-by-step explanation:488* 6

I used lattice

8 0

2 years ago

If 1/3 of a set of numbers is 8 how many numbers are in the total set ?

Eduardwww [97]

Answer:

Step-by-step explanation:

1/3 = 8

3/3 = 8*3

7 0

2 years ago