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Alchen [17]
3 years ago
6

0.2 (20x + 10) = -42

Mathematics
1 answer:
Finger [1]3 years ago
4 0

Answer:

x = -11

Step-by-step explanation:

0.2(20x + 10) = -42

4x + 2 = -42                    Distribute 0.2 to the numbers in the paranthesis

4x = -44                          Add 2 to both sides

x = -11                              Divide 4 from both sides

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9. If f(x)=-2x^2+4x-6, <br> then f(2)=
Romashka-Z-Leto [24]

Answer:

f(2) = -6

General Formulas and Concepts:

Order of Operations: BPEMDAS

Substitution and Evaluation

Step-by-step explanation:

<u>Step 1: Define</u>

f(x) = -2x² + 4x - 6

f(2) is x = 2

<u>Step 2: Solve</u>

  1. Substitute:                          f(2) = -2(2)² + 4(2) - 6
  2. Exponents:                         f(2) = -2(4) + 4(2) - 6
  3. Multiply:                              f(2) = -8 + 8 - 6
  4. Add:                                    f(2) = -6
3 0
3 years ago
I Need The Answer Plz!!
Brrunno [24]

Answer:

BCA

Step-by-step explanation:

All angles go to angles that have one curve to the angle that has the most curves, but I'm really guessing.

5 0
3 years ago
Read 2 more answers
Is the following shape a square? How do you know
swat32
Yes, they all have 4 corners.
3 0
2 years ago
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After dinner 2/3 of a pan of lasagna is left. The hole pan of Lasagna was originally cut in into pieces that were each 1/6 of th
Paraphin [41]

Answer:

An equation represents the number of pieces of lasagna that are left after dinner is \frac{1}{6}x=\frac{2}{3}

Step-by-step explanation:

Each piece of Lasagna is 1/6 of the pan

Let x be the number of pieces left

So, x pieces is \frac{1}{6}x of the pan

We are given that After dinner 2/3 of a pan of lasagna is left.

So, \frac{1}{6}x=\frac{2}{3}

x=\frac{2}{3} \times 6

x=4

So, Number of pieces left = 4

Hence An equation represents the number of pieces of lasagna that are left after dinner is \frac{1}{6}x=\frac{2}{3}

8 0
3 years ago
The tape diagram models the lengths of two snowboarding trails. The expert trail is 750 meters longer than the beginner trail. H
Kay [80]

Answer:

In a tape diagram, each of the lengths represents a fixed quantity of something.

Let's suppose that each one of these lengths represents a distance d.

We also know that the expert trail is 750 meters longer than the beginner one.

And in the tape diagram, the expert trail has 3 more lengths than the beginner trail, then we must have that the difference in distance must be equivalent with the difference in lengths.

750m = 3*d

d = 750m/3 = 250m

Then each length in the tape diagram represents 250m

With this we can find the length of each trail.

The beginner trail has 1 length, then it is 1*250m = 250 meters long.

The expert trail has 4 lengths, then it is 4*250m = 1000 meters long.

5 0
3 years ago
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