Answer:
Step-by-step explanation:
The simple short answer is because all real numbers are to be squared.
If any negative value is put into x^2, the value will become positive. That's because an even number of negatives are positive.
For example y = x * x
Let x = - 3
y = (-3)(-3)
y = 9 because there are an even number of negatives.
Notice that if break x^2 into x * x, you should see more clearly that each x is equal to - 3
Evaluate - 7x + y when x= -1 y= -9
Answer:
-2
Step-by-step explanation:
-7(-1)+(-9)
7+(-9)
-2
Quadrilateral A'B'C'D' is the image of quadrilateral ABC D under a dilation.
What is the scale factor of the dilation
Answer:
Step-by-step explanation:
help fast thanksddddd
Answer:
2) 10/9 = 1.111111111
3) 1/2 = 0.5
4) 2
5) 3/7 = 0.428571429
6) 4/5 = 0.8
7) 1
8) 42/11 = 3.818181818
9) 5/3 = 1.666666667
10) 7/4 = 1.75
Step-by-step explanation:
Hope this helps
Answer:
2. 19
18
3. 1
4. 6
5
5. 5
4
6. 9
10
7. 1
8. 53
66
9. 4
3
10. 11
28
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1/2 ∙ 5/8..........plz help me
Answer:
5/16
Step-by-step explanation:
Multiply the numerators: 1x5=5
Multiply the denominators: 2x8=16
Simplify if needed
5/16
Answer:
[tex]\frac{5}{16}[/tex]
Step-by-step explanation
·[tex]\frac{1}{2}x \frac{5}{8} = 2x8+1x5= \frac{5}{16}[/tex]
HEY PLEASE HELP ASAP I WILL GIVE BRAINLEST!!!!
Answer:
117
Step-by-step explanation:
18x9=162
5x9=45
162-45=117
Find the values of x and y in the diagram.
Answer:
x = 18
y = 6
Step-by-step explanation:
In triangle UTR, measures of all angles are equal (60°). (given)
Therefore, it is an equilateral triangle.
So, it's sides will also be equal.
In triangle TRS, m angle T = m angle S
So, RT = RS = 11 (sides opposite to the equal angles are equal)
In triangle URT,
UT = RT (sides of equilateral triangle)
x - 7 = 11
x = 11 + 7
x = 18
In triangle TRS,
m angle T = m angle S = 5y°
m angle R = 180° - 60° = 120° (Linear pair angles)
5y° + 5y° + 120° = 180°
10y° = 180° - 120°
10y° = 60°
y = 60/10
y = 6
A company has $54,000 in a bank account that pays an interest of 2% per year. How much money can I withdraw at the end of one year?
Answer:
$55,080
Step-by-step explanation:
Hope this helps.
if the price of aluminum cans is 32 cents per pound and it takes 32 cans to make 1 pound how many cans do I need to make $100?
Answer:
1,000 cans
Step-by-step explanation:
Since there are 32 cans per pound and each pound is 32 cents. You divide 32/32 which tells you each can is 1 cent. So 100 dollars divided by 1 cent is 1,000 cents or 1,000 cans since each can is 1 cent.
Answer:
1000 can
u hope it will help you
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In continuous type of series, for finding mean, which amongst the
following is considered as X variable value?
Select one:
O a lower limit of the interval
O b. upper limit of the interval
O c. mid point of the interval
O d. none of these
In the continuous type of series for determining the mean, the midpoint of the interval should be considered as the X variable value.
Continuous Series is the series where all types of class intervals with the frequency should be listed in the table form. Here all the class intervals do not contain a similar frequency.
For determining the mean, the direct method should be used in which the midpoint from X should be measured and the same should be relevant.
So, the following should not be relevant for determining the mean:
The lower limit and upper limit of the interval.Therefore In the continuous type of series for determining the mean, the midpoint of the interval should be considered as X variable value.
Learn more about the mean here:brainly.com/question/11230531
Solve the equation
3x+1+10x=x+4
Answer:
x=¼
Step-by-step explanation:
3x+1+10x=x+4 (Group like terms )
3x+10x-x=4-1
12x=3(Divide both sides by 12)
[tex] \frac{12x}{12} = \frac{3}{12} [/tex]
[tex]x = \frac{1}{4} [/tex]
The sum of the speeds of two trains is 718.4 miles per hour. If the speed of the first train is 3.6 mph faster than that of the second train, find the speeds of each
Answer:
the answer is 359.7
Step-by-step explanation:
3 Select all the equations that the number 7 will make true. (1 Point)
3+4
that is one of em but you did not provide me with an image so i cant really answer but give u a simple equation like that one on top.
pls help................
lissa has $75 worth of bird seed, which she will put into small bags. She will sell each bag for $7. What is the greatest number of bags she must sell in order to have no less than $10 worth of bird seed left over?
9 bags of bird seed is the answer
Find the delivertive of
y = x²+x-1
Answer:
2x + 1
Step-by-step explanation:
[tex]y = {x}^{2} + x - 1 \\ \\ differentiating \: w.r.t.x \: on \: both \\ sides \\ \\ \frac{dy}{dx} = \frac{d}{dx} ({x}^{2} + x - 1) \\ \\\frac{dy}{dx} = 2x + 1 - 0\\ \\ \frac{dy}{dx} = 2x + 1 \\ \\[/tex]
There is a population of 1,000,000 bacteria in a colony. If the number of bacteria doubles
every 4 hours, what will the population be 8 hours from now?
Frederick’s pickup truck can carry up to 800 pounds. His truck already has a 350-lb. box loaded onto its tailgate. Frederick wants to haul some 75-lb. bags of concrete. Which inequality can be used to determine the greatest number of bags he can haul without exceeding his truck’s weight load capacity? A 350 + 75b ≥ 800 B 350 – 75b ≥ 800 C 350 + 75b ≤ 800 D 350 – 75b ≤ 800
Answer:
C
Step-by-step explanation:
Answer:
C.
Step-by-step explanation:
I did the Math activity
Independent Practice: Writing and Solving Two-Step Inequalities
15 (2/5+1 1/3)+ 3 please help
Answer:
29
Step-by-step explanation:
I did it with a calculator.
Given that f(x) = 4x + 5 and g(x) = x2 - 2x - 2, find (f + g)(x).
Answer:
x^2 + 2x + 3
Step-by-step explanation:
x^2 - 2x -2 + (4x +5) -------------> x^2 +2x +3
In terms of x so it stays the same
find the final price of a $149.99 smart watch with 8.5 sales tax
Answer:
167.64
Step-by-step explanation:
To evaluate the tax add on, divide 149.99 by 8.5 which divided and rounded is 17.65add 17.65 and 149.99Please show me how u got theses Answer
7 times 7 times 7
3 times 3 times 3 times 3 times
Answer:
7 x 7 x 7= 49 x 7= 343
3 x 3 x 3 x 3= 9 x 3 x 3= 27 x 3= 81
find the value of x... 3(2x + 5) = 5x + 25
Answer: x =10
Step-by-step explanation:
Answer
10
Step-by-step explanation:
3[2x±5]=5x±25
6x±15=5x±25
6x-5x=x
25-15=10
x=10
How much charge is needed to repel another charge of 9.9 x 10^-6 N when they are 200m apart? Please help meee I really can't understand Coulomb's Law : (
Answer:
The charge needed will be [tex]q=6.6\: \mu C[/tex]
Step-by-step explanation:
The equation of the electric force is given by:
[tex]F=k\frac{qQ}{r^{2}}[/tex]
We have the force [tex]F = 9.9 10^{-6}\: N[/tex] and the distance r = 200. k is the Coulomb constant. Q and q are the charges.
We assume we have the same charge of the particles, so we have:
[tex]q^{2}=\frac{Fr^{2}}{k}[/tex]
[tex]q^{2}=\frac{9.9*10^{-6}200^{2}}{9*10^{9}}[/tex]
[tex]q=6.6*10^{-6}\: C[/tex]
Therefore, the charge needed will be [tex]q=6.6\: \mu C[/tex]
I hope it helps you!
if the water bill costs 487.75.and the electict bill costs 952.50.how much will be needed to pay for the bill?
1.what is asked?
2.what are given?
3.what operation will be used?
4.what is the number sentence?
5.what is the sulotion and answer?
1. it is asked to find how much will be needed to pay for the bill
2. 487.75 952.50
3. multiply
4. I don't know
5. 487.75 multiplied by 952.50 equals 464,581.875
Please give the right answer and show work if possible
Step-by-step explanation:
[tex] \sin(48) = \frac{25}{qr} \\ qr = \frac{25}{ \sin(48) } = \frac{25}{0.743} \\ qr = 33.65[/tex]
what is the term or answer for−3x − 6 + (−1)
Answer:
-3x-7
Step-by-step explanation:
Answer:
-3x-6+(-1)
-3x-7
X= -7÷-3
x=2.3
Find the line’s slope and a point line (HELP PLEASE)
Slope: 1/4
A point on the line: (0, 17/4)
I rewrote the equation in slope intercept form (y=mx+b), it was y=1/4x+17/4
The slope is m, and b is the y intercept (where the line crosses the y - axis), that's the easiest point to find if you have the equation.
How to solve this problem
Answer:
there is no picture or anything
The angles of a quadrilateral are in the ratio 2:4:5:6 what is the difference between the largest angle and the smallest angle
Answer:
85
Step-by-step explanation:
From the question given above, the following data were obtained:
Ratios of the angle => 2 : 4 : 5 : 6
Difference between the largest angle and the smallest angle =?
Next, we shall determine the various angles in the quadrilateral. This can be obtained as follow:
Ratios of the angle => 2 : 4 : 5 : 6
Total ratio = 2 + 4 + 5 + 6
Total ratio = 17
Angle in a quadrilateral = 360
For ratio 2:
Angle = 2/17 × 360 ≈ 42
For ratio 4:
Angle = 4/17 × 360 ≈ 85
For ratio 5:
Angle = 5/17 × 360 ≈ 106
For ratio 6:
Angle = 6/17 × 360 ≈ 127
SUMMARY:
The angles are => 42°, 85°, 106° and 127°
Finally, we shall determine the difference between largest angle and the smallest angle. This can be obtained as follow:
Smallest angle = 42°
Largest angle = 127°
Difference between the largest angle and the smallest angle =?
Difference = Largest – Smallest
Difference = 127 – 42
Difference = 85
Thus, the difference between the largest angle and the smallest angle is 85.
Pls help I’ll brainlest ASAP
Answer:
Step-by-step explanation:
The second equation is twice the first equation. So they can multiply by 2.
Answer:
hahaha
Step-by-step explanation: