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2 years ago

7

Explain how to multiply square roots

2 answers:

Aleks [24]2 years ago

7 0

When multiplying square roots, we simply multiply the values inside the square roots. So for example, let's look at the problem below.

√a · √a

So the square root of <em>a</em> times the square root of <em>a</em> equals the square root of <em>a</em> time <em>a</em> or √a² and the square root of a² is simply <em>a</em>.

Dmitry_Shevchenko [17]2 years ago

5 0

Answer:

To multiply square roots, first multiply the radicands, or the numbers underneath the radical sign. If there are any coefficients in front of the radical sign, multiply them together as well. Finally, if the new radicand can be divided out by a perfect square, factor out this perfect square and simplify it.

Step-by-step explanation:

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Can someone please help me find this answer.

Stels [109]

Answer:

-2x+4

Step-by-step explanation:

multiply all the components of the bracket by - 1.

then you arrive at the answer above

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2 years ago

If a section of a circle graph needs to represent 15%, then its angle measure will be a0 degrees.

mash [69]

We know that
<span>Since a circle is 360 degrees,
then
360</span>°-----------> 100%
<span>x </span>°----------> <span>15%
</span>x=15*360/100-----> x=54°

the answer is
54 degrees

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2 years ago

Read 2 more answers

The taxi fare in a city is as follows: For the first kilometer, the

Ksju [112]

Answer:

The linear equation is y = 6 x + 9

The graph is attached down

Step-by-step explanation:

The given information:

The cost of 1st km is 9 Rs

The cost of every kilometer after the first is 6 Rs

x represents the number of km

y represents the total cost of x km

The form of the linear equation is

y = m x + b, where

m is the slope of the line (rate of change)
b is the y-intercept (initial value)

From the given information above

m = 6 Rs/km

b = 9 Rs

Substitute them in the form of the equation

y = 6 x + 9

The graph:

3 0

2 years ago

2. Spin a spinner with 8 numbered sections of equal size.<br> Outcome<br> 2 3 Tu<br> Probability

kicyunya [14]

Answer:

Total number of sections= 8

p(red)= 3/8

p(yellow)= 2/8= 1/4

p(blue)= 3/8

3 0

2 years ago

If u = -8i + 7j, what is the magnitude of -5u? Simplify any radicals.

lubasha [3.4K]

Answer:

$- 5 \sqrt{113}$

Step-by-step explanation:

Find the magnitude of the complex number

Notice the magnitude is equal to

$u = \sqrt{ {a}^{2} + {b}^{2} }$

where a is the real number and b is the imaginary number.

Substitute

$u = \sqrt{ - 8 {}^{2} + 7 {}^{2} }$

$u = \sqrt{64 + 49}$

$u = \sqrt{113}$

Multiply this by -5

$- 5 \sqrt{113}$

7 0

2 years ago