Answers
Answer:
Quadratic Equations! Yes!
Step-by-step explanation:
Now, there are three methods to solving this:
1.Quadratic Formula
2.Factoring
3. Completing the square
Now, Based on the answers, I think it would be better if we used Quadratic Formula, as you cannot get the answer easily with factoring, and I'm a bit rusty on completing the square.
So, Quadratic Formula! To solve it using this method, we have to find x using this: [tex]x=\frac{-b+-\sqrt{b^{2} -4ac} }{2a}[/tex](the +- before the square root means it could be both positive or negative)
Where a, b are coefficients and c is a term(in a quadratic equation form: [tex]ax^{2} +bx+c=0[/tex])
So, we just have to input the stuff from our equation into the formula!
[tex]x=\frac{-4+-\sqrt{32} }{2}[/tex]
Now, we can simplify the square root of 32 into 4 times the square root of 2
[tex]x=\frac{-4+-4\sqrt{2} }{2}[/tex]
And, we can divide 2 from it all!
[tex]x=-2+-2\sqrt{2}[/tex]
So, there you have it! The Answer is C, or 3.
Hope this helps!
Related Questions
Please help. will mark brainliest if its right.180-x=3(90-x)
Answers
Solve for x. x/7=-3
-21
-10
4
21
Answers
Answer:
D 21
Step-by-step explanation: x/7 = 3
isolate x by multiplyig both sides by 7: (7)(x/7) = (3)(7)
x = 21
The ratio of men to women in a sports league is 46 to 54. What percent of the sports league are women?
A. 5%
B. 10%
C. 20%
D. 25%
Answers
Use the net to calculate the surface area.all measurements are in 1 cm squared.
PLEASE HELP ME!!!
Answers
Answer:
0.999999032256
Step-by-step explanation:
Complete the sentence below.
If the sides of a triangle are 3, 4, and 5, then, to the nearest degree, the measure of the smallest angle of the triangle is ____°.
Answers
For a 3,4,5 triangle the smallest angle measure would be 45 degrees.
Hope this helps !
Answer:
45˚
Step-by-step explanation:
the 3,4,5 triangle is the basic right triangle. The 3 and for angle worth is 45˚ and the 5 is the 90˚
PLS I NEED HELP
A circular field is set into a square with an 800 m side length. Estimate the field's area.
A square where the vertical distance is labeled 800 meters.
About 5,000 m2
About 50,000 m2
About 500,000 m2
About 5,000,000 m2
About 50,000,000 m2
Answers
Answer:
c = 500,000
This is 6 digit number with 5 zero's.
We just multiply the radius ^2 by pi
D = 800m R = 400
R^2 = 400 x 400 = 160000
A = 160000π = 502654.824574
We estimate from 160000 and just count the 0's on multiplication as long as the 10's don't change in that estimation.
we can show the workings as the counting loops under the 6 and 0's of 160000. = 5 units+ 1.
= 500,000 m^2
1 [- - - - -} = 500000
BD is the perpendicular bisector of triangle ABC , and BD is a shared side of triangle ABD and triangle CBD . Which of the following must be congruent in order to verify that triangle ABD cong triangle CBD
Answers
Answer:
Option D is correct answer AD and CD are congruent
Step-by-step explanation:
because BD is bisector of AC
so AD = CD
Answer:
Yes option D
Step-by-step explanation:
If you measure AD and DC they will be the same length
Data is another word for fraction.
True
False
Answers
Answer: False
Step-by-step explanation:
Someone wanna help on this one? The Chain Reaction bike shop is running a special that allows a family to rent all the bikes and equipment they need for an hourly rate and a nonrefundable $15 deposit. The Morales family can rent bikes for 2 hours for $57. The cost of the rental can be represented by a linear function where x represents the number of hours the bikes are rented and y represents the total cost of the rental. What is the equation here and what are the slope and y-intercept?
Answers
Answer:
y=21x+15, where 21 is the hourly rate and the slope, 15 is the non-refundable deposit, and y is the total amount payedStep-by-step explanation:
the slope is the hourly rate, the y int is the deposit of 15$
thus,
to find the slope, we can use the equation:
57=m*2+15
42=2m
m=42/2
m=21
thus, the whole equation is:
y=21x+15, where 21 is the hourly rate and the slope, 15 is the non-refundable deposit, and y is the total amount payed
you don't have to answer number 15. but pls answer the rest!
BEST ANSWER GETS BRAINLESST AND FOLLOW ASP HURRY!!
Answers
Answer:
Step-by-step explanation:
13. 2,300mg > 2g
14. 3kg = 3,000g
16. 4120mg = 4.12g
17. 75g < 800mg
How can AABC be mapped to AXYZ?
First, translate vertex A to vertex Oy
Next,
AABC to align the sides and angles.
Answers
Answer:
Step-by-step explanation:
there you go
First vertex A to be translate to vertex X and than rotate ΔABC to align the sides and angles.
How can AABC be mapped to AXYZ?
What are Similar triangles?Similar triangles, are those triangles which have similar properties ,i.e. angles and proportionality of sides.
To obtain the mapping of triangle to relative similar triangle.
we have to make it congruent triangle first. by rotating or translating.
For given conditions First vertex A to be translate to vertex X and than rotate ΔABC to align the sides and angles.
Thus the condition now fulfilled.
Learn more about similar triangles here:
brainly.com/question/25882965
#SPJ2
How do you translate "the sum of 5 and the product of a number times 3"?
Answers
Answer:
5+ 3x
Step-by-step explanation:
2x^2+12x-14=0 by completing the square
Answers
First factor 2 from the quadratic:
[tex]2x^2+12x-14=2(x^2+6x-7)[/tex]
Now complete the square:
[tex]x^2+6x-7=x^2+6x+9-16=(x+3)^2-16[/tex]
So we have
[tex]2x^2+12x-14=0\implies2(x+3)^2-32=0[/tex]
[tex]\implies2(x+3)^2=32[/tex]
Solve for x:
[tex](x+3)^2=\dfrac{32}2=16[/tex]
[tex]x+3=\pm\sqrt{16}=\pm4[/tex]
[tex]\implies x=-3+4=1\text{ OR }x=-3-4=-7[/tex]
and so the third option is correct.
The Bilbo Company plans to manufacture decals for children's lunchboxes. Each decal
would cover one rectangular side of a lunchbox, as shown in the figure above. Which of
the following expressions gives the area, in square inches, of the decal, in terms of a and
Answers
Answer: 1 -2ax²+2x-ax
Step-by-step explanation:
Hi, to answer this question we have to apply the next formula:
Area of a rectangle: length x width
Replacing with the values given:
A = (2x+1) (1-ax)
A = [2x(1)] + [2x(-ax)] +[ 1(1)]+ [1 (-ax)]
A = 2x- 2ax² +1- ax
A = 1 -2ax²+2x-ax
In conclusion, the correct option is 1 -2ax²+2x-ax
Feel free to ask for more if needed or if you did not understand something.
Find the surface area of the regular pyramid. Write your answer as a decimal. (solved)
Answers
Answer:
The total surface area is 145.12 sq.m.
Step-by-step explanation:
We are supposed to find the surface area of given figure
Length of rectangular part = 15 m
Breadth of rectangular part = 8 m
Area of rectangular part =[tex]Length \times Breadth = 15 \times 8 = 120 sq.m.[/tex]
Diameter of semi circle = 8 m
Radius of semicircle = [tex]\frac{8}{2}=4 m[/tex]
Area of semicircle = [tex]\frac{\pi r^2 }{2}=\frac{3.14 \times 4^2}{2}=25.12 sq.m.[/tex]
Total surface area = 120+25.12=145.12 sq.m.
Hence The total surface area is 145.12 sq.m.
What is the best estimate of the measure of the angle shown?
Answers
Answer:
65
Step-by-step explanation:
Answer:
65
Step-by-step explanation:
We know it is less than a right angle or 90 degrees It is bigger than 1/2 of a right angle or bigger than 45 degrees
The best estimate is 65 degrees
James wants to build a wooden planter box for his garden with a volume of 100 cubic feet. If he constructed the planter with a height of 2 feet and a width of 5 feet, what should the length of the planter be, in feet?
Answers
Answer:
The length of the box is 10 feet.
Step-by-step explanation:
You have to work backwards to find volume, so just divide the volume (100) by the height (2) then divide that by the width (5) and you get your answer, 10
What’s (5-4)(1)
Show work
Give good explanation
Answers
Answer:
1
Step-by-step explanation:
5-4=1 and assuming that by (1) you or your teacher means times 1 so 1 times 1 is one
Copy and complete. QUICKLY PLEASE
Answers
Answer:
this site is trash
Step-by-step explanation:
Answer:
bro there is no picture
Step-by-step explanation:
I need help ASAP!!
Answers
Answer:
a d and e
Step-by-step explanation:
none
Answer:
answers are a,d,e
Step-by-step explanation:
8=5+3
12x5=60
12+5=17
5
Select the correct answer.
Which financial term refers to a reduction in the price of a product in order to obtain a response from consumers?
ОА
loan
OB.
discount
OC.
interest
OD
investment
Answers
If you're given a discount it means an amount of money has been deducted from the original price of a product to attract you,the customer.
Answer:
Discount.
Explanation:
I took the test.
Please Vote Me Brainliest. Thank You.
The governor of state A earns $49,610 more than the governor of state B. If the total of their salaries is $282,720, find the salaries of each. The governor of state A earns $?, and the governor of state B earns $?.
Answers
Answer:
The governor of state A earns $ 166,165, and the governor of state B earns $ 116,555
Step-by-step explanation:
the governor of state A salary = x+ 49610
the governor of state B salary = x
together : 282720 = x+49610 +x
282720 = 2x + 49610 subtract 49610 from both sides
282720-49610 = 2x
233110 = 2x divide by 2
x = 116555
plug in x in the governor of state A salary = x+ 49610 = 116555 + 49610 = 166,165
Link is coloring a triforce, which consists of four equilateral triangles and is depicted below. He has three colors to use: gold, black, and green. So that it remains recognizable, he doesn't want to color any two triangles the same color if they share a side. How many different ways can he color the triforce? (Two colorings that differ by rotation are considered distinct.)
Answers
Answer:
.
Step-by-step explanation:
.
A store sells six-packs of soda for $3.00 a six pack. If this relationship is graphed with the number of cans of soda on the x-axis and the cost on the y-axis, what is the slope of the graph in dollars per can?
A 3
B 2
C 3/4
D 1/2
Answers
Answer:
D: 1/2
Step-by-step explanation:
3/6 is .5 which means each can is .50 cents
Ron randomly pulls a pen out of a box that contains 1 red, 2 black, and 3 blue pens. He does
this 4 times, replacing the pen each time, but pulls out a blue pen only 1 time. Ron concludes
that the observed frequency of pulling a blue pen will eventually be closer to the expected
frequency based on the theoretical probability of pulling a blue pen. Which reasoning best
supports his conclusion?
Answers
Answer:
The more experiments that are done, the more the theoretical trend is marked
Step-by-step explanation:
The first thing is to define each probability,
-Theoretical probability is a proportion that expresses the ways to be successful in the total events of an experiment.
-Experimental probability is the proportion of the proposed result for the number of experimental attempts.
Based on this, the reason that best supports this is that the more the experiment is repeated, the closer the experimental probability gets to the theoretical one, since as the number of attempts increases, it tends to go more to what theoretically is what would happen.
Which of the following is a correct interpretation of the expression 1+6
The number that is 666 to the left of 111 on the number line
(Choice B)
B
The number that is 666 to the right of 111 on the number line
(Choice C)
C
The number that is 111 to the left of -6−6minus, 6 on the number line
(Choice D)
D
The number that is 111 to the right of -6−6minus, 6 on the number line
Answers
Answer:
D
Step-by-step explanation:
Suppose you have one pyramid with a base that is 10 meters long and 10 meters wide with a slant that is 15 meters. Now, if the length of the base is
Answers
Answer:
The difference between area of pyramids is 125 sq.m.
Step-by-step explanation:
Length of base = 10m
Breadth of base = 10 m
Slant height = 15 m
Area of pyramid = Area of 5 bases
Area of pyramid = [tex]\frac{1}{2} \times 10 \times 15+\frac{1}{2} \times 10 \times 15+\frac{1}{2} \times 10 \times 15+\frac{1}{2} \times 10 \times 15+10 \times 10[/tex]
Area of pyramid = 400 sq.m.
Now the length of base is increased to 15
Length of base = 15m
Breadth of base = 10 m
Slant height = 15 m
Area of pyramid = Area of 5 bases
Area of pyramid =[tex]\frac{1}{2} \times 15 \times 15+\frac{1}{2} \times 15 \times 15+\frac{1}{2} \times 10 \times 15+\frac{1}{2} \times 10 \times 15+10 \times 10[/tex]
Area of new pyramid = 525 sq.m.
Difference between area of pyramids=525 sq.m. - 400 sq.,. = 125 sq.m.
Hence The difference between area of pyramids is 125 sq.m.
someone help plss- simplify the expression
Answers
Answer:
27 x^21
Step-by-step explanation:
(3x^7)^3
We know that (ab)^c = a^c b^c
3^3 x^7^3
27 x^7^3
We know that a^b^c = a^(b*c)
27 x^(7*3)
27 x^21
HELP PLS ASAP WILL MARK BRAINLIEST
Answers
Answer:
B. 4
Step-by-step explanation:
Since d=√[7-3]2+[8-8]2
Help!
1.1 × 10 to the power of 5 + 4 × 10 to the power of 8 = (answer) × 10 (answer)
Answers
Answer:
[tex] 4.0011 \times {10}^{8} [/tex]
Step-by-step explanation:
[tex]1.1 \times {10}^{5} + 4 \times {10}^{8} \\ \\ = 1.1 \times {10}^{5} + 4000 \times {10}^{5} \\ \\ =4001.1 \times {10}^{5} \\ \\ = 4.0011 \times {10}^{8} [/tex]
