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Novosadov [1.4K]
3 years ago
7

Factorise x^2 +7x+3​

Mathematics
1 answer:
aleksandrvk [35]3 years ago
3 0
(x+0.4586187349) (x+6.541381265)

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A rectangle has a perimeter of (20x+12y). If one side of the rectangle is (3x-4y), write the expression for the other side
Nady [450]

Answer:

(7x + 10y)

Step-by-step explanation:

To find this add (3x - 4y) to itself to calculate to lengths of the shorter sides.

(3x - 4y) + (3x - 4y) = 6x - 8y

Subtract this from (20x + 12y)

(20x + 12y) - (6x - 8y) = 14x + 20y     Divide this by two to get the length of one side

14x + 20y / 2 = 7x + 10y

If this answer is correct, please make me Brainliest!

3 0
3 years ago
Mrs. Write makes cookies for the school bake sale. She uses the equation y=0.50x to determine the cost, y, for x cookies. Which
Anni [7]

Answer:D

Step-by-step explanation: just trust me on this one i have a 103% in 9th grade math

3 0
3 years ago
The table shows how an elevator 500 feet above the ground is descending at a steady rate.
lapo4ka [179]

Answer:

h(t) = -5t + 500

Step-by-step explanation:

At time zero, the elevator is at 500 ft.

At time 5 seconds, the elevator is at 475 ft.

The difference in height is -25 ft.

The elevator traveled -25 ft (25 ft down) in 5 seconds, so it travels at a speed of 5 ft per second. Since it is traveling down, its speed is -5 ft/sec.

For each second of travel, it loses 5 ft of height.

h(t) = -5t + 500

7 0
2 years ago
What’s the side of 200cm in a square
Artemon [7]

To find the length of a side of a square fins the square root of the area.

Area = 200 cm^2

Side = √200

Side = 10√2 (Exact length)

or 14.142 cm's ( round the decimal answer as needed.)

3 0
3 years ago
Please answer asap. there are two pics :)
Thepotemich [5.8K]

Answer:

\boxed{\sf A. \ 0.34}

Step-by-step explanation:

The first triangle is a right triangle and it has one acute angle of 70 degrees.

We can approximate \sf \frac{WY}{WX} from right triangle 1.

The side adjacent to 70 degrees is WY. The side or hypotenuse is WX.

The side adjacent to 70 degrees in right triangle 1 is 3.4. The side or hypotenuse is 10.

\sf \frac{3.4}{10} =0.34

8 0
3 years ago
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