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umka21 [38]
3 years ago
13

HURRRRRRYYYYYYY 1 QUESTION EXPERTS/ACE HELP QUICK!!!!!

Mathematics
1 answer:
Pepsi [2]3 years ago
5 0
The last answer is correct x^5/6 + 2x^7/3
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A carpenter can do a job in two hours. His assistant can do the same job in three hours. How long would it take them to do the j
OlgaM077 [116]

The carpenter makes 1/4 of the job per hour.

The assistant makes 1/6 of the job per hour.

When they work together, they make 1/4 + 1/6 = 6/24 + 4/24 = 10/24 = 5/12 of the job each hour.

Thus, it will take 12/5 = 2 2/5 hours = 2 hours and 24 minuets for them to finish the job working together.

5 0
3 years ago
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What is the vertex of the function f(x) = x2 + 3x + ?
guapka [62]

The vertex of the function is at x = -3/2. We cannot find the y value with an incomplete equation.


To find the x value of a vertex, we use the equation -b/2a, in which a is equal to the coefficient of x^2 (in this case 1) and b is equal to the coefficient of x (in this case 3).


-b/2a

-3/2(1)

-3/2


This gives us that value. To find the y value, you would plug this into the equation. Since this equation is not complete, you cannot do that yet.

5 0
3 years ago
How do you find the missing side??
guapka [62]

Answer:

\boxed{\ell = 12}.

Step-by-step explanation:

Let \ell denote the length of the missing side. Since \triangle ABC and \triangle AXY share one vertex and \overline{XY}\parallel \overline{BC}, these triangles are similar. This means that:

\dfrac{AX}{AB} = \dfrac{AY}{AC} \iff \dfrac{\ell}{18+\ell} = \dfrac{14}{14+21} \iff\dfrac{\ell}{18+\ell} = \dfrac{14}{35}.

We now multiply both sides by 18+\ell and solve the equation:

\dfrac{\ell}{18+\ell} = \dfrac{14}{35} \iff \ell = \dfrac{36}{5} + \dfrac{14}{35}\ell \iff \ell \left(1-\dfrac{14}{35}\right) = \dfrac{36}{5} \iff \dfrac{3}{5}\ell = \dfrac{36}{5}.

So we now simply get:

\boxed{\ell = \dfrac{36}{3} = 12}.

4 0
3 years ago
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Lily took out a 5-year loan from the bank for $31,000 to purchase a new car. At the end of the loan, she had paid a total of $37
Sidana [21]

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6 0
3 years ago
Rename 5/6 and 14/15 using the least common denominator.
Vedmedyk [2.9K]

Answer:

25/30 and 28/30

Step-by-step explanation:

1. To find the least common denominator, you need to find the least common multiple of the two denominators which are 6 and 15. Prime factorization of these numbers gives:

6 = 2 x 3

15 = 5 x 3

A number that would evenly divide both 6 and 15 must contain 2 x 3 x 5 which is 30.

Thus 30 is the least common denominator.

2. Now we need to somehow change both fractions to make them have a denominator of 30. To do this we can multiply by fractions with same numerator and denominator since that would be like multiplying by 1.

So, 5/6 x 5/5 = 25/30

And 14/15 x 2/2 = 28/30

8 0
3 years ago
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