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3 years ago

Evaluate the expression xy-3x; when x=4 and y=5. Pls provide explanation. Will choose brainliest.

Mathematics

1 answer:

Iteru [2.4K]3 years ago

7 0

4*5-3*4

20-12

Just plug in the numbers and solve. Remember that you multiply before you subtract.

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If you borrow 421$ for nine years at an interest rate of 4% how much will you pay

satela [25.4K]

Interest = (Principal X rate X time)/100
Interest =421*9*4/100
Interest = 151.56 dollars

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3 years ago

One of the events at the circus starred Gabriella the Human Cannonball. On Saturday she performed in four shows. Shot from a can

34kurt

Answer: 59.49 meters
In this case, Gabriella flew 4 times with different distance. To answer this question you just need to add all the distance, The calculation would be:

Total distance = distance 1 + distance 2 + distance 3 + distance 4
Total distance = 8.05 meters+ 17.71 meters + 14.38 meters + 19.35 meters= 59.49 meters.

3 0

3 years ago

For which rational expression is 8 an excluded value ? check all that apply

denis23 [38]

<u>Answer:</u>

The correct answer options are C. $\frac{x^2+5}{x-8}$ and D. $\frac{x^2-x-56}{x^2-64}$ .

<u>Step-by-step explanation:</u>

The values which make the denominator equal to zero are called the excluded values.

Here, we can substitute 8 for x and check if it makes the denominator 0.

$\frac{x-8}{x+8} = \frac{8-8}{8+8} =\frac{0}{16} =0$

$\frac{x-2}{x^2-4} = \frac{8-2}{8^2-4} =\frac{6}{60} =\frac{1}{10}$

$\frac{x^2+5}{x-8} = \frac{8^2+5}{8-8} =\frac{69}{0}$

$\frac{x^2-x-56}{x^2-64} = \frac{8^2-8-56}{8^2-64} = \frac{0}{0} =0$

$\frac{8x^2-2}{x^2-16} = \frac{8(8)^2-2}{8^2-16} =\frac{510}{48}$

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3 years ago

The probability that a given urine sample analyzed in a pathology lab contains protein is 0.73 (event A). The probability that t

Sholpan [36]

$Event\ A\ and\ event\ B\ are\ independent\\\\ \ \Leftrightarrow\ \ \ \ P(A\ \cap\ B)=P(A)\ \cdot\ P(B)\\---------------------\\\\P(A)=0.78\ \ \ and\ \ \ P(B)=0.58\ \ \ and\ \ \ P(A\ \cap\ B)=0.58\\\\P(A)\cdot P(B)=0.78\cdot0.58\ \neq \ 0.58\\\\\Rightarrow\ \ \ Event\ A\ and\ event\ B\ are\ dependent\ \ \ \Rightarrow\ \ \ Ans.\ (?)$

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2 years ago

Tony gets paid $5 per hour to babysit his cousin. This weekend, he babysat on

Helen [10]

Answer:

5 hours

Step-by-step explanation:

give me brain list

8 0

3 years ago

Read 2 more answers