Which statement is correct?
​

Answer:

4

Step-by-step explanation:

The incorrect step is Step 4, cos (π/2 -x) cos(-y) + sin (π/2 -x)sin(-y), the correct option is C.

Trigonometric Identities are based on the trigonometric ratios used to solve Trigonometric equations.

The steps used to solve the trigonometric identity are :

Step 1 :  sin(x+y)

Step 2: cos ((π/2) - (x+y))

Step 3 : cos ( (π/2 -x) -y)

Step 4 : cos (π/2 -x) cosy + sin (π/2 -x)siny

Step 5: sinxcosy+cosxsiny

Therefore,the correct step is cos (π/2 -x) cosy + sin (π/2 -x)siny  and not cos (π/2 -x) cos(-y) + sin (π/2 -x)sin(-y) , the incorrect step is Step 4.

The complete question is attached with the answer.

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Answer:

b=−1.8

Step-by-step explanation:

64 because 4 turns into -8 -8 turns into 16 and 16 turns into -32 so it must be 64

Answer/Step-by-step explanation:

We are given the following coordinates of two points on the line of the graph shown in the question as: A(2, 1) and B(4, 2)

Vertical change from point A = [tex] y_2 - y_1 = 2 - 1 = 1 [/tex]

Horizontal change from point A = [tex] x_2 - x_1 = 4 - 2 = 2 [/tex]

Rate of change = [tex] \frac{y_2 - y_1}{x_2 - x_1} = \frac{1}{2} = 0.5 [/tex]

Answer:

10

Step-by-step explanation:

when you divide 80.88 by 8.425 you get 9.6

and since youre rounding, you can round up 6 because its higher than 5

and your final answer should be 10.

hoped this helped! :)

Answer:

2.304

Step-by-step explanation:

Answer:

-3/4

Step-by-step explanation:

y2-y1/x2-x1

0-3/5-1

A line contains points M(1, 3) and N(5, 0). The slope of MN is -3/4.

A line's slope provides information on the steepness and direction of the line. By calculating the difference between the coordinates of the two locations, (x1,y1) and (x2,y2), it is simple to calculate the slope of a straight line between them.

The slope, m, of the line, is calculated through the equation,

The formula used to find the slope is,

m = (y2 - y1)/ (x2 - x1)

Where (x1, y1) and (x2, y2) are the points

The given points on the line are:

M(1, 3) and N(5, 0)

Substituting it in the formula,

m = (0 - 3)/ (5 - 1)

m = -3/4

Therefore, the slope of MN is -3/4.

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Answer:

1

Step-by-step explanation:

you asked to type 1

Answer:

6/7

Step-by-step explanation:

Answer:

6/7

Step-by-step explanation:

divide it by 4

Answer:

The other endpoint is  (9, −6)

Step-by-step explanation:

(x1,y1)=(3,2) and M=(6,−2)

x1+x22=x     and     y1+y22=y

3+x22=6     and     2+y22=−2     ←×2

3+x2=12     and     2+y2=−4

x2=9              and     y2=−6

The coordinates of the other endpoint of the line segment are [tex]Y(x,y) = (-10, 11)[/tex].

Vectorially speaking, the midpoint of a line segment is determined by the following expression:

[tex]M(x,y) = \frac{1}{2}\cdot X(x,y) + \frac{1}{2}\cdot Y(x,y)[/tex] (1)

Where:

If we know that [tex]M(x,y) = (-3, 2)[/tex] and [tex]X(x,y) = (4, -7)[/tex], then the coordinates of the other endpoint is:

[tex]\frac{1}{2}\cdot Y(x,y) = M(x,y) -\frac{1}{2}\cdot X(x,y)[/tex]

[tex]Y(x,y) = 2\cdot M(x,y) -X(x,y)[/tex]

[tex]Y(x,y) = 2\cdot (-3,2)-(4,-7)[/tex]

[tex]Y(x,y) = (-6, 4) - (4, -7)[/tex]

[tex]Y(x,y) = (-10, 11)[/tex]

The coordinates of the other endpoint of the line segment are [tex]Y(x,y) = (-10, 11)[/tex].

We kindly invite to check this question on midpoints: https://brainly.com/question/17506315

Answer:

the last one

Step-by-step explanation:

No points on a function can have the same x value, can you give me brainliest

Answer:

104185

Step-by-step explanation:

Answer:

104,185

Step-by-step explanation:

Answer:

can you provide more information

Step-by-step explanation:

Answer: 9/10

Step-by-step explanation:

3

8

÷

5

12

=

9

10

Result in decimals: 0.9

Calculation steps:

3

8

÷

5

12

=

3

8

×

12

5

=

3 × 12

8 × 5

=

36

40

=

36 ÷ 4

40 ÷ 4

=

9

10

Answer:

9/10

Step-by-step explanation:

i got it right

Answer:

1) c) 150 cm²

2) a) 5 (√3 + 6) m²

Step-by-step explanation:

1) A fórmula para a área lateral do prisma triangular regular é

L.A = Perímetro × Altura

Perímetro = 3 × borda da base

L.A = 3 × 5 cm × 10 cm

L.A = 150cm²

Opção c. 150cm² é a opção correta²

2) Diz-se na pergunta que a área lateral de uma das faces = 10m²

A área lateral de todo o prisma = 3 × 10m²

= 30m²

Onde a borda da base = altura

A área da superfície lateral de uma das faces é: 10m² = Borda da base × Altura da base

Portanto, Altura = √10m

= Borda da base = √10m

A área de superfície total de um prisma triangular é:

2B + Ph

Ph = área de superfície lateral

B = Área de Base

2 (Área da Base) = 2( Borda da Base² × √3/4)

2 (Área da Base) = 2((√10)² × √3 / 4)

2 (Área de Base) = 2(10√3/4)

= 20√3/4

2 (Área da Base) = 5√3 m²

A área de superfície total de um prisma triangular é:

2B + Ph

= 5√3 m² + 30 m²

= 5 (√3 + 6) m²

Answer: I am in highschool and im doing this stuff. If you find out the answer let me know please.

Answer:

pi = pi

Step-by-step explanation:

Circumference = 2 * pi * r

Equation you need:

43.96 = 2 * pi * 7

43.96 = 2 * 7 * pi

43.96 / 14 = pi

pi = 3.14

Answer:

A: 45

B: 110

C: 25

Step-by-step explanation:

all angles of a triangle always add together to make 180

x + 25 + x + 65 = 180

combine like terms

2x + 90 = 180

subtract 90 from both sides of the equation

2x = 180 - 90

divide both sides of the equation by 2

x = 90/2

x = 45

Answer:

C

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

Answer:

yes your answer it right.... brainliest plsss

Answer:

Keith

Step-by-step explanation:

When you are rounding to the nearest hundred it would NOT include a tens or ones value. So in this case 1,300 would be correct.

Hope that helps and have a great day!

Answer:

666

Step-by-step explanation:

Because I said so.

Answer:

Can you give the chart?

Step-by-step explanation:

Answer:

Y=375x

Step-by-step explanation:

Thats it

I think the answer is 2q+2r

Answer:

slope is [tex]\frac{3}{5}[/tex] ; slope-intercept form is y = [tex]\frac{3}{5}[/tex] x + [tex]\frac{13}{20}[/tex] ; point-slope form is 4 - 10 = [tex]\frac{3}{5}[/tex] (-2 - 8)

Step-by-step explanation:

first, we find the slope by using our points (8,10) and (-2,4)

to do so, you use the expression [tex]\frac{y1 - y2}{x1 - x2\\}[/tex] where (8,10) is point 1 and (-2,4) is point 2

this results in [tex]\frac{10-4}{8--2}[/tex]

10-4 is 6 and 8--2 is 10

which results in the slope of [tex]\frac{3}{5}[/tex]

now that we have the slope, we can solve for the y-intercept using the slope-intercept formula [y = mx +b]

we choose a point [im using (8,10)] and but the values in for x and y in the equation, which gives us 10 = 3/5 (8) + b , and solve for b

to solve for b, we start by dividing both sides by 8, resulting in 5/4 = 3/5 +b

then, subtract 3/5 from 5/4, resulting in 13/20 = b

To check the work, we use slope-intercept formula again [yeyyy]

y = 3/5x + 13/20 ; 4 = 3/5 (-2) + 13/20

i used my calculator to check, it's correct

SO: the slope-intercept form of the equation is y = [tex]\frac{3}{5}[/tex] x + [tex]\frac{13}{20}[/tex]

now we get to do the point-slope formula [yeyyyyyyyyyyy!!!]

point-slope formula is y - y1 = m (x - x1)

the slope [m] is [tex]\frac{3}{5}[/tex]

and we use any given point [im using (8,10) again, but any point should technically be correct] for y1 and x1

inputting our values, we get y - 10 = 3/5 (x - 8)

now, you use any other point for x and y to check the work

4 - 10 = 3/5 (-2 - 8)

-2 - 8 is -10, and 3/5 times -10 is -6, which is equal to 4 - 10

Answer:

3/5

Step-by-step explanation:

did the test

Answer:

Step-by-step explanation:

exact form: x=63/5