Answer:
15
Step-by-step explanation:
You would divide 2 by 12 first and then multiply it by 90.
Answer:
Step-by-step explanation:
90 * (2 ÷ 12)
90 *([tex]\frac{1}{6}[/tex])
90*1/6
90/6
15
therefore 15 is the required answer.
Write an explicit formula for a_n, the nth term of the sequence 4, -20, 100, ...
Answer:
[tex]a_{n}[/tex] = 4 [tex](-5)^{n-1}[/tex]
Step-by-step explanation:
There is a common ratio r between consecutive terms , that is
r = - 20 ÷ 4 = 100 ÷ - 20 = - 5
This indicates the sequence is geometric with nth term ( explicit formula )
[tex]a_{n}[/tex] = a₁ [tex](r)^{n-1}[/tex]
where a₁ is the first term and r the common ratio
Here a₁ = 4 and r = - 5 , then
[tex]a_{n}[/tex] = 4 [tex](-5)^{n-1}[/tex]
please explain fully and i give brainiest thanks and 5 stars
Answer:
[tex]a=7,\\b=3[/tex]
Step-by-step explanation:
The area of a rectangle is equal to [tex]A=l\cdot w[/tex], where [tex]l[/tex] is the length of the rectangle and [tex]w[/tex] is the width of the rectangle. In a rectangle, opposite sides are equal.
Therefore, we can write the following system of equations:
[tex]\begin{cases}a\cdot (9+b)=84,\\a\cdot b=21\end{cases}[/tex]
Expand the first equation:
[tex]9a+ab=84[/tex]
Substitute the second equation into the first ([tex]ab=21[/tex]):
[tex]9a+21=84,\\9a=63,\\a=\boxed{7}[/tex]
Solving for [tex]b[/tex]:
[tex]7b=21,\\b=\frac{21}{7}=\boxed{3}[/tex]
Answer:
Step-by-step explanation:
Hope this helps u!!
EASY EASY EASY EASY EASY EASYYYYY what is the number following k? before k? what is their sum
ANSWER PLSSS. WHOVER ANSWERS FIRST IS BRAINLIEST
Answer:
following k is l
before k is j
Sum j + k + l
Step-by-step explanation:
I think there may be something missing from your question.
Answer:
um, K=1? I think you are missing stuff from your question cuz all you gave us was K. So, before K is 0 and after is 2
Step-by-step explanation:
If K were to equal one, It Would go 0, 1(K), 2
So The Sum Could Be Three ( 3 )
solve for x round to the nearest tenth if necessary
Answer:
x = 74.4
Step-by-step explanation:
tan = opp/adj
tan42 = 67 / x
x = 67/tan42
use calculator
x = 74.411038493555922
rounded
x = 74.4
Answer fast again important
Answer: 17 square inches.
Step-by-step explanation: Area of a triangle is 1/2 x b x h. We can just take the area of half of the whole triangle, and double it. In this case, half of the triangle has an area of 1/2 x 3.4 x 5 = 8.5. Doubling it is the same is doing 8.5 x 2, which equals 17.
Which of the binomials below is a factor of this expression?
4x² - 25y2z2
O A. 4x - 5yz
B. 4x2 - 5y2 22
O c. 2x2-5y2 2
O D. 2x - 5yz
Answer:
the answer is D
1.step by step explanation :
[tex]4 {x}^{2 } - 25 {y}^{2}{z}^{2} [/tex]
[tex] \sqrt{4 {x}^{2} } - \sqrt{25 {y}^{2} } {z}^{2} [/tex]
2x-5yz
Find the percentage of change from 76 inches to 99 inches.
Answer: 30.26%
Step-by-step explanation:
Answer:
Detailed answer :where : 76 is the old value and 99 is the new value . in this case we have a positive change ( increase) of 30.2631578947 percent because the new value is greater than the old value.......Help me please Help me please Help me please Help me please
Answer:
y=-3/4x+3
Step-by-step explanation:
the slope is -3/4
in this case, y=mx+b
so y=-3/4x+b
b is the y intercept, so it would be 3
altogether, y=-3/4x+3
Solve for x. -6 + 8x = 42 please help 10 pts!
Answer:
x = 6
Step-by-step explanation:
Given
- 6 + 8x = 42 ( add 6 to both sides )
8x = 48 ( divide both sides by 8 )
x = 6
What is constant of proportionality? I'm still having trouble understanding it. Can someone please give me a give problems and tell me how to find the COP (constant of proportionality) <3 thamks.
Answer:
See Explanation
Step-by-step explanation:
Given two variables (say x and y); the constant of proportionality is the ratio between these to variables.
Illustration; y is directly proportional to x
The above statement can be represented as:
[tex]y\ \alpha\ x[/tex]
When converted to an equation, you get
[tex]y\ =k x[/tex]
k, in the above equation, represents the constant of proportionality
Divide both sides by x to solve for k
[tex]k = \frac{y}{x}[/tex]
Take for instance: [tex]y = 3x[/tex]
Divide both sides by x
[tex]\frac{y}{x} = 3[/tex] --- 3 is the constant of proportionality
The length of a rectangular plot is 9/2 times that of it's breadth. If the area of the plot is 200
square meters, then what is it's length?
Answer:
The length of the rectangular plot is 30 m
Step-by-step explanation:
Mathematically, the area of a rectangle is the product of its length and width
Let us have the length as x m ; for the length to be 9/2 of the breadth, it means the breadth is 2/9 of the length
so we have the breadth as 2/9 * x = 2x/9
The product of the two equals the area which is 200 square meters
thus, we have it that;
x * 2x/9 = 200
2x^2 = 9 * 200
x^2 = 1800/2
x^2 = 900
x = √900
x = 30 m
the sum of the two fractions is 9/26. if one of the fraction is 1/13, find the other
Answer:
7/26
Step-by-step explanation:
let the other fraction be x
according to the question,
1/13 +x =9/26
x = 9/26 - 1/13
take lcm of the denominator . lcm=26
x = 9*1 - 1*2/26
x = 9-2/26
x=7/26
What is the name of the point located at (4, 3)?
A. Point M
B. Point P
C. Point W
D. Point X
Answer:
Point X
Step-by-step explanation:
Okay so to find the answer to this one simply go to the origin (0,0), then go over 4 and then up 3
The point located at point (4,3) would be point X
Substitute the given side lengths into the equation for the Pythagorean Theorem.
Answer:
15 is the missing side (hypotenuse)h
Step-by-step explanation:
A^2+b^2=c^2
9^2+12^2=c^2
81+144=c^2
225=c^2
15=c
Solve the following system of equations by substitution. PLEASE HELP!
Answer:
(1,-1)
Step-by-step explanation:
y = -1
5x+7y = -2
Substitute the first equation into the second
5x + 7(-1) =-2
5x -7 = -2
Add 7 to each side
5x-7+7 = -2+7
5x= 5
Divide by 5
5x/5 = 5/5
x =1
(1,-1)
The circumference of a circle is 8.34cm. Find the length of the diameter. Give your answer rounded to 2 DP.
Answer:
Diameter, D = 2.65 cm
Step-by-step explanation:
Given the following data;
Circumference of circle = 8.34 cm
To find the length of its diameter;
Mathematically, circumference of a circle is equal to;
C = πD
Where;
C is the circumference of a circle.D is the diameter of a circle.Pie, π = 3.142Substituting into the formula, we have;
8.34 = 3.142 * D
[tex] D = \frac {8.34}{3.142} [/tex]
Diameter, D = 2.65 cm
Find the x-intercept and y-intercept of the graph of the equation 2y = 3x - 6.
Given:
The equation is:
[tex]2y=3x-6[/tex]
To find:
The x-intercept and y-intercept of the graph of the given equation.
Solution:
We have,
[tex]2y=3x-6[/tex]
Substitute [tex]y=0[/tex] to find the x-intercept.
[tex]2(0)=3x-6[/tex]
[tex]0+6=3x[/tex]
[tex]\dfrac{6}{3}=x[/tex]
[tex]2=x[/tex]
So, the x-intercept of the graph of the given equation is 2.
Substitute [tex]x=0[/tex] to find the y-intercept.
[tex]2y=3(0)-6[/tex]
[tex]2y=-6[/tex]
[tex]y=\dfrac{-6}{2}[/tex]
[tex]y=-3[/tex]
So, the y-intercept of the graph of the given equation is -3.
Therefore, the x-intercept is 2 and the y-intercept is -3.
in the figure what is the sum of the measures a,b,c,d,e and f of the angles marked.
Answer:
a right angle
b acute angle
c obtuse angle
d obtuse angle
e acute
f obtuse
how to solve numbers 4-5
Answer:
x^2+7x+6
Step-by-step explanation:
can someone pls help for brainlest
Answer:
A
Step-by-step explanation:
52-(20+20+8)
The distance from the center of a Ferris Wheel to a person who is riding is 25 feet. What Distance does a person travel if the Ferris wheel rotates through an angle of 4.1 radians? Round your answer to nearest tenth of a foot
Answer:
322.0 ft
Step-by-step explanation:
d = ∅r
d = 4.1 π * 25
d = 322.013246993
Rounded
322.0 ft
Solve -33 < 12x + 15 99.
Find the measure of the missing angles. (someone help this is so urgent [cry])
Answer:
b=77
c = 103
Step-by-step explanation:
b and 77 are vertical angles and vertical angles are equal
b= 77
c and 77 are supplemental angles and supplemental angles add to 180
c+77 =180
c = 180-77
c =103
[tex] \large \sf \star \: \blue{Answer} \: \star[/tex]
[tex] \small \sf \mapsto\: b = \fbox{77 °} [/tex]
[tex] \small \sf \mapsto \: c = \fbox{ 103 °}[/tex]
Step-by-step explanation:Here,
Angle b and 77° both are vertical angles . So, both angles are equal . b = 77 °And,
Angle b and angle c are on straight line so it's supplementary angles and we know that sum of all angles of supplementary angles is 180 °.So, b + c = 180 °
77° + c = 180 ° ... { b = 77 -( vertical angle )}
subtract 77 from each sides
77 - 77 + c = 180 ° - 77 °
c = 103 °
Hey can someone help me with these I will give a lot of points and brainliest!!!
Answer:
6) 62.5%
7) 54
8) B
Step-by-step explanation:
For number 6, just add 96 and 160 and then do 160/(96+160), which is equal to 0. 625, or 62.5%.
for number 7, x is always equal to 1/3 of y, so if x is 18, we know that 18 is 1/3 of y. 18x3 is equal to 54, which is your answer.
For number 8, you can see that B is right because it uses the greatest common factor of 32 and 48, which is 16. All the other answers can be simplified more.
Answer:
6. C) 62.5%
7. D) 54
8. B) 16(2c + 3d)
Step-by-step explanation:
160 + 96 = 256
[tex]\frac{160}{256}=\frac{160/32}{256/32}=\frac{5}{8}[/tex]
5 ÷ 8 = 0.625
0.625 × 100
62.5%
GCF = 32
The factors of 160: 1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160
The factors of 256: 1, 2, 4, 8, 16, 32, 64, 128, 256
The GCF is 32.
1:3 = 7:21 = 9:27 = 13:39 = 18:y
[tex]\frac{1}{3}: \frac{18}{y}[/tex]
1 × y = 18 × 3
y = 54
GCF(32, 48)
32 = 2 × 2 × 2 × 2 × 2
48 = 2 × 2 × 2 × 2 × 3
GCF = 2 × 2 × 2 × 2
GCF = 16
16(2c + 3d)
PLEASE HELP!!
ILL GIVE MORE POINTS TO THE FASTEST ANSWER
Martha has two jobs. One pays $15 per hour, and she works at that job 10 hours per week. The other job pays $13 per hour, and she works at that job 30 hours per week. How much money does she make per year?
.
Answer:
$28080 per year
Step-by-step explanation:
15$ per hour for the first job and she does it for 10 hours each week, this means, 15*10 which is 150. So we have 150 for the 1st job every week.
2nd job, 13$ per hour. She does that for 30 hours a week so we have 13*30 which is 390$ per week.
The two jobs together are 150 per week and 390 per week which means 540$ per week. Now` if we want to find how much she makes in a year, the are 52 weeks in a year, so multiply 540$ *52=$28080
So she makes $28080 per year
Three times a number increased by ten to equal to twenty less than six times the number. Find the number.
PLEASE HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
will mark brainlist.
Answer:
x =10
Step-by-step explanation:
3x + 10 = 6x -20
3x - 6x + 10 = -20
-3x + 10 = -20
-3x = -20 -10
-3x = -30
x = -30/-3
x = 10
Check:
3(10) + 10 = 6(10) - 20
30 + 10 = 60 - 20
40 = 40
Graph the line with the equation y=-1/6x+3
10 points!!! Please answer 8 and 9 and hurry
Answer:
Step-by-step explanation:
since EG bisects angle DEF
31 = x + 15
31 - 15 = x
x = 16 degree
6x - 4 = 56
6x = 56 + 4
x = 60/6
x = 10
Answer:
8. 16
9. 10
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