Answers
Answer:
square the number in the middle to solve
it's easier than calculating the roots
1) true
2) true
3) false (obviously)
4) false (3² = 9, not less than 9)
5) true
6) true
Answer:
Step-by-step explanation:
True 2.23<2.3<2.44
True 2.23<2.4<2.44
True
False 2.82<3<3
True 2.82<2.9<3
False 2<4.5<2.23
Related Questions
please help a girl out
Answers
Answer:
[tex]r=\frac{7±3\sqrt{5} }{2}[/tex]
Ignore the A before the ±. It wouldn't let me type it correctly.
Step-by-step explanation:
2r² + 7r - 1 = 3r²
2r² + 7r - 1 - 3r² = 0
- r² + 7r - 1 = 0
- (r² - 7r + 1) = 0
- (r² - 7r + 1) ÷ - 1 = 0 ÷ - 1
r² - 7r + 1 = 0
[tex]r=\frac{-b±\sqrt{b^{2}-4ac } }{2a}[/tex]
Ignore the A before the ±. It wouldn't let me type it correctly.
r² - 7r + 1 = 0
a = 1
b = - 7
c = 1
[tex]r=\frac{-(-7)±\sqrt{(-7)^{2}-4((1)(1)) } }{2(1)}[/tex]
[tex]r=\frac{-(-7)±\sqrt{49-4((1)(1)) } }{2(1)}[/tex]
[tex]r=\frac{-(-7)±\sqrt{49-4 } }{2(1)}[/tex]
[tex]r=\frac{-(-7)±\sqrt{45 } }{2(1)}[/tex]
[tex]r=\frac{-(-7)±\sqrt{(3)(3)(5) } }{2(1)}[/tex]
[tex]r=\frac{7±(\sqrt{3 } )(\sqrt{3})(\sqrt{5}) }{2(1)}[/tex]
[tex]r=\frac{7±3\sqrt{5} }{2}[/tex]
Two separate equations
[tex]r=\frac{7+3\sqrt{5} }{2}[/tex]
[tex]r=\frac{7-3\sqrt{5} }{2}[/tex]
Josie earns $40.00 for every house that she cleans. She also receives a bonus of $50 each month.
Enter an equation that can be used to find the total amount Josie earns (y), in dollars, for cleaning x houses in one
month.
Answers
Answer:
y=40x+50
Step-by-step explanation:
PLS HELP WILL GIVE YOU BRAINLIEST!!!!!!!!!!!!
A contractor determined the average amount of time needed to build a house. * When 5 workers are used, it takes 52 days to build the house. * When 20 workers are used, it takes 13 days to build the house. if W represents the number of workers and D represents the number of days required to build the house, which statement is true about this relationship?
A) The time required to build a house varies directly with the number of workers because d=260w.
B) The time required to build a house varies directly with the number of workers because wd= 260.
C) The time required to build a house varies inversely with the number of workers because d=260w.
D) The time required to build a house varies inversely with the number of workers because wd= 260.
Answers
the number of workers because d=260w.
D) The time required to build a house varies inversely with the number of workers because wd= 260.
Answer:
BAKAAHAKAKAKAKAKAKAKAKAKAKKAKA
Step-by-step explanation:
NSJLLLLLLLLLLLLLLLLLL
cKASN.ANV.ANV,.ADNV,.ANDA,.NV.ANANV
Question on image. (6)
will report answers out of question. Thank you
Answers
Answer:
the answer is 6 i think
Step-by-step explanation:
Answer:
XW=5
Step-by-step explanation:
WY is congruent with ZW, so WY=12
XY is the radius, so XY=13
Since this is a right triangle, you use Pythagorean therom to solve for XW.
a²+b²=c²12²+x²=13²144+ x²=169x²=25x=5XW=5What are the two smallest consecutive odd integers whose sum is greater than 17
Answers
Answer:
9 and 11
Step-by-step explanation:
Jim is repainting a free-throw key of a basketball court. the free-throw is made by combining a rectangle and a semicircle, as shown below. In order to know how much paint to purchase, Jim will determine the area of the free-throw key. What is the total area, to the nearest whole square foot, of the free-throw key shown in the diagram?
Answers
Answer:
285
Step-by-step explanation:
First find the area of the rectangle
A = l*w
A = 19*12 = 228
The find the area of the semicircle
A = 1/2 pi r^2
We know the diameter is 12 so the radius is half the diameter so 1/2 (12) = 6
A = 1/2 (3.14)(6)^2
= 1/2 (3.14) (36)
= 56.52
Add the two areas together
225+56.52
284.52
Rounding to the nearest whole number
285
Help! For solving the compound inequality
Answers
Click on the second choice, the 3x one
I need helppp:(((((((
Answers
Answer:
1= e
2= c
Step-by-step explanation:
Which of these strategies would eliminate a variable in the system of equations?
2x — бу = 6
6x – 4y = 2
Answers
Explanation: I’ll use A as an example. When you multiply the bottom equation by -3/2, the equation becomes: -9x+6y=-3. Then, proceed to add the equations. Look at X and Y in both equations: do the Y variables in both equations equal to 0 when added together? Yes, because -6y+6y=0! Therefore, you can eliminate y in these two equations.
Hope that’s helps シ
uhh yeah i need help please
Answers
We first need to figure out our pattern. It looks like we are subtracting 7 each time.
Using that pattern, let's continue it!
43 - 7 = 36
36 - 7 = 29
29 - 7 = 22
Hope this helps!! :)
Answer:
36,29,22
Step-by-step explanation:
64 - 57 = 7
57-50 =7
50-43=7
We are subtracting 7 each time
43-7 =36
36-7 = 29
29 -7= 22
Simplify the following....
Want it with explanation...
Will give brainliest for the best...
Answers
Answer:
it is about 3.78 if you round to the nearest hundredth
Which slope gives the line the steepest slant? - 13/4 or - 12/5
Answers
Answer:
-13/4
Step-by-step explanation:
WILL GIVE BRAINLIEST AND THANKS. find the value of x
Answers
Answer:
12
Step-by-step explanation:
20² - 16² = x²
400 - 256 = x
400 - 256 = 144
√144 = 12
What is the perimeter of this equilateral triangle?
Choices
4
20
40
60
Answers
Answer:
60
Step-by-step explanation:
If it is an equilateral triangle the sides are equal
24-x = 5x
Add x to each side
24-x+x = 5x+x
24 =6x
Divide by 6
24/6 =6x/6
4 =x
Each side is 5x or 5*4 = 20
Add the 3 equal sides
20+20+20 = 60
The perimeter is 60
Answer:
60
Step-by-step explanation:
In this case, to find the perimeter, we need to know the value of at least one side.
Since this triangle is equilateral, [tex]5x=24-x[/tex].
Adding x to both sides results in [tex]6x=24[/tex], and subsequently, [tex]x=4.[/tex]
Now that we know x equals 4, we can plug this into either 5x or 24-x and find out that one of the sides is 20.
Equilateral triangles have three equal sides, so 20 times 3, or 60, is the perimeter. I hope this helped!
What is the solution to this equation?
2x-x+ 9 + 3x - 2 = 16
A. x=23/4
B. x-9/4
c. x-23/5
D. x-9/5
Answers
Answer:
the answer for this question is B
Answer:
x=9/4
If you want the steps I can add them for you.
Step-by-step explanation:
I believe this is correct, if not let me know and I'll fix it. I'm sorry in advance if it is incorrect.
1/8 pens are in a bag and is to be shared between 3 people . What fraction of pen should each person get?
Answers
Answer:
1/24
Step-by-step explanation:
1/8 divided 3/1
1/8 x 1/3=1/24
Find m∠ABD and m∠CBD given m∠ABC = 111∘.
Answers
Answer:
m∠ABD = 88º
m∠CBD = 23º
Step-by-step explanation:
(-10x + 58) + (6x + 41) = 111
Combine like terms
-4x + 99 = 111
Subtract 99 from both sides
-4x = 12
Divide both sides by -4
x = -3
------------------------
m∠ABD = -10x + 58
m∠ABD = -10(-3) + 58
m∠ABD = = 30 + 58
m∠ABD = 88º
m∠CBD = 6x + 41
m∠CBD = 6(-3) + 41
m∠CBD = -18 + 41
m∠CBD = 23º
Answer:
88, 23
Step-by-step explanation:
<ABD + <DBC = <ABC
(-10x + 58) + (6x + 41) = 111
-10x + 58 + 6x + 41 = 111
99 - 4x = 111
-4x = 111-99
-4x = 12
x = 12/-4
x = -3
m∠ABD = -10x + 58
m∠ABD = -10(-3) + 58
m∠ABD = = 30 + 58
m∠ABD = 88º
<DBC = 6x + 41 = 6*-3 + 41 = -18 + 41 = 23
Hope it helps u
Please mark as brainliest
Find the measure of arc DF
Answers
Answer:
Step-by-step explanation:
Angle E is one-half the measure of the difference between arc CG and arc DF. Mathematically, that looks like this:
[tex]44=\frac{1}{2}(160-DF)[/tex] and
44(2) = 160 - DF and
88 = 160 - DF and
-72 = -DF so
DF = 72 degrees, second choice down
HBHBVHBHEBCB PLEASE HELP WHAT IS :
x/6= -2
Answers
Last month Maria hiked a total of 90 miles on two trails: a 5-mile mountain trail and a 10-mile canal trail. Let x represent the number of times Maria hiked the mountain trail, and let y represent the number of times Maria hiked the canal trail.
Which equation can be used to find the number of times Maria hiked each trail?
Answers
Answer:
5x+10y=90
Step-by-step explanation:
The equation that can be used to find the number of times Maria hiked each trail is 5x + 10y = 90.
How to depict the equation?From the information, Maria hiked a total of 90 miles on two trails: a 5-mile mountain trail and a 10-mile canal trail.
x represent the number of times Maria hiked the mountain trail.
y represent the number of times Maria hiked the canal trail.
The equation will be:
= (5 × x) + (10 × y) = 90
= 5x + 10y = 90
The equation is 5x + 10y = 90.
Learn more about equations on:
brainly.com/question/2972832
#SPJ9
Select the correct answer.
A graduate school plans to increase its enrollment capacity by developing its facilities and the programs it offers. Their enrollment capacity this year was 120 graduate students. Beginning next year, the school plans to triple this number every year, with a target enrollment capacity of 3,240 students.
Which equation represents this situation, and after how many years, t, will the graduate school be able to achieve its target enrollment capacity?
Answers
Answer:
120(3)t = 3,240; t = 3
Step-by-step explanation:
what is the slope of the line parallel to 9/10x +4y =70
Answers
Answer:
y=−9/40x+3/52
Using the slope-intercept form, the slope is −9/40.
the slope: m=−9/40
Step-by-step explanation:
pls help pls answer correctly pls no links pls i beg
Answers
Answer:
djdjdjfjfjfgffjfjjfjfkff
Please help, Im really struggling
The officers of the local high school’s Parent Teacher Association (PTA) are planning a dinner. At the dinner, the PTA will present the Teacher-of-the-Year award to a teacher in the school. Which population should the officers survey to identify the teacher who should get this award?
A. All of the members of the PTA.
B. All of the students in the school.
C. All of the teachers in the school.
D. All of the parents of the students in the school.
Answers
Answer:
Sorry i'm late
It's B: All of the students in the school
Step-by-step explanation:
Did the quiz
help please i need it bad
Answers
Answer:
-13, -3
15, 2.6
Step-by-step explanation:
x, y are the numbers
x = 5y + 2
x×y = 39
(5y + 2)×y = 39
5y² + 2y - 39 = 0
the solution of a quadratic equation :
y = (-b ± sqrt(b² - 4ac))/2a
a = 5
b = 2
c = -39
y = (-2 ± sqrt(2² - 4×5×-39))/2×5 =
= (-2 ± sqrt(4 + 780))/10 =
= (-2 ± sqrt(784))/10 = (-2 ± 28)/10
y1 = (-2 + 28)/10 = 26/10 = 2.6
y2 = (-2 - 28)/10 = -30/10 = -3
x1 = 5×2.6 + 2 = 13 + 2 = 15
x2 = 5×-3 + 2 = -15 + 2 = -13
x3 + 5y when x = 4, y = -3
Answers
Answer:
49
Step-by-step explanation:
4^3=64
5(-3)=-15
64+(-15)=49
Answer:
49
Step-by-step explanation:
First, because of the order of operations, you would do 4^3 (or four to the power of three) first to get 64. 5×-3 is equal to -15, and a positive number plus a negative number is just that positive number minus a positive version of the negative number, if that even makes sense. Basically, 35 + -2 would be equal to 35-2. 64-15 is equal to 49, which is your answer!
I hope this helped you!
Diana earns $9.95 per hour
working at the bank. She
needs to save at least
9
$200.00 in 3 weeks.
Which inequality can be used
to determine h, the number of
hours she needs to work to
reach her goal?
Answers
Answer:
m = $9.00 * h.
Step-by-step explanation:
hours: 4, 5, 6, 7,
money: 34, 42.5, 51, 59.5,
A movie theater sells up to 10 tickets at a time online. What is the domain of this graph?
Answers
Answer:
I think the correct answer is B
Explanation:
Solve the triangle. Round decimal answers to the nearest tenth
Answers
Answer:
my answer is in this picture
is 3 equivalent to this? yes or no? ill give brainliest
Answers
Answer:
No
Step-by-step explanation:
This is 3 times 3
3 would be 3 with a 1 instead of a 2