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Stolb23 [73]
3 years ago
9

This quiz is due in a hour I'll up the points to 25

Mathematics
1 answer:
Irina-Kira [14]3 years ago
3 0

Answer:

The sin A expressed in ratio form is \frac{\sqrt{6} }{4}

Step-by-step explanation:

From the given right angled triangle diagram, sin A is calculated as follows;

sin \ A = \frac{Opp}{hypo} \\\\sin \ A = \frac{2\sqrt{6} }{8} \\\\sin \ A = \frac{\sqrt{6} }{4}

Therefore, the sin A expressed in ratio form is \frac{\sqrt{6} }{4}

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Select the word that correctly completes the sentence.
Mashutka [201]
Every function pairs HAS EXACTLY ONE output value with one input value. 

A function is defined as a relation wherein one variable specifies a single value of another value. Function pairs is composed of an input and an output. 
3 0
3 years ago
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Subtract (-2) + 3 – 6. Hint: Add the first two numbers, then subtract the 6 from the result of that addition.
mina [271]

The answer is -5.

Step-by-step explanation:

The answer is -5 because -2 plus 3 equals 1 and 1 minus 6 equals -5

7 0
3 years ago
Complete the identity sin(2θ) sin(4θ) cos(2θ) cos(4θ) = ?
Novay_Z [31]

Answer:

Step-by-step explanation:

Factor the left hand side as a difference of squares:

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1

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Hopefully this helps!

4 0
3 years ago
the lengths of the sides of a triangle are in the ratio 5:6:7. describe the length of the longest side if the perimeter is less
torisob [31]

Answer:

length of the longest side is  less than 21

Step-by-step explanation:

5n+6n+7n=18n

18n<54

n<54/18

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5 0
3 years ago
Read 2 more answers
Graphs and equations of lines
dmitriy555 [2]

Answer:

a) y = -\frac{3}{4} x + 5

b) y = 6x-18

c) y = \frac{4}{5} x+\frac{19}{5}

Step-by-step explanation:

a) The slope / gradient is the coefficient of x, so for a) it will be y=-\frac{3}{4} x + C.

C is the y-intercept, so the full equation will be y = -\frac{3}{4} x + 5.

b) Again, since the slope is 6, we know the coefficient of x will be 6.

Now, we have a point on the line and so far, we know the equation is y=6x+c. The coordinates of the point are (2,-6). So now we substitute the y and x values into the equation in order to find C.

-6 = 6(2)+C

-6 = 12+C

C = -18

y = 6x-18

c) To find the gradient we must use the formula \frac{rise}{run}.

rise = change in y value

run = change in x value

so, the gradient = \frac{7-3}{4-(-1)} = \frac{4}{5}

Now the equation is y = \frac{4}{5} x +C

Again, to find C we substitute any of the coordinates into the equation. I will use (-1,3).

3 = \frac{4}{5} (-1) +C

3 + \frac{4}{5} =C

C =\frac{19}{5}

so c) is y = \frac{4}{5} x+\frac{19}{5}

6 0
3 years ago
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