All categories

3 years ago

Perform the indicated operation.

Mathematics

2 answers:

notka56 [123]3 years ago

8 0

Answer:

$7\sqrt{3}$

Step-by-step explanation:

$\sqrt{12} \: can \: be \: simplified \: as \: 2 \sqrt{3} \: and \: \sqrt{75} \: canbe \: simplified \: as \: 5 \sqrt{3} \\ after \: simplifying \: we \: can \: add \: them \: up \\ 2 \sqrt{3} + 5 \sqrt{3} = 7 \sqrt{3}$

galina1969 [7]3 years ago

5 0

Answer:

√75 = 5√3 and √12 = 2√3 so √75 + √12 = 5√3 + 2√3 = 7√3.

You might be interested in

Please help me im confused as heck

Gwar [14]

So they’re supplementary angles which means that they add up to 180°… The equation would be: 5w+1+7w-7=180

5w+1+7w-7=180 (combine like terms)
12w-6=180
+6 +6
12w=186
w=15.5

Im not sure what they’re asking for but if they’re asking for w, your answer is 15.5, if they’re asking for the angle measure on the left, your answer is 78.5° & if they’re asking for the angle measure on the right, your answer is 101.5° :) hope this helps

3 0

2 years ago

Read 2 more answers

Use a model to divide 2÷1/3

frutty [35]

.....

........

....ncncj

8 0

3 years ago

The ratio of runners to swimmers was 3:2. When 28 runners dropped out of the competition, the ratio became 5:6. How many total s

xz_007 [3.2K]

The total of 42 swimmers are competing

Step-by-step explanation:

The given is:

The ratio of runners to swimmers was 3 : 2
When 28 runners dropped out of the competition, the ratio became 5 : 6

We need to find how many total swimmers are competing

∵ The ratio of runners to swimmers was 3 : 2

- Multiply each term of the ratio by x

∴ There are 3x runners and 2x swimmers

∵ 28 runners dropped out of the competition

∴ The number of runners who complete = 3x - 28

∵ The ratio became 5 : 6

- Equate the ratio between the new number of runners and the

number of swimmers by 5 : 6

∵ The new number of runners = 3x - 28

∵ The number of swimmers = 2x

∴ $\frac{3x-28}{2x}=\frac{5}{6}$

- By using cross multiplication

∴ 6(3x - 28) = 5(2x)

- Simplify both sides

∴ 18x - 168 = 10x

- Add 168 to both sides

∴ 18x = 10x + 168

- Subtract 10x from both sides

∴ 8x = 168

- Divide both sides by 8

∴ x = 21

∵ The number of swimmers is 2x

∵ x = 21

∴ The number of swimmers = 2(21) = 42

The total of 42 swimmers are competing

Learn more:

You can learn more about the ratio in brainly.com/question/2707032

#LearnwithBrainly

7 0

3 years ago

WILL GIVE BRAINLIEST

Olenka [21]

Janine’s error is that she incorrectly counted the spaces that point C has shifted. Focusing on point C like Janine did, to get to point C’ you would need to shift 3 units to the left and 5 units down. This would make the new translation rule (x-3, y-5) to get from triangle ABC to triangle A’B’C’.

5 0

4 years ago

The theorical probability of spinning a 1 is

ddd [48]

Answer:

1/6

Step-by-step explanation:

Intuitively, since the sizes of 1,2,3,4,5,6 are all the same, we can deduce that landing any of these numbers have the same probability. Thus, since there are 6 numbers the answer is 1/6

4 0

3 years ago