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BARSIC [14]
3 years ago
13

I need qestion number d) solution please help me​

Mathematics
1 answer:
natita [175]3 years ago
8 0

Answer:

It is an identity, the proof is in the explanation

Step-by-step explanation:

csc(A)-cot(A)=tan(A/2)

I'm going to start with right hand side

tan(A/2)=(1-cos(a))/(sin(a))                half angle identity

tan(A/2)=1/sin(a)-cos(a)/sin(a)         separate fraction

tan(A/2)=csc(a)-cot(a)                     reciprocal and quotient identities

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Find the volume of the triangular prism.<br> 3cm<br> 10cm<br> 7cm
asambeis [7]

Answer:

volume of the triangular prism =  105cm³

Step-by-step explanation:

to find the volume of a triangular prism , given the three sides to be 3cm, 10cm, 7cm,

so, recall the formulae for calculating the volume of a triangular prisim

volume of the triangular prism =  1/2 x a x b x c

volume of the triangular prism =  1/2 x 3cm x 10cm x 7cm

volume of the triangular prism =  3cm x 5cm x 7cm

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therefore the volume of the trangular prism is evaluated to be equals to 105cm³

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yanalaym [24]
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4 years ago
Kevin has a checking account. This month he deposits three paychecks. Each paycheck is for $225.75. He also makes two payments f
user100 [1]

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3 years ago
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Answer:

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we need to find the cost of 12 items, and the function of determining the cost is C(x)=2x+12, where x is the number of items (the input value of the function)

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substitute x as 12 in the function; the x in C(x) also gets substituted as 12, as 12 is the input value and the value of C(x) is the output

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What is the measure of X?
AnnZ [28]

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A. 25.7°

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the sum of straight angle is 180°.

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3 years ago
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