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Anastaziya [24]
3 years ago
12

How do I solve this? -3x(x+14)

Mathematics
2 answers:
EastWind [94]3 years ago
3 0

Answer:

-3x^2-42x

Step-by-step explanation:

<em>Distributive property:</em>

<em>   ↓</em>

<em>A(B+C)=AB+AC</em>

<em />

<em>A=-3x, B=x, and C=14</em>

<em />

<em>-3xx+(-3x)*14</em>

<em />

<em>(-b)+=-b</em>

<em />

<em>-3xx-3*14x</em>

<em />

<em>Simplify to find the answer.</em>

<em />

<em>-3xx-3*14x=-3x^2-42x</em>

<em />

<em>-3x^2-42x, which is our answer.</em>

Brrunno [24]3 years ago
3 0
You first distribute the -3x to x so u have -3x^2 because you multiplied them. Then you do -3x times 14 which is -42. So the answer is -3x^2-42
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I need some help please
muminat
Answer: 113.0 ft (bottom right corner)

=====================================

Explanation:

The triangle has a horizontal leg of 220 ft and a vertical leg of x ft. We'll use the tangent rule to connect the opposite side and adjacent side

opposite side = x
adjacent side = 220
this is with the reference angle shown in the diagram

So,
tan(angle) = opposite/adjacent
tan(26) = x/220
220*tan(26) = x
x = 220*tan(26)
x = 107.301169 ... see note below
x = 107.3

Now that we know the approximate value of x, we add on 5.7 to get
x+5.7 = 107.3+5.7 = 113.0

note: make sure your calculator is in degree mode. The value is approximate to 6 decimal places

3 0
3 years ago
Rama is stringing beads whose lengths are each 0.19 inches. How can rounding be used to estimate the length of a row of 9 beads?
Mice21 [21]

Since the beads are about 0.20 inches, the length of a row of 9 beads will be approximately 9 × 0.20 = 1.80 inches.

Step-by-step explanation:

According to given statement;

Length of individual stringing beads = 0.19 inches

Rounding off = 0.2 inches

Length of row of 9 beads = 9* rounded off length of individual beads

Length of row of 9 beads = 9*0.2

Length of row of 9 beads = 1.80 inches

Since the beads are about 0.20 inches, the length of a row of 9 beads will be approximately 9 × 0.20 = 1.80 inches.

Keywords: multiplication

Learn more about multiplication at:

  • brainly.com/question/4767370
  • brainly.com/question/4770453

#LearnwithBrainly

6 0
3 years ago
Determain the missing value in the table,I’ll give Brainlyest answer,please.
crimeas [40]

Answer:

15

Step-by-step explanation:

2 * 3 = 6

5 * 3 = 15

7 * 3 = 21

9 * 3 = 27

7 0
3 years ago
Determine if the function is one-to-one. A parabola is shown facing up with a vertex of 2.5, -6
Elina [12.6K]

<u>ANSWER</u>

It is not one-to-one function

<u>EXPLANATION</u>

A one-to-one function must pass the horizontal line test.

The graph described in the question looks like the one in the attachment.

A horizontal line drawn in red cuts the graph at more than one point.


Therefore the parabola shown facing up with a vertex (2.5, -6) is not a one-to-one function.

3 0
4 years ago
A set of golf balls sells for $20. This week it is on sale for 30% off of the original price. What is the sale price of the set?
tankabanditka [31]

Answer:

$14

Step-by-step explanation:

20 x .7 = 14

8 0
3 years ago
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