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3 years ago

What is the value of x ?

Mathematics

1 answer:

Ivan3 years ago

8 0

Answer:

x = 3

Step-by-step explanation:

Given two secants drawn from an external point to the circle, then

The product of the external part and the whole of one secant is equal to the product of the external part and the whole of the other secant, that is

x(x + 21) = (x + 1)(x + 1 + 14)

x² + 21x = (x + 1)(x + 15) ← expand using FOIL

x² + 21x = x² + 16x + 15 ( subtract x² + 16x from both sides )

5x = 15 ( divide both sides by 5 )

x = 3

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198.16 in word form pls help

pogonyaev

Answer:

Hiya there!

Step-by-step explanation:

One hundred ninety-eight and sixteen hundredths.

I think this is correct i'm not that sure.

Hope this <em><u>Helped!</u></em> :D

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3 years ago

in a bag there are 6green balls4 blue balls and 5 yellow balls what is the probability of choosing a green ball

anyanavicka [17]

Answer:

50%

Step-by-step explanation:

3 0

3 years ago

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g The tensile 0.2 percent offset yield strength of AISI 1137 cold-drawn steel bars up to 1 inch in diameter from 2 mills and 25

Vitek1552 [10]

Answer:

107.50

Step-by-step explanation:

Given the following :

Midpoint (S)____F

S y 93 95 97 99 101 103 105 107 109 111 f 19 25 38 17 12 10 5 4 4 2

Calculating the mean and standard deviation using a calculator :

The mean(m) of the data above = 98.12

Standard deviation (sd) = 4.02

Proportion = 99% of population

From z table = 2.33

Using :

Zscore =(x - m) / sd

2.33 = (x - 98.12) / 4.02

2.33 * 4.02 = x - 98.12

9.3666 = x - 98.12

9.3666 + 98.12= x

x = 107.4866

X = 107.50

3 0

3 years ago

Find the value of x. A. 53–√ in B. 241−−√ in C. 55–√ in D. 9

castortr0y [4]

Answer:

<h2>x = 5√3 inches</h2>

Step-by-step explanation:

Since the triangle is a right angled triangle we can use Pythagoras theorem to find the missing side x

Using Pythagoras theorem we have

${a}^{2} = {b}^{2} + {c}^{2}$

where a is the hypotenuse

Substitute the values into the above formula

The hypotenuse is 10 inches

We have

${10}^{2} = {5}^{2} + {x}^{2}$

${x}^{2} = {10}^{2} - {5}^{2}$

${x}^{2} = 100 - 25$

${x}^{2} = 75$

We have the final answer as

<h3>x = 5√3 inches</h3>

Hope this helps you

3 0

3 years ago

Find the missing side or angle. Round to the nearest tenth. C=53° B= 80° a=2 b=[ ? ]

Degger [83]

9514 1404 393

Answer:

b ≈ 2.7

Step-by-step explanation:

The missing angle A is ...

A = 180° -53° -80° = 47°

The law of sines tells you ...

b/sin(B) = a/sin(A)

b = sin(80°)×2/sin(47°) ≈ 2.6931

Side b is about 2.7 units.

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3 years ago

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