Answer:
sin^2(45) = (√2/2)^2 = 1/2
Step-by-step explanation:
sin2x = sin2 * x = 0.909x
sin(2(45)) = sin90 = 1
Hope this helps.
Answer:
The answer to this is [tex]\frac{1}{2}[/tex]
Step-by-step explanation:
I did the assignment, hope it helps! :)
what quadrilateral have all the attributes of rhombus
Answer:
A rhombus and a square since a square is also a rhombus.
PLs answer this question
Answer:
49/16
Step-by-step explanation:
make the fraction into a mixed number then multiply have answer
What is the format of this proof? Given: ∠ABC is a right angle, ∠DBC is a straight angle Prove: ∠ABD is a right angle A horizontal line has points D, B, C. A line extends vertically from point B to point A. Angle A B C is a right angle. A 2-column table has 8 rows. The first column is labeled Statements with entries angle A B C is a right angle, angle D B C is a straight angle, m angle A B C = 90 degrees, m angle D B C = 180 degrees, m angle A B D + m angle A B C = m angle D B C, m angle A B D + 90 degrees = 180 degrees, m angle A B D = 90 degrees, angle A B C is-congruent-to angle A B D. The second column is labeled Reasons with entries, given, given, definition of right angle, definition of straight angle, angle addition property, substitution property, subtraction property, and definition of right angle. two-column proof two-paragraph proof flowchart proof one-paragraph proof
Answer:
two-column proof
Step-by-step explanation:
i just did the quiz on ed .. i hope it helps :)
Answer:
A. Two column proof
Step-by-step explanation:
In Smallville the sales tax is 0.075 of the price. How much sales tax
do you pay on a $60 Superman costume?
Answer:
4 dollars 50 cents
Step-by-step explanation:
60*0.075=4.50
Andrew spent 75% of his $20 allowance to go to the movies. How much did he spend? Use at least 2 strategies.
PLEASE HELP
Answer:
$15
Step-by-step explanation:
For every pound a company spends on advertising, it spends £0.43 on its website. Express the amount spent on advertising to its website as a ratio in its simplest form.
Answer:
£1 : £0.43
Step-by-step explanation:
So to make the ratio, you need the amount of money spent on advertising and the money spent on its website
Website money = £0.43
Advertising money = £1
£1 : £0.43
There are 20 students in a 5th grade class. Four of these students will be selected to be patrols. In how many ways can the four patrols be selected?
Answer:
4845 ways
Step-by-step explanation:
We need to form groups of four students among the total of 20 students, and the order of the students inside the group does not matter, so we have a combination problem.
To solve this problem, we just need to find the combination of 20 choose 4:
C(20, 4) = 20! / (16! * 4!) = 20 * 19 * 18 * 17 / (4 * 3 * 2) = 4845
There are 4845 ways of selecting this group of four patrols.
Each homeroom must send two student representatives to each student council meeting. Mrs. Lincoln has 15 girls and 10 boys in her homeroom. If she randomly selects two students to attend the next meeting, find the probability of her choosing one girl and one boy?
Answer:
1/4
Step-by-step explanation:
Mrs. Lincoln has 15 girls and 10 boys in her homeroom. She randomly selects two students. The total number of students is 25.
The probability of choosing one girl is:
15 / 25 = 3 / 5
Now, 24 students are left.
The probability of choosing one boy is:
10 / 24 = 5 / 12
Therefore, the probability of choosing one girl and one boy is:
3 / 5 * 5 / 12
= 3 / 12
= 1/4
A playhouse is in the shape of a regular octagonal pyramid with a side length of 3 feet an a slant height of 12 feet. The wood used to build the walls of the playhouse costs $3 per square foot. What is the cost of the wood for the walls of the playhouse?
Answer: We just did these problems in my math class today! Ok, so you need to find the lateral surface area, or the area of the faces/walls. The formula for triangles is
1/2 • base • height. Sub in the #s, it would be 1/2 • 6 • 12
1/2•72
36
So now we know the area of one of the faces is 36inches^2, we can multiply that by 4, which is 144. 144•3($)= $432. To sum things up, $432 is the cost to build the walls of the playhouse, and we are not adding in the base, because the base is not a face!
Step-by-step explanation:
Find ONLY letter a: Lower Quartile
50 POINTS + BRAINLIEST
Can you please help me with this question i will give you a Brainiest and 12points
M = 3
....................
Answer:
m = 3
Step-by-step explanation:
10m = 10-5(m-7)
10m = -(5m-5×7)+10
10m = -(5m-35)+10
10m = -5m + 35 + 10
10m = -5m +45
15m = 45
15m/15 = 45/15
m = 3^2*5/3*5
m = 3^2-1
m = 3
what is the arc length of a semicircle with a diameter of 8
Answer:
[tex] \frac{88}{7} units[/tex]
Step-by-step explanation:
Circumference of semi-circle=
[tex]\pi \: r[/tex]
[tex] \frac{22}{7} \times 4 \\ \frac{88}{7} [/tex]
Do these side lengths make a right triangle? 6, 8, 9
Please I need help with this
Answer:
No
Step-by-step explanation:
they do not make a pythagorean triple. you can test with the pythagorean theorem
Answer:
Nah it doesn't 6 8 10 would though
help me me pl i do not under stand
Answer:
1/3 plus 5\6 si equal to 7\6
Step-by-step explanation:
1\3 X 2 is equal to 2\6 add it to 5\6 it will equal 7\6
Answer:
the correct answer is 2/6+5/6=7/6.
Step-by-step explanation:
hope this helps!
Help yesssssssdjdjdjdi
Answer:
246
Step-by-step explanation:
482 - 200 = 282
282 - 30 = 252
252 - 2 = 250
250 - 4 = 246
Or
482 - 236 = 246
Hope this helps. :)
Have a good day!
60% of what number is 150?
Answer:
90
Step-by-step explanation:
To solve this you must make a proportion of x/150 60/100. Then you need to find the relation between 100 and 150 which is x 1.5. Then apply the same thing to 60 which results in 90.
Answer: 250
You must set this up as a proportion
Remember the percent is always over 100
150/x=60/100
Then solve the proportion
60x=15000
Get the x by its self
15000/60 is 250
x=250
what is gct of $5000
Step-by-step explanation:
this is the answer bro or sis.
Mags is 2 years older than Vector. Which equation will
help you find Mags' age (m) if you know Vector's age (v)?
v = m + 2
m = V + 2
V-2=m
Answer:
m = v + 2
Step-by-step explanation:
Since Mags (m) is 2 years older than Vector (v)
You can use the equation V + 2 which is Vector's age + 2 years. Which would be equal to Mags' age.
Please help the question is in the picture
Answer: D: Parallel to the base
Step-by-step explanation:
Answer:
the answer should be D if i am wrong please tell me.
Step-by-step explanation:
A busy customer service agent handled 20 emails in 1/4 of a day. At that rate, how many emails could he handle in 1 day?
Step-by-step explanation:
20 mails in 1/4 day (0.25 day)
-> 1 day = 20/0.25 = 80 emails
A fraction is written in the form of a numerator and a denominator where the denominator is greater than the numerator.
1/4 day = 20 emails
1 day = 80 emails
The number of emails he could handle in a day is 80 emails.
What is a fraction?A fraction is written in the form of a numerator and a denominator where the denominator is greater than the numerator.
Example:
1/2, 1/3 is a fraction.
4/8 = 1/2 is a fraction
6/8 = 3/4 is a fraction.
We have,
The number of emails handled in 1/4 of a day = 20 emails.
This can be written as,
1/4 day = 20 emails
Multiply 4 on both sides.
4 x 1/4 day = 4 x 20 emails
1 day = 80 emails
Thus,
1/4 day = 20 emails
1 day = 80 emails
The number of emails he could handle in a day is 80 emails.
Learn more about fractions here:
https://brainly.com/question/24370499
#SPJ2
Answer part B (as part A is 75)
Answer:
because there is 180 degrees in a line. if 105 degrees is taken away from the line. then (180 - 105) is 75 degrees.
A cube has a side length of inch. It would take blocks with a side length of inch to fill the cube. It would take blocks with a side length of inch to fill the cube.
Complete question:
A cube has a side length of 1/3 inch.It would take _ blocks with a side length of 1/6 inch to fill the cube.
B)It would take _ blocks with a side length of 1/9 inch to fill the cube.
Answer:
a) 8 blocks
b) 27 blocks
Step-by-step explanation:
Here we need to find the volume of the cube and volume of the block.
To find volume of the cube, let's use the formula :
V = a³
Here a = [tex] \frac{1}{3}[/tex]
Therefore,
V = [tex] (\frac{1}{3})^3[/tex]
V = = [tex] \frac{1}{27}[/tex]
Volume of the cube is [tex] \frac{1}{27}[/tex]
To find volume of the block, let's use the formula:
V = a³
V = [tex] (\frac{1}{6})^3[/tex]
V = [tex] \frac{1}{216} [/tex]
To find the number of blocks, let's divide the volume of block from the volume of cube.
Therefore,
= [tex]\frac{\frac{1}{27}}{\frac{1}{216}}[/tex]
[tex] = \frac{1}{27} * 216 [/tex]
= 8
It would take 8 blocks with a side length of 1/6 inch to fill the cube.
B) Here we also need to find the volume of the cube and volume of the block.
To find volume of the cube, let's use the formula :
V = a³
Here a = [tex] \frac{1}{3}[/tex]
Therefore,
V = [tex] (\frac{1}{3})^3[/tex]
V = = [tex] \frac{1}{27}[/tex]
Volume of the cube is [tex] \frac{1}{27}[/tex]
To find volume of the block, let's use the formula:
V = a³
V = [tex](\frac{1}{9})^3[/tex]
V = [tex] \frac{1}{729} [/tex]
To find the number of blocks, let's divide the volume of block from the volume of cube.
Therefore,
= [tex] \frac{\frac{1}{27}}{\frac{1}{729}}[/tex]
[tex] = \frac{1}{27} * 729 [/tex]
= 27
It would take 27 blocks with a side length of 1/9 inch to fill the cube.
SHOW WORK FOR BRAINLIEST!
Two rectangular prisms, M and N, are mathematically similar. The volumes of M and N are 17 3 and 136 3, respectively. The height of N is 18 . Find the corresponding height of M.
Answer:
9 cm
Step-by-step explanation:
Volume of M= 17cm^3. Volume of N=136cm^3
Volume of N/Volume of M = k^3
136/17=8
Cube root of 8 =2
Now we know that k=2.
Height of N/2 =height of M
18/2= 9
Therefore, the height of M=9
If 8x=4
What is 2+12x?
Answer:
8
Step-by-step explanation:
If 8x = 4, then you can solve for x by dividing both sides by 8. Therefore, x = 4/8 or 1/2.
Then to solve 2 + 12x you simply plug in 1/2 for x.
2 + 12x
2 + 12(1/2)
2 + 6
8
Find the volume of a cone with radius 12 yd and height 4 yd. Use 3.14 for π. Compare the volumes of the two cones. Use pencil and paper. Pick different values for the radius and height and calculate the volume of two cones like the ones described here. Compare the volumes of these cones.
Answer:
Volume is 602.88
Step-by-step explanation:
Here, we are asked to
calculate the volume of the cone.
Mathematically, to do this, we need to use the formula for finding the volume of cone= 1/3 * pi *r^2 * h
now we know that radius is 12 yards and height 4 yards. Plugging these values we have;
V = 1/3 * 3.14 * 12^2 * 4
V = 602.88 inches^3
A cookie jar contains 3 chocolate chip cookies, 4 oatmeal raisin cookies, and 5 sugar cookies.
Event A = drawing a chocolate chip cookie on the first draw
Event B = drawing an oatmeal raisin cookie on the second draw
If two cookies are drawn from the jar, one after the other and not replaced, what is P(A and B) expressed in simplest form?
Only answer if you're sure please :)
A. 1/15
B. 1/11
C. 1/4
D. 4/11
Answer:
Answer B
Step-by-step explanation:
A is 1/4 bc there are 3 out of 12
B is 4/11 bc there are for oatmeal raisin and all in all 11 cookies left
so A*B is 1/4 * 4/11 = 4/44 = 1/11
(would indeed appreciate the brainliest if you appreciate the work)
Answer:
the answer is (b)
Step-by-step explanation:
sorry if im late lol
Work out 8 x
(3 + 7)
Answer:
Answer is 80
Step-by-step explanation:
PEMDAS (Parentheses - Exponents - Multiplication - Division - Addition - Subtraction)
Do (3+7) first which equals 10.
Your equation is then simply 8 x 10 which is 80.
Answer:72
Step-by-step explanation:
8 × (3+7) can be written as 8 (3+7)
Now,simplify
8 (3+7)
8 (10)
8×10
80 is the answer.
Please help, look at photo for question. (Math)
Answer:
f(-1) = 1
Step-by-step explanation:
f(x) = .5(1-x)
Let x = -1
f(-1) = .5(1- -1)
.5( 1+1)
.5(2)
1
Select the correct answer.
If the factors of quadratic function g are (x − 7) and (x + 3), what are the zeros of function g?
A.
-7 and -3
B.
-3 and 7
C.
3 and 7
D.
-7 and 3
Answer:
The correct option is (b).
Step-by-step explanation:
We are given with the factors of quadratic function. They are as follows :
(x − 7) and (x + 3)
It is required to find the zeroes of function g.
To find zeroes of function, it is required to put the factors equal to 0 i.e.
[tex](x-7)=0\\\\x=7[/tex]
and
[tex](x+3)=0\\\\x=-3[/tex]
From above calculations, we can say that the zeroes of function g are 7 and (-3). Hence, the correct option is (b).
There are 1300 students in a school. 48% of them are female. How many are male?
Answer:
676
Step-by-step explanation:
First find what 48 percent of 1300 is
1300*0.48=624
Then subtract the number of females from the total number of students.
1300 student -624 females=676 males.
Hope that's clear :)
Answer:
[tex]676[/tex]
Step-by-step explanation:
48 % of students are female. so first we have to fine the percentage of male.
[tex]48\% = female \\ 100\% - 48\% = 52\% \\ 52\% = male[/tex]
Now lets fine how many male students are there.
[tex]1300 \times \frac{52}{100} = 676[/tex]
hope this helps
brainliest appreciated
good luck! have a nice day !!