Which are solutions of the equation x2 - 16 = 0? Check all that apply.
O x=-8
O x=-4
O x= -2
O x=2
Ox=4
O x=8
The solutions of the given equation are x=4 and x=-4. Therefore, options B and E are the correct answers.
What is the solution of a quadratic equation?The solutions to the quadratic equation are the values of the unknown variable x, which satisfy the equation. These solutions are called roots or zeros of quadratic equations. The roots of any polynomial are the solutions for the given equation.
The given quadratic equation is x²-16=0.
Here, x²=16
x=±√16
x=±4
So, the solutions are x=4 and x=-4.
Therefore, options B and E are the correct answers.
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Please Help Me! I have no idea what I'm supposed to do. ;-;
Any Answers that are wrong will be reported sorry...
Answer:
RECORD TIME
Step-by-step explanation:
I just solved the first expression and went in the direction of the correct answer and got the words 'RECORD TIME'. It took me about 3 minutes
Solve the following systems of equations without graphing 5x + 10y = 30
Answer: ready dude good luck :)
please help, asap thank you!
Answer:
A)
[tex]\sqrt{290}\approx 17.0\text{ units}[/tex]
B)
[tex]\sqrt{53}\approx7.3\text{ units}[/tex]
Step-by-step explanation:
To find the distance between any two points, we can use the distance formula:
[tex]d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2[/tex]
Problem 1)
We have the two points (-4, 5) and (7, 18).
Let (-4, 5) be (x₁, y₁) and let (7, 18) be (x₂, y₂).
Substitute:
[tex]d=\sqrt{(7-(-4))^2+(18-5)^2}[/tex]
Evaluate:
[tex]\begin{aligned}d&=\sqrt{(11)^2+(13)^2}\\&=\sqrt{121+169}\\&=\sqrt{290}\approx17.0\end{aligned}[/tex]
Problem 2)
We have the two points (-2, -3) and (-4, 4).
Similarly, we will let (-2, -3) be (x₁, y₁) and (-4, 4) be (x₂, y₂).
Substitute:
[tex]d=\sqrt{(-4-(-2))^2+(4-(-3))^2[/tex]
Evaluate:
[tex]\begin{aligned}d&=\sqrt{(-2)^2+(7)^2}\\&=\sqrt{4+49}\\&=\sqrt{53}\approx7.3\end{aligned}[/tex]
what is 2x+3x?????????
Answer:
2x + 3x = 5x.
Explanation:
Since they both have the same variable you can just add them so you get 5x.
I hope this helps you :D
i need help with this
Answer:
y = 6/5x -5
Step-by-step explanation:
Points are (5,1) (0,-5)
-5 - 1/ 0-5 = 6/5 slope
y-y1= m(x-x1)
y- 1 = 6/5(x-5)
y -1 = 6/5X - 6
y = 6/5X -5
I NEED HELP
PLZZ ONLY WITH NUMBER 9
BTW ONLY NUMBER 9
Answer:
There are many to do this, but the simplest way is to put the fractions into a calculator (16*14)+9 ÷ 16 = 14.5625 . and (16*11)+13 ÷16 = 11.8125
If they are looking for which one is higher? The birdhouse.
If they want the difference? Subtract one from the other = 2.75 units
Step-by-step explanation:
Someone pls help me :( will give BRAINLIST pls pls pls
Answer:
157.07963
Step-by-step explanation:
29/50 as a decimal number.
Answer:
Step-by-step explanation:
Multiply the top and bottom by 2 to get the fraction in terms of 100. This will make the problem a lot easier.
29/50 = 58/100 = 0.58
Simplest form of the number 29/50 as a decimal number⇒ 0.58
What is mean by Fraction?A fraction is a part of whole number, and a way to split up a number into equal parts. and number which is expressed as a quotient is called fraction. It can be written as the form of p : q, that is equivalent to p / q.
We are Given that 29/50 as fraction
Now, We can simplify the fraction as Multiply the top and bottom by 2 to get the fraction in terms of 100.
29/50 = 58/100
Thus, Simplest form of the number
58/100 = 0.58
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PLEASE HELP!! I AM BEING TIMED!!
WILL MARK BRAINLIEST!
Answer:A b c a c b c a b b a e all answers trust me and mark me brainest
Step-by-step explanation:
Answer:
cant see it make it bigger
Step-by-step explanation:
answer for brainliest
Answer:
A = 452.16
Step-by-step explanation:
A = 1/4 x 3.14 x d^2
Answer:
75.36
Step-by-step explanation:
did math
HELP!!! I have no idea what the answer is.
Answer:
0, 1/2
Step-by-step explanation:
Write and solve a proportion to complete the statement. 12.6 kg= ? ib
Answer:
27.78 pounds
Happy to help
Hope it's write
Determine the domain of the graph shown.
A) [0, 8]
B) [0, 24]
C) [0, 20]
D) [0, 10]
A square has a side length of 2.3 feet. What is the area of the square?
wait actually im not to sure about this one
Please i really need help! i need a full explanation
Answer:
Conduction is the transfer of thermal energy through direct contact between particles of of a substance, without moving the particles to a new location. Conduction usually occurs in solids. Convection is the transfer of thermal energy through movement of particles from one location to another. Convection usually occurs in liquids. Radiation is the emission of energy as waves or particles or rays. Radiant energy is either reflected or absorbed by matter. Convection causes things like the rain cycle and radiation comes from things like the sun.
Hope this is what you're looking for :)
PLEASE HELP NOWWWWWWWWWW
Answer:
No
Step-by-step explanation:
just follow the directions
What is the circumference of the following circle?
Answer:
9.42 or 3pi
Step-by-step explanation:
equation of a circle is 2*pi*r
2r is d which is 3 so the answer would be 3pi which equals about 9.42
could somebody help me please
Answer:
Step-by-step explanation:
A number squared is just the number times itself.
[tex]n(n)=n^2[/tex]
Answer:
A number squared is a number to the power of 2 or the number times itself.
Step-by-step explanation:
Lets say you have a 4 to the 2nd that would mean that the 4 is multiplied by 4. Dont get the exponent confused as the number to multiply it as. Look at [tex]9^{2}[/tex] for example, you would multiply the number 9 2 times not 9 times 2 so it would be 9x9.
A moving van ramp is 72 inches in length. The top of the ramp can be adjusted to any height up to 20 inches. The ramp is set so that the distance across the ground from the bottom of the ramp to the ground underneath the top of the ramp is 70 inches. What is the height of the ramp above the ground? Round the answer to the nearest tenth of an inch.
2.0 inches
10.0 inches
16.9 inches
69.2 inches
Answer:
C. 16.9
Step-by-step explanation:
Answer:
C.
Step-by-step explanation:
he length of the stretch (in millimeters) of a spring is proportional to the weight (in grams) attached to the end of the spring as shown in the graph. a) Label the points given (give the ordered pair). b) What is the unit rate? c) Plot and label the point whose ordered pair represents the unit rate. d) What are the coordinates of that point? e) Explain what the point that you plotted means in this context of this problem. f) Write an equation for this graph.
Answer:
a) Label the points given (give the ordered pair).
(2, 10), (3, 15), (7, 35)b) What is the unit rate?
10/2 = 15/3 = 35/7 = 5c) Plot and label the point whose ordered pair represents the unit rate.
Plot the point at 1 unit right, 5 units upd) What are the coordinates of that point?
(1, 5)e) Explain what the point that you plotted means in this context of this problem.
1 gram of weight is proportional to 5 mm stretchf) Write an equation for this graph.
y = 5xPlease help!! Giving brainliest and extra points!! (Click on photo)
Answer:
10
Step-by-step explanation:
If J + K = 90 degrees and K = 45 degrees, J has to be 45 degrees.
3x+15=45
-15 -15
3x=30
/3 /3
x=10
An isosceles triangle has an angle that measures 66°. Which other angles could be in that isosceles triangle?
Answer:
57 and 57 or 66 and 48
Step-by-step explanation:
180-66=114
114/2=57
the awnser is 24
Step-by-step explanation:
I think it might be wrong sorry if it wrong
find the slope of the line that passes through the following points (10,4) (-2,-5)
Answer:
slope = 3/4
Step-by-step explanation:
slope = (difference in y)/(difference in x)
slope = (-5 - 4)/(-2 - 10) = -9/(-12) = 3/4
Answer:
0.75
Step-by-step explanation:
Slope (m) = ΔY/ΔX = 3/4 = 0.75
What is the height of the trapezoid if the Area = 26 un²?
Answer:4
Step-by-step explanation:
H= 2*26/5+8
Here's an interesting point on the graph.
What do these numbers (5 and 12.3) tell us about
Cannon Man?
Answer:
Step-by-step explanation:
Answer:
Step-by-step explanation:
I need help with my math assignment
Answer:
y = 3x + 11
Step-by-step explanation:
obviously since y is 11 when x is zero the constant term is 11.
Then use the other coordinates to find the cooefficent of x.
-4= c × -5 + 11
-4= -5c + 11
5c=15, c=3
Therefore the equation should be:
y= 3x + 11
Simplify the expression. Write your answer as a power.
[tex]4^{7} . 4^{4}[/tex]
The expression is
Answer:
not clear
Step-by-step explanation:
Solve the following equation:
1.3(a + 2) + 5.6 = 17.3
Answer:
a=7
Step by step Explanation:
Step 1: Simplify both sides of the equation.
1.3(a+2)+5.6=17.3
(1.3)(a)+(1.3)(2)+5.6=17.3(Distribute)
1.3a+2.6+5.6=17.3
(1.3a)+(2.6+5.6)=17.3(Combine Like Terms)
1.3a+8.2=17.3
1.3a+8.2=17.3
Step 2: Subtract 8.2 from both sides.
1.3a+8.2−8.2=17.3−8.2
1.3a=9.1
Step 3: Divide both sides by 1.3.
1.3a 9.1
1.3 = 1.3
a = 7
9 points to 4 points, what is the percent
Answer:
5% ????
Step-by-step explanation:
Not sure?
I think its 5%