Answers
JUST IN CASE YOU DON’T UNDERSTAND:
coefficients are numbers that are placed next to variable(s) - aka x or y. So for instance, in the following: 7/9 x, 7/9 is the coefficient since it’s paired with an alphabet letter or a variable.
I hope that helped and that it wasn’t too confusing. Brainliest answer is always appreciated!
Answer:
Credit to the guy that has already answer. HE IS CORRECT!! THE ANSWER IS D=7/9 AND 6!!!!!!!!!!!!!!!
Step-by-step explanation:
click on the link below it shows a screenshot of the correct answer!!
Stay Safe Guys!!!!
Related Questions
Someone please help me out!
Answers
Answer:
S = {2,4,6,8} P(2) = 3/20 P(4) = 3/10 P(6) = 3/10 P(8)= 1/4
Step-by-step explanation:
There are 30 draws
She got the tile numbered 2 3 times
P(2) = 3/20 = .15
She got the tile numbered 4 6 times
P(4) = 6/20 = 3/10 = .3
She got the tile numbered 6 6 times
P(6) = 6/20 = 3/10 = .3
She got the tile numbered 8 5 times
P(8) = 5/20 = 1/4 = .25
Find the EXACT perimeter and EXACT area of triangle ABC (meaning radical form) BD=3 *will give brainliest*
Answers
Answer:
Perimeter = 4.5√3 + 4.5
Area = 3.375√3
Step-by-step explanation:
Well you can first see that triangle ABC is a 30°60°90° triangle.
Since angle A is 60 and it is bisected, you will have a small 30°60°90° triangle and a 120°30°30° triangle.
You can say that DA is congruent to BD by Base Angle Theorem.
DA = 3
By using the ratios of the sides of the 30°60°90° you get that CD is 1.5 and CA is 1.5√3
CD = 1.5
CA = 1.5√3
BC = 4.5
Area = (4.5 * 1.5√3) / 3 = 6.75√3 / 2
Area = 3.375√3
By using the 30°60°90° ratio again, you get that BA = 3√3
Perimeter = 1.5√3 + 3√3 + 4.5
Perimeter = 4.5√3 + 4.5
I'm not 100% sure that the answer is right so check it.
A water storage tank is in the shape of a hemisphere (half a sphere). If the radius is 26 ft, approximate the volume of the tank in cubic feet.
Answers
Answer:
36,811 cubic feet.
Step-by-step explanation:
Volume = 1/2 volume of a sphere
= 1/2 * 4/3 π r^3
= 2/3 * π r^3
R = 26 so
Volume of the tank = 2/3 * π 26^3
= 36811.09 feet^3.
The volume of the tank in cubic feet approximate is 36,811 cubic feet.
What is the volume of sphere?If the given sphere is of radius r units, then its volume is given as:
[tex]V= \dfrac{4}{3} \pi r^3 \: \rm unit^3[/tex]
We are given water storage tank is in the shape of a hemisphere (half a sphere). If the radius is 26 ft.
Therefore,
Volume = 1/2 volume of a sphere
= 1/2 * 4/3 π r^3
= 2/3 * π r^3
R = 26
Therefore, Volume of the tank = 2/3 π 26^3
= 36811.09 feet^3.
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3x + 5 = 2x + 8 =
help me plz
Answers
Answer:
x=3
Step-by-step explanation:
Answer:
The answer would be 3.
Step-by-step explanation:
Write a unit rate for the situation. 54$ for 3 tickets.
Answers
Answer:
It would be $18 because you would divide 54 by 3 and get $18 per ticket
Step-by-step explanation:
4/3 times 22/7 times 1/4 cubed
Answers
Answer:
88/1344
Step-by-step explanation:
What is the least common multiple of the two denominators?
6/8 4/32
A.18
B.12
C. 8
D.32
Answers
Answer:
d.32
Step-by-step explanation:
To get the Least Common Multiple (LCM) of 8 and 32 we need to factor each value first and then we choose all the factors which appear in any column and multiply them:
8: 222
32: 22222
LCM: 22222
The Least Common Multiple (LCM) is: 2 x 2 x 2 x 2 x 2 = 32
The least common multiple is = 32
The denominators are 8 and 32.
The multiples of 8 are = 8, 16, 24, 32, 40, ....
The multiples of 32 are = 32, 64, ....
So the least common multiple is = 32
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Using the following triangle, write a proof to verify that sinA/a=sinC/c
Write two different expressions for h and set the expressions equal to each other
Answers
Answer:
Proved: [tex]c\sin A=a\sin C\Rightarrow \frac{\sin A}{a}=\frac{\sin C}{c}[/tex]
Step-by-step explanation:
Given: A triangle
To prove: [tex]\frac{\sin A}{a}=\frac{\sin C}{c}[/tex]
Solution:
Trigonometry is a branch of mathematics that explains relationship between sides and angles of the triangle.
Sine of angle = side opposite to the angle / hypotenuse
In ΔADB,
[tex]\sin A=\frac{BD}{AB}=\frac{h}{c}\\\Rightarrow h=c\sin A\,\,\,(i)[/tex]
In ΔBDC,
[tex]\sin C=\frac{BD}{BC}=\frac{h}{a}\\\Rightarrow h=a\sin C\,\,\,(ii)[/tex]
From equations (i) and (ii),
[tex]c\sin A=a\sin C\\\frac{\sin A}{a}=\frac{\sin C}{c}[/tex]
Hence proved
Find the value of x. Then find mAB.
Answers
Answer:
16x - 5 = 15x
16x - 16x -5 = 15x - 16x
-5 = -x
-5 / -1 = -x / -1
x = 5
mAB = 5(5)
mAB = 25°
Step-by-step explanation:
1. set arc FA and arc CD equal to each other.
2. subtract 16x from both sides.
3. divide both sides by -1 to get x.
4. replace x by its value to solve for mAB.
A coin is tossed and a die is rolled. What is the probability that a tail was tossed and an even number was rolled?What is the probability that a head was tossed and a number larger than 4 was rolled?
Please Show Work! Thanks!
Answers
Answer:
First problem: 1/4 chance
Second problem: 1/6 chance of happening
Step-by-step explanation:
To find the probability we need to multiply the chance of each separate thing happening by each other in each example.
In the first example we have a 1/2 chance that a tail was tossed and 3/6 chance that an even number was rolled.
[tex]\frac{1}{2} *\frac{3}{6} = \frac{3}{12} =\frac{1}{4}[/tex]
So in the first example we have 1/4 chance of happening or 0.25
Same thing with the second example:
[tex]\frac{1}{2} *\frac{2}{6} = \frac{2}{12} =\frac{1}{6}[/tex]
what is -2(6a-2b+4c-9)
Answers
Answer:
-12a + 4b - 8c + 18
Step-by-step explanation:
To do this, you will need to use the Distributive Property. Multiply the number outside of the parenthesis by the terms inside of the parenthesis.
-2(6a - 2b + 4c - 9) becomes:
-12a + 4b - 8c + 18
Answer:
use a app that is call photomath
What is the product?
Three-fourths times 12.44
3.11
9.33
12
36
Awnser pls ill give a star
Answers
Answer:
9.33
Step-by-step explanation:
12.44=311/25
(3/4)×(311/25)=(3×311/4×25)=933/100=9.33
Answer:
B. 9.33
Step-by-step explanation:
I go with my gut and my gut tells me this the right answer ( I used a calculator).
the decimal expansion of 131 upon 120 will terminate after how many places of decimal A)1 b)2c) 3D) will not terminate
Answers
Answer:
c) 3
Step-by-step explanation:
Please help!You roll a 6-sided die two times.
What is the probability of rolling a number less than 4 and then rolling an odd number?
Write your answer as a percentage.
Answers
Answer:
25%
Step-by-step explanation:
[tex]6 \times 6 = 36 \\ 3 \times 3 = 9 \\ \frac{9}{36} = \frac{25}{100} [/tex]
Please help!!
I grant brainliest.
Answers
Answer:
x = 65, y = 63
Step-by-step explanation:
∠ EGA = ∠ HBG = 52° ( corresponding angles )
ED is a straight angle, thus
52 + y + 65 = 180, that is
y + 117 = 180 ( subtract 117 from both sides )
y = 63
-------------------------------------
∠ HGB = y = 63° ( vertical angles )
The sum of the 3 angles in a triangle = 180°, thus
x + 63 + 52 = 180
x + 115 = 180 ( subtract 115 from both sides )
x = 65
what is the total cost of a meal if the food cost $25 and there is a food tax of 3% and the waiter is tipped 15% of the food cost? Round to the nearest cent.
Answers
Answer:
$30
Step-by-step explanation:
If $25 is 100%,
$2.5 is 10%
$0.25 is 1%
$3.75 is 15%
$0.75 is 3%
Then add $25, $3.75 and 0.75 which is also equivalent to 100%+15%+3%=29.5 and if you rounded it up to the nearest cent it is 30
Bryna has $300 to open a checking account. She wants an account with the least amount of fees. She does not plan on using an ATM and her employer offers direct deposit.
A 6-column table with 3 rows. Column 1 has entries A, B, C. Column 2 is labeled Minimum Balance with entries 500 dollars, 250 dollars, 50 dollars. Column 3 is labeled Interest with entries 0.1 percent, 0 percent, 0 percent. Column 4 is labeled Overdraft protection with entries yes, no, no. Column 5 is labeled A T M Fees with entries 0 dollars for all A T M s, 0 dollars for A B C banks A T M s, 2 dollars per transaction. Column 6 is labeled Monthly Fee with entries 5 dollars, 10 dollars, 0 dollars with direct deposit.
Bryna should choose account
.
Answers
Answer:
Its C On Edge Just Took The Quiz
Step-by-step
Answer:
c
Step-by-step explanation:
took quiz 100%
Solve for the zeros of the quadratic function f(x) = 9.2 + 6x +1. Write the answer as a fraction.
Answers
Answer:
x = -1.7, or x = -17/10
Step-by-step explanation:
f(x) = 9.2 + 6x + 1 is a linear function and as such (and because the slope is not zero) has only one solution. Combining like terms, we get
f(x) = 10.2 + 6x = 0 (you must set this equal to zero if solving for zero(s).
Then 6x = -10.2, and x = -1.7, or x = -17/10
Which statements are true about the table of values?
Check all that apply.
O xy = 3
When x = 3, y = 1.
x varies directly with y.
k = 1
3
The graph of this table would not be linear.
Answers
Answer:
A: xy= 3
B: When x= 3, y = 1
E: The graph of this table would not be linear.
Step-by-step explanation:
Edge
Let a and b be real numbers where a b 0. Which of the following functions could represent the graph below?
f(x) = x(x – a) (x - 1)3
f(x) = (x - a)
- a)2(x – b)4
f(x) = x(x - a) 6(x – b)2
Answers
Answer:
C
Step-by-step explanation:
I took the test
The function which represents the graph given is f(x) = (x - a)²(x - b)⁴.
What are Polynomials?Polynomials are expressions which consist of one or more terms involving variables and coefficients connected with operations like multiplication, subtraction, addition and natural number powers of variables.
Given is a graph of a function.
The options f(x) = x(x - a)³(x - b)³ and the option f(x)=x(x - a)⁶(x - b)² is not possible since x = 0 is not a root of the given graph.
That is the graph does not pass through the point (0, c) for any c.
Remaining options are f(x) = (x - a)²(x - b)⁴ and f(x) = (x - a)⁵(x - b).
We know that, the graph of a polynomial function always touch the X axis at zeroes with even multiplicities.
So here multiplicity will be even.
So the correct one is f(x) = (x - a)²(x - b)⁴.
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45% of all 1st graders at Sierra Elementary School are female students. This year there are 54 female 1st graders at Sierra Elementary School. How many 1st graders are there at Sierra Elementary School this year?
Answers
Answer:
There are 120 1st graders at Sierra Elementary School this year
Step-by-step explanation:
Let n represent the total number of 1st graders at Sierra Elementary School
Since 45% of all 1st graders at Sierra Elementary School are female students and this year there are 54 female 1st graders, 45% of n is equal to 54
→ n([tex]\frac{45}{100}[/tex]) = 54
→ 45n = 5400
→ n = 120
Answer:
number of first grader at Sierra elementary school = 120
Step-by-step explanation:
The question says 45% of 1st graders at Sierra Elementary school are female student . This year there are 54 female 1st graders at Sierra Elementary school .The number of 1st graders at Sierra elementary school can be calculated below .
Let
the number of 1st grader = a
45 % of a = female population
This year the female 1st graders at the Sierra elementary school are 54. This can represented as follows
45% × a = 54
45/100 × a = 54
45a/100 = 54
cross multiply
45a = 5400
divide both sides by 45
a = 5400/45
a = 120
number of first grader = 120
Evaluate 15 - 151.
-10
10
20
-20
Answers
Answer:
10
Step-by-step explanation:
15 - |5|
The absolute value of 5 is 5
15 - 5
10
Answer:
10
Step-by-step explanation:
assuming those are absolute value bars it is basically 15-5=10 so 10 is your answer!
Can someone answer this question please please help me I really need it if it’s correct I will mark you brainliest .
Answers
Answer:
169.65 for volume.
Step-by-step explanation:
Volume = πr2h
= π×32×6
= 54π
= 169.64600329385 (unit^3)
I Hope this helps!!!
Answer:
339.12 squared (for surface area)
Step-by-step explanation:
radius=6
area of the circles is, 6*6= 36 * 3.14= 113.04
there are 2 circles so we multiply that by 2 to get 226.08
now to find the perimeter of a circle it is the radius * pi, so that would be 6*3.14= 18.84 now we have a height of 6 so we multiply that by 6 and get 113.04 now add up all our numbers and get 339.12
Which expression shows that the quotient
2/3x-1 ÷ 6/6x-1
is also a rational expression? Assume x
1/3 and x 1/6
Answers
Answer:
Option (2)
Step-by-step explanation:
Given expression is [tex]\frac{2}{(3x-1)}[/tex] ÷ [tex]\frac{6}{6x-1}[/tex]
We further simplify this expression,
[tex]\frac{2}{(3x-1)}[/tex] ÷ [tex]\frac{6}{6x-1}[/tex]
= [tex]\frac{2}{(3x-1)}\times \frac{6x-1}{6}[/tex]
= [tex]\frac{6x-1}{3(3x-1)}[/tex]
= [tex]\frac{6x-1}{(9x-3)}[/tex]
Therefore, [tex]\frac{6x-1}{(9x-3)}[/tex] will be the quotient of the given expression.
[tex]x\neq \frac{1}{3}[/tex] and [tex]x\neq \frac{1}{6}[/tex] for which the given expression is not defined.
Option (2) will be the answer.
Answer:
B
Step-by-step explanation:
After returning to South Africa from Algeria in 1964, Nelson Mandela was
Arrested and imprisoned
Elected to the presidency
Educated in guerrilla tactics
Finally granted his freedom
Answers
Answer:
arrested and imprisoned.
Nelson Mandela was arrested an imprisoned by the Apartheid regime when he returned from Algeria.
Who is Nelson Mandela?Nelson Mandela was a know nationalist in South Africa and a strong advocate for the liberation of South Africa from the Apartheid in which the non-white South African's were segregated.
Nelson Mandela was educated in Algeria as a lawyer. When he returned in 1964, he was arrested and imprisoned.
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Find the slope,
Use this form example: y=Mx+b
Answers
Answer:
The slope is 1 or just x
Step-by-step explanation:
rise/run (rise over run) to find the slope
The graph of f(x) is shown.
On a coordinate plane, a parabola opens up. It goes through (negative 1.75, 4), has a vertex of (negative 0.25, negative 3), and goes through (1.4, 4). Solid circles appear on the parabola at (negative 1.6, 3.1), (negative 1.2, 0), (negative 0.25, negative 3), (0.8, 0), (1.2, 3.1).
Over which interval on the x-axis is there a negative rate of change in the function?
–2 to –1
–1.5 to 0.5
0 to 1
0.5 to 1.5
Answers
Answer:
The answer to this question is A, or -2 to -1.
Hope this helps.
Answer: A
Step-by-step explanation:
Jada rewrites 5•3^x as 15x. Do you agree with Jada that these are equivalent expressions? Explain your reasoning. Help me pleasee
Answers
Answer:yes
Step-by-step explanation:
5*3=15
5*3x=15x
The expression 15x is not the equivalent of the expression 5•3ˣ.
What is an exponential function?An exponential function is defined as a function whose value is a constant raised to the power of an argument is called an exponential function.
It is a relation of the form y = aˣ in mathematics, where x is the independent variable
Jada rewrites 5•3ˣ as 15x.
We do not agree with Jada that these are equivalent expressions because she made the mistake.
As per the given obtained expression, we can see that here write 15 as the coefficient of variable x which is actually the power of an argument. the original expression was an exponential function that has 3 representing the base. thus, it cannot be multiplied the 5 by 3.
Thus, the expression 15x is not the equivalent of the expression 5•3ˣ.
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20,30,40,50,60,70,80 the mean of the number set is
Answers
Answer:
Mean is 50
Step-by-step explanation:
20 + 30 + 40 + 50 + 60 + 70 + 80 = 350
350 / 7 = 50
Answer:
50
Step-by-step explanation:
Mean means average number which sum of all numbers divided how many numbers we are investigating
We are investigating 7 numbers
The total sum of these numbers are:
20 + 30 + 40 +50+ 60+70+80= 350
Mean = 350/7= 50
There are 1200 students in a school. 51.5% of them are male. How many are female
Answers
Answer:
Step-by-step explanation: