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4 years ago

Need help with this question

Mathematics

1 answer:

enot [183]4 years ago

3 0

The ice cream will cost $4.50. Substitute 5 in for x and simplify.
2 + 0.5(5) = 4.50

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15 1/4 acres of land are to be divided into lots of at least 2/3 acres each

cupoosta [38]

(15 1/4) / (2/3) =
61/4 * 3/2 =
183/8 =
22.875.....maximum number is 22

7 0

4 years ago

3 cards are drawn from a standard deck without replacement. What is the probability that at least one of the cards drawn is a re

Rudik [331]

Answer: $\dfrac{15}{17}$

Step-by-step explanation:

Total number of cards in a deck = 52

Number of red cards = 26

Number of cards not red =

Number of ways to draw not red cards = $^{26}C_3$

Total ways to draw 3 cards = $^{52}C_3$

The probability that none of three cards are red = $\dfrac{^{26}C_3}{^{52}C_3}$

$=\dfrac{\dfrac{26!}{3!(26-3)!}}{\dfrac{52!}{3!(52-3)!}}$ [∵ $^nC_r=\dfrac{n!}{r!(n-r)!}$ ]

$=\dfrac{\dfrac{26\times25\times24\times23!}{(23)!}}{\dfrac{52\times51\times50\times49!}{3!(49)!}}=\dfrac{2}{17}$

Now , the probability that at least one of the cards drawn is a red card = 1- Probability that none cards are red

$=1-\dfrac{2}{17}=\dfrac{17-2}{17}=\dfrac{15}{17}$

Hence, the required probability = $\dfrac{15}{17}$

6 0

3 years ago

Help I keep getting 967.61 but its not one of my possible answers..

olga_2 [115]

B. Do you see how there is a pi symbol next to 308, that means you don't have to multiply by pi so 967.61 but divided by $\pi$

3 0

3 years ago

Read 2 more answers

Which of the following sets of measurements CANNOT represent the three side lengths of a triangle? A 3 cm, 3 cm, 3 cm B 3 cm. 4

umka21 [38]

Answer:

Step-by-step explanation:

As here,

3 cm + 6 cm = 9cm. = 9cm

And as we know,

According to Triangle Inequality Property, 

Measurement of any two sides of a triangle is always greater than the third side. 

But here,

Sum of two sides is same as the third side,

So,

Option D is the required answer. 

7 0

3 years ago

Rewrite log44=1 in exponential form.

kirza4 [7]

Answer:

The exponential form of $\log_{4} 4 = 1$ is $4 = 4^{1}$ .

Step-by-step explanation:

After some research in the web, we find that correct statement is:

Rewrite $\log_{4} 4 = 1$ in exponential form.

We obtain its exponential form by using the definition of logarithm:

$4^{\log_{4} 4} = 4^{1}$

$4 = 4^{1}$

6 0

3 years ago