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3 years ago

Hellppppp

Mathematics

2 answers:

statuscvo [17]3 years ago

7 0

I think B is correct

ikadub [295]3 years ago

4 0

Answer:

ITS B. its increases from point -4,2 to 0,6 and decreases from point 0,6 to 4,2

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16 less than a number equals -19. what is the number?

Sav [38]

The number is -3 because -3 minus 16 equals -19.

4 0

3 years ago

Read 2 more answers

You are given that cos(A)=−35, with A in Quadrant II, and cos(B)=817, with B in Quadrant I. Find cos(A−B). Give your answer as a

neonofarm [45]

cos (A - B) is 36/85

<h3>How to simply the identity</h3>

Expand cos(A - B) with the identity

You get, cos(A - B) = cos(A) cos(B) + sin(A) sin(B)

Since A is in quadrant II, so sin(A) > 0,

B is in quadrant I, so sin(B) > 0.

Using the Pythagorean identity, we get

cos²(A) + sin²(A) = 1

Make sin A the subject of formula

$sin(A)^{2}$ = ( $\sqrt{(1 - (-3/5}$ )²)

Find the square root of both sides, square root cancels square

$sin A$ = 4/5

Repeat the same for the second value

$sin A^{2} = \sqrt{(1- 8/17)^2}$

$sin A$ = 15/17

Substitute values into cos(A - B)

cos(A - B) = cos(A) cos(B) + sin(A) sin(B) = (-3/5) * 8/17 + 4/5 * 15/17

cos (A - B) = 36/85

Therefore, cos (A - B) is 36/85

Learn more about trigonometric identities here:

brainly.com/question/7331447

#SPJ1

3 0

2 years ago

Read 2 more answers

Help me with this problem

vova2212 [387]

Answer:

The answer is 180 - 65

Step-by-step explanation:

We got 180, because that is the number of degree's in a line

so 180 - 65 is 115 degrees, that's your answer :)

7 0

3 years ago

Aisha and jordan start by making a floor plan for their treehouWhich revision of these two sentences best shows that the coach b

irina1246 [14]

Answer: Statements 1 and 2 shows that the coach blowing the whistle happened first.

Step-by-step explanation: The coach blowing the whistle as the first event can be seen only from statements 1 and 2 only.

From statement 1, "the referee blew the whistle" was followed by "the team ran onto the field."

From statement 2, "before the team ran onto the field" shows clearly that one event took place "BEFORE" the one being reported and the one that occurred before this one was "the referee blew the whistle."

Statement 3 which is "the referee blew the whistle, BUT..." indicates that the whistle was meant to prevent the team from from running onto the field. So if the referee blew the whistle, but the team ran onto the field, it means the whistle blowing was not supposed to make them run onto the field.

Statement 4, which states that "the referee blew the whistle BECAUSE the team ran onto the field" indicates that, the reason for blowing the whistle was because the team ran onto the field which clearly shows that the team ran onto the field first before the referee blew the whistle.

Statement 5, "WHILE the team ran onto the field..." clearly shows that both events took place at the same moment, and so the referee blowing the whistle could not have occurred first.

8 0

3 years ago

What is the coefficient of x^2 in the expansion of (x+2)^3

goldenfox [79]

(x+2)^3=x^3+2^3+3*x^2*2+3x*2^2=x^3+8+6x^2+12x

The coeficient of the x^2 is 6.

3 0

3 years ago