a=2 b=15 c=-9
[tex]( - b + - \sqrt{b ^{2} - 4ac } ) \div 2a[/tex]
+ =0.5584
- =-8.0584
please help i will give brainlist!!
Answer:
1157.09
Step-by-step explanation:
I ned help i do not understand
Answer:
x=78
Step-by-step explanation:
x+x+24=180
2x+24=180
2x=156
x=78
HELP! will give brainliest if you show work on how to get this answer below!
Solve for x. Check for extraneous solutions.
2+ sq root (x+18)=x
answer should be:
7(-2 is extraneous)
Kekskekeke
Step-by-step explanation:njbnmmk
Answer:
It should be 7! :)
Step-by-step explanation:
Isolate the radical, then raise each side of the equation to the power of its index.
6. If l // k and k // m, then
Answer:
If l //k and k// m then L//mSo, option D is your answer
Step-by-step explanation:
If 2 lines are parallel to A Third line, then the 2 lines are parallel.
[tex]------------[/tex]
hope it helps..
have a great day!!
Solve using the quadratic formula. Show all work. Write each solution in simplest form. No decimals.
Answer:
D
Step-by-step explanation:
For a quadratic equation ax² +bx +c= 0, the quadratic formula is as below:
[tex]\boxed{x = \frac{ - b± \sqrt{ {b}^{2} - 4ac } }{2a} }[/tex]
x² -12x +7= 0
[tex]x = \frac{ - ( - 12)± \sqrt{( - 12) {}^{2} - 4(1)(7) } }{2(1)} [/tex]
[tex]x = \frac{12± \sqrt{144 - 28} }{2} [/tex]
[tex]x = \frac{12± \sqrt{116} }{2} [/tex]
[tex]x = \frac{12± \sqrt{4(29)} }{2} [/tex]
[tex]x = \frac{12±( \sqrt{4})( \sqrt{29} )}{2} [/tex]
[tex]x = \frac{12±2 \sqrt{29} }{2} [/tex]
[tex]x = 6± \sqrt{29} [/tex]
[tex]∴x = 6 + \sqrt{29} \: \: \: or \: \: \:x = 6 - \sqrt{29}[/tex]
WILL GIVE BRAINLIEST
PHOTO ATTACHED
Drag each tile to the correct box.
Arrange the solutions of the mathematical expressions from least to greatest according to their values in scientific notation.
(4.3x10^6).(9.8x10^-4)
(2.9x10^7)-(1.6x10^–9)
(4.7 x 10^3). (8.6 x 10^-7)
________________
(3.8 x 10^-4). (6.1 x 10^2)
(4.9x10^3).(74x10^–6)
(3.9 x 10^5). (8.7 x 10^-3)
_________________
(3.7 x 10^-5). (2.9 x 10^8)
Answer:
3,4,2,5,1. youre welcome :)
The arrangement of the solutions of the mathematical expressions from least to greatest according to their values in scientific notation is as follows:
Order Mathematical expressions
1. 3. (4.7 x 10^3). (8.6 x 10^-7)
________________
(3.8 x 10^-4). (6.1 x 10^2)
2. 4. (4.9x10^3).(74x10^–6)
3. 2. (2.9x10^7)-(1.6x10^–9)
4. 5. (3.9 x 10^5). (8.7 x 10^-3)
_________________
(3.7 x 10^-5). (2.9 x 10^8)
5. 1. (4.3x10^6).(9.8x10^-4)
What are mathematical expressions?Mathematical expressions are a combination of numbers, variables, and functions (for example, addition, subtraction, multiplication, or division, etc.) to state complete mathematical thoughts.
Mathematical expressions can be likened to grammatical phrases. In linguistics, a phrase, which may include an action, but it does not make a complete sentence without being combined with other phrases.
Data:1. (4.3x10^6).(9.8x10^-4)
2. (2.9x10^7)-(1.6x10^–9)
3. (4.7 x 10^3). (8.6 x 10^-7)
________________
(3.8 x 10^-4). (6.1 x 10^2)
4. (4.9x10^3).(74x10^–6)
5. (3.9 x 10^5). (8.7 x 10^-3)
_________________
(3.7 x 10^-5). (2.9 x 10^8)
Thus, the arrangement of the solutions of the mathematical expressions from least to greatest according to their values in scientific notation is 3, 4, 2, 5, and 1.
Learn more about mathematical expressions at https://brainly.com/question/1852123
please help me i can give brainliest!
If the mean and the median of a set of data is 25, is the data skewed left, skewed right, or symmetrical.
Answer:
skewed left
Step-by-step explanation:
Uppose you have a bag of marbles and of the marbles are . If you choose one without looking, the probability you choose marble is
. How can you write this probability as a decimal? Write this probability as a decimal. Use a word or phrase to describe this probability.
How do you change the fraction to a decimal?
A. Multiply the numerator and denominator by .
B. Divide the denominator by the numerator.
C Divide the numerator by the denominator..
D. Multiply the numerator by the denominator.
Graph the image of square CDEF after a dilation with a scale factor of 2, centered at the
origin.
pls help lol
Answer:
Image attached
Step-by-step explanation:
Origin looks to be (0, -1), so move each point out by 2
Han has to build the figure below, which will serve as a counterweight, for his robotics project. Find the VOLUME of the finished object assuming it is empty inside.
Given:
A figure of a robotics project.
To find:
The volume of the finished object assuming it is empty inside.
Solution:
The given figure contains a triangular prism and a cuboid.
The dimensions of the cuboid are 6 cm, 8 cm and 5 cm. So, the volume of the cuboid is:
[tex]V_1=length\times width\times height[/tex]
[tex]V_1=6\times 8\times 5[/tex]
[tex]V_1=240[/tex]
So, the volume of the cuboid is 240 cubic cm.
The area of a triangle is:
[tex]Area=\dfrac{1}{2}\times base\times height[/tex]
So, the area of the base of the triangular prism whose base is 8 cm and height 4 cm, is:
[tex]B=\dfrac{1}{2}\times 8\times 4[/tex]
[tex]B=16[/tex]
The volume of a triangular prism is:
[tex]V_2=Bh[/tex]
Where, B is the base area and h is the height of the prism.
The base area of the triangular prism is 16 square cm and the height is 5 cm. So, the volume of a triangular prism is:
[tex]V_2=16(5)[/tex]
[tex]V_2=80[/tex]
Now, the volume of the given figure is:
[tex]V=V_1+V_2[/tex]
[tex]V=240+80[/tex]
[tex]V=320[/tex]
Therefore, the volume of the finished object is 320 cubic cm.
A rectangular prism measures 8 inches in width, 12 inches in length, and 4 inches in height. What is the surface area of the prism?
Answer:
352
Step-by-step explanation:
Simply you would just add all the side areas together. Since it is a rectangular prism, there are six sides with parallel sides. You have 8 inches as the width x2, 12 inches in length x2, and 4 inches in height x2. Height is 4, so you would multiply that with the side length of 12 getting 48 and since there are 2, it would be 96. Then again multiply the height with the width of 8 inches to get the area of 32 and since there are two of those it would equal 64. Lastly you have length and the width so multiply 8 and 12 to get 96. There are also two of those so you would have 192. In total, you have 96, 64, and 192 so together this would be 352. Your surface area is 352.
PLEASE ASAP ILL GIVE BRAINLIEST.
Answer:
Applied force
Step-by-step explanation:
Applied force is a force that is applied to an object by another person or object. e.g. the force applied when Kim pushes the box
Normal force is the force exerted on an object that is in contact with another object that is stable e.g.
Gravitational force is the force attracting objects of mass
Friction force is the force that opposes motion when the surface of one object comes in contact with that of another object
Calculate the correct answer.
17x - 3 = 48
Answer: x = 3
Step-by-step explanation:
Simplifying
17x + -3 = 48
Reorder the terms:
-3 + 17x = 48
Solving
-3 + 17x = 48
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '3' to each side of the equation.
-3 + 3 + 17x = 48 + 3
Combine like terms: -3 + 3 = 0
0 + 17x = 48 + 3
17x = 48 + 3
Combine like terms: 48 + 3 = 51
17x = 51
Divide each side by '17'.
x = 3
Simplifying
x = 3
A. 2miles
B.200 miles
C.6 miles
Please help
Answer:
The answer to this is B. :D
can someone please help me?
I need help ASAP. Last Assignment for this class.
The center of a Ferris wheel is 55 feet above the ground. The Ferris wheel completes one revolution every 40 seconds. The distance between the lowest and highest points of the Ferris wheel is 100 feet. A trigonometric function models the height of the seat that starts closest to the ground when the wheel begins moving.
(a) What is the period of the function?
(b) What is the amplitude of the function?
(c) What is the midline of the function?
(d) Sketch the first two periods of the graph of the function.
Plot and label the key points of the graph. Label each axis with an appropriate scale.
Answer:
a squared plus b squared equals c squared
Step-by-step explanation the answer either your in for a bumpy ride
4 time 3=12
Answer:
The answer is CStep-by-step explanation:
For what value of m inequality is always true mx²+3mx+2>0?
Answer:
Step-by-step explanation:
Helpppppppppppppppppppppp
Answer:
the answer is 59 because you have to simplify no that's the answer
Caleb bought groceries for $68.48, including sales tax. If sales tax was 7%, how much was the groceries before tax?
pls help me
Answer:
$64.00
Step-by-step explanation:
Let the amount for the groceries before tax be Y
If the cost inclusive of tax at 7% is $68.48, then
Y + 7% * Y = $68.48
100%Y + 7%Y = $68.48
107%Y = $68.48
Recall that 107% = 1.07
1.07Y = $68.48,
Divide both sides by 1.07
Y = $68.48/1.07
Y = $64.00
Hence the cost of the groceries before tax is $64
Consider a sequence whose five terms are: 3, 9, 27, 81, 243 Which function ( with domain all integers could used to define and continue this sequence
Answer: a(n)=3^n as an infinite sequence
I do not know whether you've been introduced to series notation yet, though if you haven't, a(n)=3^n pertains to sequences specifically.
a(n) = 3^n = {3^1, 3^2, 3^3, 3^4, 3^5...}
Which equals 3^n = {3, 9, 27, 81, 243...}
In a school of 600 students, there are seven times as many right-handed pupils as left-handed pupils. How many pupils are right-handed?
Answer:
About 516 students are right handed.
Step-by-step explanation:
Divide 600 by 7 to get 85.7143. Round up to 86. Multiply times 6.
Answer:
I'll setup the problem and leave you to solve it
Step-by-step explanation:
L = number of left-handed students
R = number of right-handed students
you have 2 equations
L + R = 600 (1)
R = 7 x L (2)
solve for L in equation 1
L = 600 - R
substitute L in equation 2
R = 7(600 -R)
multiplying and gathering like terms
8R= 4200
solve for R and you have your answer
Isabella has already baked 4 pies, and she can bake 2 pies with each additional cup of sugar she buys. Write an equation that shows the relationship between the additional cups of sugar x and the number of pies y.
Answer:
It would be y = 2x+4
Step-by-step explanation:
This is because Isabella has started with 4 baked pies and is gaining additional pies with in amounts of 2 pies.
With this, 4 would be by itself and 2 would be attached to the variable x for the unknown amount of additional pies.
Lastly, you would have this all equaling y, as y is the total amount of pies.
Help Or Else I wiLl TrOw YoU INto A ToLiet
Answer:
n o
Step-by-step explanation:
I refuse to help. punish me and put me in the toilet
jk lol
Answer:
i throw u in a toilet
Step-by-step explanation:
now u in a toilet
On a map, 1 inch equals 15 miles. Two cities are 5 inches apart on the map. What is the actual distance between the cities? The actual distance between the cities is miles.
Answer:
75 miles
Step-by-step explanation:
You have to just multiply 15 by 5.
1*5 inches=15*5 miles
PLEASE HELP 5 of 5
A, B & C form a triangle where Z BAC = 90°,
AB = 2.6 mm and CA = 14.2 mm
Find the length of BC, giving your answer rounded to 1 DP.
BC =
mm
PLEASE HELP
Answer:
BC ≈ 14.4 mm
Step-by-step explanation:
Using Pythagoras' identity in the right triangle
BC² = AB² + AC² = 2.6² + 14.2² = 6.76 + 201.64 = 208.4
Take the square root of both sides
BC = [tex]\sqrt{208.4}[/tex] ≈14.4 mm ( to 1 dec. place )
4 of 7
June rolls a fair dice 234 times.
How many times would June expect to roll a one?
Answer: 39 times
Step-by-step explanation: A fair dice has 6 sides with each side having a different number between 1 and 6. Therefore, the probability of rolling a 1 is 1/6. To find out how many times June would expect to roll a 1 after rolling the dice 234 times, you must multiply 234 by 1/6 to get the answer of 39.
Multiple Choice
2. Match the graph to the table of values.
The first quadrant of a coordinate plane is shown with four plotted points.The x-axis is titled 'Time in seconds,' and the y-axis is titled 'Height in meters.' The four points resemble a layout similar to a checkmark with the first point located slightly higher than the second point. The second, third, and fourth points follow a linear pattern with a positive slope.
A.
Time (s) Height (m)
1
5
2
10
3
15
4
20
B.
Time (s) Height (m)
1
2
2
3
3
5
4
9
C.
Time (s) Height (m)
1
4
2
3
3
5
4
7
Multiple Choice
Match the graph to the table of values.
The first quadrant of a coordinate plane is shown with four plotted points. The x-axis is titled 'Time in seconds,' and the y-axis is titled 'Height in meters.' The four points start in the lower left corner of the first quadrant and follow a linear pattern with a positive slope.
A.
Time (s) Height (m)
1
5
2
10
3
15
4
20
B.
Time (s) Height (m)
1
2
2
3
3
5
4
9
C.
Time (s) Height (m)
1
4
2
3
3
5
4
7
100 POINTS FOR ANSWERS AND EXPLANATION! PLS I NEED HELP ASAP! Thanks!
Answer:
Step-by-step explanation:
Choice A: t=1, h=5; t=2, h=10
Choice B: t=1, h=2; t=2, h=3
Choice C: t=1, h=4; t=2, h=3
ans is C as it fits the descriptions
Choice A: t=1, h=5; t=2, h=10; t=3, h=15
Choice B: t=1, h=2; t=2, h=3; t=3, h=5 <== non-linear
Choice C: t=1, h=4; t=2, h=3; t=3, h=5 <== non-linear
ans is A as it fits the descriptions
Please help me on this
Answer:
12. C
13. B
14. B
Step-by-step explanation:
12 - length of ramp = hypotenuse
given the angle 20, we have hypotenuse and opposite, so we use sin
sin 20* = 10/r
13- tan 46 = x/11, x = 11(tan46) = 11.4
14- cos 46 = 12/x = 17.3
give an example when the mean and median might have the same value
10,20,30,40,50
Here, 30 is both mean and median.
Answer:
1,2,3.
Step-by-step explanation:
It's simple. But here's the math.
1+2+3÷3=2
And the median of the number is 2.
What is -(-7)
GIVING BRAINLIEST
Step-by-step explanation:
answer is +7
hope it helps you