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2 years ago

Explain why 3 into 5 into 7 + 7 into 11 is a composite number

Mathematics

1 answer:

Ulleksa [173]2 years ago

3 0

Answer:

As per BODMAS rule: 3 x 5 x 7 + 7 = 105 + 7 = 112. 112 is an even number and is therefore a composite number

Step-by-step explanation:

you need to do BODMAS so

3 x 5 x 7 = 105

then add 7 so there for 112

112 is an even number and therefore a composite number

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2 years ago

If f(1)=3 and f(n)=3f(n-1) then find the value of f(6).

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Step-by-step explanation:

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2 years ago

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What are the x intercepts of the quadratic function? Y=-x^2+2x-1

saw5 [17]

Answer:

x = 1

Step-by-step explanation:

Given in the question the equation

y = -x² + 2x - 1

To find the x-intercept, substitute in 0 for y

0 = -x² + 2x - 1

To find value of x use quadratic equation

x = -b ± √b²-4ac / 2a

here a = -1

b = 2

c = -1

x1 = -2 + √2²-4(-1)(-1) / 2(-1)

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3 years ago

What is the rule for the sequence with the first four terms below? 0.5, 0.25, 0, –0.25

elena55 [62]

Answer:

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Step-by-step explanation:

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3 years ago

An urn contains two blue balls (denoted B1 and B2) and three white balls (denoted W1, W2, and W3). One ball is drawn from the ur

Serhud [2]

Answer:

$(a)\dfrac{2}{5}$

$(b)\dfrac{9}{25}$

Step-by-step explanation:

An urn contains two blue balls (denoted $B_1 \:and\: B_2$ ) and three white balls (denoted $W_1, W_2 \:and\: W_3$ ).

In the selection, a ball is picked and replaced.

From the attached probability tree, the possible outcomes are:

$B_1B_1,B_1B_2,B_1W_1,B_1W_2,B_1W_3\\B_2B_1,B_2B_2,B_2W_1,B_2W_2,B_2W_3\\W_1B_1,W_1B_2,W_1W_1,W_1W_2,W_1W_3\\W_2B_1,W_2B_2,W_2W_1,W_2W_2,W_2W_3\\W_3B_1,W_3B_2,W_3W_1,W_3W_2,W_3W_3$

(a)If the first ball drawn is blue

Number of Outcomes =10

The probability that the first ball drawn is blue $=\dfrac{10}{25}= \dfrac{2}{5}$

(b)If only white balls are drawn

Number of Outcomes =9

Probability that only white balls are drawn $=\dfrac{9}{25}$

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2 years ago

Explain why 3 into 5 into 7 + 7 into 11 is a composite number​

Explain why 3 into 5 into 7 + 7 into 11 is a composite number