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3 years ago

I need help pleaseee!!

Mathematics

2 answers:

Katyanochek1 [597]3 years ago

7 0

Answer:

Step-by-step explanation:

12 cm

Alika [10]3 years ago

3 0

Answer:

12 cm

Step-by-step explanation:

(whole secant) x (external part) = (tangent)^2

(4+x) * 4 = 8^2

Distribute

16+4x = 64

Subtract 16

4x =48

Divide by 4

4x/4 = 48/4

x = 12

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PLS I NEED ASAP WILL GIVE BRAINLIEST

Darya [45]

For this case we have that by definition, a linear equation is of the form:

$ax + b = 0$

The variable (s) involved in the equation always have exponent 1.

Some examples of linear equations are:

$x + 5 = 3y\\y + 6 = 3x\\y = 2x + 2$

Answer:

In a linear equation the variables have exponent 1.

$y = 2x + 2$

5 0

2 years ago

Help ASAP pls :) brainly to whoever has the right answer first :D

Fed [463]

Answer:

0.02 (rational)

2 (rational)

Square root of 2 (irrational)

Square root 1/2 (irrational)

Step-by-step explanation:

Rational numbers are numbers that can be in form of a/b such that a and b are not zeros. In other words, a and b are integers ranging from 1 to infinity.

Conversely, irrational numbers are numbers that are endless and are non repeating digits after decimal point.

Thus, from the questions above;

$0.02 = \frac{2}{100} = rational \: number$

$2 = \frac{2}{1} = rational \: number$

$\sqrt{2} = 1.41421356 = irrational \: number$

$\sqrt{ \frac{1}{2} } = 0.70710678 = irrational \: number$

6 0

3 years ago

Help pls and thank you :)

ss7ja [257]

Answer:

Step-by-step explanation:

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3 0

2 years ago

Read 2 more answers

A rabbit population doubles every 4 weeks. There are currently five rabbits in a restricted area. If t represents the time, in w

Mumz [18]

98 days = (98 ⁄ 7) weeks = 14 weeks

Po = initial population = 5 

Ƭ = doubling time in weeks 

t = elapsed time in weeks 

P{t} = population after "t" weeks 

 P{t} = (Po)•2^(t ⁄ Ƭ) 

 P{t} = (Po)•2^(t ⁄ 4) 

 P{t} = 5•2^(t ⁄ 4) 

 P{14} = (5)•2^(14 ⁄ 4) … t = 14 weeks = 98 days 

 P{14} = 56 … population after 14 weeks

6 0

3 years ago

A geometric series has second term 375 and fifth term 81 . find the sum to infinity of series .

Eduardwww [97]

Answer: $\bold{S_{\infty}=\dfrac{3125}{2}=1562.5}$

Step-by-step explanation:

a₁, 375, a₃, a₄, 81

First, let's find the ratio (r). There are three multiple from 375 to 81.

$375r^3=81\\\\r^3=\dfrac{81}{375}\\\\\\r^3=\dfrac{27}{125}\qquad \leftarrow simplied\\\\\\\sqrt[3]{r^3} =\sqrt[3]{\dfrac{27}{125}}\\ \\\\r=\dfrac{3}{5}$

Next, let's find a₁

$a_1\bigg(\dfrac{3}{5}\bigg)=375\\\\\\a_1=375\bigg(\dfrac{5}{3}\bigg)\\\\\\a_1=125(5)\\\\\\a_1=625$

Lastly, Use the Infinite Geometric Sum Formula to find the sum:

$S_{\infty}=\dfrac{a_1}{1-r}\\\\\\.\quad =\dfrac{625}{1-\frac{3}{5}}\\\\\\.\quad =\dfrac{625}{\frac{2}{5}}\\\\\\.\quad = \dfrac{625(5)}{2}\\\\\\.\quad = \large\boxed{\dfrac{3125}{2}}$

7 0

3 years ago