All categories

4 years ago

If x^2=4 then can x only be equal to 2? (Geometry) true or false?

Mathematics

2 answers:

TEA [102]4 years ago

6 0

true because two to the second power is two times two and we know two times two = 4

nata0808 [166]4 years ago

4 0

This is false!

X^2 = 4
X can equal to -2 or 2

(2)^2 = 4
(-2)^2 = 4

You might be interested in

The velocity function for a particle is v(t) = 2t - 5 ft/sec. Find the displacement for the particle from t = 0 to t = 4 sec. (G

deff fn [24]

Answer: The displacement is -4 ft.

Step-by-step explanation:

The velocity is:

v(t) = 2t - 5ft/s

If we want to find the displacement between t = 0s and t = 4s, we need to find the difference between the position at t = 0s and at t= 4s

The equation for the position is obtained by integrating over time:

P(t) = (2t^2)/2 - 5*t + c

where c is the initial position, then we have:

P(t) = t^2 - 5t

P(4) - P(0) = 4*4 - 5*4 - 0 = 16 - 20 = -4

The total displacement is -4 feet

7 0

3 years ago

Read 2 more answers

Need help with problem 40,41 and 42! 15 points

vovikov84 [41]

Answer:

40) w = 32/3

41) x = 23/4

42) w = 1/12

Step-by-step explanation:

40) Real world problem:

If Lisa takes $7\frac{3}{8}$ of the pie from a total of $w$ slices, then the remaining pie is $3 \frac{7}{24}$ . Find w.

So, the equation would become:

$w - 7 \frac{3}{8} = 3 \frac{7}{24}$

$\implies w = 3 \frac{7}{24} + 7 \frac{3}{8}$

This can be written as:

$w = 3 + \frac{7}{24} + 7 + \frac{3}{8}$

This is equivalent to $3 + \frac{7}{24} + 7 + \frac{9}{24}$

Since, the denominator is the same, the numerators can be added now.

$\implies w = 10 + \frac{16}{24}$

$\implies w = 10 + \frac{2}{3}$

$i.e., w = 10 \frac{2}{3} = \frac{32}{3}$

Hence, the answer is 32/3.

41) The given equation is: $2 \frac{1}{2} + x = 8\frac{1}{4}$

$2 \frac{1}{2} = \frac{5}{2}$ and

$8 \frac{1}{4} = \frac{33}{4}$

So, $x = \frac{33}{4} - \frac{10}{4}$

$\implies x = \frac{23}{4}$

The answer is 23/4.

42) The given equation is $$ w - \frac{1}{3} = \frac{5}{12}$

$\implies w = \frac{5}{12} - \frac{1}{3}$

$w = \frac{5}{12} - \frac{4}{12}$

$w = \frac{1}{12}$

The answer is 1/12.

7 0

3 years ago

Which prime number do the prime factorization of 130 and 165 have in common?

Marizza181 [45]

Answer:

They both have the #5 and they both have 3 #'s that are prime?

Step-by-step explanation:

5 0

3 years ago

I love mathhhhhhhhhhhhhhhhh

katovenus [111]

I’m glad that you love math keep it up though why don’t you answer the your questions but anyway I’m not here to judge just to answer
Now the answer is =-4 =-1 = 3 = 5 = 6

6 0

3 years ago

4. Hightop Roofing was $3765 in the "red" (owed creditors this amount) at the end of

gulaghasi [49]

The negative sign shows that they still owed $5000 to the creditors which shows a loss of money between June and December.

Step-by-step explanation:

Amount owed at the end of June = $3765

Amount owed at the end of December = $8765

As Hightop Roofing owed creditors the amount, therefore, we will consider the amount as negative, therefore,

Amount in June = -3765

Amount in December = -8765

To see the difference, we will subtract the amount owed in June from the amount owed in December.

$Difference=(-8765)-(-3765)\\Difference=-8765+3765\\Difference=-5000$

The negative sign shows that they still owed $5000 to the creditors which shows a loss of money between June and December.

Keywords: difference, loss

Learn more about losses at:

#LearnwithBrainly

4 0

3 years ago