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sveticcg [70]
3 years ago
6

May someone help me on this please

Mathematics
1 answer:
antoniya [11.8K]3 years ago
3 0
So x^2 -6x = ? for x= -14

(-14)^2 -6*(-14) = 196 + 84 = 280 

hope this will help you 
You might be interested in
The first number of three consecutive even integers equals the sum of the second and third. Find the three numbers.
stiv31 [10]

Answer:

x=2x+6 is the equation that to solve for the smallest.

The three numbers are -6, -4 , and -2.

Step-by-step explanation:

Let x be the smallest of three consecutive even integers.

The next even integer would then have to be x+2 (because x+1 is odd if x is even).

The third one in this sequence would have to be x+4 (because x+3 is odd if x is even).

We are given the first of these numbers equals the sum of the second and third.

So we have x=(x+2)+(x+4).

Combine like terms on right hand side:

x=x+x+2+4

Simplify the combining:

x=2x+6

Subtract 2x on both sides:

x-2x=6

Simplify left hand side:

-x=6

Multiply both sides by -1:

x=-6

If x=-6,  then the three mentioned numbers are:

x=-6

x+2=-6+2=-4

x+4=-6+4=-2

The three numbers are -6, -4 , and -2.

6 0
3 years ago
HELP ASAPP
bagirrra123 [75]

Answer:

42 ft

Step-by-step explanation:

 

6 0
2 years ago
Frankie wants to build a path from one corner of his yard to the opposite corner. His yard measures 20 ft. x 32 ft. What will be
Roman55 [17]

Answer:

≈37.7 feet

Step-by-step explanation:

I'm assuming he goes diagonally.

We can form a triangle with legs 20 feet and 32 feet.

Using the Pythagorean Theorem, we get:

20^2+32^2=c^2\\400+1024=c^2\\1424=c^2\\c^2=1424\\c=\sqrt{1424}\\

c≈37.7

8 0
3 years ago
Read 2 more answers
The original price of a skateboard was $63.99. The owner of the store marked it 15% off. Calculate the discount and sale price.
aleksandr82 [10.1K]
$63.99 *0.85=$54.40 ($54.3915)<span> rounded = Sale Price
$63.99-54.40= </span> $9.60 $9.59 rounded = Discount
7 0
3 years ago
Set up the integral that uses the method of disks/washers to find the volume V of the solid obtained by rotating the region boun
Blababa [14]

Answer:

a)\: \frac{3}{2} \pi

b) \:\frac{47}{5} \pi

Step-by-step explanation:

y=3\sqrt x,\:\:y=3,\:\:x=0

a) about the line y = 3

3\sqrt x=3  ⇒  x = 1  is the intersection point

So,

V=\int\limits^1_0\pi(3-3\sqrt x)^2\:dx=\pi\int\limits^1_0(9-18\sqrt x+9x)\:dx=\\\\=\pi(9x-12x^{3/2}+9/2x^2)|^1_0=\pi(9-12+9/2)=\frac{3}{2} \pi

b)  about the line x = 5

y=3\sqrt x  ⇒  x=y^2/9

So,

V = \int\limits^3_0\pi([5-0]^2-[5-y^2/9]^2)\:dy=\pi\int\limits^3_0(25-25+10y^2/9-y^4/81)\:dy=\\\\=\pi(10y^3/27-y^5/405)|^3_0=\pi(10-3/5)=\frac{47}{5} \pi

8 0
4 years ago
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