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Wittaler [7]
3 years ago
5

-x^2=23 in standard form

Mathematics
1 answer:
Korvikt [17]3 years ago
5 0
Add x^2 to both sides to get

-x^2 = 23

-x^2+x^2 = 23+x^2

0x^2 = x^2 + 23

0 = x^2 + 23

x^2 + 23 = 0
You might be interested in
In a class of 23 student the girls were 7 more than the boys how many boys were in the class​
Softa [21]

Answer:

x=# of boys

x+7=# of girls

x+x+7=25

2x+7=25

2x=25-7

2x=18

x=18/2

x=9 boys

x+7=16 girls

 

If you don't understand variables use trial and error.

 

Boys     Girls

1           8

2           9

3           10

4           11

5           12

6           13

7           14

8           15

9           16   9+16=25 students

 

You could start this way...

 

Boys     Girls

12        13

11        14

10        15

9          16     16 is 7 more than 9

5 0
3 years ago
If u is a unit vector, find u · v and u · w. (assume v and w are also unit vectors.) equilateral triangle
serg [7]

solution:

we know that ,

u.v = ΙuΙ ΙvΙcosθ

here,

θ =60° (since the given triangle is equilateral triangle)

u.v = ΙuΙ ΙvΙcos60°

     = 1 x 1 x 1/2

u.v = 1/2

now, u.w = ΙuΙ ΙwΙcosθ

              = ΙuΙ x cos(60x2)

u.w = -1/2


5 0
3 years ago
I will give you brainliest !! please help!
astra-53 [7]
The answer is 1.47
hope this help you
5 0
3 years ago
What type of triangle has side lengths of 23, 24, and 24?
Hatshy [7]
B. I think....... :)
6 0
3 years ago
Read 2 more answers
Help! Geometry question!! Photo attached!
jonny [76]

The triangles are not the same size so a dilation made the original one smaller and a translation moved it to map ABC to A'B'C'.

3 0
3 years ago
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