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Vlad [161]
3 years ago
11

What is the square root of 21

Mathematics
2 answers:
Dahasolnce [82]3 years ago
8 0

4.58257569496% is the answer but when estimated its 5 if its possible can you mark me as brainliest need 1 more:) enjoy the rest of your day!

Deffense [45]3 years ago
5 0

The Exact Square Root Is: 4.58257569496

Estimate Is: 5

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Which polynomial represents the difference below?
Lera25 [3.4K]

Answer:

c

Step-by-step explanation:

distribute the parenthesis by - 1 and collect like terms

= 5x² + 9x + 3 - 6x² + 3x

= (5x² - 6x²) + (9x + 3x) + 3

= - x² + 12x + 3 → c


4 0
3 years ago
Maestro Del Valle is baking bars to bring to school and share with his
Murljashka [212]

Answer:

2 eggs and 5 cups sugar

double both equally

4eggs and 10 cups sugar

6 eggs and 15 cups sugar

8 eggs and 20 cups of sugar

or take 20 cups of sugar and divide by 5 cups of sugar. you end up with 4. multiply the 2 eggs by 4. Total will be 8 eggs and 20 cups of sugar

7 0
3 years ago
Which statements are true regarding the rotational symmetry of the shape of a cross? Select three options.
Inga [223]

Answer:

The correct options are;

1) The shape maps unto itself after a rotation of 270 degrees

2) The smallest angle of rotational symmetry is 90 degrees

3) The shape maps unto itself after a rotation of 180 degrees

Step-by-step explanation:

We note that the shape of a cross which consists of two equal members (segments) bisecting each other at right angles such that when a member is placed vertically upright, the other member will be horizontal, therefore we have;

After rotation by 90 degrees, the vertical member will become horizontal and vice versa

After rotation by 180 degrees, the vertical member will become horizontal and vice versa again

Similarly, after rotation by 270  degrees, the once vertical member will become horizontal and the horizontal member will become vertical

6 0
3 years ago
Use properties of power​ series, substitution, and factoring of constants to find the first four nonzero terms of the Taylor ser
Brums [2.3K]

Answer:

Check the explanation

Step-by-step explanation:

Kindly check the attached image below to see the step by step explanation to the question above.

6 0
3 years ago
Kaylin bought a soda and two bags of popcorn for $3.00 . HER brother bought three sodas and a bag of popcorn for $6.50
Veseljchak [2.6K]

Answer: price of soda (a) = $2 and price of popcorn (b) = $0.5

Step-by-step explanation:

Let's denote soda = a and popcorn = b

Kaylin bought a soda and two popcorn, writing out an equation for this would be

a + 2b = $3...........equation (i)

And her brother bought 3 sodas and 1 popcorn.

3a + b = $6.50..........equation (ii)

From equation (i),

a + 2b = 3

Making a the subject of formula,

a = 3 - 2b......equation (iii)

Using substitution reaction, put equation (iii) into equation (ii)

3(3 - 2b) + b = $6.50

9 - 6b + b = 6.50

9 - 5b = 6.50

Collecting like terms,

5b = 9 - 6.50

Divide both sides by 5,

b = 5.

Put b = 5 into equation (i)

a + 2(0.5) = 3

a + 1 = 3

a = 2

Therefore, the price of soda is $2 per one and $0.5 for each popcorn.

4 0
3 years ago
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