Answer:
Step-by-step explanation:
[tex]3x^2 -8x +5 = 5x^2\\\\5x^2 - 3x^2 + 8x -5 =0\\\\2x^2 +8x -5 = 0\\\\[/tex]
a = 2, b = 8, c = -5
[tex]x = \frac{-b \pm \sqrt{b^2 -4ac} }{2a}\\\\x = \frac{-8 \pm \sqrt{8^2 - ( 4 \times 2 \times (-5))} }{2 \times 2}\\\\x = \frac{-8 \pm \sqrt{64 +40} }{4}\\\\x = \frac{-8 + \sqrt{64 +40} }{4} \ , \ x = \frac{-8 - \sqrt{64 +40} }{4}\\\\x = \frac{-8 + \sqrt{104} }{4} \ , \ x = \frac{-8 - \sqrt{104} }{4}\\\\x = \frac{-8 + \sqrt{4 \times 26} }{4} \ , \ x = \frac{-8 - \sqrt{4 \times 26} }{4}\\\\x = \frac{-8 +2 \sqrt{26} }{4} \ , \ x = \frac{-8 - 2\sqrt{26} }{4}\\\\[/tex]
[tex]x = \frac{-4 + \sqrt{26} }{2} \ , \ x = \frac{-4 - \sqrt{26} }{2}[/tex]
(2,5) I having a moment plzzz help
Answer:
Answer: A
Step-by-step explanation:
X comes first then Y. so go right 2 since its positive, then go up 5 since its also a positive. then you get your answer
Step-by-step explanation:
A 2 (x horizontal line), 5 (y vertical line)
What is the slope and y-intercept of this equation?
y=2-9x
m=
b=
Answer:
Slope (m) is the number being multiplied by x (make sure you include the sign in front of it).
y- intercept (b) is the number other than the x
Step-by-step explanation:
Answer:
The slope is -9 and the y intercept is 2
Step-by-step explanation:
Write the equation in slope intercept form
y= mx+b where m is the slope and b is the y intercept
y = -9x+2
The slope is -9 and the y intercept is 2
975 toffees are to be distributed among 23 children. Estimate the numbers of toffees that each child will get in nearest tens.
Answer:
40
Step-by-step explanation:
Total number of toffees = 975
Total number of children = 23
Estimate the numbers of toffees that each child will get in nearest tens.
Number of toffees each child get = Total number of toffees / Total number of children
= 975 / 23
= 42.391304347826
Approximately,
Number of toffees each child get = 40 to the nearest tens
can i get some help?
Answer:
beke nemen sagot
25 = -3 (c + 2 ) + 2c
Answer:
c = -31
Step-by-step explanation:
25=-3c-6+2c
25+6=-c
31=-c
c=-31
Answer:
Step-by-step explanation:
25=-3(c+2)+2c
25=-3c-6+2c
25=-c+6
25-6=-c
19=-c
-19=c
Three lakh fourteen thousand five hundred thirty-two write numbers placing commas according to indian system
Answer:
Rs. 3,14,532
Step-by-step explanation:
A tin has a radius of 3cm anf height 6cm. Find the volume, in litres of the liquid that will fill the tin to capacity, correct to 2 decimal places
Answer:
The capacity of tin is 0.17 liter.
Step-by-step explanation:
radius, r = 3 cm
height, h = 6 cm
The capacity of the tin is given by
[tex]V =\pi r^2 h\\\\V =3.14 \times 3\times 3\times 6\\\\V = 169.56 cm^3[/tex]
Now
1000 cubic cm = 1 liter
So, the capacity in liter is
V = 0.169 liter = 0.17 liter
What is the value of cos0 ?
Answer:
[tex]\frac{9}{10}[/tex]
Step-by-step explanation:
The Law of Cosines works for any triangle and is given by:
[tex]c^2=a^2+b^2-2ab\cos \gamma[/tex], where [tex]a[/tex], [tex]b[/tex], and [tex]c[/tex] are the sides of the triangle and [tex]\gamma[/tex] is the angle opposite to [tex]c[/tex].
In the given triangle, assign the variables:
[tex]c\implies 10[/tex] [tex]a\implies 10[/tex] [tex]b\implies 18[/tex]Substituting these variables, we have:
[tex]10^2=10^2+18^2-2(10)(18)\cod \cos \gamma,\\100=100+324-360\cdot \cos \gamma,\\100=424-360\cos \gamma,\\-324=-360\cos\gamma,\\\cos \gamma =\frac{-324}{-360}=\boxed{\frac{9}{10}}[/tex]
Determine the value for x in the diagram below when a || b.
1550
a
b
х
t
25°
155°
Oo oo
90°
125°
Answer:
155°
Step-by-step explanation:
x and the angle 155° are identical because they are alternate exterior angles of parallel lines intersected by a transversal.
Answer:
Step-by-step explanation:
the value of x is 155 degree because the relation between x and 155 degree is that they are alternate exterior angle and alternate exterior angle are equal.
Rhian sat a math test and an english test.In the maths test she scored 14 out of 17.In the english test she scored 31 out of 39. In which test did she score better
Answer:
The maths test
Step-by-step explanation:
If you convert both of the results to percentage,
Maths:
[tex]\frac{14}{17} \times 100 = 82\%[/tex]
English:
[tex] \frac{31}{39} \times 100 = 79\%[/tex]
You'll see that she scored better in the maths test.
A chess player moves a knight from the location (3, 2) to (5, 1) on a chessboard. If the bottom-left square is labeled (1, 1), the translation made is 2 squares up, 1 square right1 square down, 2 squares left1 square down, 2 squares right2 squares down, 1 square right. If the player moves the knight from (5, 1) to (6, 3), the translation made is 1 square up, 1 square right2 squares up, 1 square right4 squares up, 2 squares right2 squares up, 1 square left.
Answer:
The answer is below
Step-by-step explanation:
Transformation is the movement of a point from its initial location to a new location. Types of transformation are rotation, reflection, dilation and translation.
Translation is the movement of a point either up, down, right or left in the coordinate plane. If a point A(x, y) is moved a units up and b units right, then the new point is at A'(x + b, y + a).
Given that the knight is moved from (3, 2) to (5, 1), hence it is moved 2 squares right and 1 square down.
If the knight is moved from (5, 1) to (6, 3), it is moved 1 square right and 2 squares up.
Please help with this question:
Which number represents the probability of an event that is likely to occur?
A. 0.16
B. 0.03
C. 1.5
D. 0.79
Answer:
D. 0.79
Step-by-step explanation:
The probability of an event is a number between 0 and 1, where, 0 indicates impossibility of the event and 1 indicates certainty. The higher the probability of an event, the more likely it is that the event will occur.
so, the answer is D. 0.79
Answer:
As for the others, probability 0 means that the even't cannot happen, whereas probability 1 means that event is certain. So, the bigger the number, the greater the probability. the greatest number represents the event that is more likely to occur between0 ≤ P(E) ≤ 1.
Given
1.5>0.79>0.16>0.03
So
0.79 is a required answer.
Please help Im really struggling
Which of the following is NOT an example of a random sample?
A. Placing the names of 100 people in the population in a
box and drawing 25 names without looking.
B. Choosing a name at random from the names on a list of 100 people in the population, choosing every 10th person after that, and continuing through the list, returning to the first name chosen
C. Dividing a list of names in a target population into
males and females and randomly selecting a proportional
sample from each group.
D. Choosing the first 50 names on an alphabetical list
of 100 people in the target population.
Answer:
D
Step-by-step explanation:
Because its not randomly selecting
Solve for x.
Use the completing the square method.
x2 + 10x = 6
x2+10x=6
x2+10x-6=0
x=-10+-Square root of [10^2-4×(-6)]/2.1
x=-10+-Square root of 124/2
x=-5+square root of 31 and -5-square root of 31
Answer please i need it
Answer:
A.
Step-by-step explanation:
(23 * 5) represents the total number of 6th graders.
-s represents the number of students who were absent.
(23 * 5) - s represents the number of students in the museum.
I need help with 45 and 48
Answer:
Answer 93
Step-by-step explanation:
f(x)=(41)x
Exponential growth or Exponential decay
Answer:
growth
Step-by-step explanation:
Gary was looking for a new cell phone plan. Company A is offering $50 for the phone and $.20 per minute for data usage. How much would Company A’s phone plan cost if Gary spends on average 200 minutes for data?
Answer:
$90
Step-by-step explanation:
c = 50 + .2m
c = 50 + .2(200)
c = 50 + 40
c = 90
please help!!!Will mark brainlyist if right
Answer:
91.8 m²
Step-by-step explanation:
Bottom circle ([tex]\pi r^2[/tex]):
[tex]\pi[/tex] × 1² = [tex]\pi[/tex]
[tex]\pi[/tex] m²
Curved surface area of cylinder ([tex]2\pi rh[/tex]):
2[tex]\pi[/tex]×1×13 = 26[tex]\pi[/tex] m²
Curved surface area of cone ([tex]\pi rl[/tex], where [tex]l[/tex] is the slant height):
Use Pythagoras for slant height: [tex]\sqrt{2^2 + 1^2}[/tex] = [tex]\sqrt{5}[/tex]
[tex]\pi[/tex]×1×[tex]\sqrt{5}[/tex] = [tex]\pi \sqrt{5}[/tex] m²
Total:
[tex]\pi[/tex] + 26[tex]\pi[/tex] + [tex]\pi \sqrt{5}[/tex] = 91.8 m²
Angles M and N are complementary angles. If angle M is 3x+15 and angle N is 2x+35, what is the measure of angle N?
Use your value of x to find the measure of angle N.
Please help I’m stuck!
Answer:
Step-by-step explanation:
2x+35+3x+15=90(being perpendicular)
5x+50=90
5x=90-50
x=30/5
x=6
Angle N=2x+35
=2*6+35
=12+35
=47 degree
PLSSS HELP!! (Determine the value of x.)
Answer:
X=4
Step-by-step explanation:
(2x-5)+(4x-1)=7x-10
2x-5+4x-1=7x-10
6x-6=7x-10
6x=7x-4
x=4
S
T
R
U
What does R represent?
A. a line segment
B. a point
O c. a line
D. a ray
Mrs. Townsend had 29 feet of fabric.
Step-by-step explanation:
29/8= 3.625
It lies between 3 and 4
Hope this helped!
Answer:
Between 3 and 4 pieces of fabric.
Step-by-step explanation:
29/8 is equal to 3.625, which you can round up to 4 or round down to 3, since they are both the nearest whole numbers to 3.625.
A rectangle is 5 cm longer that it is broad.
Its perimeter is 26 cm. Find the length and
breadth of the rectangle.
Answer:
31cn
Step-by-step explanation:
add 26cn and 5 to get 31 cn
Parallelogram J K L M is shown. Diagonals are drawn from point J to point L and from point K to point M and intersect at point T. The length of line segment M T is 8 y + 18 and the length of line segment T K is 12 y minus 10.
What is the value of y?
1
2
7
8
When Zoe was six-year-old Lulu is twice her age Zoe is 10 years old now how old is Lulu
Answer:
20 years old! Heart it if it was helpful :D
Step-by-step explanation:
Alright! Well Zoe = 6 when Lulu = 12. Zoe is 10 so lulu is now 20.
Answer:
16
Step-by-step explanation:
(please answer with explaining each step)
Question on the image
Answer:
m =10
Step-by-step explanation:
Barry = m
S = m+5 since they are 5 years older
A = m-3 since they are 3 years younger
Add to get the total
m + (m+5) + (m-3) = 32
Combine like terms
3m +2 = 32
Subtract 2 from each side
3m+2-2 = 32-2
3m = 30
Divide by 3
3m/3 = 30/3
m =10
Side AC corresponds to side
.
Angle BAC corresponds to angle
Answer:
???
Step-by-step explanation:
Where's the image?
△ABC is reflected across the y-axis on a coordinate plane, resulting in △A′B′C′. If the measure of ∠A is 50 degrees, what is the measure of ∠A′?
Answer:
Reflections across the line y = x
A reflection across the line y = x switches the x and y-coordinates of all the points in a figure such that (x, y) becomes (y, x). Triangle ABC is reflected across the line y = x to form triangle DEF. Triangle ABC has vertices A (-2, 2), B (-6, 5) and C (-3, 6).
PLEASE ANSWER THISSS
AAAAAAAAAAAAAAA
Answer:
147
Step-by-step explanation:
E = greatest common factor of 22 and 30 = 2
F = least common multiple of 3 and 8 = 24
G = 3 * (7 + 10) = G + 30 = 81
3 * 7 + 3 * 10 = G + 30
21 + 30 = G + 30
51 = G + 30
G = 81
H = 5 * (3 + H) = 15 + 45 = 40
5 * 3 + 5 * H = 15 + 45
15 + 5 * H = 60
20 * H = 60
H = 60 - 20
H = 40
E = 2 + F = 24 + G = 81 + H = 40
2 + 24 + 81 + 40 = 147
This was fun lol
