Answers
Answer:
9a6
Step-by-step explanation:
23-34 a + 1
Answer:
a = ± 2
Step-by-step explanation:
Use the distance formula to calculate XY, then equate to 10
d = [tex]\sqrt{x_{2}-x_{1})^2+(y_{2}-y_{1})^2 }[/tex]
with (x₁, y₁ ) = X(a -5, - 2a) and (x₂, y₂ ) = Y(a + 1, 2a)
XY = [tex]\sqrt{(a +1-(a-5))^2+(2a-(2a))^2\\}[/tex]
= [tex]\sqrt{(a+1-a+5)^2+(4a)^2}[/tex]
= [tex]\sqrt{6^2+16a^2}[/tex] , then
[tex]\sqrt{36+16a^2}[/tex] = 10 ( square both sides )
36 + 16a² = 100 ( subtract 36 from both sides )
16a² = 64 ( divide both sides by 16 )
a² = 4 ( take the square root of both sides )
a = ± [tex]\sqrt{4}[/tex] = ± 2
Related Questions
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Answer Choices:
The relation is a function because each input has exactly one output.
The relation is not a function because each input has the same output.
The relation is a function because each input has the same output.
The Relation is not a function because each input should have a unique output.
Answers
Answer:
The relation is a function because each input has exactly one output.
Step-by-step explanation:
pls help its the last question
Answers
Answer:
Step-by-step explanation:
9.2 to 9.3 the top right one
A computer originally priced at $850 is on sale for 15% off. What is the sale price of the computer?
Answers
Answer:
Sale price: $722.50
Step-by-step explanation:
Subtract 15% from 100%, obtaining 85%. The computer is sold for 85% off.
Converting this 85% to a mixed decimal, we get 0.85, and then we multiply the original price ($850) by this 0.85: 0.85($850) = $722.50
Help me please this is homework
( d is 5cm2 )
Answers
Answer:
A = 12 cm^2
Step-by-step explanation:
A = h*b/2
A = (6cm)(4cm/2)
A = 12 cm^2
Leave a like and mark brainliest if this helped
Which of the following is always true about lines of symmetry?
A line of symmetry divides a shape into two equal parts.
A line of symmetry is a vertical line through the middle of a figure.
A figure can have only one line of symmetry.
A line of symmetry goes through opposite vertices of a figure.
Answers
Help? I need the right answers.
Answers
Answer:
Horizontal line of symmetry
Vertical line of symmetry
Rotational symmetry
Diagonal line of symmetry
Step-by-step explanation:
what an expression for 8 times b
Answers
Answer:
8b
Step-by-step explanation:
'8 times b' symbolizes 8 being multiplied by 'b'.
Times is a word associated with multiplying.
8 times b can be 8 * b or most ideally, 8b.
Hope this helps!
Answer:
8b
Step-by-step explanation:
8 times b means we multiply 8 AND b so:
8b
What are the three theorems we can use
to show that two triangles are similar? Draw
an example of each theorem using two
triangles.
10th grade LT1
Answers
Answer:
Hope this will help you....
The radius of a baseball is approximately 2.5 inches. What is its volume?
Answers
Answer:Below
Step-by-step explanation:
A baseball is round.
So, the diameter and the height are the same.
The radius is half of the diameter, so: 2.5 x 2 = 5
The height is also 5.
The Volume is 65.45
Answer:
Step-by-step explanation:
The Volume is 65.45
A box contains 5 red, 4 white and 6 blue balls. If three balls are drawn at random without replacement, determine the probability that none of the balls selected is red.
Answers
Answer:
The probability that none of the balls selected is red ²⁴/₉₁
Step-by-step explanation:
Given;
number of red balls, R = 5
number of white balls, W = 4
number of blue balls, B = 6
Total number of balls, = 5 + 4 + 6 = 15
Probability of selecting 3 none red balls = P(WWW) or P(BBB) or P(WWB) or P(WBW) or P(BWW) or P(BBW) or P(BWB) or P(WBB)
[tex]P = (\frac{4}{15} \times \frac{3}{14} \times \frac{2}{13} ) + (\frac{6}{15} \times \frac{5}{14} \times \frac{4}{13} ) + (\frac{4}{15} \times \frac{3}{14} \times \frac{6}{13} ) + (\frac{4}{15} \times \frac{6}{14} \times \frac{3}{13} ) + \\\\(\frac{6}{15} \times \frac{4}{14} \times \frac{3}{13} ) + (\frac{6}{15} \times \frac{5}{14} \times \frac{4}{13} ) + (\frac{6}{15} \times \frac{4}{14} \times \frac{5}{13} ) + (\frac{4}{15} \times \frac{6}{14} \times \frac{5}{13} )[/tex]
[tex]P = \frac{24}{2730} + \frac{120}{2730} + \frac{72}{2730} +\frac{72}{2730} + \frac{72}{2730} + \frac{120}{2730} + \frac{120}{2730} + \frac{120}{2730} \\\\P = \frac{720}{2730} \\\\P = \frac{24}{91} \\\\[/tex]
Therefore, the probability that none of the balls selected is red ²⁴/₉₁
If x = 12 units, y = 4 units, and z = 8 units,
Answers
Answer:
24
Step-by-step explanation:
12+4+8= 24
12+12=24
8+4=12
Your answer is 24
what is the measure of angle 4? Pls i need help
Answers
Answer:
254
Step-by-step explanation:
the angle is 254
"-2=2" what does this mean
Answers
Step-by-step explanation:
i think it means that when negative tow crosses the equal sign, as in a calculation,it becomes positive
eg. -2 +z=0
z =2
Answer:
Negative two is equal to negative two
Step-by-step explanation:
Kinda confused as to why you do not understand that expression...
Find all solutions of the equation in the interval [0, 2pi)
cosx (2 sinx+1)=0
Answers
Answer:
x = pi/2 and 11pi/6
Step-by-step explanation:
Given the trigonometry expression
cosx (2 sinx+1)=0
This can be written in two forms as;
cosx = 0 and 2sinx + 1 = 0
If cos x = 0
x = arccos0
x = 90degrees
x = pi/2
Similarly
2sinx + 1 = 0
2sinx = -1
sinx = -1/2
sinx =-0.5
x = aarcsin(-0.5)
x = -30
Since sin is negative in the third and 4th quadrant
x = 270 + 30
x = 330degrees
x = 330pi/180
x = 11pi/6
SIMPLE PROPABIBLITY QUESTION FOR 15 POINTS!!!!
question below
Answers
Answer:
Step-by-step explanation:
1/2
Answer: 1/2
Step-by-step explanation:
it just is
A bag contains 10 discs.
Each disc is labelled with a different number from 1 to 10.
A disc is chosen from the bag at random.
Write down the probability that the chosen disc is the number 3
Answers
Explanation: There are 10 discs in the bag so if you choose a 3 there is a 1 in 10 chance of you getting it
Sigi cut a 4.4 m strip of wallpaper border into four pieces the first piece was 92 cm long and the second piece was 154 m long the third piece was one 890 mm long how many centimeters long with the remaining piece
Answers
Answer:
257.46
Step-by-step explanation:
1 mm = 0.1cm
Fill in the missing operator where the blank is.
18 _ (-20)= -2
Answers
Answer:
26
Step-by-step explanation:
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plzzzz hurry ill mark you brainly
Answers
Answer:
1: z = 4.
2: y= 6.
3: w= 13.
4: a= 36.
Please like and mark brainliest!
Hope it helps!
Answer: Z is equal to 4, for the first one. The second one is Y equals 6. The 3rd one is W equals 13. The fourth and final one is A equals 36.
Step-by-step explanation:
Long Explanatio, but I gave the answers.
10
11 5(2x + 1) + c(x + d) = 12x - 1
Work out the value of c and the value of d.
Answers
Answer:
c = 2, d = - 3
Step-by-step explanation:
Expand and simplify the left side then compare the coefficients of like terms on both sides.
5(2x + 1) + c(x + d) ← distribute parenthesis
10x + 5 + cx + cd
= x(10 + c) + 5 + cd
Compare like terms on both sides, that is
10 + c = 12 ( subtract 10 from both sides )
c = 2
Then
5 + cd = 5 + 2d and
5 + 2d = - 1 ( subtract 5 from both sides )
2d = - 6 ( divide both sides by 2 )
d = - 3
If you used about 25 ft to create the garden border, what is the approximate diameter of the garden to the nearest foot. Use π ≈ 3.14.
Answers
7.96 should be the answer.
A hemisphere-shaped security mirror fits exactly inside a rectangular prism
box with a square base that has edge length 10 inches. What is a reasonable
estimate for the volume of this mirror?
What is a reasonable estimate for the volume of this mirror? *
Less than 500 cubic inches. The volume of the box that the mirror fits in is 102.5, and
the mirror does not take up all the space in the box.
Less than 12511 cubic inches. The volume of the cylinder that the mirror fits in is ri(5)2
*.5, and the mirror does not take up all the space in the cylinder.
More than 125/31 cubic inches. The volume of the cone that fits in the mirror is
131(5)2.5, and the mirror is larger than the cone.
O All of the above
Answers
.
Part A
When flipping a penny, what is the theoretical probability of landing on heads? What is the theoretical probability of landing on tails?
Answers
Answer:
Theoretically, since it has two sides, it's a 50 50, chance. 50%
Find the surface area of the prism please help fast
Answers
Answer:
17.6 squared feet
Step-by-step explanation:
triangle is 0.5 X b X h
0.5 X 1 X 2 = 1 squared foot.
(there are two triangles) 1 X 2 = 2 squared foot
rectangle sides
2.2 X 3 = 6.6
1 X 3 = 3
2 X 3 = 6
add them altogether
2 + 6.6 + 3 + 6 = 17.6
Two stakes are holding a small blimp in place. Stake A measures
an angle of elevation of 49° and Stake B measures an angle of
elevation of 58º. If the string attached to Stake A has a length of
148 feet, what is the length of the string attached to Stake B?
Answers
Answer: 131.7 ft
Step-by-step explanation: use 148 as side measure b, then solve for measure of side a
with two given angles and one given side, use law of sines.
a = b•sin(A)/sin(B) = 131.71071
c = b•sin(C)/sin(B) = 166.89278
if you want to find angle measures:
180-A-B
180-49-58=73
C=73
The length of the string attached to stake B is 166.3 feet.
What is trigonometry?Trigonometry is mainly concerned with specific functions of angles and their application to calculations. Trigonometry deals with the study of the relationship between the sides of a triangle (right-angled triangle) and its angles.
For the given situation,
An angle of elevation of stake A = 49°
The length of the string attached to stake A,a = 148 feet
An angle of elevation of stake B = 58°
Let the length of the string attached to stake B be b.
Then by law of sines,
[tex]\frac{Sine A}{a}=\frac{Sine B}{b}[/tex]
On substituting the above values,
⇒ [tex]\frac{Sine 49}{148}=\frac{Sine 58}{b}[/tex]
⇒ [tex]b=\frac{(Sine 58)(148)}{Sine49}[/tex]
⇒ [tex]b=\frac{(0.8480)(148)}{0.7547}[/tex]
⇒ [tex]b=166.29[/tex] ≈ [tex]166.3[/tex]
Hence we can conclude that the length of the string attached to stake B is 166.3 feet.
Learn more about trigonometry here
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“The class buys 3 bags of apples. Each bag has 24 apples. The total cost of the 3 bags of apples is $12.24. The class sells the apples for $0.75 each. How much money will the class gain per apple”
Answers
54 - 12.24 = $41.76 total profit
41.76/3 = 13.92
13.92/24 = 0.58 cents per apple
which pair of statements about the lengths of the two sides of the triangle is true?
Answers
Answer:
D
Step-by-step explanation:
I Looked at te graph and counted each space
Answer:
Step-by-step explanation:
The Anwser is B
NO LINKS ACCEPTED -The robot factory is a learning center where children can build robots. The project fee per visit is $15 and each hour of time (x) at the factory costs $4. Jesse goes to the robot factory one afternoon and was charged $40 for the visit. Write an equation that models this situation where X is the number of hours Jesse stands at the robot factory
Answers
Answer:
15 + 4x = 40
Step-by-step explanation:
To construct this equation, we'll list all the values we will include first.
The total fee equals $40, so we'll put 40 on one side of the equation.
On the other side, we have to put the values that make up the total. The fee is made with the project cost plus the hourly rate. The first part of this is the beginning cost, $15. Added to this is the hourly cost, $4, times the number of hours spent. So, the other side of the equation is 15 (the starting cost) plus 4 (the rate) times x (the unknown number of hours).
So, our equation is 15 + 4x = 40.
Good luck ^^
2 positive integers have hcf of 12 and their product as 6336 number of pairs possible for the number is
Answers
Answer:
Here, we are given two positive numbers having HCF as 12 and their product as 6336. ... Hence, we get two pairs of numbers, (12 and 528) and (48 and 132). Therefore, the correct answer is option A.
Constant of proportionality from graphs
The following graph shows a proportional relationship.
What is the constant of proportionality between y and X
in the graph?
Answers
Answer:
[tex]\frac{2}{3}[/tex]
Step-by-step explanation:
[tex]\frac{y_{2} - y_{1}}{x_{2}- x_{1} } = \frac{2-0}{3-0} = \frac{2}{3}[/tex]
Answer:2/3
Step-by-step explanation:
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