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ludmilkaskok [199]
3 years ago
14

(x + y + 3)(x + y - 4)

Mathematics
1 answer:
ohaa [14]3 years ago
5 0

Answer:

(X+Y+3)(X+Y-4)

= X^2+XY-4X+XY+Y^2_4Y+3X+3Y-12

=X^2+Y^2+2XY-X-Y-12

Step-by-step explanation:

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The shortest side of a polygon of area 196 sq. in. is 4 in. long. Find the area of a similar polygon whose shortest side is 8 in
fenix001 [56]
The correct answer is:  " 784 in² " . 
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                  {or; write as:  " 784 sq. inches " .}.
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      When the side is doubled (in this case, 4 is doubled; 4 * 2 = 8} ; the area is increased by 2² times; that is, by 4 times;  so, the area is:
    (196 sq. in)  * 4 =   784 sq inches .
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7 0
3 years ago
Read 2 more answers
Select the correct solution set.<br> X+17 5 -3<br> {XIX2-20)<br> {XIXS-20)<br> [xl xs 14
gtnhenbr [62]

Answer:

x≤-20

Step-by-step explanation:

x+ 17≤-3

Subtract 17 from each side

x+ 17 -17≤-3-17

x≤-20

3 0
4 years ago
Write 3/1000 as a percent and a decimal - note moving the decimal rule
7nadin3 [17]

Answer:

Step-by-step explanation:

as a % = 3/1000 × 100 = 3/10 = 0.3 %

as a decimal = 3/1000 = 0.003

hope this hepls

plz mark it as brainliest!!!!!!!!!

4 0
3 years ago
Read 2 more answers
Are 6 exponent 3 and -x exponent 3 alike
amid [387]

Answer:

.

Step-by-step explanation:

6^3 = 216

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5 0
3 years ago
I need help with this and I don’t understand it
DochEvi [55]

Lets break it down:

The bottom right picture shows an approximation of what 1 wingspan length is, and the goal is to <u>estimate </u>lengths.

A. 1 wing is approx. 7 meters. To find the wingspan of the plane just do 7 meters multiplied by 2 = 14 meters (approx wingspan). Now we convert (remember, to the nearest foot!)

14 meters = 45.93 ft

Round it to the nearest foot = 46 ft is your approx. wingspan.

B. The height. This is one is a little tricky! Lets try to use what we know:

1 wing is approx. 7 meters. Since these are approximations, lets say half of one wing is <u>roughly</u> the size of the height of the plane. Since these are approximations I'd say 4 meters.

4 meters = 13 ft (rounded).

<em>I checked online for the specs of the Lysander and the exact height is 14 ft 6 in and wingspan is 50 ft. </em>This means our approximations were correct!

C. The length would be 10 ft + 7 meters

10 ft = 3 meters (rounded)

3 meters + 7 meters = 10 meters

<em>(converting to meters then to ft at the end because it's less messy)</em>

10 meters = 33 ft (rouned)

length of the Lysander is approx. 33 ft!

(the real length is 30 ft 6 in)

This means our approximations were correct once more.

Hopefully this helped you and made your night/day easier.



5 0
3 years ago
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