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grigory [225]
3 years ago
7

align="absmiddle" class="latex-formula">
paso a paso
Mathematics
2 answers:
Virty [35]3 years ago
6 0

Step-by-step explanation:

-a-7a/8

-8a-7a/8

-15a/8

Hope it helps you

Ede4ka [16]3 years ago
5 0

Answer:

Step-by-step explanation:

WE have to find the least common denominator and it is 8

-a =\frac{-a*8}{1*8}=\frac{-8a}{8}\\\\-a -\frac{7}{8}a=-\frac{8}{8}a-\frac{7}{8}a\\\\=\frac{-8a-7a}{8}\\\\=\frac{-15a}{8}\\\\

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Please help just divide
Tju [1.3M]

Answer:

the answer is Z

Step-by-step explanation:

I just looked it up

5 0
3 years ago
If a(x) = 3x + 1 and b(x)= squareroot x-4, what is the domain of (b*a)(x)?
oksano4ka [1.4K]

\boxed{ \ x \geq 1 \ } or can be written as \boxed{ \ [1, \infty) \ }

<h3>Further explanation</h3>

This is a question about the composition of functions and how to get a domain function.

Given \boxed{ \ a(x) = 3x + 1 \ } and \boxed{ \ b(x) = \sqrt{x - 4} \ }.

We will form (b o a)(x) and then determine the domain.

<u>Step-1</u>

\boxed{ \ (b \circ a)(x) = b(a(x)) \ }

Replace each appearance of x in b(x) with \boxed{ \ a(x) = 3x + 1 \ }.

\boxed{ \ (b \circ a)(x) = \sqrt{(3x + 1) - 4} \ }

Thus, \boxed{ \ (b \circ a)(x) = \sqrt{3x - 3} \ }

<u>Step-2</u>

To be defined, the value under the radical sign must not be negative. Therefore, the domain of (b \circ a)(x) = \sqrt{3x - 3} are processed as follows.

\boxed{ \ 3x - 3 \geq 0 \ }

Both sides added by 3.

\boxed{ \ 3x \geq 3 \ }

Both sides divided by 3.

\boxed{ \ x\geq 1 \ }

Thus, the domain of (b \circ a)(x) = \sqrt{3x - 3} is \boxed{ \ x \geq 1 \ } or can be written as \boxed{ \ [1, \infty) \ }

<h3>Learn more</h3>
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Keywords: composition of function, if a(x) = 3x + 1, and, b(x) = √(x-4), what is the domain of, (b o a)(x), b(a(x)), defined, the value, under the radical sign, must not be negative,

4 0
3 years ago
Read 2 more answers
Solve the equation 1.2x = 5.16 for x.
Kobotan [32]

1.2x = 5.16

x = 5.16/1.2

x = 4.3

5 0
3 years ago
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What is the value of 5 + -2​
Sidana [21]

Answer:

3

Step-by-step explanation:

5 is greater than 2 and two is negative so the answer is positive

8 0
2 years ago
It is worked out that if 4 ladles full of soup are given to each person, 120 people can be fed. The customers have complained in
alina1380 [7]

Answer:

80\ people

Step-by-step explanation:

Per person available ladles full of soup=4

Total number of persons=120

Hence total number of ladles full of soup=120\times 4=480

Now per person available ladles full of soup=6

Total number of persons that can be fed

=\frac{total\ availability}{per\ person\ requirements}\\\\=\frac{480}{6}\\\\=80

6 0
3 years ago
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