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3 years ago

Can someone help me with 1& 2 will mark brainiest

Mathematics

1 answer:

melamori03 [73]3 years ago

7 0

Sin 45° = opposite side / hypotenuse

1/2 = 8/h
h = 16

2)6/12 = 1/2
1/2 = sin 45°

6√3/12 = √3/2
√3/2 = cos 30°

Sum of angles of triangle = 180°
The 3rd angle = 180 - (45 + 30) = 180 - 75 = 105°

Angles = 30° , 45° , 105°

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Given the following system of equations:

kompoz [17]

Answer:

(D) Divide the first equation, $-4x + 8y = 16$ , by 2.

Step-by-step explanation:

Given:

$-4x + 8y = 16 \ \ \ \ equation \ 1$

$2x + 4y = 8 \ \ \ \ equation \ 2$

We need to find the operation performed on equation so as to get resultant equation as:

$-2x + 4y = 8$

$2x + 4y = 8$

From Above we can see that there is no change in equation 2 with respect to resultant equation.

Also Resultant equation is simplified form of equation 1.

Simplifying equation 1 we get;

$-4x + 8y = 16$

We can see that 2 is the common multiple on both side.

Hence we will divide equation 1 with 2 we get

$\frac{-4x}{2}+\frac{8y}{2}=\frac{16}{2}\\\\-2x+4y=8$

which is the resultant equation.

Hence (D) Divide the first equation, $-4x + 8y = 16$ , by 2 is the correct option.

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2 years ago

What is the supplementary angle to an angle that has 112 degrees?

olga55 [171]

Supplementary means they add up to 180°.
180-112= 68
The answer is 68°

7 0

3 years ago

PLEASE HELPPPP!!!

Elena L [17]

follow the above steps may be it's right

6 0

3 years ago

On the graph, sketch f(x)=x+3 as well as g(x)=x

tresset_1 [31]

Answer:

below

Step-by-step explanation:

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1 year ago

60 boys at a summer camp were asked to complete a survey about their favorite outdoor activity. 18 boys chose biking and 29 boys

nadezda [96]

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▹ Answer

$\frac{29}{47} * 100$

▹ Step-by-Step Explanation

29 + 18 = 47 → 29/47

Total boys → 100

29/47 * 100

Hope this helps!

CloutAnswers ❁

Brainliest is greatly appreciated!

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8 0

2 years ago