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2 years ago

What is the value of x in the figure below?

Mathematics

1 answer:

cluponka [151]2 years ago

8 0

Answer:

choice f

Step-by-step explanation:

take ∆ abc

ab^2 = ac^2 + ab^2

400 = 225 + ab^2

ab =√ 175

∆aDB

bd = 20-x

ad^2 = 175 -(20-x)^2

∆acd

225 = x^2 + 175 - 400+ 40x - x^2

225 = -225 + 40x

450 = 40x

x = 45/4

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statuscvo [17]

Answer:

if no one answers pic b cuz i got good luck

Step-by-step explanation:

4 0

3 years ago

To make a cup of tea, 35.5mL of milk is added to 65.45mL of plain tea. How much milk-tea is there in the cup?

valina [46]

Answer 29.95 your welcome.

Step-by-step explanation:

Ok so you will just need to subtract 65.45-35.5 and get your answer.

Ps could have used a calculator.

5 0

3 years ago

Find the equation of a line that has a slope of 2 and passes through the point. point (-7, 5)

sashaice [31]

Answer:

$\large\boxed{y-5=2(x+7)\leftarrow\text{point-slope form}}\\\boxed{y=2x+19\leftarrow\text{slope-intercept form}}$

Step-by-step explanation:

The point-slope form of an equation of a line:

$y-y_1=m(x-x_1)$

m - slope

(x₁, y₁) - point

We have the slope m = 2 and the point (-7, 5) → x₁ = -7, y₁ = 5.

Substitute:

$y-5=2(x-(-7))\\\\y-5=2(x+7)$

Convert to the slope-intercept form (y = mx + b):

$y-5=2(x+7)$ use distributive property

$y-5=2x+14$ add 5 to both sides

$y=2x+19$

7 0

3 years ago

Find the L.C.M of = A) 12 B) 1/2 C) 7 D) 24

Basile [38]

Answer:

Step-by-step explanation:

24/(3/4) = 32

24/ (6/5) = 20

24/(4/15) = 90

6 0

3 years ago

Tunny a VS Siny value

LekaFEV [45]

Answer:

Step-by-step explanation:

Pythagorean Triples obeys the Pythagoras Theorem.

We want to find is the value of x if (13, 84, x) is a Pythagorean triple.

We apply the Pythagoras Theorem to obtain:

${x}^{2}= {84}^{2} + {13}^{2}$

We simplify to get:

${x}^{2}= 7056+ 169$

${x}^{2} = 7225$

Take positive square root;

$x = \sqrt{7225} = 85$

4 0

3 years ago

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