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vampirchik [111]
3 years ago
13

What is the solution set of the x^2+x-2>o

Mathematics
1 answer:
VMariaS [17]3 years ago
6 0

Answer:

x

2

−

x

−

2

=

0

Factor  

x

2

−

x

−

2

using the AC method.

Tap for more steps...

(

x

−

2

)

(

x

+

1

)

=

0

Set  

x

−

2

equal to  

0

and solve for  

x

.

Tap for more steps...

x

=

2

Set  

x

+

1

equal to  

0

and solve for  

x

.

Tap for more steps...

x

=

−

1




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Help show work pleaeee
Inga [223]

SA = 2\pi rh+2\pir^2

1. Find the radius.

R = 1/2D

6 x 1/2 = 3

R = 3

2. Plug them in.

SA 2(3.14)(3)(7) + 2(3.14)(3^2)

3. Solve

3 x 7 = 21

21 x 3.14 = 65.94

65.94 x 2 = 131. 88

3^2 = 9

9 x 3.14 = 28.26

28.26 x 2 = 56.52

4. Add them together.

131.88 + 56.52 = 188.4

Answer: 188.4 square millimeters

7 0
3 years ago
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F
viktelen [127]

Answer:

what is this.

Please write in a proper way.

5 0
3 years ago
A stadium floor that is in the shape of a circle has a diameter with a length of 50 yards. What is the area of the circle on the
barxatty [35]

Step-by-step explanation:

as diameter=50 yards

radius (r)=50/2=25 yards

ar of circle = π r r

π=22/7

22÷7×25×25

1974.285714

3 0
3 years ago
Read 2 more answers
Which one of the following is considered a quantitative variable?
tatyana61 [14]
Okay so here's the definition of quantitative just in case you ever need it :) Categorical. Categorical variables take on values that are names or labels. The color of a ball (e.g., red, green, blue) or the breed of a dog (e.g., collie, shepherd, terrier) would be examples of categorical variables. And the answer would be A the color of your car because it talks about in the definition of the color of a ball so A would be the correct answer! Please mark brainliest :)
7 0
3 years ago
Find the sum of the counting numbers from 1 to 25 inclusive. In other words, if S = 1 + 2 + 3 + ... + 24 + 25, find the value of
Anastaziya [24]

Answer:

325

Step-by-step explanation:

You must have heard about Arithmetic Progressions (AP)

Arithmetic progressions are a series of numbers such that every successive number is the sum of a constant number and the previous number.

Our very own counting numbers form AP

For example :-

2 = 1 + <u>1</u>

3 = 2 + <u>1</u>

4 = 3 + <u>1</u>

The number in bold (1) is that constant number which is added to a number to form its successive number.

To find the sum of series forming AP, we use the formula :-

sum =  \frac{n}{2} \{ a  + a  _{n}  \}

here,

  • n is the number of terms
  • a is the first number of the series
  • an is the last number of the series

So we'll use all this information to find the sum of continuous numbers from 1 to 25 where 1 is the first term(a) and 25 is the last(an).

and n is 25

S  =   \frac{25}{2}\{ 1  +25\}

=  \frac{25 \times 26}{2}

= 25  \times 13

= 325

So, the value of S comes out to be 325.

8 0
3 years ago
Read 2 more answers
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