Answers
Answer:
d = 6.1m
n = 7km
Step-by-step explanation:
To find the variables, use tan
⇒ tan = [tex]\frac{opposite}{adjacent}[/tex]
finding d:
⇒tan 63 = [tex]\frac{d}{3.1}[/tex]
tan of 63 is 1.963
⇒ 1.963 = [tex]\frac{d}{3.1}[/tex]
multiply 3.1 on both sides
⇒ 1.963 x 3.1 = [tex]\frac{d}{3.1}[/tex] x 3.1
⇒ 6.0853 = d
round to the nearest tenth:
⇒ 6.0853 = 6.1
finding n:
⇒ tan 45 = [tex]\frac{7}{n}[/tex]
tan of 45 is 1
⇒ 1 = [tex]\frac{7}{n}[/tex]
multiply 7 on both sides:
⇒ 1 x 7 = [tex]\frac{7}{n}[/tex] x 7
7 = n
Answer:
D = 1.4, N =
Step-by-step explanation:
To get D you need to find the cosine of 63 degrees
Cosine(63) = D / 3.1
Multiply by 3.1 to isolate D :
3.1Cosine(63) = D
Put it into a calculator and you'll get 1.4.
Also, it's a 45-45-90 triangle so the 2 legs will be equal to each other.
Proof: To get N put you have to do the tangent of 45 degrees
Tan(45) = 7 / N
Now you can't to do this you have to multiply the both sides by N
N(tan(45)) = 7
Then divide both sides by (tan(45))
N = 7 / (tan(45)
Put it into the calculator and you'll get
Related Questions
4.) A store is having a sale in which all items are marked 30% off.
4a.) Which equation represents the selling price, s, in dollars, of an item originally
priced p dollars after a markdown of 30%?
a.) s=0.3p
b.) s=0.7p
c.) p=0.35
d.) p=0.75
Answers
Answer:
0.70p
Step-by-step explanation:
"30% off" means paying only 70% of the original sales price (subtracting 30% from 100% yields 70%). Next, find the decimal equivalent of 70%:
It is 0.70. Finally, multiply the price p by 0.70: 0.70p (Answer b)
Answer:
d
Step-by-step explanation:
what are the pair of solutions?
Which of the following graphs represents the equation
2x + y = 12?
Answers
Answer:
a
Step-by-step explanation:
Answer:
Step-by-step explanation:
Richie is solving the equation x^2 – 12x = 28 by completing the square. What number should he add to
both sides of the equation to complete the square? Pleaseee Help
Answers
Answer:
Richie should add the number 36 to both sides.
Step-by-step explanation:
To complete the square, you need to divide b by 2, square it, then add it to both sides. In this case, you'd do this:
12/2=6
6^2=36
Camden is going to invest $600 and leave it in an account for 12 years. Assuming the interest is compounded continuously, what interest rate, to the nearest hundredth of a percent, would be required in order for Camden to end up with $920?
Answers
Answer:
320 i think lol
Step-by-step explanation:
Answer:
3.56
Step-by-step explanation:
The slope is -8. The point
(3, 12) lies on the line. What is the equation for each linear
Answers
Step-By-Step:
y=-8x+b
12=-8(3)+b
12=-24+b
b=36
In order to become a member of the library all star members club there is a $40 signup fee and a $2 monthly fee
Answers
Answer:
do you need an equation? if so it would be 2x+40
Step-by-step explanation:
9 – 4x = 2x whats the ancewer
Answers
Answer:
3/2 is the answer
Step-by-step explanation:
Answer:
x=1 1/2
Step-by-step explanation:
9-4x=2x
4x+2x=9
6x=9
x=9/6
x=3/2
x=1 1/2
Theres the answer hope this helps! :)
Pleaseee needing helppp
Answers
Answer:
You were correct.
Step-by-step explanation:
If the input to the function y = 4x - 3 is 2 Then
y = 4 * 2 - 3
= 8 - 3
= 5
Hope it helps :)
Need Help on math question
Answers
Answer:
36 yards
Step-by-step explanation:
The triangle is a 3-4-5 right triangle with a scaling factor of 12. No complicated Pythagorean theorem has to be used in this case.
60/12 = 5
48/12 = 4
3 is the only base number remaining.
3(12) =36
I NEED THIS ANSWERED QUICKKKK
Answers
Answer:
2/4=4/8
Step-by-step explanation:
you do 2×2=4 and 4×2=8. You multiply both denominators by 2.
it costs $5.25 for a bottle of 150 vitamins. if the cost varies directly with the number vitamins in the bottle, what should a bottle of 250 vitamins cost?
Answers
Answer:
$8.75
Step-by-step explanation:
I HOPE THIS HELPS YOU OUT WITH YOUR QUESTION! PLZ LET ME KNOW IF IT DID! IT MAKES ME FEEL GOOD THAT SOMEONE APPRECIATES IT! ANYWAY, IF YOU HAVE A FEW MINUTES PLZ GOT TO MY PROFILE AND THANK MY ANSWERS (THE MORE THE MERRIER)
What is the area of the figure?
18 yd2
54 yd?
72 yd?
90 yd?
Answers
Answer:
72yd2
Step-by-step explanation:
making figure into 2
1st figure
= 6×5
= 30yd^2
2nd figure
= 14×3
= 42yd^2
Area of the full figure
= (30+42)yd^2
= 72yd^2
PLZZZ MARK ME AS BRAINLIEST:)
The school cafeteria sells two kinds of wraps: vegetarian and chicken. The vegetarian wrap costs $1.00 andthe chicken wrap costs $3.10. Today they made $268.30 from the 136 wraps sold. How many of the wraps
sold were vegetarian?
a. 57 wraps
c. 63 wraps
d. 75 wraps
b. 73 wraps
Answers
Answer:
I think it is 73
Step-by-step explanation:
Because i tryed all of the other numbers and they didnt work
HOPE THIS HELP !!!!!!!!!!!!!!!! :)
Select the expression that has a value of 23.
6 + (9 x 3) ÷ 3 + 8
(6 + 9) + 3 ÷ 3 + 8
6 + 9 x 3 ÷ (3 + 8)
(6 x 9 x 3) ÷ 3 + 8
Answers
6 + (9 x 3) ÷ 3 + 8
Help me pleaseeee right now please
Answers
Answer:
x | y
-2 | -5
-1 | -3
0 | -1
1 | 1
2 | 3
3 | 5
The pattern is as x increases by 1, y increases by 2.
Step-by-step explanation:
Write a quadratic function for the graph
shown below in the form
f(x) = (x - h)? +k.
Answers
1) Determine if the side lengths could form a
triangle. Use an inequality to prove your
answer.
29ft, 38ft, 9ft
Answers
9514 1404 393
Answer:
cannot form a triangle
Step-by-step explanation:
The triangle inequality requires the sum of the shorter sides exceed the longest one.
9 + 29 > 38
38 > 38 . . . . . . . . FALSE — not a triangle
y = -3x + 4
y = 3x - 2
graph
Answers
Answer:
Look at the graph bellow
Step-by-step explanation:
use the slope and y-intercept to graph.
One-half of a number added to seven is eleven. What is the number?
Answers
The answer is A
You’re welcome
Answers
Answer:
so you answered your own question?
I NEED HELP PLEASE Which is the better buy?
14 rolls of paper towels for $18
or
10 rolls of paper towels for $12
what is the unit rate for the 14 roll option
Answers
Answer: The second one, 10 rolls for $12. 1.29 (Rounded)
Step-by-step explanation:
14/18 is 1.29 (Rounded)
10/12 is 1.20.
The unit rate is cheaper, therefore making it the better buy
Make both numbers of rolls 140 (14x10 and 10x14)
Do the same with the dollars:
10 roll option: $168 but 14 roll option: $180
Bottom option is better
(m - 8) ÷ 2 in standard form (no links)
Answers
Answer:
1/2m - 4
Step-by-step explanation:
What is the measure of the missing angles?
Answers
Answer:
[tex]x = 64 + 45 \\ x = 109[/tex]
The vertex of a parabola is (-1, -8) and the zeros are (-5, 3) Determine the equation of the parabola in standard and factored form
Answers
Answer:
Part A
The equation of the parabola in standard form is f(x) = 0.5·x² + x - 7.5
Part B
The equation of the parabola in factored form is f(x) = 0.5·(x + 5)·(x - 3)
Step-by-step explanation:
The coordinates of the vertex of the parabola, (h, k) = (-1, -8)
The zeros of the parabola = -5, 3
Part A
The quadratic equation representing the parabola can be written as follows;
y = a·(x - h)² + k
The standard form of the equation is f(x) = a·x² + b·x + c
k = c - b²/(4·a)
h = -b/(2·a)
c = k + a·h² = -8 + a
From the zeros of the parabola, we have;
f(-5) = a × (-5)² + b×(-5) + c = 25·a - 5·b + c = 0
f(3) = a × (3)² + b×(3) + c = 9·a + 3·b + c = 0
Therefore, we have;
25·a - 5·b + c = 0...(1)
9·a + 3·b + c = 0...(2)
From which we have;
25·a - 5·b + c = 25·a - 5·b - 8 + a = 26·a - 5·b - 8 = 0
9·a + 3·b + c = 9·a + 3·b - 8 + a = 10·a + 3·b - 8 = 0
We then have;
26·a - 5·b = 8...(3)
10·a + 3·b = 8...(4)
Making 'b', the subject of both equations (3) and (4), equating the values, we find the value of 'a' as follows;
From equation (3), we have;
26·a - 5·b = 8
∴ b = (26·a - 8)/5
From equation (4), we have;
10·a + 3·b = 8
∴ b = (8 - 10·a)/3
From b = b, by transitive property, we have;
(26·a - 8)/5 = (8 - 10·a)/3
3 × (26·a - 8) = 5 × (8 - 10·a)
78·a - 24 = 40 - 50·a
∴ 128·a = 64
a = 64/128 = 1/2 = 0.5
a = 0.5
∴ b = (26·a - 8)/5 = (26 × 0.5 - 8)/5 = (13 - 8)/5 = 1
b = 1
c = -8 + a
∴ c = -8 + 0.5 = -7.5
c = -7.5
The equation of the parabola in standard form is therefore presented as follows;
f(x) = 0.5·x² + x - 7.5
Part B
The equation of the parabola in factored form is given as follows;
With the aid of a graphing calculator, we have;
f(x) = 0.5·x² + x - 7.5 = 0.5×(x² + 2·x - 15) = 0.5·(x + 5)·(x - 3)
The equation of the parabola in factored form is f(x) = 0.5·(x + 5)·(x - 3)
Help! Check if my answer is right please, I’m marking brainliest!!!
A. 46.1
B. 50.1 - (my answer)
C. 76
D. 54.2
Show work, if possible. Thanks❤️
Answers
Answer:
its B
Step-by-step explanation:
Please give me the correct answer.Only answer if you're very good at math.
Answers
Answer:
1/2 is the slope
Step-by-step explanation:
Slope is rise over run
it goes up 1 and across 2
therefore the slope is 1/2
Answer:
[tex]\frac{1}{2}[/tex]
Step-by-step explanation:
[tex]slope = \frac{rise}{run} = \frac{1}{2}[/tex]
Help please. I need to finish this in five minutes!
Answers
Answer:
i have no idea....
Step-by-step explanation:
but i hope someone helps :(( good luck:((
solve the triangle a=? b=7m c=10m
Answers
Answer:
[tex]\sqrt{149}[/tex]
Step-by-step explanation:
The third side of a triangle can be any value in the range of -
1 ≤ a < 17.
What is a triangle?A triangle is a polygon with three edges and three vertices. It is one of the basic shapes in geometry.In Euclidean geometry, any three points, when non-collinear, determine a unique triangle and simultaneously, a unique planeGiven are two sides of a triangle as b = 7m and c = 10m.
The sum of two sides of a triangle is always greater than the third side. Mathematically -
a < {b + c}
a < {7 + 10}
a < 17
a ∈ [1, 16]
Therefore, the third side of a triangle can be any value in the range of -
1 ≤ a < 17.
To solve more questions on triangles, visit the link below -
https://brainly.com/question/12538366
#SPJ2
what is 45 + 97 + 140
Answers
Answer:
Use a Calculator
Step-by-step explanation:
You have on on you phone
Please help! I will give branliest!
Answers
Answer:
1. 1/2
2. 1/4
3. 1/4