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katrin2010 [14]
3 years ago
10

Is V 5 rational or irrational

Mathematics
1 answer:
madreJ [45]3 years ago
4 0

Answer:

it's a whole number

Step-by-step explanation:

it's a whole number

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Which term of the A.P 21,42,63,84.......is 210​
Alexxandr [17]

Answer:

T₁₀

Step-by-step explanation:

We know the first term is 21, which is a

We work out the difference by taking 21 away from 42 which equals 21.

We then use the general formula:

Tₓ = a + (x-1)(d)

We need to find the term which equals 210

210 = 21 + (x - 1)(21)

210 = 21 - 21 + 21x

210 = 21x

x = 10

Hence it is the 10 term when the thing equals 210.

4 0
3 years ago
What equals -6 but adds to be 5
Elena L [17]

Answer:

-11

Step-by-step explanation:

-11 minus 5 is -6

8 0
3 years ago
charissa ordered 3 cans of lemonade for each person at her party. She also ordered 1 pizza for every 4 people. If she ordered 6
krek1111 [17]

Answer:

72 cans

Step-by-step explanation:

step 1

Find the number of people

we know that

She ordered 1 pizza for every 4 people

using proportion

Find out the number of people for 6 pizzas

\frac{1}{4}=\frac{6}{x}\\\\x=24\ people

step 2

Find the number of cans ordered

we know that

Charissa ordered 3 cans of lemonade for each person

so

using proportion

Find out the number of cans of lemonade she ordered for 24 people

\frac{3}{1}=\frac{x}{24}\\\\x=24(3)\\\\x=72\ cans

7 0
3 years ago
John and Alan have a collection of x baseball cards. John has x4 cards. What fraction of the cards does Alan have?
melomori [17]
Number of cards of John: J
Number of cards of Alan: A

<span>John and Alan have a collection of x baseball cards:
J+A=x    (1)

</span>John has x/4 cards:
J=x/4

<span>What fraction of the cards does Alan have?
</span>
Replacing J by x/4 in the equation (1)
(1) J+A=x
x/4+A=x

Solving for A:
x/4+A-x/4=x-x/4
A=4x/4-x/4
A=(4x-x)/4
A=3x/4

Answer: Alan has 3/4 of the cards 

8 0
3 years ago
Find the determinancof the matrix Q.
stepan [7]

Using a Laplace expansion along the first column, we have

\det Q=2\det\begin{bmatrix}2&1\\-1&6\end{bmatrix}+3\det\begin{bmatrix}3&4\\-1&6\end{bmatrix}+5\det\begin{bmatrix}3&4\\2&1\end{bmatrix}

The determinant of a 2x2 matrix is trivial,

\det\begin{bmatrix}a&b\\c&d\end{bmatrix}=ad-bc

So we have

\det Q=2\cdot13+3\cdot22+5\cdot(-5)=67

5 0
4 years ago
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