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2 years ago

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

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]

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3 years ago

Is the dolphin deeper than point C or point E?

Pepsi [2]

Point E is correct answer

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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.

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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>

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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

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