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Lelu [443]
2 years ago
6

Solve the equation. a+3(a−1)=3(2+1) Enter the correct answer in the box. a=

Mathematics
1 answer:
Dmitry [639]2 years ago
5 0

Answer:

I feel like something is wrong with the equation but the answer is a = 3

Step-by-step explanation:

a + 3a - 3 = 6 + 3 = 9

--> 4a = 12 --> a = 3

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-/2 points
Rom4ik [11]

Answer:

Part 1) The domain of the quadratic function is the interval  (-∞,∞)

Part 2) The range is the interval  (-∞,1]

Step-by-step explanation:

we have

f(x)=-x^2+14x-48

This is a quadratic equation (vertical parabola) open downward (the leading coefficient is negative)

step 1

Find the domain

The domain of a function is the set of all possible values of x

The domain of the quadratic function is the interval

(-∞,∞)

All real numbers

step 2

Find the range

The range of a function is the complete set of all possible resulting values of y, after we have substituted the domain.

we have a vertical parabola open downward

The vertex is a maximum

Let

(h,k) the vertex of the parabola

so

The range is the interval

(-∞,k]

Find the vertex

f(x)=-x^2+14x-48

Factor -1 the leading coefficient

f(x)=-(x^2-14x)-48

Complete the square

f(x)=-(x^2-14x+49)-48+49

f(x)=-(x^2-14x+49)+1

Rewrite as perfect squares

f(x)=-(x-7)^2+1

The vertex is the point (7,1)

therefore

The range is the interval

(-∞,1]

6 0
3 years ago
Is the dolphin deeper than point C or point E?​
Pepsi [2]
Point E is correct answer
7 0
3 years ago
A country's population in 1990 was 132 million. In 1998 it was 137 million. Estimate the population in 2003 using the exponentia
Likurg_2 [28]
140 million.I guess.
8 0
3 years ago
20 divided by 2 (5+5)=
AveGali [126]
<span>The correct answer is 1.

Explanation:
The way this is written, everything after the words "divided by" would be calculated first; it is written as though this is a grouping, such as 20/(2*(5+5)). We would evaluate the innermost parentheses first; 5+5=10. Then this gives us 2*10=20 in our parentheses. 20/20 = 1.</span>
6 0
3 years ago
an apple orchard sells apples in a bag of 10 the orchard sold a total of 2043 apples a day how many bags of apples was this
Galina-37 [17]
The answer is 204.3 hope it helps buddy

5 0
3 years ago
Read 2 more answers
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