Answer:
B) 13
Step-by-step explanation:
Average age means to calculate mean:
Mean = (Sum of all numbers)/(Number of numbers)
Mean = (14 + 14.5 + 12 + 11.5 + 15 + 13 + 10.5 + 13.5)/8
Mean = (104)/8
Mean = 13
Which of the following is an irrational number?
[Image holds question]
answer and step by step explanation needed please ..
Answer:
The answer is D
Step-by-step explanation:
Volume of a cube = edge x edge x edge
volume of one cube= 4x4x4=64
64x3= 192
Which equation shows the quadratic formula used correctly to solve 7x^2 = 9 + x for x?
Answer:
Step-by-step explanation:
We must rewrite 7x^2 = 9 + x in standard form first: 7x^2 - x - 9 = 0.
The coefficients are 7, -1 and -9, and so the discriminant b^2 - 4ac is
(1)^2 - 4(7)(-9) = 253.
The roots are:
-(-1) ± √253 1 ± √253
x = --------------------- = --------------------
2(7) 14
3) Using the picture, find the measure of side J.
A) 28√3
B)28
C)56
4) Using the same picture, find the measure of side K.
A) 28√3
B)28
C)56
Answer:
solution is in attachment
hope it helps
Which expression is equivalent to
30 - 20 ÷ x ⋅ 4?
30 - 20 ÷ (x ⋅ 4)
30 - (20 ÷ x) ⋅ 4
(30 - 20) ÷ x ⋅ 4
(30 - 20 ÷ x) ⋅ 4
Answer:
30 - (20 ÷ x) ⋅ 4
Step-by-step explanation:
HELP ME NOWWWWWW. thanks.
Answer:
LETTER C. PO 40 ang sagot
HELP! I’LL GIVE BRAINLIEST ANSWER
Answer:
d. 20°
Step-by-step explanation:
First, we need to solve for m<Q
m<Q+m<R+m<S=180°
where m<R=90° and m<S=70°
m<Q+90°+70°=180°
m<Q=20°
Since m<Q=m<M
Then, m<M=20°
Which expression is equivalent to 2⁻⁴ x 2⁴
Answer: You have to provide the options in order for people to help.
Step-by-step explanation:
What is the difference between the two rates of
change?
Function A
Function B.
7
14
21
Y
3
10
17
Answer: ben dover
Step-by-step explanation:
touch your toes ill show you where the wild goose goes
Help please ASAP! will give brainiest and other!!!!!
No robots pls!
The level words that you are weaks is represented by the equation y = 15
A. Graph the equation.
You learn ___ new vocabulary words per week.
B. How many vocabulary words do you learn after 5 weeks? You learn ____ words.
C. How many more vocabulary words do you learn after 6 weeks than after 4 weeks? You learn___ more words.
Answer:
A is 15, B is 75, and C is 30
Step-by-step explanation:
Answer:
a.
graph this on desmos
y=15x
you learn 15 new vocab words per week
b.
75 words in 5 weeks
c.
30 more words
Step-by-step explanation:
4 m
5 m
3 m
surface area =
Answer:94 m^2
Step-by-step explanation:
surface area equation for rectangle is 2*(a*b + a*c + b*c)
where a=4 b=5 and c=3
so substitute in all numbers and get:
Surface Area = 2×(4×5 + 4×3 + 5×3)
do the maths and got a solid 94 meters
(I squared because in this equation you are multiplying numbers that equal the area of a surface and not the whole volume which would be cubed)
URGENT 30 POINTS An engineer needs to find the length of a beam to support the beam holding the wall. If the two beams are perpendicular to one another, and a=4 m and b=1 m, find z. Give your answer to one decimal place.
The value of z in the given arrangement is 2 m.
What are similar triangles?Similar triangles are the triangles that look similar to each other, but their sizes might not be exactly the same.
Also,
Two triangles are said to be similar if their corresponding angles are congruent and the corresponding sides are in proportion.
Given that, an engineer needs to find the length of a beam to support the beam holding the wall, the two beams are perpendicular to one another, and a=4 m and b=1 m, we need to find z.
So, here we will use the concept of similar triangles,
According to the definition the corresponding sides are in proportion.
So, we get,
z/a = b/z
z² = 4
z = 2
Hence, the value of z in the given arrangement is 2 m.
Learn more about similar triangles, click;
https://brainly.com/question/14926756
#SPJ2
Keiko uses 6.9 pints of blue paint and white paint to paint her bedroom walls. 2/5 of this amount is blue paint, and the rest is white paint. How many pints of white paint did she use to paint her bedroom walls?
Answer: [tex]4.14\ \text{pints}[/tex]
Step-by-step explanation:
Given
Keiko uses 6.9 Pints of blue and white paint
If the fraction of blue paint is [tex]\frac{2}{5}[/tex], then thr fraction of white paint is
[tex]1-\dfrac{2}{5}=\dfrac{3}{5}[/tex]
Amount of white paint is
[tex]\Rightarrow \dfrac{3}{5}\times 6.9=4.14\ \text{pints}[/tex]
what is the length of AC
Answer:
16
Step-by-step explanation:
so if squared by 2 means times the number by itself. would 2 squared of 60 be 120?
43,5% of this skeleton's body is his mermaid tail.
Write the percent as a decimal.
Answer:
0.435
Step-by-step explanation:
43.5*0.01=0.435
The math department is putting together an order for new calculators. The
students are asked what model and color they prefer.
Which statement about the students' preferences is true?
The statement (D) "the fewest students prefer black Model A1 calculators" is correct.
What is a conditional relative frequency?It is defined as the frequency that can be evaluated by the two-way frequency table. Usually, we can obtain this frequency by dividing the frequency that is not in the total frequency cell to total frequency.
There is the fewest value is 0.05
More students prefer Model C3 calculators than Model A1 calculators, mathematically,
0.30 > 0.45 (false)
More students prefer black calculators than white calculators, mathematically,
0.35 > 0.65 (false)
Similarly, statement third is also false.
Thus, the statement (D) “the fewest students prefer black Model A1 calculators” is correct.
Learn more about the conditional relative frequency here:
brainly.com/question/8358304
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Some one please help me get the answer
If you get it correct, I will give you a lot of points
Answer:186
Step-by-step explanation:
P is a prime number.
Show that p²+6 could be either even or odd
p ² + 6 is even if p ² is even (the sum of two even numbers is even), and this happens only if p itself is even, i.e. if p = 2 since 2 is the only even prime.
All other primes p are odd, so p ² would be odd, and adding 6 would not change that (odd + even = odd).
help please I would appreciate it thank u
Answer:
radius = 7.5 cm
Step-by-step explanation:
Since M is the midpoint of the chord AB then OM is perpendicular to AB
Using Pythagoras' identity in right triangle OMB with hypotenuse OB, the radius of the circle, then
OB² = OM² + MB² = 4.5² + 6² = 20.25 + 36 = 56.25 ( take square root of both sides )
OB = radius = [tex]\sqrt{56.25}[/tex] = 7.5
Does negative 3 fourths times negative 5 sevenths equal negative 15 twenty-eighths? Sorry if it don't make sence
Answer:
-3/4* -5/7 = -15/28??
Step-by-step explanation:
Answer is correct!
And don’t worry! You make sense!
Sorry if I’m asking too much, but can I have Brainliest??
Some answers on this app be useless asfff bro .. like no I’m not finna go to ur bitly link and download the answer file, we all know that sh!! Is a virus wish .Just answer the darn questions I don’t got the time I’m literally struggling in fron of my computer and u can’t even give a decent answer .. smh this is my rant so dw
Answer:
da.mn im sorry....not rlly sorry bc i didnt do anything to u but yh.
Step-by-step explanation:
Question 11
2, 10, 50, ...
plz help me out!
Answer:
250
Step-by-step explanation:
Every number is multiplied by 5
2 x 5 = 10
10 x 5 = 50
50 x 5 = 250
Jameson puts $4,000 in graduation money in an account for 10 years. The interest rate is 4.2%. If he withdraws all of the money after 10 years, how much
does he take out?
Answer:
2,320
Step-by-step explanation:
4.2% gets taken every year and there is 10 year,so 4.2% s uqual to 0.042,so just mutiply 4000 by 0.042 which is 168,then times 168 by 10 which brings you to 1680 and 4000 subtracyed by 1680,which equals 2,320
Are the ratios 4:1 and 14:3 equivalent?
Answer:
False
Step-by-step explanation:
NO they are not equivalent
Find the least common multiple of 6c^3 and 15y
Answer:
The answer is 30c^3y
Step-by-step explanation:
The LCM is the smallest number that all the numbers can divide in.
what is the slope of the line?
Answer:
the slope is 3/2
Please help me with this math question.
Answer:
275 m^3
Step-by-step explanation:
The volume of a triangular pyramid is V=(1/3)Ah, where A is the area of the triangular base and h is the height.
First, let's find A, the area of the base. The area of a triangle is bh/2, where b is the base and h is the height.
In this question, 5 is the base and 15 is the height, so A=5*15/2=75/2.
Now we know A is 75/2, so let's go back to the formula for the volume of a pyramid. We are given h is 22, so
V=(1/3)(75/2)*22=275
A broker charges 70 per square foot to install windows how much does it cost to install the windows shown
70% of the magic tricks that Jade knows are card tricks. If she knows 14 card tricks, how many magic tricks does Jade know in all?
Answer:
20
Step-by-step explanation:
Given data
Let the number of magic tricks be x
we are told that she knows 70% of card trick which is 14 card tricks
hence we have
70/100*x= 14
0.7x= 14
x= 14/0.7
x=20
Hence the number of magic tricks she knows is 20