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4 years ago

A = 3d work out the value of 'a' when , d= 5

Mathematics

2 answers:

LUCKY_DIMON [66]4 years ago

8 0

Answer:

Step-by-step explanation:

a = 3d

Let d=5

a = 3*5

a = 15

Elodia [21]4 years ago

5 0

Hope this helps! feel free to clarify!

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The quotient of a number and 7 is greater than or equal to 20

Rina8888 [55]

Answer:

a is greater than or equal to 140

Step-by-step explanation:

Multiply both sides by 7, which cancels out the 7 and turns 20 into 140

6 0

3 years ago

Use the binomial expression (p+q)^n to calculate a binomial distribution with n=5 and p=0.3.(Show all steps)

Helen [10]

Answer:

The binomial in expanded form is $(0.3 + q)^{5} = \frac{243}{100000} + \frac{81}{2000}\cdot q + \frac{27}{100}\cdot q^{2} + \frac{9}{10} \cdot q^{3} + \frac{3}{2}\cdot q^{4} + q^{5}$ .

Step-by-step explanation:

The Binomial Theorem states that a binomial of the form $(a + b)^{n}$ can be expanded by using the following identity:

$(a + b)^{n} = \Sigma \limits^{n}_{k = 0}\,\frac{n!}{k!\cdot (n-k)!}\cdot a^{n-k}\cdot b^{k}$ (1)

If we know that $a = p = 0.3$ and $n = 5$ , then the expanded form of the binomial is:

$(p+q)^{n} = \frac{243}{100000} + 5\cdot \left(\frac{81}{10000} \right)\cdot q + 10\cdot \left(\frac{27}{1000})\cdot q^{2} + 10\cdot \left(\frac{9}{100} \right)\cdot q^{3} + 5\cdot \left(\frac{3}{10} \right)\cdot q^{4} + q^{5}$

$(0.3 + q)^{5} = \frac{243}{100000} + \frac{81}{2000}\cdot q + \frac{27}{100}\cdot q^{2} + \frac{9}{10} \cdot q^{3} + \frac{3}{2}\cdot q^{4} + q^{5}$

8 0

3 years ago

After eating at your favorite restaurant, you know that the bill before tax is

elixir [45]

Answer:

$3.16

Step-by-step explanation:

6% x $52.60 = $3.16 (2dp)

Topic: Percentage

If you like to venture further, please give my Instagram page a follow (learntionary). I'll be constantly posting math tips and notes! Thanks!

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3 years ago

It’s number 37. Thanks!

joja [24]

Answer: 11 and 12

Step-by-step explanation:

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3 years ago

How to convert a fraction to the simplest term

Leto [7]

Okay so take 12/20 for example 12 is divisible by 4 now check if 20 is divisible by 4 so that would be 3/5

Hope that this helped you (;

6 0

3 years ago

A = 3d work out the value of 'a' when , d= 5​

A = 3d work out the value of 'a' when , d= 5