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3 years ago

Simplify radical of 27

Mathematics

1 answer:

olga55 [171]3 years ago

8 0

Yo mean sqrt 27 or √27

remember
√(xy)=(√x)(√y)

√27=(√9)(√3)=(3)(√3)=3√3

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Translate the expression: four times the difference of 7 and a number.

ivolga24 [154]

Answer:

4 x (7-x)

Step-by-step explanation:

4 times (multiply) the difference (subtraction) of 7 and a number (seeing as how you don't know that number use a variable, x)

6 0

1 year ago

Hi please help , With solution if it's ok

Snowcat [4.5K]

Answers with Method:-

1) Multiply the length value by 100,000.

$2.5 \: hm = 2.5 \times 100000$

$= >2.5 \: hm = 250000 \: mm$

2) For this, divide the length value by 1000.

$= > \frac{1800}{1000}$

$= > 1.8 \: dam$

3) For finding the approximate value, just multiply the value of length by 1.609.

$= >6450 \: m = (6450 \times 1.609) \: km$

$= > 10380.27 \: km$

4) Multiply the given mass value by 100.

$= > 1.2 \: kg = 1.2 \times 100$

$= > 1200 \: g$

5) Multiply the given value by 10,000.

$4.37 \: dag = 4.37 \times 10000$

$= > 43700 \: mg$

5 0

2 years ago

Which angle measures create a triangle with three different side lengths?

dedylja [7]

Answer:

Step-by-step explanation:

For 3 different side lengths, you need 3 different angles. That eliminates A, B and D.

A: In the case of A, The angles do not add up to 180 so this is not possible. Even if it was, the angles are all the same and the side lengths would be as well.

B: Two angles are the same, therefore, 2 sides will be the same, even though the two sides added together will be larger than the side opposite.

D: Two angles are the same. The angles add to 180. The triangle will have 2 equal sides.

C: Answer. The three given angles add to 180. They are different. Unless the side opposite 93 exceeds the length of the other 2 sides, this forms a triangle with 3 different sides. Using other methods to calculate the answer the other 2 sides do exceed the the base length so everything is fine.

3 0

2 years ago

Find the points which divide the line segment joining the points (0, -3) and (7,1) in the ratio 2:3

rewona [7]

Answer:

Known two points, list function expression, use

$y-y_{0}=k(x-x_{0})$

$k= \frac{y_{2} -y_{1\\}}{x_{2} -x_{1} }$

The function expression is

$y=\frac{4}{7}x-3$

It is known that the cross section of two points is 7, so the point of 2:3 is 14 / 5, that is, 0 + 14 / 5 is the abscissa of the point, which is substituted into the original equation to get y = - 7 / 5.

So the result is $(\frac{14}{5} ,-\frac{7}{5} )$

3 0

2 years ago

Percents

Nana76 [90]

Answer:

As a percent: 115%

As a decimal: 1.15

As a fraction: $\frac{23}{20}$

Step-by-step explanation:

Percentages

Suppose Michael spends some amount of money on food, and that money is set at 100%. He leaves a 15% tip for the waitress.

Thus, he is really paying 100%+15% = 115% of the original price.

To express a percentage as a decimal, we just divide by 100:

115% = 115/100 = 1.15

The same division should be simplified instead of operated to express the percentage as a fraction:

115% = $\frac{115}{100}$

Simplifying by 5:

115% = $\frac{23}{20}$

Summarizing:

As a percent: 115%

As a decimal: 1.15

As a fraction: $\frac{23}{20}$

5 0

2 years ago