plz help if u can! i’ll mark brainlist! plz solve b. plz! ur worth every breath! <3

Answer:

[tex]Solution,\\a +b+c=270\\or, a +b = 270-c\\[/tex]

[tex]cos(a+b) = cos(270-c)~~~~~~~~~and~~~~~~~~~sin(a+b)=sin(270-c)\\or, cos(a+b) = -sinc,~sin(a+b) = -cosc\\Now,\\L.H.S. = sina.cosb.sinc +cosa.sinb.sinc + sina.sinb.cosc\\~~~~~~~~~~= sinc (sina.cosb+cosa.sinb)+sina.sinb.cosc\\~~~~~~~~~~=sinc[sin(a+b)]+sina.sinb.cosc\\~~~~~~~~~~=sinc.-cosc+sina.sinb.cosc\\~~~~~~~~~~=cosc(sina.sinb-sinc)\\~~~~~~~~~~=cosc[sina.sinb+cos(a+b)]\\~~~~~~~~~~=cosc[sina.sinb+cosa.cosb-sina.sinb]\\~~~~~~~~~~=cosc.cosa.cosb\\~~~~~~~~~~=cosa.cosb.cosc \\[/tex]

Hope I helped you!

Answer:

Lower one: (-3, 3)

Higher one: (-4, 6)

Step-by-step explanation:

Go along the "X-axis" the go up or down along the "Y-axis" to get to the black dots.

Answer:

-18

Step-by-step explanation:

Answer:

16 turtles

20 frogs

32 fish

Step-by-step explanation:

let 't' = # turtles

let '4 + t' = # frogs

let '2t' = # fish

t + 4 + t + 2t = 68

4t + 4 = 68

4t = 64

t = 16 turtles

4 + 16 = 20 frogs

2(16) = 32 fish

Answer:

I think it might be 22.40

Step-by-step explanation:

Answer:

Scalene Triangle

Step-by-step explanation:

We are told that he drew a triangle MNR. Now, the sides are given as;

MN = 2 cm

NR = 4 cm

RM = 3 cm

This means that the 3 sides are not equal. And a triangle with it's 3 sides being unequal is called a scale me triangle.

Answer:

Scalene Triangle

Step-by-step explanation:

We are told that he drew a triangle MNR. Now, the sides are given as;

MN = 2 cm

NR = 4 cm

RM = 3 cm

This means that the 3 sides are not equal. And a triangle with it's 3 sides being unequal is called a scale me triangle.

Answer:

-25

Step-by-step explanation:

Step 1: 2-9-5-3-2-[tex]2^{3}[/tex]

Step 2: 2-9-5-3-2-8

Step 3: -25

Answer:  16

Step-by-step explanation:

i did the math trust me

Answer:

18,000 grams of rice

Step-by-step explanation:

First multiply 3 x 6 to find out how many kilograms total the crew is carrying. Then convert the 18 kilograms into grams by multiplying by 1000.

Hope it helps!

Answer:

Add  −4 and 5.

1=1

Step-by-step explanation: like hopefuly this can helpp

Answer:

28.3

Step-by-step explanation:

Step-by-step explanation:

[tex] \frac{ {x}^{15} }{ {x}^{c} } = { x}^{6} \\ {x}^{15 - c} = {x}^{6} [/tex]

15 - c = 6

15 - 6 = c

9 = c

c = 9

Answer:

Area of Trapezium

Step-by-step explanation:

1/2 ( a + b ) h

hope it helps!

Answer:

1) both lights will blink at the same time every 20 seconds

2)Both lights will blink at the same time every 36 seconds

3) How to determine when 2 lights will blink together is that you must find the least common factor (LCM) of both numbers and when both hit the same number then that is when both lights blink at the same time.

Step-by-step explanation:

For example for number 1 we have 4 and 5 seconds when the lights blink

4: 4, 8, 12, 16, 20...

5: 5, 10, 15, 20...

we see that the LCM factor is 20 and that is when both lights will hit at the same time.

Answer:

27

Step-by-step explanation:

angle 1 = angle 2 because of the vertical angle theorem

2x + 5 = 3x - 6

x = 11

3 (11) - 6

33 - 6

27

Answer:

3:1

Step-by-step explanation:

For every 3 woodwinds, there is 1 percussion.

Note:

6:2, 9:3, 12:4 are equivalent to 3:1.

Every time you add 3 to the first value, and 1 to the second value.

Answer:

3:1

Step-by-step explanation:

it is pretty self-explanatory. For every x amount of percussionists there are y amount of woodwinds.

y:x

y=3

x=1

3:1

Answer:

B. I think

Step-by-step explanation:

1.50 times 86 equals 129 witch would mean Diana bought 86 sodas

8 is equal to 1 pizza so Dianna could have bought 1 pizza

86>1

8+129 is 137 so I think the answer is B.

Answer:

-2x-4

Step-by-step explanation:

try using photomath for questions like these ;)

Answer:

It’s $1167.25

Step-by-step explanation:

Just got a 100%

Answer: 1167.25

Step-by-step explanation:

Step 1.

Calculate the annual premium for liability insurance

= bodily injury premium + property damage premium

= 310 + 245= 555

Step 2.

Add collision & comprehensive premium deductibles

555+ 148+ 102= 805

Step 3.

Calculate the total annual premium

805 x 1.45= 1167.25

Answer:

please continue i'm facinated on were this story goes

Step-by-step explanation:

From the graph, the correct options are given as,
B. Mia left her house 10 minutes before Erick left his house.
D. Erick and Mia arrived at the park at the same time.
E. Erick walked the same distances as Mia during the last 10 minutes.

The graph is a demonstration of curves that gives the relationship between the x and y-axis.

Here,
The graphs show their distances from home over the same 30-minute period as they walked to the park.
From the graph,
It can be concluded that,
Both reach the park at the same time, as the termination point of the curve is the same.
The graph of mia starts after 10 minutes Erick, which implies Mia left her house 10 minutes before Erick left his house. And Erick walked the same distances as Mia during the last 10 minutes as the slope of the last segment of both curves is the same.

Learn more about graphs here:

brainly.com/question/16608196

#SPJ2

Answer:

Step-by-step explanation:

Supplementary angles have a sum of 180 degrees so

67+a=180

a=113

Answer:

3.5

Step-by-step explanation:

Answer:

Just remember that straight lines are always 180° (a + b = f)

Step-by-step explanation:

Assuming the triangle is equiangular and equilateral, a b and c are the same, so they are interchangeable.

f + c = 180 becuase it is a straight line. you can switch out c with a because they are the same. So:

f+a=180

(switch out with b)

f+b=180

GUESSING this is equiangular, a and b must add up to 120 because they are are both 60.

If a line is 180 degrees and c is 60 (same as a and b) then f will be 180-60 which is 120. 120 is the same as the sum of a and b, so you could write:

a + b = f

The relationship between angles f, b, and a could be as a + b = f.

Linear pair of angles are produced when two lines intersect each other at a point. The sum of angles of the linear pair is always 180 degrees.

WE can see that the triangle is equiangular and equilateral, Also angles a b and c are the same, so they are interchangeable.

WE know that the base makes the straight line

f + c = 180

So: f + a = 180

Similarly

f + b = 180

Assuming this is equiangular, a and b must be add to 120, they are both 60 degrees

If we consider the line is 180 degrees and c is 60 then f will be 180-60 which is 120.

120 degree is the same as the sum of a and b, so we could write:

a + b = f

Hence, the relationship between angles f, b, and a could be as a + b = f.

Learn more about angles;

https://brainly.com/question/7116550

#SPJ5

Answer:

2.5 km/s

Step-by-step explanation:

Answer:

Step-by-step explanation:

It depends on velocity of rocket if its speed is 3*10^8 m/s then it will take 30 years and if velocity is different than can find from speed=distance/time .