Answer:
[tex]{ \rm{3 {x}^{2} + 2x - 4 = 0 }}[/tex]
• let's use the quadratic formular to solve the quadratic equation given.
• Considering general quadratic equation; ax² + bx + c = 0
• therefore;
[tex]{ \tt{x = \frac{ - b \pm \sqrt{ {b}^{2} - 4ac } }{2a} }} \\ [/tex]
a is 3b is 2c is -4• substitute following the mathematical operation rules:
[tex]{ \rm{x = \frac{ - 2 \pm \sqrt{ {2}^{2} - (4 \times 3 \times - 4) } }{(2 \times 3)} }} \\ \\ { \rm{x = \frac{ - 2 \pm52}{6} }} \\ [/tex]
• split the values:
[tex]{ \rm{either \: \{x = \frac{ - 2 + \sqrt{52} }{6} \} \: \: or \: \: \{x = \frac{ - 2 - \sqrt{52} }{6} \} }} \\ \\ { \rm{either \: \{x = 0.87 \} \: \: or \: \: \{x = - 1.54 \}}}[/tex]
How far are Columbia and Charleston
Answer:
116 miles (186 km)
Kinetic energy can be calculated using the formula KE=1/2mv²,
where m= mass and v= velocity.
Calculate the kinetic energy of an object with mass 5kg moving at a velocity of 4m/s.
Answer:
40J
Step-by-step explanation:
YOU say 1/2 x 5 x4² ( 4 is velocity. 5 is mass )
it becomes 1/2 x5 x16
then it becomes 1/2 x 80
half of 80 is 40
the answer is then 40 JUOLES
Find the missing side of each triangle. Round your answers to the nearest tenth if necessary.
(Please Show your work)
___________
[tex] \: [/tex]
[tex]\boxed{ \rm{answer \: by \: { \boxed{ \rm{☆HayabusaBrainly}}}}}[/tex]
Step by step :x² = (10,6)² + (6,1)²
x² = 112,36 + 37,21
x² = 149,57
x = 12,22mi✔
There are 20 triangles and 4 circles. What is the simplest ratio of circles to tota
shapes?
Answer:
4 to 20
Step-by-step explanation:
Answer:
20+4=24
There are 4 circles.
4:24
If you simplify that, it is 1:6.
1:6 is the answer simplified.
GUYS, I NEED HELP PLEASE!!!
if f(x)=10 find x
and there is no x-intercept. y= 10
Answer:
?????????????????????????????????????????????????????????????????????
g(3)=?
i need to use the graph to find what that is
Pls help and Find the length
The question is wrong because as the given angle is 90, the hypotenuse(11cm) should be greater than 16cm
Answer:
cant solve
Step-by-step explanation:
(sorry im not good at english) because there is no right triagle in which the length of the side of the right angle is greater than the length of the hypotenuse.
If the measure of angle 2 is 65 degrees, find the measure of angle one .
Answer:
angle 1 = 115°
Step-by-step explanation:
[tex]\sf{}[/tex]
hope it's helpful to you ☺️
the volume of a cube is 8in3 how long is each side
Please help me solve this
Answer:
uhhhhhhhhhhhhhhhhh
Step-by-step explanation:
i wish i knew
Combing like terms 7 th grade
Answer:
Basically you just add the like terms together. Like terms are terms that have the same power, like 1, or 2 to the second power. x has a power of zero.
Step-by-step explanation:
Brainliest pls, ty
I need the right answer for this ASAP NO LINKS!!!
Answer:
15 + 18
Step-by-step explanation:
Use the distributive property.
3(5 + 6) = 3 × 5 + 3 × 6 = 15 + 18
Which is the solution to 2x - 6 + 4 = 14?
Help please I tried but I don’t think i got the right answer
Answer:
1. 175
2. 362.86
3. 1,960
Write let statements for each expression, then write an equation and SOLVE. (worth 10 points)
The sum of four consecutive integers is 26. What are the four integers?
Answer:
the answer to your question is 5+6+7+8
Answer:
ok
Step-by-step explanation:
The four consecutive numbers are 5, 6, 7, 8
The smallest number is 5.
Thus their sums equal to 26.
Can someone help me please
i will give you brainiest
Answer:
answer is D Add all the numbers that represent them x and do the same with the others then multiply by 4
Joseph traveled from Boston to Framingham at 50mph and then back to Boston at 40mph. What was Josephs's average speed on the round trip?
Plz help
Answer:
45mph
Step-by-step explanation:
To find the average speed, we must add together all of the different speeds and divide by the quantity of them (assuming all of them are equal in time). In this case we have 2: 50 and 40.
[tex]50+40=90[/tex].
Then we divide by 2, since there were two segments of equal length
[tex]\frac{90}{2} =45[/tex]
45mph
Answer:
44.44
Step-by-step explanation:
Got the answer
x^2-3y^2(3x-2y)^2-(2x-3y)^2 phân tích thành nhân tử
Answer:
-3(9y^2-12y^3+4y^4+x^2 - 4xy+3y^2)
Step-by-step explanation:
Which equation could be represented by the number line?
A. -3+(-4) = -7
B. 7+ (-6) = 1
C. 4+(-7) = -3
D. -5 + 7 = 2
eight hundred tickets were sold for a theater production
Answer:
280 student tickets
520 adult tickets
Explanation:
I'm guessing this is the question you meant to ask:
Eight hundred tickets were sold for a movie production and the receipts for the performance wear $8600. The tickets for adults and students sold for $12.50 and $7.50, respectively. How many of each ticket were sold?
3. f(x) = – 2 x + 1
101
od
-10-0
6
8 10
8
-10
x-intercept:
y-intercept:
zero:
slope:
Answer:
The quadratic x2 − 5x + 6 factors as (x − 2)(x − 3). Hence the equation x2 − 5x + 6 = 0
has solutions x = 2 and x = 3.
Similarly we can factor the cubic x3 − 6x2 + 11x − 6 as (x − 1)(x − 2)(x − 3), which enables us to show that the solutions of x3 − 6x2 + 11x − 6 = 0 are x = 1, x = 2 or x = 3. In this module we will see how to arrive at this factorisation.
Polynomials in many respects behave like whole numbers or the integers. We can add, subtract and multiply two or more polynomials together to obtain another polynomial. Just as we can divide one whole number by another, producing a quotient and remainder, we can divide one polynomial by another and obtain a quotient and remainder, which are also polynomials.
A quadratic equation of the form ax2 + bx + c has either 0, 1 or 2 solutions, depending on whether the discriminant is negative, zero or positive. The number of solutions of the this equation assisted us in drawing the graph of the quadratic function y = ax2 + bx + c. Similarly, information about the roots of a polynomial equation enables us to give a rough sketch of the corresponding polynomial function.
As well as being intrinsically interesting objects, polynomials have important applications in the real world. One such application to error-correcting codes is discussed in the Appendix to this module.
Helppppp plsss!!!!!!!
The numbers are measurements of radius diameter and circumference of circles A and B. Circle A is smaller than Circle B which number belongs to which quantity? 2.5, 5, 7.6, 15.2, 15.7, 47.7
Step-by-step explanation:
a diameter is always twice the radius.
the only pairs in this list, where one number is twice the other, is :
2.5 and 5
7.6 and 15.2
so,
2.5 is the radius of A
5 is the diameter of A
7.6 is the radius of B
15.2 is the diameter of B
15.7 is then the circumference of A (as the smaller of the remaining 2 numbers).
47.7 is the circumference of B.
this is also proven by the formula for the circumference of a circle : c = 2×pi×r
1 7/10 subtracted from 2 1/10
-2/5 or -0.4
Hope this helps!
triangle LMN with the vertices L(6,6), M(8,8), N(8,3)a) reflection in the line x=5b)270 counterclockwise rotation about the originL'M'N'
Answer:
I don’t know if it right but I got
L(6,-6)
M(8,-8)
N(3,-8)
Step-by-step explanation:
I did this because my teacher show me if it’s 90 counterclockwise is (-y,x) 180 counterclockwise (-x,-y) and if it 270 counterclockwise (x,y) and that what I got oh and the x=5 a reflect x in the 5
a swimmer can do 4 laps in 2 minutes and 30 seconds how long does it take him to do one lap
Answer:
60 seconds make one minute. 2 minutes 30 seconds is 150 seconds
to find time per lap is 150 divided by 4 which will give you 37,5 second per lap
the answer is 37,5 seconds per lap.
WILL MARK BEST AND FIRST CORRECT ANSWER THE BRAINLIEST
Kathryn babysits for extra money. She uses the function f(x) = 10x + 18 to calculate her earnings each day, where x represents the number of children she babysits. What is the domain of the function?
A.
{28, 38, 48, . . .}
B.
all positive integers
C.
{18, 28, 38, . . .}
D.
all integers
Answer:
C I'm pretty sure yeah it's c
vw^{2}+y=x (solve for w)
Answer:
w=[tex]\sqrt{\frac{x-y}{v}[/tex]
Step-by-step explanation:
Jim can travel at most 240 miles before he needs to stop for fuel. On a road trip, Jim drives a consistent 70 miles per hour for h hours, and he has already driven 100 miles. Model Jim's situation with an inequality, and solve for h. What can be interpreted about the solution to the inequality? A. Jim has at most two hours before he must stop for fuel. B. Jim has at least two hours before he must stop for fuel. C. Jim has at most four hours before he must stop for fuel. D. Jim has at least four hours before he must stop for fuel.
Answer:
c
Step-by-step explanation:
did this test and got a 100
Find the measure of the angle indicated.
45°
A) 135°
C) 125°
B) 115°
D) 50°