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GREYUIT [131]
2 years ago
14

How do you solve the polynomial (4x to the third power) (-5x)

Mathematics
1 answer:
Novay_Z [31]2 years ago
8 0
Multiply the 4 and 5, and add the exponents

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GIVING AWAY 20 POINTS AND A BRAINLIEST TO FIRST PERSON WHO ANSWERS!! Juanita will work for 4 7/8 hours at her job on Saturday. i
Marina86 [1]
C is the correct answer mark person above brainliest
6 0
3 years ago
The length of a rectangle is 8 feet more than it’s worth. The area of the rectangle is 84 ft.². Find its Length and width.
Furkat [3]

Answer: 100 i think, but am not sure.

Step-by-step explanation:

The formula for area of a rectangle is A=l*w.  Since the area is 84, then you can use the A=l*w formula.  84 = x(x+8) would be the equation to solve for x.

Now, you need to put the equation in standard form.  So, x2 + 8x - 84 = 0.

Since you can't solve this quadratic using factoring, you need to complete the square.

To complete the square you need to add 84 to both sides.  Now you have x2 + 8x = 84.  Take the coefficient for the x term (8) and divide by 2.  Now square it.  That would be 42, so 16.  Now you have x2 +8x +16 = 100.

Factor x2 +8x +16, so (x+4)2 = 100

If you use the square root property, you have x+4 = 10.  Therefore, x = 6 (the short side) and 14 is the long side.

5 0
3 years ago
What's the answer to 243.875 to nearest tenth,hundredth, ten,and hundred
trapecia [35]
Tenth: 243.9
Hundredth: 243.88
Ten: 240
Hundred: 200
3 0
3 years ago
Read 2 more answers
Express the rate 50 yards per minute in feet per second. Please answer with supporting work.
DiKsa [7]
First, multiply 50*3 to get the answer in feet which is 150 ft.

Then, divide 150 ft by 60 which would be 2.5 ft per second.
3 0
3 years ago
Find the vertices and foci of the hyperbola with equation quantity x plus 5 squared divided by 36 minus the quantity of y plus 1
Sphinxa [80]

Answer:

Vertices: (1,-1), (-11, -1); Foci: (-15, -1), (5, -1)

Step-by-step explanation:

Center at (-5,-1) because of the plus 5 added to the x and the plus 1 added to the y.

a(squared)=36 which means a=6 and a=distance from center to vertices so add and subtract 6 from the x coordinate since this is a horizontal hyperbola, which is (1,-1), (-11,-1). From there you dont need to find the focus since there is only one option for this;

Vertices: (1,-1), (-11, -1); Foci: (-15, -1), (5, -1)

8 0
3 years ago
Read 2 more answers
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