Answer:
using elimination, the best first step is multiply the first equation by -3. multiply the second equation by 3 doesn't do anything to eliminate one of the unknowns. solving for x in the first equation or solving for y in the second equation are the substitution method, not the elimination method.
Step-by-step explanation:
Consider the figure below.
part a- Determine sin(g)
part b- Determine tan(z)
part c- Determine cos(z)
part d- Determine sin(M)
Answer:
A) 77/427
B) 77/420
C) 420/427
Step-by-step explanation:
Sin= Opposite/Hypotenuse
Opposite always make a 90° with the Adjacent. adjacent and the Hypotenuse are across each other.
Cos= Adjacent/Hypotenuse
Tan= Opposite/Adjacent
Answer:
part a: 420/427
part b: 420/77
part c: 77/427
In triangle ABC, m
hypotenuse: AB, BC, or CA?
Answer:
The hypotenuse is the side AB
Step-by-step explanation:
Right Triangles
Right triangles are identified because they have an internal angle of 90°. The longest side is the hypotenuse and the two smaller sides are called the legs.
The hypotenuse is always opposite to the right angle.
The image provided below shows a right triangle ABC, whose angle C is 90°. Thus, the hypotenuse is the side AB.
f(x) is a function.
0
3
с а м а
7
12
f(x)Help
Answer:
It's a function
Step-by-step explanation:
Because non of the inputs have the same output
How to identify if the problem is a sample deviation problem or a population deviation problem?
Answer:
what?????????????????
An auto transport truck holds 12 cars. A car dealer plans to bring in 1, 150 new cars in June and July. If an auto transport truck is filled for each delivery, except for the last one, how many full truckloads are needed and how many cars will be in the last truck?
95 full truckloads with 12
cars on the 96th truck
960 full truckloads with 10
cars on the 961st truck
95 full truckloads with 10
cars on the 96th truck
96 full truckloads with 10
cars on the 97th truck
Answer:
95
Step-by-step explanation:
Ok so
so firs what we do is
1150/12 and ignore remainder
95 and remainder is 10
therefore we have 95 trucks full and 10 cars in the last truck
A phone company offers two monthly plans. Plan A costs $21 plus an additional $0.09 for each minute of calls. Plan B has no initial fee but costs $0.13 for each minute of calls.
For what amount of calling do the two plans cost the same?
minutes
What is the cost when the two plans cost the same?
$
Answer:
525; $68.25
Step-by-step explanation:
21+.09x=.13x
x=525
21+.09(525)=68.25
.13(525)=68.25
The answers are :
A) The amount of calling for which the two plans cost the same will be 525 minutes.
B) The cost when two plans cost the same amount is $68.25.
What do you mean by algebraic expressions ?
Algebraic expression is an equation which consists of variables and the arithmetic operations such as division , multiplication , etc.
A)
Let's assume the amount of calling is x for which the two plans cost the same.
So , the algebraic expression can be written as ;
Plan A = Plan B
or
21 + (0.09 × x) = 0 + (0.13 × x)
Solving this we will get amount of calling for which the two plans cost the same as :
21 = 0.13x - 0.09x
0.04x = 21
x = 525 minutes
B)
Now , the cost when two plans cost the same amount :
Plan A = 21 + (0.09 × 525) = 21 + 47.25 = $68.25
or
Plan A = Plan B = $68.25
Therefore , the answers are :
A) The amount of calling for which the two plans cost the same will be 525 minutes.
B) The cost when two plans cost the same amount is $68.25.
Learn more about algebraic expression here :
https://brainly.com/question/2164351
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what is this answer?
Answer:
the answer is h=9
Step-by-step explanation:
the answer is h=9
27/3=9
Which of the following is true about a parallelogram?
The diagonals are equal.
All sides are congruent.
The diagonals bisect each other.
The diagonals are perpendicular.
Answer:
The diagonals bisect each other.
Step-by-step explanation:
Not all diagonals of a parallelogram are equal.
The only quadrilaterals with all four sides being congruent are rhombus and squares so parallelogram is wrong.
The diagonals of a parallelogram bisect each other.
The diagonals of a parallelogram are only perpendicular when it is a square.
write an equivalent expression in standard
form and collect like terms.
2x - (x + 8) - 4
Answer:
3x-12 because you distribute and then collect like terms
how many eighths make a quarter
Answer:
Two Eighths
Step-by-step explanation:
One eighth is one part of eight equal sections. Two eighths is one quarter
The Capital Asset Pricing Model (CAPM) is a financial model that assumes returns on a portfolio are normally distributed. Suppose a portfolio has an average annual return of 15.1% (i.e., an average gain of 15.1%) with a standard deviation of 35%. A return of 0% means the value of the portfolio doesn't change, a negative return means that the portfolio loses money, and a positive return means that the portfolio gains money. (Round your answers to two decimal places.)
a.) What percent of years does this portfolio lose money, i.e. have a return less than 0%?
b.) What is the cutoff for the highest 15% of annual returns with this portfolio?
Answer:
a) the required percentage is 32.64%
b) the cutoff for the highest 15% of annual returns with this portfolio is 49.02%
Step-by-step explanation:
Given that;
mean μ = 14.7 %
standard deviation σ =33%
a.) What percent of years does this portfolio lose money, i.e. have a return less than 0%?
P( portfolio lose money )
= P( x< 0) P( 0-14.7 / 33 )
P( Z < -0.45 ) = 0.3264 ≈ 32.64%
Therefore, the required percentage is 32.64%
b)
the cutoff for the highest 15% of annual returns with this portfolio will be:
P( X ≥ x) = 15%
1 - P(X ≤ x) = 0.15
P(X ≤ x) = 0.85
P(Z ≤ x-14.7 / 33 ) = 0.85 ----------let this be equation 1
form tables, P(Z ≤ 1.04) = 0.85 -----LET THIS BE EQU 2
from the equations;
(x-14.7 / 13 ) = 1.04
33 × 1.04 = x-14.7
34.32 = x-14.7
x = 34.32 + 14.7
x = 49.02%
Therefore, the cutoff for the highest 15% of annual returns with this portfolio is 49.02%
What is the prime factorization of 82
Answer:
82 is a secondary prime, with the factors 2 and 41
Answer:
2 x 41
Step-by-step explanation:
82=1 × 82 or 2 × 41
factors of 82: 1,2,41,82.
prime factorization: 82= 2 ×41.
if x = -3 is a zero of f(x), which of the following must be true?
a) A factor of f(x) is (x – 3)
b) A factor of f(x) is (x + 3)
c) x = 3 is also a zero
d) f(x) has no real solutions
Answer: B
Step-by-step explanation: You make the values in the parentheses equal to zero.
(X + 3) = 0
X = -3
A is wrong because the root would be 3, not negative 3. C is wrong because 3 isn’t guaranteed to be a root. D is wrong because -3 is a real solution.
Solve the quadratic with quadratic formula:
4x^2 + 10x – 1 = 0
Answer:
[tex]\displaystyle x=\frac{-5 \pm \sqrt{29}}{4}[/tex]
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightAlgebra I
FactoringStandard Form: ax² + bx + c = 0Quadratic Formula: [tex]\displaystyle x=\frac{-b\pm\sqrt{b^2-4ac} }{2a}[/tex]Step-by-step explanation:
Step 1: Define
4x² + 10x - 1 = 0
Step 2: Identify Variables
a = 4
b = 10
c = -1
Step 3: Find roots
Substitute in variables [QF]: [tex]\displaystyle x=\frac{-10\pm\sqrt{10^2-4(4)(-1)} }{2(4)}[/tex][√Radical] Exponents: [tex]\displaystyle x=\frac{-10\pm\sqrt{100-4(4)(-1)} }{2(4)}[/tex][√Radical] Multiply: [tex]\displaystyle x=\frac{-10\pm\sqrt{100+16}}{2(4)}[/tex][√Radical] Add: [tex]\displaystyle x=\frac{-10\pm\sqrt{116}}{2(4)}[/tex][Fraction] Multiply: [tex]\displaystyle x=\frac{-10\pm\sqrt{116}}{8}[/tex][√Radical] Simplify: [tex]\displaystyle x=\frac{-10\pm 2\sqrt{29}}{8}[/tex][Fraction] Factor: [tex]\displaystyle x=\frac{2(-5\pm \sqrt{29})}{8}[/tex][Fraction] Simplify: [tex]\displaystyle x=\frac{-5 \pm \sqrt{29}}{4}[/tex]A Netflix subscription is on sale for $41.94 for six months. What is the cost per month
Answer:
$6.99
Step-by-step explanation:
Divide the total cost by the number of months
4
Step-by-step explanation:
PLEASE HELP Which statement completes step 5 of the proof?
Step 1 segment KL is parallel to the y-axis, and segment JL is parallel to the x-axis.
Step 2 ΔJKL was rotated 90° clockwise to create ΔJ'KL'. Point K did not change position, so it remains point K. Therefore, ΔJKL ≅ ΔJ'KL'.
Step 3 segment K L prime is perpendicular to the y-axis, and segment J prime L prime is perpendicular to the x-axis.
Step 4 segment JK lies on line f and has a slope of 3.
Step 5 ?
Step 6 The product of the slopes of segment JK and segment J prime K is −1; therefore, lines f and g are perpendicular.
Answer:
Segment J’K lies on line g and has a slope of -1/3
Step-by-step explanation:
Im taking the test but I need step 4 but step 5 is filled in for me
Answer:
In case you get the same question
Step-by-step explanation:
ill give you brainlest pls help
Answer:
A. m<R, m<S, m<Q
Step-by-step explanation:
In a triangle, the length of each side determines the size of the angle opposite it. Thus, the longer the side, the bigger the size of the angle opposite it. The shorter the side, the smaller the size of the angle opposite it.
In ∆QRS, we have the following:
✔️The longest side is RS = 16. <Q is opposite to RS, therefore <Q is the largest angle.
✔️The medium side is QR = 15. <S is opposite to QR, therefore <S is the medium angle.
✔️The shortest side is SQ = 9. <R is opposite to SQ, therefore <R is the smallest angle.
From smallest to the largest we would have:
m<R, m<S, m<Q
Solve for x.
3x - 161
7x - 382
Answer:
55.25 = x
Step-by-step explanation:
3x - 161 = 7x - 382
Balance method:
7x- 3x = -161 + 382
4x = 221
Divide to find x:
221/4 = x
55.25 = x
Find the sum of 2 4/5 + 1 3/9
Answer:
4 2/15
Step-by-step explanation:
4 x 9 = 36 3 x 5 = 15 5 x 9 = 45
36/45 + 15/45 = 51/45 = 1 6/45
1 + 2 + 1 = 4 + 6/45 = 4 6/45= 4 2/15.
Please help me with my homework!
Alexis says she is thinking about a number whose absolute value is 19. What are the possible numbers she could be thinking of? Mark them on the number line.
Answer:
-19 and 19
Step-by-step explanation:
The only values that have an absolute value of 19 are -19 and 19.
Use Euler’s Formula to find the missing number.
Faces: _____
Edges: 15
Vertices: 9
Use Euler’s Formula to find the missing number.
Answer:18
#CARRYONLEARNING #STUDYWELLAnswer:
Use Euler’s Formula to find the missing number.
Faces: __8__
Edges: 15
Vertices: 9
Answer is 8
Step-by-step explanation:
need help plzzzzzxsss
Helppppppppppppppppppppppp please
Answer:
A
Step-by-step explanation:
Two Squares
There are 2 squares at the top and bottom. All sides = 3
2* s^2
2 * 3^2
2 * 9
18
Middle Figure.
Triangles
There are many ways to solve this. I think the most easily understood is to break it into 2 triangles and a rectangle.
Base of both triangles = 5 + 5 = 10
The height of each triangle = (7 - 3)/2 = 4/2 = 2. You divide by 2 because there are 2 bases -- one in each triangle.
Area = 1/2 * 2 * 10 = 10
But there are 2 of them so the total area is 20
Rectangle
The length of the rectangle = 5 + 5 = 10
The width = 3
Area = 30
Total
Total Area = 2 squares + 2 triangles + 1 rectangle
Total Area = 18 + 20 + 30 = 68
An online furniture store sells chairs for $200 each and tables for $650 each. The
store must sell no less than $12000 worth of chairs and tables each day. Write an
inequality that could represent the possible values for the number of tables sold, t, and the number of chairs sold, c, that would satisfy the constraint.
Answer: There’s alot of answers but one of the is 18 table with the cost of 11,700$ and 1 chair with 200$ so in totally it 11,900, less then 12,000
Step-by-step explanation:
Solve the inequality 37v < -18
Answer:
I'm not sure
Step-by-step explanation:
sorry need point
14k²+49k+21 factorise
Answer:
(2k+1)(k+3)
Step-by-step explanation:
14k²+49k+21
simplify by dividing the whole equation by 7
2k²+7k+3
factorise
(2k+1)(k+3)
Jenny served one scoop of ice cream to her friends using a 3/4 cup scooper. She
served herself and 4 friends ice-cream. How many total cups of ice-cream did
she serve? Your answer can be written as an improper fraction or mixed fraction
and must contain your label."
Answer:
75?
Step-by-step explanation:
1/4 = 25
25 x 3 =75
----
3/4=75
Q +2.02=9.2 q equals
Answer:
Q=7.18
Step-by-step explanation:
9.2-2.02=7.18
Answer:
7.18
Step-by-step explanation:
subtract 2.02 from 9.2
Find the missing side or angle.
Round to the nearest tenth.
A=18°
B= 28°
b=100
a=[ ? ]
Answer: a = [ 65.8]
Step-by-step explanation:
A = 18°
B = 28°
b = 100
a = [ x ]
[tex]\dfrac{100}{sin \: 28^{o} } =\dfrac{x}{sin \: 18^{o} } \\\\\dfrac{100}{0.4694715628} =\dfrac{x}{0.3090169944} \\\\x=\dfrac{0.3090169944 \cdot 100}{0.469715628} \\\\x=65.78810\dots \\x \approx 65.8[/tex]
Write and algebraic expression , Twice a number n
Answer:
2(n) or 2n
Step-by-step explanation:
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