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4vir4ik [10]
3 years ago
9

Is sin A is 7/10 what is Cos A

Mathematics
1 answer:
viva [34]3 years ago
5 0

Answer:

Cos A = (√51)/ 10

Step-by-step explanation:

sin  is opposite/hypothenuse

cos is adjacent/hypothenuse

Pythagorus theorem says that c² = a² + b²

10² = 7² + b²

b² = 100 - 49

b = ±√51

It doesn't make sense for a length to be a minus number therefore, we will use +√51.

Cos A = (√51)/ 10

Tell me if I am wrong.

Can I get brainliest

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State the property that justifies the statement: If 4x + 9 = 15 and X=2y + 1,
GREYUIT [131]

Answer:

Substitution property of equality

Step-by-step explanation:

Given

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Then

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Required

State the property

From the list of options, (d) answers the question.

This is so because:

Substitution property of equality states that

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In other words, both can replace one another.

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So:

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<em>Hence, it is substitution property of equality</em>

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A functionf(x) is graphed on the coordinate plane.
AleksandrR [38]

The function rule in slope-intercept form is y = -4x -2

<h3>What is a function ?</h3>

A function is defined as the mathematical statement which defines relation between a dependent variable and an independent variable.

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The equation for a straight line is given by

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c = -2

At x = 0 , y =-2

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Therefore ,the function rule in slope-intercept form is y = -4x -2 .

To know more about Function

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if thier is 24 hours in a day and the sky taste like watermelon then how many people would be born tommorow?
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Answer:

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Read 2 more answers
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