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3 years ago

2V45+2V20 what is the answer

Mathematics

1 answer:

Ira Lisetskai [31]3 years ago

3 0

Answer:

Step-by-step explanation:

$2\sqrt{45}+2\sqrt{20}=2\sqrt{3*3*5}+2\sqrt{2*2*5}\\\\ =2*3\sqrt{5}+2*2\sqrt{5}\\\\=6\sqrt{5}+4\sqrt{5}\\\\=10\sqrt{5}$

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Makovka662 [10]

The angle RSV would be 42°

5 0

3 years ago

If you were to use the substitution method to solve the following system, choose the new equation after the expression equivalen

MrRissso [65]

Answer:

Option A

Step-by-step explanation:

Step 1: Naming both equations:

$Eq. 1: 3x + 2y=-21\\Eq. 2 : x-3y=4$

Step 2: Isolating x in Eq. 2

$x=3y+4$

Step 3: Replacing x in Eq. 1

$3(3y+4)+2y=-21$

Therefore, the answer is Option A

4 0

4 years ago

What is 6/12 as a decimal yall?

Anna71 [15]

6/12 in decimal form is .5 because 12/6

8 0

3 years ago

Read 2 more answers

What is the speed of a housefly in feet per second round to the nearest hundredth

IRINA_888 [86]

<span>The speed of the housefly miles per hour is equals to:
=> In every 1 mile = 5280 feet
=> 4.4 miles = 23 232 feet
=> now let’s convert the hour to seconds
=> In 1 hour = 3 600 seconds
Thus:
=> 23 232 / 3600
=> 6.4533333…. repeating decimals.
Then it says in the problem ti round off to the nearest hundredths
=> 6.45 feet / seconds – The speed of the housefly in feet per seconds</span><span>

</span>

3 0

3 years ago

Could you help me with this plz

serious [3.7K]

Answer:

B. 203.403

Step-by-step explanation:

2 times 100 = 200

3 times 1 = 3

4 times 1/10 = 0.4

3 times 1/1000 = 0.003

200 + 3 = 203

203 + 0.4 = 203.4

203.4 + 0.003 = 203.403

3 0

3 years ago