Answer:
55⁰
Step-by-step explanation:
A triangle is a polygon with three sides and three angles. There are different types of triangles such as isosceles triangle, equilateral triangle, scalene triangle, right angled triangle.
The law of cosines states that for a triangle with sides a, b and c and the corresponding angles opposite to the sides which are A, B and C. Then:
a² = b² + c² – 2bccos(A)
Let ML = a = 5.74, LN = b = 4, MN = c = 7.
∠N is opposite to side ML. Let ∠N be A, hence:
a² = b² + c² – 2bccos(A)
2bc* cos(A) = b² + c² – a²
Substituting:
2(4)(7) * cos(A)= 4² + 7² - 5.74²
56cos(A) = 32.0524
cos(A) = 0.5723
A = cos⁻¹(0.5723)
A = 55⁰
A = ∠N = 55⁰
Answer:
C. 55°
Step-by-step explanation:
Right on 2021 Edg
½x + 1 ⅔ subtracted from 1 ½x - 1 ⅓
simplify IF NEEDED!!
Answer:
x-3
Step-by-step explanation:
Please help me this is called Writing Equations
Devon has two wood boards that are the same length. He divides each board into
three equal pieces. He uses 5 of those pieces in a project. The fraction shows the
fraction of the wood boards Devon used. Which is another way to show this amount?
Answer:
by transfering the fraction to decimal
Jada had some dimes and quarters that had a total value of $12.50. The relationship between the number of dimes, d, and the number of quarters, q, can be expressed by the equation
01 d+0.25q=12.5.
If Jada has 4 quarters, how many dimes does she have?
If Jada has 10 quarters, how many dimes does she have?
Answer:
ther are 25 dimes in 10 quarters
Step-by-step explanation:
The length of a rectangle is 10 m more than its width if the perimeter of a rectangle is 80 m find the dimensions of the rectangle.(perimeter is just adding up all the sides)
Answer:
width= 15
length=25
Step-by-step explanation:
width= x
length= 10+x
2(10+x+x)= 80
2(10+2x)= 80
20+4x= 80
4x=60
x= 15
width= x= 15
length= 10 +x= 10+15= 25
the variable x varies jointly y and z and x=8 when y =-6 and z=-3. find k and write the joint variation equation
Answer:
It’s 14
Step-by-step explanation:
7 times 2 is 14
URGENT!!
1) If (-4 + 3i) is a zero of the function, list another known zero
Step-by-step explanation:
The conjugate of the complex root must also be a zero of the function if the complex root is already a zero.
Conjugate of -4 + 3i is -4 - 3i.
Hence -4 - 3i is also a zero of the function.
Answer:
-4 - 3i
Step-by-step explanation:
If a zero of a function is a+bi, there is at least one other zero, a-bi, called the conjugate.
Using the graph, determine the equation of the axis of symmetry
Answer:
-5 or (-5,0)
Step-by-step explanation:
The axis of symmetry of a parabola is a vertical line that divides the parabola into two congruent halves. The axis of symmetry always passes through the vertex of the parabola . The x -coordinate of the vertex is the equation of the axis of symmetry of the parabola.
The solution is : the equation of the axis of symmetry is x= -5 or (-5,0).
What is parabola?The parabola is a plane curve which is mirror symmetrical and is approximately U-shaped. It fits several superficial different mathematical descriptions.
here, we have,
we know that,
The axis of symmetry of a parabola is a vertical line that divides the parabola into two congruent halves.
The axis of symmetry always passes through the vertex of the parabola .
The x -coordinate of the vertex is the equation of the axis of symmetry of the parabola.
Hence, The solution is : the equation of the axis of symmetry is x= -5 or (-5,0).
learn more on parabola:
https://brainly.com/question/1615961
#SPJ2
Match each product of powers with its simplified expression.
57.52
54
5.52
1
56
56,5-
5?
54:54:59
520
5.5
50
Answer:
multiplication
Step-by-step explanation:
928
8292
92229
929292
28282
Derek bought a cloth for rs 950 .He spent rs 150 for stitching a shirt and sold it at a gain of rs 375 . Find the selling price of the shirt
Answer:
$1473
Step-by-step explanation:
cost of cloth= rs.950
He spent rs.150 for stitching a shirt
total cots= 950+150
total cost=1100
gain= rs.375
we know that
gain= selling price- cost price
substitute
375= selling price- 1100
selling price= 1100+373
selling price=$1473
Hence the selling price is $1473
hello i would like help and the answer to this please; what is the nth term rule of
-5 -4 -1 4 1 1 20 31
Answer:
The nth term of the given sequence
[tex]a_{n} = a_{n-1} + (2n-1)[/tex]
Step-by-step explanation:
Explanation:-
Given sequence -5,-4,-1,4,11,20,31
a₀ = -5
a₁ = a₀ +1 = -5 +1 = -4
a₂ = a₁ + 3 = -4+3 = -1
a₃ = a₂ + 5 = -1 +5 = 4
a₄ = a₃ + 7 = 4 + 7 =11
a₅ = a₄ + 9 = 11+9 = 20
a₆ = a₅ + 11 = 20+11 = 31
a₇ = a₆ + 13 = 31 +13 =44
and so on
The nth term of the given sequence
[tex]a_{n} = a_{n-1} + (2n-1)[/tex]
Please help. Will give brainliest. I know the answer I just don’t get the solution so I want to see how other people do it. ur supposed to use the unitary method for this.
Answer:
its very hard to see, it looks good but I can't see much.
Answer:
[tex]percentage \: increase = (25 - 22.5) = 2.5\% \\ let \: origial \: price \: be \: x \\ 2.5\% \times x = 4.5 \\ x = \frac{4.5}{2.5\%} \\ x = \frac{4.5 \times 100}{2.5} \\ x = 180 \: cents \\ new \: price = x + 4.5 \\ = 180 + 4.5 \\ new \: price = 184.5 \: cents[/tex]
1) 4b - 2 = 6
2) 5x + 4 = 24
3) 7c - 11 = 17
4) 18 = 3k - 3
5) 9/4 - 1 = 3
6) 2/3v = 2 - 4/3
Answer:
b = 2x = 4c = 4k =7I'm sorry, I think you have accidentally left out the variable in the question. I can't solve it because there's no variable to solve.v = 1There is no specific instruction in your question. I try to answer it based on what I understand from the equations. Hope this helps!
Step-by-step explanation:
Just rearrange the equation to solve the variable.
f(x) = (1)
What is the x intercept
Answer:
There is no x-intercept, only a y-intercept, which would be 1
Complete the following sentence. The slope of the graph of y = 5 x is ___
Answer:
We conclude that the slope of the graph of y = 5 x is 5.
Step-by-step explanation:
We know the slope-intercept form of the line equation
y = mx+b
where
m is the slope b is the y-interceptGiven the line
y = 5x
comparing with the slope-intercept form of the line equation
The slope of the line = m = 5
Therefore, we conclude that the slope of the graph of y = 5 x is 5.
The number of gallons used to wash dishes varies directly with the number of loads. If it takes 65 gallons to wash 5 loads. How many gallons would be needed to wash 3 loads?
Answer:
39 gallons
Step-by-step explanation:
65 gallons ÷ 5 loads = 13 gallons per load
13 gallons per load • 3 loads = 39 loads
Anyone know the answer I’m lost…
Answer:
#1: -1
#2: 1
Step-by-step explanation:
Anything raised to the 0 power is 1, but in question 1 the negative is outside the parenthesis, so it makes it -1.
2. Which of the following compositions of transformations would NOT map quadrilateral ABCD onto A'B'C'D'?
Answer:I picked 4
Step-by-step explanation:
.
find the measure of
Which of the following statement must be true?I WILL MARK THE BRAINIEST
Answer:
d) XY > RS
Step-by-step explanation:
When comparing triangles, the angle opposite to the side in question determines the length. In this case 99 is greater than 75. Since XY is the side opposite to 99, it is the larger side
Write each ratio as a fraction in lowest terms. 8 to 9
Answer:
8/17 and 9/17
Step-by-step explanation:
8:9
both add up to 17
so it can be 8/17 or 9 but it cannot be simplified unless if you want them both as a mixed number which is
8/17 as a mixed number is 2 1/17
9/17 as a mixed number is 1 8/17
1. Li is making beaded necklaces. For each necklace, she uses 27 spacers, plus 5 beads per inch of necklace length.Write an equation to find how many beads Li needs for each necklace. Veel a. input variable: b. output variable: c. equation:
Answer: Given that Li is making beaded necklaces for each necklace, she uses 27 spacers, plus 5 beads per inch of necklace length.
The equation to find how many beads Li needs for each necklace can be obtained as follows:
A. The input variable is the number of inches of the necklace length (x).
B. The output variable is the number of beads Li needs for each necklace (y).
C. The required equation is given by
y = 5x
Step-by-step explanation:
PLEASE HELP ILL GIVE BRAINLIEST The graph of y = f(x) is shown below. What are all of the real solutions of f(x) = 0?
Answer:
(-8,0) (-1,0) (4,0)
Step-by-step explanation:
Just look at where y=0
Answer:
-8, -1 and 4
Step-by-step explanation:
look at where the line meets the x-axis and at what point
PLS SOMEONE HELP ME!!! will reward to the first correct person brainiest
Negative numbers dont have real roots, so you cannot have a square root of -1
Example: -1 x -1 does not equal -1, so this means you cannot do the same the other way
Answer:
Real numbers can be positive or negetive and include the number zero. They are called real numbers because they are not imaginary, which is a different system of numbers. Imaginary numbers are numbers that cannot be quantified, like the square root of -1.
hope this helps!!:)
Step-by-step explanation:
what is the y intercept of a line that passes through (1,-7) and (5,-25). How do I find it.
Answer:
y- intercept = - 2.5
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
Calculate m using the slope formula
m = [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]
with (x₁, y₁ ) = (1, - 7) and (x₂, y₂ ) = (5, - 25)
m = [tex]\frac{-25+7}{5-1}[/tex] = [tex]\frac{-18}{4}[/tex] = - 4.5 , then
y = - 4.5x + c
To find c substitute either of the 2 points into the equation
Using (1, - 7), then
- 7 = - 4.5 + c ⇒ c = - 7 + 4.5 = - 2.5
y- intercept c = - 2.5
Help me get the answer to this please
Can some plsss actually help me I have been getting bad luck! I need to submit soon. Plssss
Answer:
SCB
Step-by-step explanation:
Shaquira is baking cookies to put in packages for a fundraiser. Shaquira has made 868686 chocolate chip cookies and 424242 sugar cookies.
Shaquira wants to create identical packages of cookies to sell, and she must use all of the cookies.
What is the greatest number of identical packages that Shaquira can make?
packages
Answer:
Think the answer is 1292928
Step-by-step explanation:
Hope this helped have an amazing day/month/year!
A builder is trying to level out some ground with a front-end loader. He picks up some excess dirt at (9, 16) and then maneuvers through the job site along the rule (x+2, y+3), (x-3, y+4), and then (x+2, y-5) to get to the spot to unload the dirt. Find the coordinates of the unloading point. Write a rule that describes the translation from the loading point to the unloading point.
If x+y = 5 and xy = 6 , find (x³+y³)
Answer:
x²+y²=13
Step-by-step explanation:
x+y=5
now,
squaring both side
(x+y)²=5²
x²+2.x.y+y²=25
x²+y²+2×6=25 (putting value of xy=6)
x²+y²=25-12
x²+y²=13
hope it helps.