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nikklg [1K]
3 years ago
12

What is an equivalent expression for 1.5(3x + 4) + 0.25(6x + 8)? vx +

Mathematics
1 answer:
Basile [38]3 years ago
4 0

Answer:

6x + 8

Step-by-step explanation:

1.5(3x + 4) + 0.25(6x + 8)  

Distribute

4.5x + 6 + 1.5x + 2

Now, combine like terms

6x + 8

Hope this helps!

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Select the true statement about Triangle ABC.
viktelen [127]

Answer:b

Step-by-step explanation:

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3 years ago
A recent kellogg survey shows that approximately 34% of americans eat breakfast. suppose alex takes a random sample of four amer
vlabodo [156]

This kind of experiments are ruled by Bernoulli's formula. If you have probability p of "success", and you want k successes in n trials, the probability is


\binom{n}{k}p^k(1-p)^{n-k}


It's easier to compute the first probability by difference: instead of computing the probability of the event "at least one of the surveyed eats breakfast", let's compute the probability of its contrary: none of them eats breakfast. So, we want 0 successes in 4 trials, with probability of success 0.34. The formula yields


\binom{4}{0} 0.34^0 0.64^4 = 0.64^4 \approx 0.17 = 17\%


Since the contrary has probability 17%, our event "at least one of the surveyed eats breakfast" has probability 83%.


As for the second question, the event "at least three of the surveyed eats breakfast" is the union of the events "exactly three of the surveyed eats breakfast" and "exactly four of the surveyed eats breakfast". So, we just need to sum their probabilities:


\binom{4}{3} 0.34^3 0.64^1 +\binom{4}{4} 0.34^4 0.64^0 = 4\cdot  0.34^3 0.64 + 0.34^4 \approx 0.11 = 11\%

3 0
3 years ago
A recipe called for using 2 6/8 cups of flour before baking the another 3 1/2 cups after baking what is the total amount for flo
Pepsi [2]

Answer:

Step-by-step explanation:

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3 0
3 years ago
Plot a point on the line with the Y- coordinate y=4
Dima020 [189]

ANSWER :

(1, 4)

EXPLANATION :

From the problem, we have the equation of the line :

2x-2=0

Which can be reduced as :

\begin{gathered} 2x-2=0 \\ 2x=2 \\ x=\frac{2}{2} \\  \\ x=1 \end{gathered}

Then the graph of the line will be :

We need to plot a point that is on the line with a y-coordinate of 4.

That will be :

The point on the line will be (1, 4)

3 0
2 years ago
Bryson is laying down sod in his yard to grow a new lawn .Each peice of sod is a 1-foot by 1-foot square .How many prices of sod
Marina86 [1]
30 feet by 14 feet just means 30x14 which is equal to 420 square feet if each piece is 1x1 then he will need 420 pieces of sod
3 0
4 years ago
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