Answer:
teacher's age: 30
student's age: 15
Step-by-step explanation:
T = 15 + S
from above,
(T+15)/(s+15) = 3/2
by substitution,
(15+S +15)/(S+15) = 3/2
cross multiply,
2(S+30) = 3(S+15)
2S + 60 = 3S + 45
60 = S + 45
s = 15
T = 30
Please help me con la resolución porfa
Answer:
2,591 esta bien la respuesta
Answer number 11 please. Thank you.
Answer:
A po 232.5n mm²
Step-by-step explanation:
#carryonlearning
What are the answers for these questions
Answer:
4 = 151.70
5a=75.85
Step-by-step explanation:
Find the volume in the cube of centimeters of rectangle prisms - PLSS HELPP AND HURRY PLS
Answer:
120
Step-by-step explanation:
V = lwh
l= 6
h= 4
w= 5
v= 5.4.6
= 120
which table of inputs values, x, and output values, y, represents functions
select each answer
What is the surface area of this right prism?
48 in²
84 in²
96 in²
120 in²
Answer:
It's 96
Step-by-step explanation:
-The left and right rectangles
5*4=20
(5*4)*2=40
-Triangle (front and back)
8*3/2=12
(8*3)/2*2=24
-Bottom Triangle (base)
8*4=32
-Area
=40+24+32
=96
Answer: 96 in^2
Step-by-step explanation: I took the quiz and got it right!! Hope this helps you, have a beautiful day!! :)
Match the vocabulary word with the correct definition.
Answer:
A. Variable
B. Unit Rate
C. Inverse Operations
D.System of linear equations
Please help with the proportions word problem!!
Jillian wants to buy an $80 pair of boots. Before she can, the store raises the price by $24. By what percentage did they raise the price? Use proportions to solve the problem.
Answer:
30%
Step-by-step explanation:
the percent of 24 of 80 is 30% so they rasid the price 30% percent of 80
6th grader here sorry if wrong
use the discriminate to determine how many solutions this equation has -8x^2-8x-2=0
Answer:
One solution
Step-by-step explanation:
Discriminant
[tex]\textsf{Discriminant}:b^2-4ac}\quad\textsf{when}\:ax^2+bx+c=0[/tex]
[tex]\textsf{If}\quad b^2-4ac=0 \implies \textsf{one solution}[/tex]
[tex]\textsf{If}\quad b^2-4ac > 0 \implies \textsf{two solutions}[/tex]
[tex]\textsf{If}\quad b^2-4ac < 0 \implies \textsf{no solutions}[/tex]
Given equation:
[tex]-8x^2-8x-2=0[/tex]
Swap sides:
[tex]\implies 8x^2+8x+2=0[/tex]
Using discriminant:
[tex]\implies b^2-4ac=8^2-4(8)(2)=0[/tex]
Therefore, there is one solution
--------------------------------------------------------------------------------------------
Proof
[tex]8x^2+8x+2=0[/tex]
Divide both sides by 2:
[tex]\implies 4x^2+4x+1=0[/tex]
Separate the middle term:
[tex]\implies 4x^2+2x+2x+1=0[/tex]
Factor the first two terms and the last two terms separately:
[tex]\implies 2x(2x+1)+1(2x+1)=0[/tex]
Factor out the common term [tex](2x+1)[/tex]:
[tex]\implies (2x+1)(2x+1)=0[/tex]
Therefore:
[tex]\implies 2x+1=0[/tex]
[tex]\implies x=-\dfrac12[/tex]
Thus proving there is one solution.
Here
a=-8b=-8c=-2Discriminate
D=b²-4acD=(-8)²-4(-8)(-2)D=64-64D=0Roots are equal hence one solution
A circle has a diameter of length 11 cm. What is the length of the radius?
5.5
Step-by-step explanation:
radius = diameter÷2
diameter = 11
so Length of Radius will be 11÷2
which will be 5.5
how many periods of the function y=tan x are there between -3pi/4 and 5pi/4? need help ASAP
Answer:
2
Step-by-step explanation:
Using the graph of tanx attached, we know that each period starts and restarts after each π. I've contrasted the periods of the functions in blue versus what we have between the two points in green.
From -3π/4 to 5π/4, we have.....
1/4 of a period
1 full period
3/4 of a period
1/4 + 1 + 3/4 = 2 periods
I hope this helps!
A square piece of glass has sides that are 7 centimeters long. What is the piece of glass's area?
49cm^2
All lengths are equal in a square
A= b x h
= 7 x 7
=49
Hope this helps!
Solve for x………………………..
Answer:
85
Step-by-step explanation:
a² + b² = c²
13² + 84² = x²
x = 85
Consider the system of equations.
y = 4x + 2
y=-2x + 6
Part A
Graph the equations. Estimate the solution of the system of equations.
Estimated solution:
Part B
Solve the system algebraically,
Show your work
I need help like I get it at some points and some at nun
this is the graph for y =4x+2
Solve this inequality
2x2 – 15x < 27
i will marke brainliest. what is If 1=3
2=3
3=5
4=4
5=4
Then, 6=?
Heres a hint think about how many words are in the number when it is in word form
Answer:
3Step-by-step explanation:
Count the number of letters
1 = one ⇒ 3 letters2 = two ⇒ 3 letters3 = three ⇒ 5 letters4 = four ⇒ 4 letters5 = five ⇒ 4 letters6 = six ⇒ 3 lettersChange integers to strings and put them
1=one=32=two=33=three=54=four=45=five=36=six=37=seven=5Hence answer is 3
The outer angle at the top C of the ABC is 112 °. If the bisector of the side AB intersects the side AC at point Q and the segment BQ is perpendicular to AC, find the magnitude of ABC
Answer:
A customer purchased a furniture for Rs. 3390 with 13% VAT . Find the cost of the furniture without VAT?
I can't figure out the range please help
Answer:
5
Step-by-step explanation:
range is biggest number minus smallest number.
First arrange the numbers from least to greatest.
4, 4, 5, 6, 8, 9, 9
Subtract the biggest number, 9, from the smallest number, 4.
9 - 4 = 5
Answer:
5
Step-by-step explanation:
The range is the highest value number minus the lowest value number. 9 minus 4 is 5.
What is the equation of the line that is perpendicular two and has the same y-intercept as the line with (0,1) and (5,0)
Answer:
its all about reletives so if u take the number then multiply by five u get 56.3
Step-by-step explanation:
u know
PLEEEEEAAAASEEE HELPPPPPP
simplify the polynomial
3a(6a^2-4ab^2)+8a^2b^2-2b^3
Answer:
Simplified: -4a²b²+18a³-2b³
3a(6a²-4ab²)+8a²b²-2b³
Multiply 3a by 6a² and-4ab²
18a³-12a²b²+8a²b²-2b³
combine like terms (-12a²b² and 8a²b²)
-4a²b²+18a³-2b³
Hope this helps
Step-by-step explanation:
Here we have to simplify the polynomial :
[tex] \\ \longrightarrow \sf \qquad3a(6a^2-4ab^2)+8a^2b^2-2b^3\\ \\[/tex]
Using Distributive property we get :
[tex]\longrightarrow \sf \qquad18a^3- {12}^{2} b^2+8a^2b^2-2b^3\\ \\[/tex]
Combining the like terms we get :
[tex]\longrightarrow \sf \qquad18a^3-4a^2b^2-2b^3\\ \\[/tex]
Therefore,
The Simplified expression is [tex] \sf 18^3-4a^2b^2-2b^3[/tex]Question
Find the surface area of the cube.
The surface area is
square yards.
Answer:
81 square yards
Step-by-step explanation:
width- 9 ft
length- 9ft
width times length equals the area which is 81 square feet and if you multiply the height it is 729 which would be the volume.
Hope this helps.
BTW it's my birthday
Kyle designs and conducts a computer simulation with 25 trials and uses the data to create the relative frequency bar graph shown. The graph shows the relative frequency of number rolls needed of a number cube in order to roll all of the odd numbers. According to the results of the simulation, what is the experimental probability that 6 or fewer rolls are needed to roll all of the odd numbers? Express your answer as a percent.
Answer:
thirty-six, thirty six, 36%, thirty-six percent, thirty six percent, or 36 percent
Write a recursive formula for a_na n , the n^{\text{th}}n th term of the sequence 6, 11, 16, ...6,11,16,....
» Which sentence about measuring angles is true? An angle that turns through 10 360 of a circle has a measure of 10°. An angle that turns through 1 of a circle has a measure of 1°. 12 An angle that turns through 10 360 of a circle has a measure of 36°. 1) An angle that turns through 1 of a circle has a measure of 12°.
The correct answer would be: An angle that turns through 10/360 of a circle has a measure of 10°
8. What is m<1
77
1
56
A 103°
| C 133°
C °
D 124°
B 47°
Answer:
Option C
Step-by-step explanation:
Exteriore angle property: Exterior angle equals the sum of opposite interior angles.
∠I = 77° + 56°
= 133°
No trolls or links or i will report
Answer:
92.4 ft²Step-by-step explanation:
Total surface area comprises one rectangular base and two pairs of diferent triangles.
Area of rectangle
A = lwArea of triangle
A = 1/2bhSubstitute and find
A = 7*4 + 2(1/2*4*6.3) + 2(1/2*7*5.6) = 92.4 ft²Area of base rectangle
7(4)28ft²Area of rest triangles
2(1/2BH)+2(1/2bh)BH+bh4(6.3)+7(5.6)64.56ft²Now
TSA
64.56+2892.56ft²solve major part of my grade <33
0 3 6 9 12 15 18
(each tick mark = +3)
Find the arc length of the partial circle.
Answer in terms of π or use 3.14, and enter your answer as a decimal.
[tex]\qquad\qquad\huge\underline{{\sf Answer}}♨[/tex]
As we know :
Length of arc = Radius × Angle made by Arc at center [ in radians ]
[tex]\qquad \tt \dashrightarrow \: arc = radius \times angle \: \: ( in \: \: rad)[/tex]
[tex]\qquad \tt \dashrightarrow \: arc = 8 \times \dfrac{ \pi}{2} [/tex]
[tex]\qquad \tt \dashrightarrow \: arc = 4 \pi \dfrac{ }{} \: \: units[/tex]
or
[tex]\qquad \tt \dashrightarrow \: arc = 4 \times 3.14 = 12.56 \: \: units\dfrac{ }{} \: \: [/tex]
Arc length
L=r[tex]\theta[/tex]L=8(π/2)L=4πL=12.6unitsSix more than the product of 24 and Carlos's savings
Answer:
24c + 6
Hope This Helps! :) Please Give brainliest if This does help you!
If the probability that the Islanders will beat the Rangers in a game is 85%, what is the probability that the Islanders will win exactly three out of five games in a series against the Rangers? Round your answer to the nearest thousandth.
.138
.037
.158
.232
The probability that the Islanders will win exactly three out of five games in a series against the Rangers is mathematically given as
P(x=3)=0.26367
What is the probability that the Islanders will win exactly three out of five games in a series against the Rangers?Generally, the equation for the probability is mathematically given as
P(x=3)=nC3 (P)^r (q)^{n-r}
Therefore
P(x=3)=5C3 (0.75)^3 (0.25)^{5-3}
P(x=3)=10 (0.75)^3 (0.25)^{5-3}
P(x=3)=0.26367
In conclusion, The probability of the islander
P(x=3)=0.26367
Read more about probability
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