Answer:
85.9°
Step-by-step explanation:
angle = [tex]\arccos\frac{a\cdot b}{|a| |b|} = \arccos\frac{1+6-6}{{\sqrt{1+4+9}}\sqrt{1+9+4}}\\=\arccos\frac{1}{14}=85.9 degrees[/tex]
The side length of an equilateral triangle is 5 centimeters. Find the length of an altitude. Round your answer to the nearest tenth.
The length of the altitude is about
centimeters.
If the side length of an equilateral triangle is 5 centimeters, the length of altitude is about 4.33 centimeters.
What is an equilateral triangle?An equilateral triangle can be defined as a type of triangle or regular polygon that has equal side lengths and all of its interior angles are equal.
How to calculate the length of altitude.Mathematically, the length of altitude of an equilateral triangle is calculated by using this formula:
[tex]L=\frac{\sqrt{3} }{2} a[/tex]
Where:
a is the side lengths.L is the length of altitude.Given the following data:
Side length = 5 centimeters.Substituting the given parameters into the formula, we have;
[tex]L=\frac{\sqrt{3} }{2} \times 5\\\\L=\frac{5\sqrt{3} }{2}[/tex]
Length = 4.33 centimeters.
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Theo budgets 154 for karate classes he buys a karate uniform called a dogi for 12 if it cost 8 to attend each karate class which inequality below represents the number of classes c can Theo can take
Answer:
154 divide by 12 when you get your answer multiply it by 8
A different camera is selling for $7.50 off the regular price. It was marked down 15%. A student used the equation:
15(7.5) = Original price
and found the regular price of the camera to be $112.50.
Explain the error(s) in the student’s work.
Answer:
The original price is $50. The student's mistake in the equation is that he should have done 7.5/0.15
The student should not have multiplied, instead divided. He also didn't put 15 in a decimal form, which would have messed the whole equation up.
Answer:
The student should have divided the discounted amount by the percent. The percent should have been written as a decimal.
Step-by-step explanation:
that is what it says in the simple reponse
A social security number contains nine digits such as 000000000 How many different social security numbers can be formed using any numerals from 0 to 9?
Answer:
1 billion social security numbers
Step-by-step explanation:
Brainliest if correct
Answer:
[tex]\frac{13}{15}[/tex]
Step-by-step explanation:
[tex]\frac{2}{3}+\frac{1}{5}=\frac{10}{15}+\frac{3}{15}=\frac{13}{15}[/tex]
Eva is 5 years younger than 3 times Bill's age. If Eva is 2 years old, how old is Bill?
Answer:
17 years old.
Step-by-step explanation:
5 years than 3 times can be represented as 5*3.
5*3=15.
If Eva is 2, and Bill is 15 years older, 2+15=17.
Therefore, Bill is 17 years of age.
Please help!!!!!!!!!!!
Need help with number 3
8/t; t = 4
Hello
x - 7
for x = 23 = 23 - 7 = 16
3 a - b = 12 - 6 = 6
8/t = 8/4 = 2
9 + m = 9 + 1.5 = 10.5
1/2 w + 2 = 1/2 x 1/9 + 2 = 1/18 + 2 = 1/18 + 36/18 = 37/18
5 ( 6.2 + z ) = 50
4c=3 solve for c please
Step-by-step explanation:
Given equation is:-
4c=3Dividing both sides by 4, we get
4c/4=3/4By doing simply, we get
c=¾Hence, the value of c will be ¾.
PLEASE HELP 100 POINTS!!
Mr. Williams needs his computer hooked up to every station in the school. Not every station is connected to every other station. The cost of connecting various stations is represented in the graph below. What is the cost of the minimum spanning tree using Kurskal's Algorithm?
A) 58
B) 60
C) 62
D) 64
We need the diagonal of rectangle
AE=perpendicular=10=BBase=EH=8+9+7=24=BHypotenuse be H
Apply Pythagorean theorem
[tex]\\ \rm\Rrightarrow H^2=P^2+B^2[/tex]
[tex]\\ \rm\Rrightarrow H^2=10^2+24^2[/tex]
[tex]\\ \rm\Rrightarrow H^2=26^2[/tex]
[tex]\\ \rm\Rrightarrow H=26[/tex]
PLEASE HELP
Given a graph for the transformation of f(x) in the format g(x) = f(x) + k, determine the k value.
two parabolas open up with f of x passing through negative 3 comma negative 3 and g of x passing through negative 3 comma 1
A. k = −3
B. k = 1
C. k = 4
D. k = 5
Look up to their vertexes
f(x) has vertex at (-3,-3)g(x) has vertex at (-3,1)So
[tex]\\ \rm\rightarrowtail g(x)=f(x)+k[/tex]
[tex]\\ \rm\rightarrowtail g(-3)=f(-3)+k[/tex]
[tex]\\ \rm\rightarrowtail 1=-3+k[/tex]
[tex]\\ \rm\rightarrowtail k=1+3[/tex]
[tex]\\ \rm\rightarrowtail k=4[/tex]
The required value of K for the transformation of f(x) is 4. Option C is correct.
Given that,
Graph for the transformation of f(x) in the format g(x) = f(x) + k,
To determine the k value.
Two parabolas open up with f(x) passing through (- 3, - 3)and g(x) passing through (-3, 1).
A parabola is a cross section cut out of the cone and represented by an equation
Here,
Since equation of transformation is g(x) = f(x) + k
Now put the values of the vertex in the transformation equation,
f(x) passing through (- 3, - 3)and g(x) passing through (-3, 1).
f(-3) = -3
g(-3) = 1
g(-3) = f(-3) + k
1 = -3 + k
k = 1 + 3
k = 4
Thus, the required value of K for the transformation of f(x) is 4. Option C is correct.
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1. A parallelogram can be inscribed inside of a circle.
a) Always
b) Sometimes
c) Never
2. Circles can be inscribed inside of quadrilaterals.
a) Always
b) Sometimes
c) Never
Write the number 689,000,000,000,000 in scientific
notation.
Answer:
6.89 x 10^14
Step-by-step explanation:
A rectangular portrait is 3 feet wide and 3 feet high. It costs $3.83 per foot to put a gold
frame around the portrait. How much will the frame cost?
Which one is greater 2000 kg or 2 g
The answer is 2000kg
a pair of socks cost $18.50 the markup is 5% the taxes
Answer:
$19.43
Step-by-step explanation:
if I have a recipe for 5 cups of chicken broth how much broth would I use
Answer: you would use 5 cups
Step-by-step explanation:
if the recipe calls for 5 cups of chicken both you would use the 5 cups as it tells you
the of difference numbers is 1 and their product is 132
Answer:
11 and 12 or -11 and -12
Step-by-step explanation:
Write 23.4571 correct to
4 significant figures
Answer:
Your answer would be 23.46
A random sample of 10 size AA batteries for toys yield a mean of 3.27 hours with standard deviation, 0.68 hours.
(a) Find the critical value, t*, for a 99% CI. t* =
(b) Find the margin of error for a 99% CI.
Answer:
can u also help me if i help u?
Step-by-step explanation:
explain why cant a cross section be a sphere
in a for loop, is it possible to use indexing?
Answer:
Yes
Step-by-step explanation:
A for loop basically relies on repeating the same code for a pre-set number of times. During which you can make any code repeat inside of it, including indexing through a type of list. Many times a for-loop will use the indexes in a list to calculate the number of times that the loop has to repeat. This is usually done in order to search or apply changes in an array of other types of data structures that have countless values stored in it.
Identify the slope in the
following table of values.
Answer:
X =0
Y=0
..........Am i right
here a subtraction problem that has been solved incorrectly 41-27-28 choose the addition sentence that check this subtraction problem
Answer:
-14 + 28 + 27
Step-by-step explanation:
well 42-27-28 is -14 so add -14 to 28 27 and you might get 42
GIVING BRAINLIEST TO WHOEVER GETS THIS CORRECT!
What is the unit rate for meters per second if a car travels 374 meters in 17 seconds?
Answer:22
374meters. 17
(/). divided by (/)
17seconds 17
Equals 22 meters per second
Step-by-step explanation:
The area of the triangle below is 4.06 square meters. What is the length of the base?
2.8 m
ET
Answer:
2.9m
Step-by-step explanation:
Hope this helps! Have a great day!
P.S. Brainliest helps me reach more people and shows that I have reliable answers :D
Given z=-4-6i
Write down the conjugate of z
Answer:
z = -4 + 6i
Step-by-step explanation:
A math conjugate is formed by changing the sign between two terms in a binomial. For instance, the conjugate of x+y is x−y . We can also say that x+y is a conjugate of x−y . In other words, the two binomials are conjugates of each other.
18) The school that John goes to is selling tickets to the annual talent show. On the first day of ticket
sales the school sold 3 senior citizen tickets and 5 student tickets for a total of $71. The school
took in $190 on the second day by selling 10 senior citizen tickets and 12 student tickets. Find
the price of a senior citizen ticket and the price of a student ticket.
Answer:
Student ticket=$10. Senior ticket=$7
Step-by-step explanation:
If we say Student ticket price = Y. and senior ticket price = X. Then we can say:
[tex]3x+5y=71\\10x+12y=190[/tex]
We can rewrite one of the equations as y equals:
[tex]10x=190-12y[/tex]
Then, we simply solve for x.
[tex]\frac{10x=190-12y}{10}=x=19-1.2y[/tex]
Then, we use the other equation and replace x with the equation we just solved
[tex]3(19-1.2y)+5y=71\\[/tex]
We simplify and it becomes:
[tex]57-3.6y+5y=71[/tex]
Then we subtract 57 from each side and get:
[tex]-3.6y+5y=-14[/tex]
Next, we combine the y and get:
[tex]1.4y=14[/tex]
Then we divide by 1.4 and get:
[tex]\frac{1.4y=14}{1.4} =y=10[/tex]
This means that the cost per student ticket is $10
Next we replace the y value in an equation with 10 and solve:
[tex]3x+5y=71\\3x+5(10)=71\\3x+50=71\\[/tex]
Then we subtract 50 from each side:
[tex]3x+50=71\\-50\\3x=21[/tex]
Finally, we divide each side by 3:
[tex]\frac{3x=21}{3} =x=7[/tex]
This means that each senior ticket costs $7
I need helppp please
Step-by-step explanation:
3(2/3y) =3(-6)
2y=-18
2/2y= -18/2
y=-9
i have the question in the picture below but I have to put more words so here ya go
Answer:
I think the answer is either B or D
Step-by-step explanation:
Let's see
<ADT and <TDSBoth lies on a line .They makes a complete lineSo they are Linear pairs
Option B