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3 years ago

Identify the two whole between which the product lies 5×7/10

Mathematics

1 answer:

xxTIMURxx [149]3 years ago

4 0

7/10
10 * 10 = 100
7 * 10 = 70
70/100
5 * .7
3.5

Between 3 and 4

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What is 568 / by 490

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Answer:

It is 1.159

Approximately 1.2

Step-by-step explanation:

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3 years ago

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A student is trying to solve the system of two equations given below: Equation P: a + b = 6 Equation Q: 4a + 2b = 19 Which of th

Marrrta [24]

Answer:

$-4(a + b = 6)$

Step-by-step explanation:

Given

$a + b = 6$

$4a + 2b = 19$

Required

Eliminate a

Multiply the first equation by -4

$-4(a + b = 6)$

Add to the second equation

$-4(a + b = 6) + (4a + 2b = 19)$

Solve brackets

$(-4a -4b = -24) + (4a + 2b = 19)$

Open bracket

$-4a + 4a -4b + 2b = -24 + 19$

$-4b + 2b = -24 + 19$

At this point, a has been eliminated;

From the list of given options, the option that answers the question is $-4(a + b = 6)$

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4 years ago

What's the prime factorization of 78

Masja [62]

Answer:

2,3 &13

Step-by-step explanation:

78=2times39=3times13

therefore the prime factors of 78=2,3,13

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3 years ago

Suppose you have a bag of 10 coins. Nine of them are fair coins, that is, if you toss any of these 9 coins the probability of ge

garik1379 [7]

Answer:

Step-by-step explanation:

Given:

we have 10 coins

nine of them are fair coins, which means: $P(H)=\frac{1}{2}; P(T)=\frac{1}{2}$

but one coin is biased it has head on both sides which means $P(H)=\frac{1}{1}; P(T)=\frac{0}{1}=0$

expected number of heads for tossing 9 coins = $9(\frac{1}{2})=\frac{9}{2}=4.5$

The coin 10 is biased with only head on both sides

The expected number of heads tossing this coin is = 1

Therefore, the expected number of heads if all 10 coins are tossed together is = $4.5+1=5.5$

Using indicator random variables:

The number of unbiased coins = 9: n=9

$P(H)=\frac{1}{2}=0.5\\\\F(x)=nP=9\times 0.5=9.5$

One coin is biased with only head. Therefore:

$F(x)=1$

Finally, $F(x)=4.5+1=5.5$

The expected number of heads = 5.5

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4 years ago

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g(x) = x3 – x2 – 4x + 4

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g'(x) yields the slope

g''(x) yields the concavity

g'(x) = 0 provides the critical points

g''(x) = 0 provides the point of inflection

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