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borishaifa [10]
3 years ago
9

I need help solving this equation: Solve x^2-4+1=0

Mathematics
1 answer:
Mamont248 [21]3 years ago
4 0

Answer:

X=3/2 or 1.732

Step-by-step explanation:

X^2-4+1=0

Combine like terms

-4 + 1 = -3

X^2-3=0

add 3 to both sides

X^2= 3

X= 3/2

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What is the equation, in point slope form, of the line
melamori03 [73]

Answer:

y=3/2x+11/2

Step-by-step explanation:

Hello! Sorry  I just saw this

Anyways, let's continue

first, we need to find the equation of the line with the one that is (-2,-4) and (2,2)

first, we need to find the slope

the equation for slope is y2-y1/x2-x1

so let's label the points

x1=-2

y1=-4

x2=2

y2=2

now plug it in

2-(-4)/2-(-2)=6/4=3/2

now, let's turn it into a line

the point-slope form is y-y1=m(x-x1) (m=slope)

now, plug it in

y-(-4)=3/2(x-(-2))

simplify to

y+4=3/2(x+2)

turn into y=mx+b format

y+4=3/2x+3

subtract 4 on both sides

y=3/2x-1

Now for the line that is parallel.

Parallel lines have the same slopes, so you automatically know that the new line will be y=3/2x+b

To make sure (-3,1) is a solution to the point, put 1 as y and -3 as x

1=3/2(-3)+b

1=-9/2+b

add 9/2 on both sides

b=11/2 or 5.5

now, put it into the equation

y=3/2x+11/2

Hope this helps!

5 0
3 years ago
What is the solution to the proportion 3/5=x/10
Savatey [412]
x is 6.

3 / 5 = 6 / 10

Where 10 / 5 = 2 then 2 * 3 = 6.

6 / 10 simplified by dividing both numerator and denominator by 2 will result to 3 / 5.
7 0
3 years ago
Read 2 more answers
Find the volume of each figure.<br> 10 in<br> 12 in<br> 6.9 in
cluponka [151]

Answer:

828 in^3

Step-by-step explanation:

10*12*6.9 = 69*12 = 828 in^3

4 0
3 years ago
Lynn bought 3 bags of chips for $1.86 each and 2 bottles of apple juice for $3.27 each. If the tax on the items was $0.43 what w
Otrada [13]

Answer:

for the chips she spent $5.15

and for the apple juice she spent $6.11

Step-by-step explanation:

1.86*3=5.58

5.58-0.43=5.15

3.27*2=6.54

6.54-0.43=6.11

7 0
3 years ago
Four of 12 people chose milk. what part of the group chose other drinks?
anyanavicka [17]

Answer:

8 people or 2/3 of the people choose another drink. Is that what you were asking?

8 0
2 years ago
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