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olasank [31]
3 years ago
13

Please help.............

Mathematics
2 answers:
natta225 [31]3 years ago
6 0

Answer:

...........

2(x + 2) + 2x = 20

Amiraneli [1.4K]3 years ago
6 0

Answer:

x(x+2) = 20

Step-by-step explanation:

Perimeter Formulas of rectangle is: Perimeter = 2 × (a + b)

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Given that -15 is a root of x² +mx +45 = 0 find the constant m​
o-na [289]

Answer:

m = 18

Step-by-step explanation:

Given :

=> -15 is a root of the polynomial

=>  It is a zero to the solution.

Process :

Substitute -15 in place of x.

=> (-15)² + (-15)m + 45 = 0

=> 225 + 45 - 15m = 0

=> 15m = 270

=> m = 270/15

=> m = 18

5 0
3 years ago
A projectile’s motion is modeled by the function given in the table, where x represents time in seconds and f(x) represents heig
Pie

Answer: 2 seconds

Step-by-step explanation:

got it right

4 0
2 years ago
Plz help me on this quick
Studentka2010 [4]

Answer: The third one

Step-by-step explanation: We can eliminate the first one right off the bat sinc we see that -4 has two outputs. Next, the graph's equation has no slope (x=3) so the input is all the same. Thirdly, the table shows a relationship between x and y and the numbers don't have a pattern that shows more than one output or input for a number. The fourth option are simply coordinates, it doesn't particularly tell us that all the coordinates are related to each other.

7 0
2 years ago
Find the sum of <br> 10x2 – 10x – 6 and x + 6.
lana [24]
I highly recommend you use photomath for this. but i have the answer!

26-16x is the answer
6 0
3 years ago
The length of a rectangle is 2x – 3 feet, and the width is 5 feet. What is the area of the rectangle in square feet?
dimaraw [331]
The area of a rectangle is length times width or base times height

so 5 times 2x-3

if you multiply them together 5(2x-3) you would get 10x-15

there is no value of x

so the area would be 10x-15ft^2
7 0
3 years ago
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