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2 years ago

I need help proving this ASAP

Mathematics

2 answers:

Tom [10]2 years ago

4 0

Hey sorry I can’t help but use Mathaway or Photomath to help!

Rama09 [41]2 years ago

3 0

Answer:

1 + tan²A = sec²A = 1/cos²A

2tan(X/2)/(1+tan²(X/2))

= 2tan(X/2)cos²(X/2)

= 2[sin(X/2)÷cos(X/2)]cos²(X/2)

= 2sin(X/2)cos(X/2)

= sin(X)

Because sin(2A) = 2sin(A)cos(A)

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1. The midpoint of GH is (-2,3), and its endpoints are G (g,4) and H (-2,h). What are the values of g and h

alina1380 [7]

Answer: $(g,h)=(-2,2)$

Step-by-step explanation:

Given

Midpoint is $(-2,3)$

Endpoints are $G(g,4)$ and $H(-2,h)$

Mid point of any two point is given by

$x=\frac{x_1+x_2}{2}$

and $y=\frac{y_1+y_2}{2}$

So, $-2=\frac{g+(-2)}{2}$

$-4=g-2$

$g=-2$

Also

$3=\frac{4+h}{2}$

$6=4+h$

$h=2$

Therefore $(g,h)=(-2,2)$

4 0

3 years ago

17. Anna is 157.5 centimeters tall and her

Alinara [238K]

15.26 mm. All you gotta do is convert the millimeters to centimeters, and that subtract. Make sure the decimal point is right, tho. :)

5 0

1 year ago

How could you check your work in problem 4 ? Describe each step

tamaranim1 [39]

Answer:

tiger algebra

Step-by-step explanation:

if this is a math question and it's not a word problem tiger algebra can go step by step

7 0

3 years ago

Which of the following sets of numbers could represent the three sides of a right triangle?

Sindrei [870]

Answer:

32 60 68

Step-by-step explanation:

These set of numbers are pythagorean triplets

using the formula a2+b2 =c2 with these numbers would give you an accurate relationship in a right angled triangle

4 0

3 years ago

In the general population, one woman in eight will develop breast

MArishka [77]

Answer:

a) 8/10

b) $0.001 \overline{33}$

c) Independent events

Step-by-step explanation:

The given information are;

The proportion of women than carries a mutation of the BRCA gene, P(A) = 1/600

The proportion of women in which the mutation develops breast cancer, P(B) = 8/10

a) The probability that a randomly selected woman will develop breast cancer given that she has a mutation of the BRCA gene is given as follows;

1 × P(B) = 1 × 8/10 = 8/10

b) The probability, P that a randomly selected woman woman will carry the mutation of the BRCA gene and will develop breast cancer is given as follows;

P(A) × P(B) = 1/600×8/10 = 1/750 = $0.001 \overline{33}$

c) The events are dependent

Given that P(A) × P(B) = P(A∩B), the events of carrying the mutation and developing Breast cancer are independent events.

4 0

3 years ago