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3 years ago

Pls help fast<3 tysm ily

Mathematics

1 answer:

nadezda [96]3 years ago

4 0

Answer:

Step-by-step explanation:

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7. How many different ways can a class of 22 second graders line up to go to lunch?

pogonyaev

Answer:

The number of different ways are 22! or 1,124,000,727,777,607,680,000.

Step-by-step explanation:

Consider the provided information.

We need to determine the number of different ways can a class of 22 second graders line up.

We need to select 22 second graders while taking 22 at a time.

So use the permutation formula: $^{n}P_{n}$

Substitute n=22 and simplify.

$^{22}P_{22}=\frac{22!}{(22-22)!}\\22!=1,124,000,727,777,607,680,000$

Hence, the number of different ways are 22! or 1,124,000,727,777,607,680,000.

6 0

3 years ago

The exchange rate between non-fixed currencies continuously fluctuates. The following table shows the exchange rate of pounds st

liubo4ka [24]

The <em>correct answer</em> is:

B) INS 38.35

Explanation:

The day with the best exchange rate is Friday; the rate is 1:6.1715. Converting 88.65£ with this rate, we have:

88.65(6.1715) = 547.103475.

Since he is charged an 8% surcharge, he gets to keep 100%-8% = 92% = 92/100 = 0.92 of this:

0.92(547.103475) = 503.335197

The day with the worst exchange rate is Wednesday, with a rate of 1:5.7012. Converting 88.65£ at this rate,

88.65(5.7012) = 505.41138. 4

0.92(505.41138) = 464.9784696

The difference between Friday and Wednesday is:

503.335197-464.9784696 = 38.3567274, or 38.35.

7 0

3 years ago

Read 2 more answers

5 - (x + 5) > -2(x+4)

Vinil7 [7]

Answer:

5-(1+5)= -1

-2(1+4)=-10

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

Determine the degree of the polynomial:<br><br> 7m^6n^5

polet [3.4K]

9514 1404 393

Answer:

Step-by-step explanation:

The degree of the given monomial is the sum of the exponents of the variables.

m has degree 6

n has degree 5

The degree of the monomial is 6+5 = 11.

6 0

3 years ago

Use the definition of continuity to determine whether f is continuous at a. f(x) = 5x+5 a = -5 Question

Andrej [43]

ANSWER

$lim_{x \to - 5}(f(x)) = f( - 5)$

EXPLANATION

If f(x) is continuous at

$x = a$

Then,

$lim_{x \to a}(f(x)) = f(a)$

The given function is

$f(x) = 5x + 5$

$f( - 5) = 5( - 5) + 5$

$f( - 5) = - 25 + 5 = - 20$

$lim_{x \to - 5}(f(x)) = 5( - 5) + 5$

$lim_{x \to - 5}(f(x)) = - 20$

Since,

$lim_{x \to - 5}(f(x)) = f( - 5)$

The function is continuous at

$x = - 5$

4 0

3 years ago

Read 2 more answers