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3 years ago

Match the expressions with their simplified versions.

Mathematics

2 answers:

oee [108]3 years ago

8 0

Answer are in order from top to bottom

1. 8

2. square of 7

3. 1/2

4. 20

Alenkasestr [34]3 years ago

3 0

Answer:

Step-by-step explanation:

1. $4\sqrt{2}*\sqrt{2} = 4*\sqrt{2}^{2}=4*2=8$

2. $3\sqrt{7} -2\sqrt{7} =(3-2) \sqrt{7} = 1*\sqrt{7} =\sqrt{7}$

3. $\frac{\sqrt{7} }{2\sqrt{7} } =\frac{1}{2}$

4. $2\sqrt{5} *2\sqrt{5} =2*2*\sqrt{5} *\sqrt{5}=4*5=20$

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dezoksy [38]

Answer:

Step-by-step explanation:

1. 1/5 = 2/10

2. 2/10 = 20%

3. 20% = 0.2

4. 35 x 0.2 = 7

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2 years ago

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ElenaW [278]

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3 years ago

What is the measure of

Anastasy [175]

Hey!!!

here's your answer

X+128=180( sum of angle in straight line)

or,X=180-128

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So the value of X is 52 degree.

Hope it helps...

Good luck on your assignment

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2 years ago

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A ball is thrown into the air with an upward velocity of 36 ft/s. Its height h in feet after t seconds is given by the function

Aloiza [94]

The ball's maximum height is 30.25 feet.

<h3>What is quadratic equation?</h3>

A quadratic equation in math is a second-degree equation of the form ax² + bx + c = 0. Here a, b, are the coefficients, c is the constant term, and x is the variable.

Given:

h= -16t²+36t+10

Differentiate w.r.t. 't',

h' = -32t+36

When h=0, that will be the maximum height

32t= 36

t= 9/8

t= 1.125 sec.

So, The maximum height is

h(1.123)= -16(1.125)² + 36*1.125+10

h(1.125) = 30.25 feet.

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brainly.com/question/10335037

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1 year ago

How long will it take for an investment to triple if it is compounded continuously at 12%

myrzilka [38]

Answer:

9.694 years

Step-by-step explanation:

Let the investment is $P.

So, we are asked to determine the time it will grow to triple with the compound interest rate of 12%.

Let the time is y years.

So, from the formula of compound interest we can write

$3P = P(1 + \frac{12}{100} )^{y}$

⇒ $(1 + \frac{12}{100} )^{y} = 3$

⇒ $(1.12)^{y} = 3$

Now, taking log both sides we get,

y log 1.12 = log 3 {Since, $\log a^{b} = b \log a$ }

⇒ 0.04922y = 0.477712

⇒ y = 9.694 years (Answer)

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