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3 years ago

12

Solve the expression 5x+2 1/2=15

1 answer:

Jobisdone [24]3 years ago

7 0

X= 2.5 that is the correct answer

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Please help ♡♡♡♡♡♡♡

lions [1.4K]

Step-by-step explanation:

$\angle AOB$ and $\angle BOC$ are linear pair angles.

$\therefore m\angle AOB + m\angle BOC = 180° \\ \therefore \: 3x + 124 \degree + 6x + 29 \degree = 180° \\ \therefore \: 9x + 153 \degree = 180° \\ \therefore \: 9x = 180° - 153 \degree \\ \therefore \: 9x = 27 \degree \\ \therefore \:x = \frac{27 \degree }{9} \\ \huge \pink{ \boxed{\therefore \:x =3 \degree }} \\ \\ \because \: m\angle BOC =6x + 29 \degree \\ \therefore \: m\angle BOC =6 \times3 \degree + 29 \degree \\ \therefore \: m\angle BOC = 18\degree + 29 \degree \\ \\ \huge \red{ \boxed{\therefore \: m\angle BOC = 47 \degree }}$

5 0

3 years ago

Terri Clifford bought a Sunday dress for $36. The sales tax was 6%. Find the total cost of the dress.

Kipish [7]

Total cost is $38.16

Multiply 36 by 0.06 (2.16)
Add 2.16 to 36 (38.16)

6 0

3 years ago

Read 2 more answers

Solve the equation: sin(2x)= sin x

Anna [14]

Answer:

Below

Step-by-step explanation:

sin(2x) = 2 ×cos(x)× sin(x)

● sin(x) = 2 × cos(x) × sin(x)

● 2 × cos(x) = 1

● cos (x) = 1/2

So we can deduce that:

● x = Pi/3 + 2*k*Pi

● or x = -Pi/3 + 2*k*Pi

K is an integer

3 0

3 years ago

How to find the exact value of each trigonometric function without a calculator?

Goryan [66]

Remember them is the best way to go.
draw the exact value triangles if you're unsure, but importantly, you just need to memorise these exact values.

5 0

3 years ago

Plssss help can i have a discord and call me plssss

Zina [86]

Answer:

1/24

Step-by-step explanation:

SHAWTYYY THIRSTY

4 0

3 years ago

Read 2 more answers