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3 years ago

Please show all work i’ll mark brainliest

Mathematics

1 answer:

faltersainse [42]3 years ago

4 0

Answer:

Step-by-step explanation:

Draw a picture to see that the radius must be 7.

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(sec 12A - 1)/(sec 6A -1) = tan 12A / tan 3A

Ganezh [65]

Can I use dis... do u know how to use dis?

5 0

3 years ago

1/4x +4 = 1/2 solve with explanation

IRINA_888 [86]

Answer:

Step-by-step explanation:

Given the equation

1/4x +4 = 1/2

Solving for x

Subtract 4 from both sides

1/4x +4 - 4 = 1/2 - 4

1/4 x = (1-8)/2

1/4 x = -7/2

Cross multiply

2x = -7*4

2x = -28

x = -28/2

x = -14

Hence the value of x is -14

3 0

3 years ago

Click an item in the list or group of pictures at the bottom of the problem and, holding the button down, drag it into the

S_A_V [24]

Answer:

8^2 = b^2 + 4^2

Step-by-step explanation:

5 0

2 years ago

Can two fractions with the same numerator and different denominators be equal?

Ede4ka [16]

Answer:

Step-by-step explanation:

You can only have the same denominator

Example:

2 3 5

- + - = -

9 9 9

8 0

3 years ago

Three fourths a number plus 8 is 20 less than the number

VARVARA [1.3K]

Answer:

Equation: $\frac{3}{4}n+8=n-20$

Solve for n: n = 112

Step-by-step explanation:

To first set up the equation, you need to look at the verbal description and translate into numbers and operations:

'three fourths a number' = $\frac{3}{4} n$

'plus 8' = + 8

'is' =

'20 less' = - 20

'the number' = n

Put the expressions together:

'three fourths a number plus 8': $\frac{3}{4}n+8$

'20 less than the number': n - 20

Set them equal to each other and solve: $\frac{3}{4}n+8=n-20$

Add 20 to both sides: $\frac{3}{4}n+8+20=n-20+20$

Subtract $\frac{3}{4}n$ from both sides: $\frac{3}{4}n-\frac{3}{4}n+28=n-\frac{3}{4}n$

Multiply both sides by $\frac{4}{1}$ : $\frac{4}{1}28=\frac{1}{4}n\frac{4}{1}$

Solve for n: n = 112

7 0

3 years ago