Answer:
558
Step-by-step explanation:
5.58 × 10²
558
The ratio of boys to girls in Ms. Jefferson's class is 3 to 4. There are 16 girls in the
class.
What is the total number of students in Ms. Jefferson's class?
Answer: 28
Step-by-step explanation:
there are 3 boys for every 4 girls, so 4 times 4 is equal to 16. Now just multiply 3 times 4. 16 + 12 = 28.
In ABC, mC = 30 and a = 8. If the area of the triangle is 12, what is the length of side b?
show work pls
9514 1404 393
Answer:
b = 6
Step-by-step explanation:
The area is given by the formula ...
Area = 1/2·ab·sin(C)
12 = (1/2)(8)b·(1/2) . . . . . fill in the given values
12 = 2b . . . . . . . . . . . simplify
6 = b . . . . . . . . . . . divide by 2
The length of side b is 6 units.
Please Help-
K + ⅓ = 5 ⅛ | K = ?
Show Your Reasoning.
Answer:
[tex]4\frac{19}{24}[/tex]
Step-by-step explanation:
I hope I did this right:
So first thing to do is set up the equation.
[tex]K + \frac{1}{3} = 5\frac{1}{8}[/tex]
Next thing to to is subtract 1/3 from both sides to get:
[tex]K = 5\frac{1}{8} - \frac{1}{3}[/tex]
Next up, you will multiply each of the fractions by the opposing value
(multiply 1/8 by 3 and 1/3 by 8)
[tex]K = 5\frac{3}{24}[/tex][tex]-\frac{8}{24}[/tex]
Alright almost done, by multiplying 24 by 5 you get 120, that will go in the numerator to make the math a lot easier.
K = [tex]\frac{123}{24}[/tex][tex]-\frac{8}{24}[/tex]
Finally, you subtract 123 over 24 by 8 over 24.
K = [tex]\frac{123}{24} - \frac{8}{24} = \frac{115}{24}[/tex]
Then just simplfy the 115/24 to get
[tex]4\frac{19}{24}[/tex]
There are 486 hamsters at a private showing of a new documentary about humans. If there are 12 seats in each row, about how many rows will the hamsters fill? Choose the best estimate.
A. 20
B.4
C.40
D.60
Answer:
C, 40
Step-by-step explanation:
If there are 12 seats in each row, and 486 hamsters total, then we can safely assume one hamster takes up one seat.
To find out how many rows they can take, we need to divide the number of hamsters by the number of seats to get 486 / 12 approximately equals 40.
Answer:
C.
Step-by-step explanation:
Take the first two numbers of 486.
How many times does 12 fit into 48?
4 times.
Since all of the estimations do not have any form of individual single digits (as they do normally), we would dismiss the 6 and use its place just as a '0.'
40.
Hope this helped!
Answer this question to get marked as brainliest!!!!
Answer:
The radius is 4.5
Step-by-step explanation:
Well circumfrence is basically
2πr=Circumference
In this case
2πr= 28.26
π is about 3.14
2*3.14*r=28.26
Now combine
6.28r=28.26
Now solve
r=4.5
Describe the horizontal cross section of the triangular pyramid.
A.triangle
B.rectangle
C.trapezoid
D.square
What is the equation of the line that is parallel to the
given line and has an x-intercept of -3?
4
3
2
2
+
(3, 1)
x
5 4 -3 -2 -1
10,t1)
2
-3
O y=xx+3
O y=x+2
O y=-x+3
O y=x+2
Answer:
y=x+3
Step-by-step explanation:
a team of 10 players is to be selected from a class of 6 girls and 7 boys. match each scenario to its probability
Step-by-step explanation:
The selection of r objects out of n is done in
many ways.
The total number of selections 10 that we can make from 6+7=13 students is
thus, the sample space of the experiment is 286
A.
"The probability that a randomly chosen team includes all 6 girls in the class."
total number of group of 10 which include all girls is C(7, 4), because the girls are fixed, and the remaining 4 is to be completed from the 7 boys, which can be done in C(7, 4) many ways.
P(all 6 girls chosen)=35/286=0.12
B.
"The probability that a randomly chosen team has 3 girls and 7 boys."
with the same logic as in A, the number of groups were all 7 boys are in, is
so the probability is 20/286=0.07
C.
"The probability that a randomly chosen team has either 4 or 6 boys."
case 1: the team has 4 boys and 6 girls
this was already calculated in part A, it is 0.12.
case 2, the team has 6 boys and 4 girls.
there C(7, 6)*C(6, 4) ,many ways of doing this, because any selection of the boys which can be done in C(7, 6) ways, can be combined with any selection of the girls.
the probability is 105/286=0.367
since case 1 and case 2 are disjoint, that is either one or the other happen, then we add the probabilities:
0.12+0.367=0.487 (approximately = 0.49)
D.
"The probability that a randomly chosen team has 5 girls and 5 boys."
selecting 5 boys and 5 girls can be done in
many ways,
so the probability is 126/286=0.44
Did this help??
Answer:
It was right!
Step-by-step explanation:
Which graph can be used to find the solution(s) to x2 – 1 = 3?
Answer: D
Step-by-step explanation:
right on edge
Please help ASAP!!!!!
Alexandra buys sweatshirts for $12 each. In her store, she sells each sweatshirt for $30.
Part B
During a clearance sale, Alexandra discounts the Halloween sweatshirts by 55%. What is the percentage of profit Alexandra will make on each Halloween sweatshirt she sells? Show your work or explain your answer.
Please and thank you!! And please if you can explain how you got the answer.
Answer:
A is 360
Step-by-step explanation:
Answer:
Step-by-step explanation:
Multiply $30 by .25 you get, it's $7.50so you subtract $7.50 from $30 and you get $22.50. Then multiply 2 (sweaters) by $22.50 and you get $45,but wait you still have to multiply that sales tax so you multiply .04 by $45 and you get $1.80, later you subtract $1.80 from $45 and you get $43.20(the cost of the two sweaters) I did part1 only cuz' no I have no time left Sorry for the inconvenience
geomtry 20 points: find m
Answer:
it is not factorable
Step-by-step explanation:
it is not factorable
Plzz I asked this three times! The Functions r and s are defined as follows.
r(x)=-2x+2
s(x)=x^2+2
Find the value of s(r(2)).
Answer:
s(r(2)) = 6
Step-by-step explanation:
You would first solve for r(2). You then input r(2) which equals -2 into s(r(2)).
r(x)= -2x + 2
r(2)= -2(2) + 2
r(2)= -4 +2
r(2)= -2
s(x)=x² + 2
s(r(2)) = (-2)² +2
s(r(2)) = 6
Find the area for this problem
Answer:
63 for the whole figure, for the different shaded regions it goes as follows, 17.5 for the white area and 45.5 for the grey area
Step-by-step explanation:
Find the interest in this equation and give an explanation.
Math help pls all 4 questions please
Answer:
a)32500
b)0.00604
c)2.4×10^6
d)1.47x10-³
Step-by-step explanation:
plz can i get brainliest:)
PLEASE HELP IM CONFUSED... Which statement about the figure above is true?
Answer:
it would make most sense as the second answer or the one with the yellow dot next to it
Step-by-step explanation:
Answer:
B
Step-by-step explanation:
AB is parallel to CD because neither lines cross
Please help! Write an equation, then solve for x
Answer:
x=30
Step-by-step explanation:
4x+2x+3x +3x=360. .... (angles of the quadrilateral add up to 360)
12x=360
12x/12=360/12
x=30
A = {multiples of 3 between 20 and 32}
B = {odd numbers between 20 and 32}
C = {even numbers between 20 and 32}
a) List the members of A U B
Answer:
A={21,24,27,30}
B={21,27}
C={24,30}
Step-by-step explanation:
a)A U B={21,24,27,30}
b)A n C ={24,30}
9514 1404 393
Answer:
A ∪ B = {21, 23, 24, 25, 27, 29, 30, 31}
A ∩ C = {24, 30}
Step-by-step explanation:
A = {21, 24, 27, 30} . . . . . . . . . . . . . multiples of 3
B = {21, 23, 25, 27, 29, 31} . . . . . . . odd numbers
C = {20, 22, 24, 26, 28, 30, 32} . . . even numbers
The union is the list of numbers in either set.
A ∪ B = {21, 23, 24, 25, 27, 29, 30, 31}
The intersection is the list of numbers in both sets.
A ∩ C = {24, 30}
Which of the following statements about the image below is true?
W
x
o Line UR and Line QS are parallel.
o ZQRT and ZT RU are supplementary.
O Line TX and Line OS are perpendicular.
The measure of ZSW X is 108.
Based on the linear pair postulate, the statement that is true is: D. m∠SWX = 108°.
What is the Linear Pair Postulate?According to the linear pair postulate, the sum of angles that form a linear pair equals 180 degrees.
72° and ∠SWX are a linear pair. Therefore:
m∠SWX = 180 - 72
m∠SWX = 108°
The statement that is true is: D. m∠SWX = 108°
Learn more about the linear pair postulate on:
https://brainly.com/question/13890989
#SPJ1
The table shows the proportional relationship between the number of computers
a company sold, x, and the profit that the company made, y. The profit, y, can be
written in terms of x, the number of computers sold: y = What expression
completes the equation?
Profit on Sales
Number of Computers Sold
Profit (dollars)
3
450
7
1050
11
1650
15
2250
Answer:
y = 150x
Step-by-step explanation:
There is a proportional relationship between number of computers sold (x) and profit generated (y)
y ∝ x
y = kx
Here, k = proportionality constant
From the table given,
At y = 450 and x = 3,
450 = k(3)
k = 150
Therefore, expression that represents the proportional relationship will be,
y = 150x
Can SOMEBODYYY please do the maths!!! PLeassssssssssssseeeeeeee
Answer:
see belowStep-by-step explanation:
Question-6:we are given a equation
[tex] \sf \displaystyle \: \log_{4}( - x) + \log_{4}( 6 - x) = 2[/tex]
to solve so
recall logarithm multiplication law:
[tex] \sf \displaystyle \: \log_{4}( - x \times (6 - x)) = 2[/tex]
simplify multiplication:
[tex] \sf \displaystyle \: \log_{4}( - 6 x + {x}^{2} ) = 2[/tex]
remember [tex]\displaystyle \log_{4}(4^2)=2[/tex]
so
[tex] \sf \displaystyle \: \log_{4}( - 6 x + {x}^{2} ) = \log_{4}( {4}^{2} ) [/tex]
cancel out [tex]\log_4[/tex] from both sides:
[tex] \sf \displaystyle \: - 6 x + {x}^{2} = {4}^{2} [/tex]
simplify squares:
[tex] \sf \displaystyle \: - 6 x + {x}^{2} = 16[/tex]
move left hand side expression to right hand side and change its sign:
since we are moving left hand side expression to right hand side there'll be only 0 left in the left hand side
[tex] \sf \displaystyle \: - 6 x + {x}^{2} - 16 = 0[/tex]
rewrite it to standard form i.e ax²+bx+c=0
[tex] \sf \displaystyle \: {x}^{2} - 6x - 16 = 0[/tex]
rewrite -6x as 2x-8x:
[tex] \sf \displaystyle \: {x}^{2} + 2x - 8x - 16 = 0[/tex]
factor out x and 8:
[tex] \sf \displaystyle \: x {(x}^{} + 2) - 8(x + 2) = 0[/tex]
group:
[tex] \sf \displaystyle \: (x - 8){(x}^{} + 2) = 0[/tex]
[tex] \displaystyle \: x = 8 \\ x = - 2 [/tex]
[tex] \therefore \: x = - 2[/tex]
Question-7:move left hand side log to right hand side:
[tex] \displaystyle \: \log(x ) + \log(x - 21) = 2 [/tex]
use mutilation logarithm rule;
[tex] \displaystyle \: \log( {x}^{2} - 21x) = 2 [/tex]
[tex]\log(10^2)=2[/tex] so
[tex] \displaystyle \: \log( {x}^{2} - 21x) = \log({10}^{2} )[/tex]
cancel out log from both sides:
[tex] \displaystyle \: {x}^{2} - 21x = 100[/tex]
make it standard form:
[tex] \displaystyle \: {x}^{2} - 21x - 100= 0[/tex]
factor:
[tex] \displaystyle \: {(x} + 4)(x - 25)= 0[/tex]
so
[tex] \displaystyle \: x = 25[/tex]
The volume is 120.9 in. What is the missing dimension (X)
*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆**☆*――*☆*――*☆*――*☆
Answer: x = 2.5
Explanation:
5.2 * 9.3 * x = 120.9
120.9 / 5.2 = 9.3 * x
23.25 = 9.3 * x
23.25 / 9.3 = x
x = 2.5
I hope this helped!
<!> Brainliest is appreciated! <!>
- Zack Slocum
*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆**☆*――*☆*――*☆*――*☆
HELP I'M FAILING .....
so if you have 300 coins and you take away half how much do you have left
Select the margin of error that corresponds to the sample mean that corresponds to each population:
A population mean of 360, a standard deviation of 4, and a margin of error of 2.5%
369
368
367
Answer:
(351.04, 368.96)
range values of 1.96 standard deviation are 352.16 to 367.84
answer is 367
You decide to buy locally sourced watermelon for your food truck. You meet with a farmer on Long Island that has a rectangular watermelon farm with an area of 1000x + 750 feet squared. What is the largest possible perimeter of the farm?
Answer: 126.48x+109.56 would be the largest possible perimeter if the area is 1000x + 750.
Step-by-step explanation: Not 100% certain of this answer.
find square root...
31.62x+27.39
that would give us 4 sides and since perimeter of rectangle is 2l+2w...
4(31.62x+27.39)=
126.48x+109.56 would be the largest possible perimeter if the area is 1000x + 750.
Someone please help me I’ll give out brainliest please dont answer if you don’t know
Answer:
x = 27
Step-by-step explanation:
1/3 x +9 = 18
1/3 x = 18 - 9
1/3 x =9
3* 1/3 x = 9*3
x= 27
Explain how to use the standard normal table to find the probability associated with the shaded area under the curve
Answer:
to find the area to the right positive z-score begin by reading off the area in the standard mormal distribution table, since the total area under the bell curve is 1 we subtract the area from the table from 1. for example the area to the left of z=1.02 is given in the table as 0.846
Step-by-step explanation:
right answer
How would u do this?
brainliest to correct answer !!
Answer:
$810 and the other is $730
$80 more
Step-by-step explanation:
.02 x 8000 = 160
160 + 650 = 810
.06 x 8000 = 480
480 + 250 = 730
810-730 = 80
AABC^ A DEF
which of the following statements is not true?
Answer:
BC =De is incorect
Step-by-step explanation:
De would be equal to Ab not Bc