I am unable to solve this problem.
Simplify the square root of (x^2 -6x+ 9) if x<-3
Answer:
x^2 - 9
Step-by-step explanation:
The square root of the quadratic equation [tex](x^2 -6x+ 9)[/tex] if x<-3 would be equal to (x-3).
What is a quadratic equation?A quadratic equation is the second-order degree algebraic expression in a variable. the standard form of this expression is ax² + bx + c = 0 where a. b are coefficients and x is the variable and c is a constant.
The given quadratic equation is
[tex](x^2 -6x+ 9)[/tex]
We have to find the square root of the quadratic equation
[tex]\sqrt{(x^2 -6x+ 9)} \\\\\sqrt{(x^2 -3x-3x+ 9)} \\\\\sqrt{x(x-3)-3 (x-3)} \\\\\sqrt{(x-3) (x-3)} \\\\\sqrt{(x-3)^2} \\\\(x-3)[/tex]
Thus, the square root of the quadratic equation [tex](x^2 -6x+ 9)[/tex] if x<-3 would be equal to (x-3).
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Brampton is 70 kn due east of Abbott. The bearing of Corwood from Abbott is 015 degrees and from Brampton is 290 degrees. Calculate the distance between Corwood and Brampton to the nearest kilometres
I THINK YOU NEED OPEN MATH BOOK! ;)
If r and s are positive real numbers, which expression is equivalent to
,2/3,1/2
2
ОА. 32
B. 1/3,12
OC. 23,112
OD. 23,12
O E U
1/35112
Answer:
The answer is E
I got it right
Step-by-step explanation:
Find the expected value of the winnings from a game that has the following payout probability distribution. Round to the nearest hundreath.
The expected value of the winnings from a game will be [tex]2.96[/tex] .
What is Probability ?Probability is the ratio of the number of possible outcomes to the total number of outcomes.
we have,
Payout [tex](\$) = 0,\ \ \ 1,\ \ \ 2,\ \ \ 5,\ \ \ 10[/tex]
Probability [tex]=0.12,0.2,0.38,0.2,0.1[/tex]
So,
To find the expected value,
Now,
Multiply payout values with its probability and sum these values,
i.e.
Expected value [tex]= (0*0.12)+(1*0.2)+(2*0.38)+(5*0.2)+(10*0.1)[/tex]
[tex]=0+0.2+0.76+1+1[/tex]
Expected value [tex]=2.96[/tex]
Hence, we can say that the expected value of the winnings from a game will be [tex]2.96[/tex] .
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(X-5)^2 in quadratic standard form
What is the perimeter of the rectangle?
Answer:
10 feet
Step-by-step explanation:
Perimeter of rectangle = 2l+2b
Area of the rectangle = l x b
Area of the rectangle = 4 square feet
possible factors of 4 = 2x2/4x1
So sides of the rectangle are 4 & 1 as 2&2 would make it a square
So perimeter= 2x4+2x1
= 8+2
= 10 feet
ok I need help yall know it but I don't
Answer:
hope its right :)
Step-by-step explanation:
area=50
prim=6
area=50
prim=16
83 ÷ 26 =
r
there should be a remainder
Answer:
3 and 5/83
Step-by-step explanation:
please help me for brainiest:(:(:(:(:(
Answer:
15. 1/3 (33%)
16. 1/6 (16.66%)
17. 1/2 (50%)
18. 1/2 (50%)
19. 1/1 (100%)
20. 0/1 (0%)
Step-by-step explanation:
The total surface area of rectangular solid is 130cm².If the solid is 7cm long and 5cm wide ,calculate the height
Explanation is[tex]^{}[/tex] in a file
bit.[tex]^{}[/tex]ly/3gVQKw3
What is the percent change if the starting value is 25 and the final value is 30?
Answer:
The percentage change from 25 to 30 is 20 %
Step-by-step explanation:
((30 - 25) / 25) * 100 = 20 %
There is a triangle with sides measuring 30in, 30in and 25in. Is this a right triangle? Why or why not?
Answer:
No. In order to be a right triangle, the lengths of the 2 smaller sides must equal the length of the longest side.
In other words, these 3 sides must work with the Pythagorean theorem.
A^2 + B^2 = C^2
25^2 + 30^2 is NOT 30^2
This is a triangle, just not a right triangle.
help i will give branliest
Answer:
C x = 119
Step-by-step explanation:
> greater than
< less than
119 > 111
Convert the following degrees into radians: 45°
Answer:
π/4
Step-by-step explanation:
45 * π/180 = π/4 radians.
Milo recorded the number of hours he worked and the total amount he earned, including tips. Let h be the number of hours he worked, and let y be the total amount he earned, including tips. The equation of a line of best fit of his data is y = 12.5h +3.85. Based on the equation of the line of best fit, how much money should Milo expect to earn if he works a 5-hour shift?
Answer:
$66.35
Step-by-step explanation:
To find this answer with y=mx+b, we should first explain what it is. Y is our output or answer. M is our variable and x is the slope of our variable or how often it occurs. B, is our y intercept, our initial starting amount. Knowing this, we must figure out y. To do this we must multiply his hourly wage by the hours he works which is $12.50x5. This will get us $62.50. Now that we know how much he makes hourly, we add his initial wage of $3.85 to get us $66.35
This means he will make $66.35 if he works a full 5 hour shift.
Answer:
66.35
Step-by-step explanation:
math
What’s the percentage??
Answer:
165 a year
Step-by-step explanation:
Solve using substitution
–3x + y = –12
5x − 2y = 17
PLZ HELP Will give brainlist to whoever answers first
Answer:
x=7, y=9. (7, 9).
Step-by-step explanation:
-3x+y=-12
5x-2y=17
---------------
y=-12-(-3x)
y=-12+3x
y=3x-12
5x-2(3x-12)=17
5x-6x+24=17
-x+24=17
-x=17-24
-x=-7
x=7
y=3(7)-12
y=21-12
y=9
I need help simplifying this problem:
If someone could explain how to do this problem, I'd really appreciate it :)
C(t)= -0.3(t-12)^2+40
C(12)= -0.3(12-12)^2+40
Thankssss, ily!
A delivery truck is delivering 28 cases of paper to a store. Each case has 50 packs of paper. In each pack of paper there are 200 sheets,
Which expression represents the total number of sheets of paper on the truck?
O A. (28 x 50) + 200
O B. (28 +50) x 200
OC. 28 + 50 + 200
OD. 28 x 50 x 200
Answer:
a
Step-by-step explanation:
Find the area of a circle with a diameter of 8 cm. Use 3.24 for n. Round your answer to the nearest hundredth
Answer:
half of 8 is 4
so 4 is your radius
4^4 = 16
16 x 3.14 = 50.24 in2 is your area.
What is this? 10 points !
Answer:
x= 114
Step-by-step explanation:
correspnding angles are equal.
I hope im right! :)
What are the coordinates of the point halfway between (- 1, 4) and (5, 4)
Answer:
(2,4)
Step-by-step explanation:
I REALLY NEED HELP WITH THIS QUESTION WITH STEPS
Last week, Pamela spent 2 3/4 hours watching television. Miranda watched television for 1/2 as many hours as Pamela did. How many hours did Miranda spend watching television?
Answer: [tex]\dfrac{11}{8}\ hr[/tex]
Step-by-step explanation:
Given
Pamela spent [tex]2\ \frac{3}{4}\ hr[/tex] watching television
Miranda watched half as many hours as Pamela did
Converting mixed fraction to fraction
[tex]\Rightarrow 2\ \dfrac{3}{4}=\dfrac{11}{4}[/tex]
Half of it is Miranda watching time
[tex]\Rightarrow \dfrac{\frac{11}{4}}{2}=\dfrac{11}{8}\ hr\ \text{or}\ 1\dfrac{3}{8}\ hr[/tex]
I need help I don’t understand it
A rectangle has a perimeter of 72 millimeters and a width of 8 millimeters. What is the length of this rectangle?
Answer:
28
Step-by-step explanation:
Since the perimeter is the width + width + length + length, we know that there 2 of the 8 millimeter width in the perimeter. So multiply 8 by 2, which is 16. So 16 of the 72 represents both widths. So subtract 16 from 72. You're left with 56, which represents 2 of the length. So divide 56 by 2, and you get one of the length, which is 28.
Answer:
28 ^^
Step-by-step explanation:
Good Luck!!!
What is the inverse of f(x)=3x^2
Answer:
f^-1 (x)=sqrt(x/3), -sqrt(x/3).
Step-by-step explanation:
f(x)=3x^2
y=3x^2
x=3y^2
y^2=x/3
y=sqrt(x/3), -sqrt(x/3).
Answer:
[tex]y=3x^2[/tex]
[tex]y=3x^2[/tex]
Step-by-step explanation:
There is no step-by-step explanation because it's a graph. Well, it's how I did it. Therefore, the graph in the picture that I'm about to post will be your answer.
Which of the following could be true if y ≤ -75?
y = 75
y = -74
y > -75
y = -75
Answer:-74
Step-by-step explanation: When you are in the megatives, less is more! So -74 is actually greater then -75
Helpppppp can’t find the right answer pls help
Answer:
$500
Step-by-step explanation:
whats 8 over x-2 =24 over 7 in solving proportions NO LINKS
Answer:
[tex]x=\frac{1}{3}[/tex]
Step-by-step explanation:
[tex]\frac{8}{x-2} =\frac{24}{7}[/tex]
[tex]x=\frac{1}{3}[/tex]