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3 years ago

Easy 50 points for one question

Mathematics

2 answers:

aleksandr82 [10.1K]3 years ago

4 0

Answer:

Step-by-step explanation:

First, let's figure out what our two numbers are.

-7/2 = -3 1/2.

So if we have -2 + -3 1/2, that means we must first travel -2 units, which will be the first blue arrow, then add -3 1/2 more units. This would give us an answer of -5 1/2 units.

That means B is the answer, because it's the only one that ends up at -5 1/2.

densk [106]3 years ago

3 0

Answer:

I believe its C

Step-by-step explanation:

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What is 8 3/4 as a decimal

Agata [3.3K]

Here you go, The answer is 8.75

4 0

3 years ago

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Which expression best represents the product of quantities a, b, and H?

Aleks [24]

Answer:

C) abH

Step-by-step explanation:

a × b × H

= abH

The answer is option C

5 0

3 years ago

How do you do this?<br> Please help

Assoli18 [71]

Answer:

36 pencils

Step-by-step explanation:

Let h and p represent the number of highlighters and the number of pencils, respectively.

Then h + p = 45, and h = 45 - p.

Tom paid a total of $30 for these supplies, with ($2/highligher)(h) + ($0.333/pencil) adding up to that amount.

substituting 45 - p for h in 2h + 0.333p = 30, we get:

2(45 - p) + 0.333p = 30, or

90 - 2p + 0.333p = 30

Combine the constants: 60 = 2p - 0.333p, or 60 = 1.667p

Then p = 60/1.667 = 35.9928, or 36.

Tom bought 36 pencils for $12, and 45-36, or 9, highlighters for $18, for a total purchase of $30. This shows that these calculations are correct.

7 0

3 years ago

Read 2 more answers

-/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]

6 0

3 years ago

5 1/2 <br> -<br> 3 3/4<br> ______

eimsori [14]

So first you want to convert both to have the same denominator.

5 1/2 - 3 3/4

To:

5 2/4 - 3 3/4

Now, to make it easier for me, I would convert both to an improper fraction.

5 2/4 -> 22/4

3 3/4 -> 15/4

So now you can just do,

22/4 - 15/4,

which is just 7/4.

This in mixed number form is 1 3/4.

5 0

3 years ago

Read 2 more answers