Answers
Answer:
C and D
[tex] {x}^{2} - 5x + 2 = 0 \\ x = \frac{5± \sqrt{17} }{2} [/tex]
Related Questions
Write an equation in slope-intercept form of
the line that passes through (-6,4) and
(-1,2).
Answers
Answer:
Step-by-step explanation:
(-6 , 4) & (-1 , 2)
Slope = [tex]\frac{y_{2}-y_{1}}{x_{2}-x_{1}}[/tex]
[tex]= \frac{2-4}{-1-[-6]}\\\\= \frac{-2}{-1+6}\\\\= \frac{-2}{5}[/tex]
m = -2/5 & (-6 , 4)
y -y1 = m(x -x1)
[tex]y - 4 = \frac{-2}{5}(x - [-6])\\\\y - 4 = \frac{-2}{5}(x + 6)\\\\y - 4 = \frac{-2}{5}x + 6*\frac{-2}{5}\\\\y = \frac{-2}{5}x -\frac{12}{5}+4\\\\y=\frac{-2}{5}x-\frac{12}{5}+\frac{4*5}{1*5}\\\\y=\frac{-2}{5}x-\frac{12}{5}+\frac{20}{5}\\\\y=\frac{-2}{5}x+\frac{8}{5}[/tex]
PLSS help !!!Which of the following correctly shows the first step when factoring 3ab + 3ac – 4db – 4dc by grouping?
Answers
Answer:
Factorise:
3a(b+c)-4d(b+c)
Last one.
Further on:
(3a-4d)(b+c)
The factor 3ab + 3ac – 4db – 4dc can be grouped as
a(3b + 3c) - d(4b + 4c).
What is the difference between factoring and grouping?
We can break large polynomials into groups that transmit a common factor. This allows us to factor each separate group, then mix like terms. This exists named factoring by grouping.
Given: 3ab + 3ac - 4db - 4dc.
Expanding the equation a(3b + 3c): 3ab + 3 a c
=3 a b+3 a c-d(4 b+4 c)
Expanding the equation -d(4 b+4 c): -4bd - 4cd
a(3b + 3c) - d(4b + 4c) = 3ab + 3ac - 4bd - 4cd
Therefore, the correct answer is option b) a(3b + 3c) - d(4b + 4c).
To learn more about factoring and grouping
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PLEASE PLEASE PLEASE HELP ME!! THANK YOU!!
EXPLANATION = BRAINLIEST & FIVE STAR RATING
x = ___ yd
Round your answer to the nearest tenth.
Answers
Cos ( 37 ) = 30 / x
0.7986 = 30 / x
x = 30 / 0.7986
x = 37.5657
x = 37.5660
x = 37.5700
x = 37.6000
x = 37.6 yard
Answer:
Value of x is 30°Step-by-step explanation:
Step 1: Find value of x by using the trigonometric ratio cosine of x. Here, given that adjacent side is 16 and hypotenuse is 18 cos x° = adjacent side/hypotenuse = 16/18 = 8/9
x° = cos inverse(8/9) = 27.12° = 30° (Rounded off to nearest ten)
Step-by-step explanation:
#hopeithelpsstay safe and keep wellmark me as your brainliest plsFind the value of x.
Answers
choose the function that the graph represents
Answers
y= f(x)= log ₄x
What is the range of the following data set? {4, 7. 3. 9. 7. 8. 6. 7. 4. 3}
Answers
Answer:
range = 6
Step-by-step explanation:
Highest number - lowest number
9 - 3
= 6
Help me find the answer please I already know how to do it but we usually use the formula for two bases but this is confusing me because of the third number:((((
Answers
Answer:
7.5
Step-by-step explanation:
You will use the 2.5 not the 3 as height.
Area of trapezoid=( A+b/2)*h
(2+4/2)*2.5
(6/2)*2.5
3*2.5
7.5
Please help! 8th grade geometry! Thank you<3
Answers
answer : 48 maybe that’s what they’re looking for .
Answer:
Length of the hypotenuse - 10
Step-by-step explanation:
To find the hypotenuse, we need to use the Pythagorean theorem.
a^2 + b^2 = c^2
8^2 + 6^2 = c^2
64 + 36 = c^2
c^2 = 100
c = 10
Evaluate the expression when a = -6 and b = 3 A -2b
Answers
Answer:
-6- (2(3))
-6-6=-12
Answer= -12
Step-by-step explanation:
In a class there are 11 boys and 19 girls.
The mean weight of all 30 children is 32.85 kg.
The mean weight of the 11 boys is 31.9 kg.
Work out the mean weight of the 19 girls.
Answers
Answer:
explain two ways in which the preservation of natural environments adds quality of life in a country : ,
Solve for X.
Please help for geometry final! Thanks.
Answers
Answer:
[tex]x = 180 \degree - 82\degree - 44\degree \\ x = 54\degree[/tex]
The middle school is 2.72 kilometers from Marsha's house and 1.54 kilometers from Ryan's house. How much farther does Marsha live from the middle school than Ryan? Group of answer choices
Answers
Answer:
1.18 kilometers
Step-by-step explanation:
The middle school is 2.72 kilometers from Marshal house
The school is also 1.54 kilometers away from Ryan house
Therefore the distance of Marshal house from the school can be calculated as follows
= 2.72-1.54
= 1.18 kilometers
Find x and y
(y+23)
(2x-17)
Answers
Answer:-2
Step-by-step explanation:
The formula to estimate organic growth is Pf=P0 . e^rt
MegaVax manufactures vaccinations. The microbe jagus rashii, is being grown for a vaccine against a new strain of influenza. Jagus rashii grows at a rate of 25.0% per hour. How long will it take for a culture of 1,349 jagus rashii to grow to a population of 75,709?
Express your answer to the nearest hundredth of an hour.
Answers
Answer:
16.12 hrStep-by-step explanation:
If I got it right, we have:
Formula Pf = P0*e^(rt)Pf = 75709P0 = 1349r = 25% = 0.25t = ?Substitute the given values and solve for t:
75709 = 1349*e^(0.25t)e^(0.25t) = 75709/1349e^(0.25t) = 56.1223ln e^(0.25t) = ln 56.12230.25t = 4.03t = 4.03/0.25t = 16.12 hr
A card is drawn from a standard deck. Find the probability of drawing a heart or a 7.
Answers
=======================================================
Explanation:
There are A = 13 hearts and B = 4 copies of "7"
The count A+B = 13+4 = 17 may seem like it's the count of hearts or "7" cards, but we're double counting the 7 of hearts. So the true count is actually 17-1 = 16
There are 16 cards we want (either a heart or a "7") out of 52 total. Therefore, the probability is 16/52 = (4*4)/(4*13) = 4/13
what is x the missing side length in triangle DEF
Answers
Answer:
x = 9.75
Step-by-step explanation:
We know that Triangle ABC and DEF are congruent, therefore;
[tex]\frac{CB}{FE} = \frac{AB}{DE}[/tex]
[tex]\frac{12}{9 }=\frac{13}{x}[/tex]
=> 12*x = 9*13
=> 12x = 117
=> x = 117 / 12
=> x = 9.75
Hope this helps!
someone help fasttttt
Answers
Answer:
D. 44 degrees
Step-by-step explanation:
angle 3: 180-136 = 44 degrees
Because angle 7 is congruent to angle 3, angle 7 is also 44 degrees
Which section of the graph represents the solution of the system of inequalities shown?
Answers
Answer:
Q
Step-by-step explanation:
5x+15y ≥ -20
Solve for y
15 y≥ -5x-20
Divide by 15
y ≥ -5x/15 -20/15
y ≥ -1/3 x -4/3
Y is greater than or equal to so shade above and on the line
4x-2y > 6
Solve for y
-2y > -4x+6
y < 2x -3
Shade below the line
The double shaded area is the solution
==========================================================
Explanation:
Let's focus on the inequality 4x-2y > 6
Plug in (x,y) = (0,0) to find that...
4x-2y > 6
4(0)-2(0) > 6
0 > 6
This is a false statement. So that means (0,0) is not in the shaded region for 4x-2y > 6. So we'll shade the opposite side of the dashed line to shade regions Q and R (i.e. stuff below the dashed line).
-----------------
Let's check the point (0,0) with the other inequality as well
[tex]5x + 15y \ge -20\\\\5(0) + 15(0) \ge -20\\\\0 \ge -20\\\\[/tex]
This is true because 0 is to the right of -20 on the number line.
So we'll shade regions P and Q to represent the solution set for this inequality. These regions are above the boundary line. Points on the boundary are also included.
------------------
To summarize so far, we found that
regions Q and R make 4x-2y > 6 true, regions P and Q make [tex]5x + 15y \ge -20\\\\[/tex] true.The overlap is region Q which is the final answer
Any point from region Q satisfies both 4x-2y > 6 and [tex]5x + 15y \ge -20\\\\[/tex] at the same time. A point on the solid boundary line is part of the solution set, but stuff on the dashed boundary line are not solution points.
219.44 in word form
Answers
Answer:
two hundred nineteen and 44
OR
two hundred nineteen point 44
Step-by-step explanation:
do not say AND before nineteen. saying AND represents a decimal point. Both can be used (point or and)
Bab needs help please!
Answers
Answer:
V =282.6 in ^3
Step-by-step explanation:
The volume of a cylinder is
V = pi r^2 h
We know pi = 3.14 r= 3 and h =10
V = 3.14* 3^2 *10
V =282.6
3 in
The volume of
the figure is
cubic in.
6 in
3 in
3 in
7 in
16 in.
Answers
Answer:
6in is the cubic volume
Step-by-step explanation:
If I'm wrong just correct me
Matt is saving to buy a new motorcycle. If he deposits $70 at the end of each month in an account that pays an annual interest rate of 3.5%, how much will he have in
60 months? Assume that the compounding is being done monthly
Answers
Answer:
bro I don't know. I just need the points so I can keep getting answers. good luck tho I guess.
Order the list of numbers from least to greatest.
8.8 × 1021 , 6.2 × 102 , 2.8 × 1021 ,
1.5 × 102 , 5.1 × 1012
6.2 × 102, 1.5 × 102, 5.1 × 1012,
8.8 × 1021, 2.8 × 1021
1.5 × 102, 2.8 × 1021, 5.1 × 1012,
6.2 × 102, 8.8 × 1021
8.8 × 1021, 2.8 × 1021, 5.1 × 1012,
6.2 × 102, 1.5 × 102
1.5 × 102, 6.2 × 102, 5.1 × 1012,
2.8 × 1021, 8.8 × 1021
Answers
Answer:
That's a lot of calculations but to be frank I don't know how to solve this
What's the special name for a quadratic that has one solution?
Answers
Our mom asked you to head to the grocery and get 4.5 kilograms of apples. How many grams of apples you need to buy?
Answers
Answer:
4500
Step-by-step explanation:
One Kg equals one thousand grams!
What is the leading coefficient of 2x^9 + 3x^6 - x -20?
Answers
Answer:
2
General Formulas and Concepts:
Algebra I
Terms/CoefficientsStep-by-step explanation:
Step 1: Define
Identify
2x⁹ + 3x⁶ - x - 20
Step 2: Find
The leading coefficient is the constant multiplied to the highest degree variable:
Highest Degree: x⁹
Term: 2x⁹
Leading Coefficient: 2
Please help with math
Answers
Answer:
C=2pi
Step-by-step explanation:
A.10D Simplify the expression
(x - 3)2
Answers
Answer:
2x - 6
Step-by-step explanation:
(x-3)2
2( x ) = 2x
2( - 3 ) = - 6
2x - 6
[tex]\implies {\blue {\boxed {\boxed {\purple {\sf { \: 2x - 6}}}}}}[/tex]
[tex]\sf \bf {\boxed {\mathbb {Step-by-step\:explanation:}}}[/tex]
➺[tex]\:(x - 3)2[/tex]
➺[tex] \: 2x - 6[/tex]
Note:-[tex]\sf\red{PEMDAS\: rule.}[/tex]
P = Parentheses
E = Exponents
M = Multiplication
D = Division
A = Addition
S = Subtraction
[tex]\bold{ \green{ \star{ \orange{Mystique35}}}}⋆[/tex]
differentiate
f(x)= 186.5
Answers
Answer:
Hope this helps!
Step-by-step explanation:
f'(x)=0
Question 3(Multiple Choice Worth 4 points)
(05.01)The graph shows the distance a car traveled, y, in x hours:
A coordinate plane graph is shown. The x-axis is labeled time in hours ,and the y-axis is labeled distance in miles. The line passes through the points 2 comma 60, and 4 comma 120.
What is the rise-over-run value for the relationship represented in the graph?
20
30
1 over 20
1 over 30
Answers
Answer:
hello there,
the answer for this question would be 30
Step-by-step explanation:=
Given: The x-axis represents the time in hours and the y-axis represents the distance in miles.
The line passes through the points and
To find: The rise-over-run value for the relationship in the graph.
m=rise over run
=y2-y2/x2-x1
=120-60/4-2
= 60/2
= 30
Hope this helps. if correct please make me brainliest
thank you,
have a good day!!