Answer:
7/30
Step-by-step explanation:
Plz help mee I am stuck
Answer:
Step-by-step explanation:
The answer is in the problem just figure it out with the numbers and plug it in
I’m confused please help me
Answer:
A Subtract 6 from 27 then divide by 3
Step-by-step explanation:
3B + 6 = 27
3B = 21
B = 7
so you subtract 6 from 27, then divide by 3
Find the y-intercept of the parabola y = x2 + x − 5.
Answer:
-5
Step-by-step explanation:
please helppp!!! will mark brainlyist
Answer:
x ≈ .1138985869
Step-by-step explanation:
[tex]tangent = \frac{opposite}{adjacent}[/tex]
[tex]tan(\frac{10}{x} ) = 26[/tex]
[tex]tan^{-1}[ tan(\frac{10}{x} )] = tan^{-1}(26)[/tex]
[tex]\frac{10}{x} = tan^{-1}(26)[/tex]
[tex]10 =x[ tan^{-1}(26)][/tex]
[tex]\frac{10}{tan^{-1}(26)} =x[/tex]
x ≈ .1138985869
Given the quadratic function 8x2 - 5x + 3 = y, which statement is true?
a. The quadratic is expressed in standard form; a= -8, b=5, and c= -3.
b. The quadratic is expressed in standard form; a=8, b= -5, and c=3.
c. The quadratic is expressed in standard form; a = 8, b=5, and c= -3.
d. The quadratic is not expressed in standard form because the equation is not equal to 0.
Answer:
b. The quadratic is expressed in standard form; a=8, b= -5, and c=3.
If c= 205 angle A=81 and angle B=50. b=
Assume angle a is opposite side a, angle B is opposite side b, and angle c is opposite side c,
Answer:
Solution to Problem 1:
Use the fact that the sum of all three angles of a triangle is equal to 180 o to write an equation in C.
A + B + C = 180 o
Solve for C.
C = 180 o - (A + B) = 43 o
Use sine law to write an equation in b.
a / sin(A) = b / sin(B)
Solve for b.
b = a sin (B) / sin(A) = (approximately) 5.4 cm
Use the sine law to write an equation in c.
a / sin(A) = c / sin(C)
Solve for c.
c = a sin (C) / sin(A) = (approximately) 7.1 cm
Problem 2
The angle of elevation to the top C of a building from two points A and B on level ground are 50 degrees and 60 degrees respectively. The distance between points A and B is 30 meters. Points A, B and C are in the same vertical plane. Find the height h of the building(round your answer to the nearest unit).
diagram problem 2
Solution to Problem 2:
We consider triangle ABC. Angle B internal to triangle ABC is equal to
B = 180 o - 60 o = 120 o
In the same triangle, angle C is given by.
C = 180 o - (50 o + 120 o) = 10 o
Use sine law to find d.
d / sin(50) = 30 / sin(10)
Solve for d.
d = 30 *sin(50) / sin(10)
We now consider the right triangle.
sin (60) = h / d
Solve for h.
h = d * sin(60)
Substitute d by the expression found above.
h = 30 *sin(50) * sin(60) / sin(10)
Use calculator to approximate h.
h = (approximately) 115 meters.
Problem 3
A triangle ABC has side a = 12 cm, side b = 19 cm and angle A = 80 o (angle A is opposite side a). Find side c and angles B and C if possible.(round answers to 1 decimal place).
Solution to Problem 3:
Use sine law to write an equation in sin(B).
a / sin(A) = b / sin(B)
Solve for sin(B).
sin (B) = (b / a) sin(A) = (19/12) sin(80) = (approximately) 1.6
No real angle B satisfies the equation
sin (B) = 1.6
The given problem has no solution.
Problem 4
A triangle ABC has side a = 14 cm, side b = 19 cm and angle A = 32 o (angle A is opposite side a). Find side c and angles B and C if possible.(round answers to 1 decimal place).
Solution to Problem 4
Use sine law to write an equation in sin(B).
a / sin(A) = b / sin(B)
Solve for sin(B).
sin (B) = (b / a) sin(A) = (19/14) sin(32) = (approximately) 0.7192
Two angles satisfy the equation sin (B) = 0.7192 and the given problem has two solutions
B1 = 46.0 o and B2 = 134 o
Solution 1: Find angle C1 corresponding to B1
C1 = 180 - B1 - A = 102 o
Solution 1: Find side c1 corresponding to C1
c1 / sin(C1) = a / sin(A)
c1 = 14 sin(102) / sin(32) = (approximately) 25.8 cm
Solution 2: Find angle C2 corresponding to B2
C2 = 180 - B2 - A = 14 o
Solution 2: Find side c2 corresponding to C2
c2 / sin(C2) = a / sin(A)
c1 = 14 sin(14) / sin(32) = (approximately) 6.4 cm
Exercises
1. A triangle ABC has angle A = 104 o, angle C = 33 o and side c = 9 m. Solve the triangle ABC by finding angle B and sides a and b.(round answers to 1 decimal place).
2. Redo problem 2 with the distance between points A and B equal to 50 meters.
Solutions to Above Exercises
1. B = 43 o, a = 16.0 m , b = 11.3 m
2. 191 meters.
More References and Links to Sine and Cosine Laws
sine law
Sine Law Calculator and Solver.
Geometry Tutorials, Problems and Interactive Applets.
Cosine Law Problems.
Cosine Law Calculator and Solver.
POPULAR PAGES
Sine Law Calculator and Solver
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Triangles
Triangle Problems
Please answer (NO SPAMMING) What is the sum of 56.4t + 1650kg? Give your answer in Kg
Answer:1,706
Step-by-step explanation:
Add
Answer:
58,050,000 grams= 58050kg
Step-by-step explanation:
58059kg is the answer
Two magnets will attract one another if
Answer:
the rule to remember is that opposites attract. every magnet has both a north and a South pole. when you place the North Pole of one magnet near the South Pole of another magnet, they are attracted to one another.
Step-by-step explanation:
Hope this helped Mark BRAINLIEST!!
Answer:
The magnets have different poles facing each other ( N/S > < S/N )
6 and 1/3 minus 4 and 1/4
WXYZ is a rhombus. What is m of angle XYZ?
Answer:
112
Step-by-step explanation:
8x+10=90
8x=80
x=10
180-90-(3x+4)=90-34=56
56×2=112
Evaluate
13- (-9)
need helpp
Answer:
The answer is 22.
Explanation:
Multiply -1 by -9.
[tex]13 + 9[/tex]
Add 13 + 9.
[tex]22[/tex]
Therefor, the answer is 22.
Someone please please help help me please please ASAP with my work
And NO LINKS or FILES
Answer:
1.
Blank 1: y
Blank 2: x
2.
Blank 1: x
Blank 2: y
Step-by-step explanation:
The reflection of a point along y-axis means the y value stays the same and the x-value changes its sign.
Blank 1: y
Blank 2: x
The reflection of a point along x-axis means the x value stays the same and the y-value changes its sign.
Blank 1: x
Blank 2: y
"What is the GCF (greatest common factor) of 60x^3- 10x^2+ 30x?
Answer:
10x
Step-by-step explanation:
Given the expression 60x^3- 10x^2+ 30x, we are to find the GCF
First let us find the factors of each terms
60x³ = 6 * (10 * x) * x²
10x² = 1 * (10 * x) * x
30x = 3 * (10 * x)
From the three factors, you can see that 10*x is common to them all. Hence the GCF of the expression will be 10x
Point B is a point of tangency. Find the radius r of OC.
Answer:
r = 16 units
Step-by-step explanation:
From the figure attached,
AB is the tangent drawn from a point A to the circle C.
BC = r [Radius of the circle]
Length of AC = (18 + r)
AB = 30
By the property of a tangent drawn to a circle,
"Radius of a circle and tangent are perpendicular to each other"
AB ⊥ BC
By applying Pythagoras theorem in ΔABC,
AB² + BC² = AC²
(30)² + r² = (r + 18)²
900 + r² = r² + 36r + 324
36r = 900 - 324
r = [tex]\frac{576}{36}[/tex]
r = 16 units
x 52° 46° Find the unknown angle measure
Answer:
82 degrees
Step-by-step explanation:
It should all equal 180 so 52+46=98 and 180-98 is 82
Can anyone please help me on this
Answer:
67mm
Step-by-step explanation:
12.
The table below shows the budget for the McDougal Family.
Budget Item Amount
Income $3,500
Income Taxes $350
College Savings $315
Retirement Savings $200
Emergency Fund Savings $115
Living Expenses $2,400
What percentage of the total income is the McDougal family saving for college?
12%
8.5%
9%
10.5%
Answer:
8.5%
Step-by-step explanation:
Determine if a triangle with the following sides forms a right triangle. Explain.
10 ft, 12 ft, 30 ft
6 m, 8 m, 10 m
8 m, 16 m, 24 m
20 in, 21 in, 28 in
Answer:
10, 12, 30 - no
6, 8, 10 - yes
8, 16, 24 - no
20, 21, 28 - no
Step-by-step explanation:
Just plug them into the Pythagorean Theorem equation (a² + b² = c²)
Brₐinliest plz close to leveling up
helppppppppppppppppp plzzzzzzzzzzz
Answer:
6/5
Step-by-step explanation:
If you are looking for the slope of the line it is 6/5 because starting from the origin you rise 6 (go up in this case) and run (go right in this case) 5 from the two points that you were given. The line is also going in an upwards direction so the slope is also positive. If you want to write the slope-intercept form equation you would use the slope intercept formula y=mx+b and plug in your slope (6/5) and your y-intercept, which is just 0 because it is at the origin and you would get y=6/5x or y=6/5x+0.
please silve this question fast
the question is on the photo anyone pls help
Answer:
3 inches per hour
Step-by-step explanation:
hope this helps
221 is 65% of what number
11.25 is 75% of what number
Answer:
340; 15
Step-by-step explanation:
221 is 65% of 221
11.25 is 75% of 15
please help :))
ty :))
Answer:
Answer is 980.
Step-by-step explanation:
First what you should do it figure out 14^2 which is 196 then you times that by 5 which gets you 980. Hope this helps.
Answer:
The answer is 980.
Step-by-step explanation: to follow pemdas you first start with the exponents for there are no parenthesis. So to do this 14^2 is just 14x14 with is 196. Then you take that and multiply it by the 5 to get your end product. 196x5=980.
Hope this helps.
X = 3/y
Do x and y show direct variation?
This is the last test of the school year if I fail I may have to go to summer school helppp
Answer:y varies directly as x if y = kx for some constant, k. In other words, y/x is constant. y varies inversely as x if y = k/x for some constant, k.
Step-by-step explanation:
A local restaurant advertises that the mode cost of their most popular meals is $8. If the costs of their most popular meals are $7, $8, $8, $12, $13, $15, $17, $18, and $20, which word or phrase best describes this kind of advertising?
accurate
inaccurate
accurate, but misleading
inaccurate and misleading
Find the distance between the points (6, -2) and (9,4).
Answer:
75 units
Step-by-step explanation:
Answer:
5 units
Step-by-step explanation:
answer given by IXL
Prove the identity and include the rule
Hi there!
To begin, we can distribute sec²x with (1 - sin²x):
= sec²x - sec²xsin²x
Which simplifies to:
= sec²x - tan²x
Recall the Pythagorean identity:
1 + tan²x = sec²x
Rearrange alike to the solved for expression above:
1 = sec²x - tan²x
Thus, using the Pythagorean Identity, sec²x(1 - sin²x) = 1.
Jeb and Lori went to a florist to buy flowers. Jeb bought 6 roses and 3 carnations for $20.25. Lori bought 8 roses and 3 carnations for $25.75. Find the price of one rose and the price of one carnation.
Answer:
rose: $2.75; carnation: $1.25
Step-by-step explanation:
The school cafeteria has 13 round tables and 20 rectangular tables. Each round table has 7 chairs, and each rectangular table has 8 chairs. How many chairs are there in all?
Answer:
160 for the rectangle table and 91 for the round table
Emily's family loves to work together in the garden. They have a slight preference for flowers, as 60%, percent of their plants are flowers and 40%, percent are vegetables. They have 50 plants growing in the garden.
Answer: the answer is 20.
