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lapo4ka [179]
3 years ago
9

What’s (X-4) (x+5) I don’t get it someone help

Mathematics
2 answers:
Marianna [84]3 years ago
8 0
Heya! I am going to show you something step by step, I hope this helps you hun.

<span>=<span><span>(<span>x+<span>−4</span></span>)</span><span>(<span>x+5</span>)</span></span></span><span>

=<span><span><span><span><span>(x)</span><span>(x)</span></span>+<span><span>(x)</span><span>(5)</span></span></span>+<span><span>(<span>−4</span>)</span><span>(x)</span></span></span>+<span><span>(<span>−4</span>)</span><span>(5)</span></span></span></span><span>

=<span><span><span><span>x2</span>+<span>5x</span></span>−<span>4x</span></span>−20</span></span><span>

=<span><span><span>x2</span>+x</span>−<span>20

(The 2 is to the second power between.) 

Please message me for further help! - Hannah</span></span></span>
Flauer [41]3 years ago
5 0
You have to find out what x is because x is an imaginary number
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d1i1m1o1n [39]

Answer:

radius=7.5, diameter=13

Step-by-step explanation:

diameter is the length across a circle through the middle, and it is given in the picture. radius is half of the diameter

8 0
2 years ago
The length of each side of a square was decreased by 2 inches, so the perimeter is now 52 inches. What was the original length o
telo118 [61]
60 inches because the square has 4 sides so 4x2 is 8 and 52+8 is 60.
3 0
3 years ago
4000
Airida [17]

Answer:

$1000 ; 500 ; 1000 ; y = 500x + 1000

Step-by-step explanation:

From the graph, the initial deposit which started the savings account is $1000 ; this is the value on the y - intercept, the value in the account at time or period = 0.

The slope :

x1 = 0 ; y1 = 1000

x2 = 6 ; y2 = 4000

Slope = Rise / Run

Rise = y2 - y1 = 4000 - 1000 = 3000

Run = x2 - x1 = 6 - 0 = 6

Hence,

Slope = 3000 / 6

Slope = 500

y - intercept = 1000 (from. Graph)

Equation in slope intercept form:

General form : y = mx + c

m = slope ; c = intercept

Equation is written as ;

y = 500x + 1000

5 0
3 years ago
Mr. and Mrs. Nelson are going to build a new home. They need to have working drawings of their house plans created by a design f
matrenka [14]

Answer:

Options 2), 4), and 5) are correct

Step-by-step explanation:

<u>Rock the House Digital Designs</u>

  • Cost = $(500 + 50h)

<u>Elegant Home Architects</u>

  • Cost = $(75h)

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

<u>Answer options:</u>

1)The expression 50h represents the total charge for Rock the House Digital Designs.

  • Incorrect. Additional $500 charged.

2)The expression 75h represents the total charge for Elegance Home Architects.

  • Correct

3)The expression 500 + 75h + 50h represents the total amount the Nelsons will spend working drawings of their new house plans.

  • Incorrect. They will choose one of the options.

4)If the Nelsons hire the design firm for 15 hours, then Elegance Home Architects will be cheaper.

  • Correct. It will cost 15*75 = $1125. Alternative costs 500 + 50*15 = $1250

5)If the Nelsons hire the design firm for 25 hours, then Rock the House Digital Designs will be cheaper.

  • Correct. It will cost 500+25*50 = $1750. Alternative cost is 25*75 = $1875
8 0
3 years ago
Can anyone help out im a little confused.
Shtirlitz [24]

Answer:

4 {q}^{3}  \times 9 {q}^{4}

36 {q}^{7}

7 0
3 years ago
Read 2 more answers
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