Answers
Related Questions
In triangle ABC, ∠A=120°, a=3, and b=2. Find angle ∠C to the nearest degree.
Answers
Answer:
Step-by-step explanation:
Use Law of Sines to find ∠B.
∠B = arcsin(b·sinA/a) ≅ 35°
∠C = 180°-∠A-∠B = 25°
help please will mark brainliest!
Find the area. Simplify your answer.
Answers
Answer:
If you know what x is then you can add it to 1 multiply that by 7 to get the answer then simplify, since you cannot simplify whole numbers you know that it is a decimal. To simplify a decimal remove the decimal point and reduce the ratio to a ratio of whole numbers. Multiply the numerator and denominator of the ratio in fraction form by a 10, 100, 1000 i.e., a power of ten to eliminate the decimal. Then the fraction is simplified to be in its lowest terms.
Step-by-step explanation:
Taylor Swift CD’s sell for $10 and Selena Gomez CD’s sell for $15. If a music store sold 18 CD’s and worth $240, how many of each CD did they sell?
Answers
Answer:
ts 24 sg 18
Step-by-step explanation:
Answer: she sold 6 of the Taylor Swift cd’s($10 cd’s) and 12 of the Selena Gomez cd’s ($15 cd’s)
Factor 10x2 – 42x – 108.
Question 20 options:
A)
(5x + 9)(x + 6)
B)
2(5x + 9)(x – 6)
C)
(x + 9)(5x – 6)
D)
2(10x – 9)(x + 6)
Answers
Answer:
B
Step-by-step explanation:
You have to know how to factor polynomials.
2(5x^2-21x-54)
2(5x^2-30x+9x-54)
2(5x(x-6)+9(x-6))
2(5x+9)(x-6)
In ANOP, the measure of ZP=90°, NO = 83 feet, and OP = 49 feet. Find the measure of 20 to the nearest tenth of a degree.
Answers
Answer: 53.8
Step-by-step explanation:
On a certain day, the temperature outside dropped 5 degrees every hour for 4 hours. How much has it dropped after the 4 hours?
Answers
4 x 5 = 20
Answer:
OKay i did not get it but it should be 96 hours
Step-by-step explanation:
Two of the sides of a right triangle are 8 and 6 units long. How long is the third side? Find all possible answers. Natural lengths, but not all. Three natural numbers, that could be sides of a right triangle, are called Pythagorean triple . The ultimate goal of this set of problems is to find all Pythagorean triples .'
All possible answers are _; _; _; _; _; _; units long
Ps. plz someone solve this
100 brainly points to whoever solves this
Answers
Step-by-step explanation:
so first you have 8 and 6 and a triangle the third side should be a equal number it should me 14 combined but I dont know if im wrong but the other side should me 7×2 which is 14
What is the sector area of a sector created
by circle with a radius of 2 m and a 140°
central angle.
Answers
Answer:
Area of sector = 4.88 m ²
Step-by-step explanation:
Given:
Angle = 140°
Radius = 2 m
Find:
Area of sector
Computation:
Area of sector = [θ/360][πr²]
Area of sector = [140/360][(22/7)(2)²]
Area of sector = 4.88 m ²
Can someone help me with question #2 a, b, and c
Please and thank you
Answers
Answer:
A= 60, B= 33%, C= 66%
Step-by-step explanation:
A=60 because 1/3 of 180 is 60
B=33% because thats the closest you can get to 1/3 of 100 unless you wanna add .3 to it
C= Same explanation for B
In the accompanying diagram, PA is tangent to the circle at A and PC is a secant. If
PA = 8 and PB = 4, then BC =
Answers
Answer:
c. 12
Step-by-step explanation:
PA² = (BC + PB) × PB => tangent-secant theorem
PA = 8
PB = 4
BC = ?
Substitute
8² = (BC + 4) × 4
64 = 4BC + 16
64 - 16 = 4BC + 16 - 16
48 = 4BC
48/4 = 4BC/4
12 = BC
BC = 12
what is 2/3 of 1/4 ?
Answers
A sociologist was hired by a large city hospital to investigate the relationship between the number of unauthorized days that employees are absent per year and the distance (miles) between home and work for the employees. A sample of 10 employees was chosen, and the following data were collected.
Distance to Work (miles) Number of Days Absent
1 9
3 6
4 9
6 8
8 7
10 2
12 4
14 3
14 5
18 1
Required:
a. Develop the least squares estimated regression equation used to predict the number of days absent given a certain distance to work.
b. Is there a significant relationship between the two variables? Use α = 0.05.
c. Did the estimated regression equation provide a good fit? Explain.
d. Is the estimated regression equation appropriate and adequate?
e. Are there any outliers in the data? If yes, identify them.
Answers
Answer:
y = -0.43841X + 9.34565
Step-by-step explanation:
Given the data:
Distance to work (x) :
1
3
4
6
8
10
12
14
14
18
Y:
9
6
9
8
7
2
4
3
5
1
The least square estimated regression equtyol obtained using a linear regression calculator is :
y = -0.43841X + 9.34565
Yes, from the correlation Coefficient value, R which yields - 0.8444, shows they a strong linear relationship exists between the two variables.
The obtained regression equation is appropriate
Write a linear function f with the values f(0) = 5 and f(2)= -3.
f(x) =
Answers
Answer:
Step-by-step explanation:
A linear function has the form
y=mx+b, where m=slope and b=y intercept ( the value of y when x=0)
We are given the point (0,5) so we know b is 5. So we just need to find the slope m
m=(y2-y1)/(x2-x1), we have two points (0,5) and (2,-3)
m=(-3-5)/(2-0)
m=-8/2
m=-4 so our line is
y=-4x+5
show your work (?) please
Answers
Because you move the decimal three places to the right.
OR.
2.013 x 1,000
Two pizza delivery drivers compared the mean numbers of deliveries they completed in one day.
Answers
Answer:
The mean number of deliveries for driver A is less then the mean for driver B by 3 MADs.
Answer:
CAN SOMEONE REMOVE THIS ANSWER.
4 Select the correct answer. Solve the system of equations. y= 4x + 5 y = x2 + 12x + 20
A. (-3,-7) (-5,-15)
B. (-3,-17) and (-5,-25) )
C. (-3,-15) and (-5,-7)
D. (3,17) and (5,-15)
need help asap pls
Answers
Answer: y= 4x + 5 y = x2 + 12x + 20 = y=4 x=0
Step-by-step explanation:
A=1 20
B= 440
C= 120
D= -240
Answer:
B) (-3,-17) and (-5,-25)
Step-by-step explanation:
solve for the following equation
6Y+4 = 4y-2
Answers
Answer:
y = -3
Step-by-step explanation:
6y +4 = 4y- 2
2y= -6
y= -3
pls Mark as brainliest
Determine the value of c, given that the graph of f(x) = cx^2 + 1/x^2
has a point of inflection at (1, f(1))
Answers
Answer:
The value of c is [tex]c = \frac{1}{3}[/tex]
Step-by-step explanation:
Point of inflection:
A function f(x) has a point of inflection at the values of x for which:
[tex]f^{\prime}(x) = 0[/tex]
Has a point of inflection at (1, f(1))
This means that [tex]f^{\prime}(1) = 0[/tex]
f(x) = cx^2 + 1/x^2
This means that, applying the derivative of a power rule:
[tex]f^{\prime}(x) = 2cx - \frac{2}{x^3}[/tex]
Since [tex]f^{\prime}(1) = 0[/tex]
[tex]2c - \frac{2}{3} = 0[/tex]
[tex]2c = \frac{2}{3}[/tex]
[tex]c = \frac{2}{2*3} = \frac{1}{3}[/tex]
The value of c is [tex]c = \frac{1}{3}[/tex]
Page 1
1. Find the common denominator for the
pairs of fractions given.
3/5 and 2/15
Answers
Answer:
15 is the answer. 3/5 with the denominater would be 9/15
12.42 ÷ 4.6 = 0.4÷ 0.242= 1.404÷0.45=
Answers
Answer:
a)2.7
b)1.65289256
c)3.12
The trip to and from work each day is 8 7/8 miles. If John does this 5 days of week how many miles does he travel.
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These are the answers.
But reasons are not given.
Answers
Answer:
Looks like the book has fixed RHS while I have fixed LHS.
2x2 + 6x + 2 = 5x2 + 9x + 3
Answers
Answer:
−3
Step-by-step explanation:
Use the values of a,b, and c to find the discriminant. −3
Which expression is equivalent to 4 (x + 2)?
6 x
4 (x) + 4 (2)
4 (x) + 4
8x
Answers
Can someone help me with this question I’ll give you a brainslist alg 1
Answers
Answer:
Its the first one 2^(x-1) -3
Find the interior height of the pyramid. Round to the nearest tenths if necessary.
Answers
Answer: 6 in
Step-by-step explanation:
[tex]a^{2}= c^{2} - b^{2}[/tex]
[tex]a=\sqrt{10^{2}-8^{2} }[/tex]
a=6 in
Area and Perimeter Study Island
Answers
Answer:
C. 48
Step-by-step explanation:
since it's the perimeter is 112 and the width is 8 ft you add 8 + 8 which is 16 and then you subtract it by 112 which gives you 96 then you divide 96 / 2 which gives you the answer of 48
7-100 Lavanne is not convinced that his measurements from Problem 7-99 are correct. He
decides to calculate the distance again between towns A and C using a different method to
verify his results. This time, he drives a stake in the ground at Point D, which is 800 feet from
town A and 694 feet from town C. He also determines that m 2D = 68º. Using these
measurements. how wide is the lake between points A and C?
D
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what is 4.42 - 1.26 equal
Answers
Answer:
3.16
Step-by-step explanation:
4.42 - 1.26 = 3.16
6 foot tall man has a 9 foot shadow at the same time a tree standing next to him as a 30 foot shadow how tall is the tree?
Answers
I did 9-7= 3 so 30-3=27
If not 9/7=1.5 so 30/1.5=20
?
The tree is 20 feet tall if the 6-foot tall man has a 9-foot shadow at the same time a tree standing next to him as a 30-foot shadow.
What is a right-angle triangle?It is a triangle in which one of the angles is 90 degrees and the other two are sharp angles. The sides of a right-angled triangle are known as the hypotenuse, perpendicular, and base.
From the right angle triangle,
The ratio of the man height and his shadow is equal to the tree height(h) and its shadow.
6/9 = h/30
h = 20 feet
Thus, the tree is 20 feet tall if the 6-foot tall man has a 9-foot shadow at the same time a tree standing next to him as a 30-foot shadow.
Learn more about the right angle triangle here:
brainly.com/question/3770177
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