Answer:
[tex]\bold{k=\pm\dfrac{\sqrt6}{2}\approx\pm1.22}[/tex]
Step-by-step explanation:
[tex]2k^2-3=0\\\\a=2\,,\ \ b=0\,,\ \ c=-3\\\\k=\dfrac{-0\pm\sqrt{0^2-4\cdot2\cdot(-3)}}{2\cdot2}=\dfrac{\pm\sqrt{24}}{2\cdot2}=\dfrac{\pm2\sqrt{6}}{2\cdot2}=\pm\dfrac{\sqrt6}{2}\approx\pm1.22[/tex]
The expression (x-4)² is equivalent to... (btw this is about polynomials and all that)
Answer:
the answer is 8-2x
Step-by-step explanation:
Is this right?
1. Given a right triangle ABC, find the following trigonometric ratios with sides AB = 6, BC = 8 and AC = 10 units. Hint: draw and label your triangle.
a) sin A = 0.13
b) cos A = 0.99
c) tan A = 0.02
d) sin C = 0.01
e) cos C = 0.99
2. Looking back at question 1,
a) which vertex has the right angle? How do you know? B has a vertex. I know this because angle A and and C connect to angle B, and angle B it the corner of a right angle.
b) what do you notice about sine and cosine of complementary angles? The sine of A is different from the sine of C, and the Cosine of A is the same as the cosine of C
Answer:
Q1.
AC is the greatest side, therefore is hypotenuse. AB and BC are legs.
B is 90 deg as the two legs cross at this point.
Ratios:
sin = opposite / hypotenusecos = adjacent / hypotenusetan = opposite / adjacentBC is opposite to A and adjacent to C
AB is adjacent to A and opposite to C
sin A = cos C = 8/10 = 4/5cos A = sin C = 6/10 = 3/5tan A = cot C = 8/6 = 4/3tan C = cot A = 6/8 = 3/4Q2.
a) Answered above
b) Answered above
Please help me plz I need help
Answer:
a) Speed of the cyclist is (2.75/0.4) = 6.875 miles per hour.
b) It will take (5.5/6.875) = 0.8 hours to travel 5.5 miles at this rate.
Remember: Speed=Distance/Timesomeone pls help i will make brainliest IF RIGHT ANSWER! !!1 !!1 !
Answer:
Neither
Step-by-step explanation:
Triangles are similar if their angles are the same, and if the sides are changed by a proportional ratio. The angles for FED and ZXY are not the same. Therefore, they are not similar
Answer:
D. Neither
Step-by-step explanation:
Similar triangles are scaled versions of each other. Two triangles that are similar will have congruent angles. Hence, to find a triangle that is similarto ABC, the angles of the other triangles will be congruent to the given angles of ABC. As one can see, no other triangle has congruent angles to ABC, and hence the answer is D, neither of the two triangles are similar to ABC.
3 Triangles ABC and DEF shown in the diagram
are similar.
In triangle ABC, mZA = 64°.
In triangle DEF, m_F= 73º.
What is the measure of ZG?
Answer: mZG=
Answer:
137
Step-by-step explanation:
Kirk earns $16 for each hour of dog walking. After a total of 3 hours of walking dogs, how
much money will Kirk have earned?
Answer:
48
Step-by-step explanation:
Write the first five terms of the geometric sequence, given
Answer:
-9, 3, -1 , 1/3, -1/9
Step-by-step explanation:
Molly's hair was 20 inches long. Three years later it was 53 inches long. What was the percent increase, to the nearest hundredth, of Molly's hair length.
Find how much it grew:
53 - 20 = 33 inches.
Divide the amount it grew by the original length
33/20 = 1.65
Subtract 1:
1.65 - 1 = 0.65
Multiply by 100 for percent:
0.65 x 100 = 65%
The percent increase is 65%
please help me on this will give you brainliest
The circle graph represents the after-tax budget for the Williams family. If the total monthly budget is $3750, which is the best estimate for the food budget?
A: $625
B: $1250
C: $937.50
D: $468.75
The image of the point (-1, -1)(under a translation is (4, 4)( Find the coordinates of the image of the point (-6, 5) under the same translation.
The coordinates are (-1, 10).
What is translation?A translation in math moves a shape left or right and/or up or down. The translated shapes look exactly the same size as the original shape, and hence the shapes are congruent to each other. They just have been shifted in one or more directions. Since it is just moving of the shape from one place to other, there is no change in the shape.
Translation is one of the transformations in math. When a shape has been transformed, the original shape is called the preimage and the vertices are usually labeled using uppercase letters (Example: ABCD). The translated shape is called the image and the vertices are labeled using uppercase letters with a “prime” next to each (Example: A′B′C′D′, and is pronounced “A-prime, B-prime, C-prime, D-prime”).
Given:
the point is (-8, 3) whose image point is (-5, 2)
The difference between the coordinates of the image and the coordinates of the original is the same for both points.
X - (-6, 5) = (4, 4) -(-1, -1)
X = (4, 4) -(-1, -1) +(-6, 5) = (4+1-6, 4+1+5)
X = (-1, 10)
Hence, the point is (-1, 10)
Learn more about translation here:
https://brainly.com/question/12463306
#SPJ5
use what you know about zeros of a function and end behavior of a graph to choose the graph that matches the function f(x)=(x+3)(x+2)(x-1)
Answer:
could you show the graphs???????? ig u missed them to attach
Giving brainliest for help plz
Answer is B.
Thanks!!
What's 100 divided by 42
Answer:
Can you help me? It's worth one hundred points. https://brainly.com/question/21042823
Step-by-step explanation:
2.38095238095
pls help. “Find the Surface Area”
Answer:
The New Deal was a series of programs, public work projects, financial reforms, and regulations enacted by President Franklin D. Roosevelt in the United States between 1933 and 1939
ayuda.........................................................................................
Answer:
mhhh
Step-by-step explanation:
Guys please help me which one is the correct answer.
Answer:
I think 3 terms
I hope it's helps you
Answer:
2
Step-by-step explanation:
the letters count as term basically
Urgent please help..
Answer:
x ≈ 7.5
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
BracketsParenthesisExponentsMultiplicationDivisionAdditionSubtractionLeft to RightEquality Properties
Multiplication Property of EqualityDivision Property of EqualityAddition Property of EqualitySubtract Property of EqualityTrigonometry
[Right Triangles Only] SOHCAHTOA[Right Triangles Only] tanθ = opposite over adjacentStep-by-step explanation:
Step 1: Identify
Angle θ = 37°
Opposite Leg = x
Adjacent Leg = 10
Step 2: Solve for x
Substitute in variables [tangent]: tan37° = x/10[Multiplication Property of Equality] Multiply 10 on both sides: 10tan37° = xRearrange equation: x = 10tan37°Evaluate: x = 7.53554Round: x ≈ 7.5Find the value of x. Round to the nearest tenth.
Answer:
I think it's 16
Step-by-step explanation:
Answer:
answer is 102
Its the rule no matter what all triangles equal 180.
Step-by-step explanation:
all triangles equal 180
Write two numbers that multiply to the value on top and add to the value on bottom.
-90
27
Answer:
30 and -3
Step-by-step explanation:
GIVING AWAY BRAINLY!!
choose the linear expression 4(10x - 4).
Answer Choices:
A.) 10x - 16
B.) 40x - 16
C.) 40x + 16
D.) 40x - 4
Help is appreciated thank you very much!
Answer:
-3/5
Step-by-step explanation:
Slope is calculated with the formula m=(y_2 - y_1)/(x_2-x_2). The starting point I put as (0,0) and the finish is (5,-3). I used one city block is equal to one. Thus 3 blocks south(y-axis), is -3 and 5 east(x-axis) is 5. So plug into the equation with y_2 as -3 and x_2 as 5 then y_1 and x_1 both as zero. Thus slope=m= -3/5.
leo reads 13 pages 1/3 hour. What is the unit rate for pages per hour? For hours per page?
Answer:
33%
Step-by-step explanation:
What is the solution to this system of
equations?
S 2x – 3y = -4
-6x + 9y = 12
Answer:
2x-3y=-4
2x=3y-4
x=(3y-4)/2........1
-6x+9y=12
9y=12+6((3y-4)/2)
9y=12+9y-12
9y-9y=12-12
0=0not possible
9y-6y=4
y=4/3
Step-by-step explanation:
check it out a question once
What is X? HELP I NEED ANSWERS!
Answer:i think x=141
Step-by-step explanation:i agree
Answer:
Hope it helped
Step-by-step explanation:
In which intervals is the function increasing?
(5)
(3)
(4)
(2)
(1)
A Interval 1
B. Interval 2
OC. Interval 3
O D. Interval 4
E. Interval 5
Answer:
big deal with it is so beautiful I don't think so much more then we have been so long q and I don't think so much for your eyes and hindi movie with me and my family is not going anywhere else is not good for you think about it is so beautiful much as you can do it is not going anywhere I don't think so beautiful I was in my way I was a good day and night and night w w what we were with a week or so I can get you
Step-by-step explanation:
skyline of the day is not even w my phone is a great time with we we are not a good day and night and we will be on your face and we were with what w my heart is not going to be a good day for you think about what they do not have to do is not going to be in the world up to be a good day for me to be area and and and and and and and and and and and I am a very happy birthday party and hindi movie and hindi song I am not going anywhere else to get
Consider the Pareto chart, which shows the number of student blood donors by their type for one day of a campus blood drive. How many students donated blood on that day?
Question attached
Answer:
130
Step-by-step explanation:
Number of students old donors can be calculated from the Pareto chart by adding number of blood donors on the different bars:
Type 0= 50
Type A= 35
Type B =30
Type AB =15
Therefore 50+35+30+15=130 blood donors
Gwen is going to Turkey. The exchange rate is £1 = 5.8427 lira. She changes £424 to lira. How
many lira will she get to the nearest lira?
______________________________
= £424 × 5.8427lira= 2,477.31 liraGwen Will Get 2,477.31 lira______________________________
2multiplied by 6y + 3y divided by 3
Answer and Step-by-step explanation:
= 2×6y+3÷3
= 12y+3÷3
= 15y÷3
= 5y
Hope it help you mark as BrainlistThe product of 5 and x is at least 25
Answer: 5n≥25 and if you divide 5 on both sides, n≥5 (I don't know if you are supposed to solve or simply put it in the equation form).
Step-by-step explanation: