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3 years ago

Answer those please

Mathematics

2 answers:

const2013 [10]3 years ago

8 0

11.) 0.5.

12.) 0.25.

13.)1/2,0.49,55%.

14.)2/5,0.6,35%.

15.) To get a whole number from a fraction you have to multiply the fraction by the denominator of the fraction=5/9×9=5.

or you can say that can add 4/9 to 5/9=9/9=1 a whole number also

mylen [45]3 years ago

4 0

11. 0.5
12. 0.25
that’s all i know

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My name is Ann [436]

Answer:

1 ray is intersecting point O

Step-by-step explanation:

A ray can be defined as a part of a line that has a fixed starting point but no end point.

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3 years ago

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Ipatiy [6.2K]

Answer:

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Step-by-step explanation:

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3 years ago

How do you this question (pre-cal)

Novay_Z [31]

The goal to proving identities is to transform one side into the other. We can only pick one side to transform while the other side stays the same the entire time. The general rule of thumb is to transform the more complicated side (though there may be exceptions to this guideline).

So I'll take the left hand side and try to turn it into $\csc^2( B )$

One way we can do that is through the following steps:

$\frac{\tan(B) + \cot(B)}{\tan(B)} = \csc^2(B)\\\\\frac{\tan(B)}{\tan(B)} + \frac{\cot(B)}{\tan(B)} = \csc^2(B)\\\\1 + \cot(B)*\frac{1}{\tan(B)} = \csc^2(B)\\\\1 + \cot(B)*\cot(B) = \csc^2(B)\\\\1 + \cot^2(B) = \csc^2(B)\\\\1 + \frac{cos^2(B)}{\sin^2(B)} = \csc^2(B)\\\\\frac{sin^2(B)}{\sin^2(B)}+\frac{cos^2(B)}{\sin^2(B)} = \csc^2(B)\\\\\frac{sin^2(B)+cos^2(B)}{\sin^2(B)} = \csc^2(B)\\\\\frac{1}{\sin^2(B)} = \csc^2(B)\\\\\csc^2(B)=\csc^2(B) \ \ {\Large \checkmark}\\\\$

Since we've shown that the left hand side transforms into the right hand side, this verifies the equation is an identity.

4 0

3 years ago

Explain how to do this please show your work

madreJ [45]

Answer:

(x- 5)(x - 3)

x(x - 3) -5(x - 3)

x^2 - 3x - 5x + 15

x^2 - 8x + 15

4 0

2 years ago

Wats 10 to the 2nd power divied by 5 to the 2nd power

Ilya [14]

Answer:

Step-by-step explanation:

10^2/5^2

Do the exponents first

10 to the 2nd power is 100

5 to the 2nd power is 25

100/25

100 divided by 25 is 4

So the answer is 4

Hope this helps!

6 0

3 years ago