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3 years ago

Can someone give me an example on how to solve non right angled triangles?

Mathematics

1 answer:

allochka39001 [22]3 years ago

3 0

First use the

Pythagorean theorem to find the hypotenuse h of the right triangle.

h = √(62 + 82)

= √(36 + 64)

= 10

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What is the factored form of x^6-9?

avanturin [10]

Answer: (x³ + 3)(x³ - 3)

Explanation: A variable taken to any even power is a perfect square. Its factors will have exponents equal to one-half the original power.

In this case, x⁶ would therefore be a perfect square.

Since 9 is also a perfect square,

what we have here is the difference of two squares.

That can be factored as the product of two binomials,

one with a plus and one with a minus.

So we have ( + )( - ).

Now ask yourself "what are the factors of x⁶ that are the same?"

Remember the rule is that those factors will use

one-half the exponent on the original.

So the factors of x⁶ that are the same are x³ and x³.

The factors of 9 that are the same are 3 and 3.

So our answer is (x³ + 3)(x³ - 3) and that's all there is to it.

6 0

3 years ago

Read 2 more answers

Please answer that for me i will mark brainliest<br> If X was 30, y would be equal to what number?

Fed [463]

Answer:

We cannot solve this.

Step-by-step explanation:

There is no equation to plug x in.

For example,

x + 7 = y

If x = 30, 30 + 7 = 37

Hope this helps!

7 0

3 years ago

A ramp is 17 ft long , rises 8 ft above the floor, and covers a horizontal distance of 15 ft,as shown in the figure

gavmur [86]

A ramp is 17 feet long, rises 8 feet above the floor,

and covers a horizontal distance of 15 feet,

as shown in the figure.

(First box)

A. Sin B = 8/17

B. Cos B = 15/17

C. Sin A = 15/17

(Second box)

A. Sin B = 8/17

B. Cos B = 15/17

C. Cos A = 8/17

Hope this helps!

8 0

4 years ago

What is the value of y when x= -3?<br>y= -2x+9

natka813 [3]

y=15 when x=-3

Because,

y= -2x+9

= -2(-3)+9

= 6+9

=15

so,

y=15

7 0

3 years ago

Read 2 more answers

A driving school wants to find out which of its two instructors is more effective at preparing students to pass the state’s driv

jonny [76]

Answer:

Yes, there is evidence to support that claim that instructor 1 is more effective than instructor 2

Step-by-step explanation:

We can conduct a hypothesis test for the difference of 2 proportions. If there is no difference in instructor quality, then the difference in proportions will be zero. That makes the null hypothesis

H0: p1 - p2 = 0

The question is asking whether instructor 1 is more effective, so if he is, his proportion will be larger than instructor 2, so the difference would result in a positive number. This makes the alternate hypothesis

Ha: p1 - p2 > 0

This is a right tailed test (the > or < sign always point to the critical region like an arrowhead)

We will use a significance level of 95% to conduct our test. This makes the critical values for our test statistic: z > 1.645.

If our test statistic falls in this region, we will reject the null hypothesis.

<u>See the attached photo for the hypothesis test and conclusion</u>

7 0

4 years ago