Answer:
a=28, b=-15
Step-by-step explanation:
[tex]Method\ by\ linear\ combinaisons\\\left\{\begin{array}{ccc|c|c|}2a+5b&=&-19&-1&3\\3a+5b&=&9&1&-2\\\end{array}\right.\\\\\\\left\{\begin{array}{ccc}a&=&28\\5b&=&-75\\\end{array}\right.\\\\\\\left\{\begin{array}{ccc}a&=&28\\b&=&-15\\\end{array}\right.\\[/tex]
PLZ HELP (-8x-6)-4 to the 2nd power
Answer:x=-0.75
Step by step: 4 to 2nd power multiple 4 by 4 you get 16 so (-8x-6)16 multiply 16 to -6 and -8x and so on...
if the breadth of a rectangle is one third of its length and perimeter is 80 cm find the length and breadth of rectangle
here is your answer,
hope it helps you.
what is energy????
bye have a great day
Answer:
the capacity of doing work is called energy
have a great day
Answer:
the capacity for doing work is called energy.
have a great day
stay happy and healthy
At chucky bee restaurant, the meal costs $55.25 and desserts cost $15.75 for 5 people. How much money does each person have to pay?
Answer:
$14.20
Step-by-step explanation:
First we add both the meal ($55.25) and the dessert ($15.75) to calculate the total cost which would be $77.00 Assuming the bill was evenly split among the five people, we would divide the total cost ($77.00) by all 5 people which gives us 14.20 so each person would have to pay $14.20.
hope this helps!
5 1/4-2 2/3
Solve and show equations
Answer:
5 1/4 - 2 2/3 = 31/12 = 2 7/12 = 2.5833333
Step-by-step explanation:
1. Conversion a mixed number 5 1/4 to a improper fraction: 5 1/4 = 5 1/4 = 5 · 4 + 1/4 = 20 + 1/4 = 21/4
To find new numerator:
a) Multiply the whole number 5 by the denominator 4. Whole number 5 equally 5 * 4/4 = 20/4
b) Add the answer from previous step 20 to the numerator 1. New numerator is 20 + 1 = 21
c) Write a previous answer (new numerator 21) over the denominator 4.
Five and one quarter is twenty-one quarters
Conversion a mixed number 2 2/3 to a improper fraction: 2 2/3 = 2 2/3 = 2 · 3 + 2/3= 6 + 2/3 = 8/3
To find new numerator:
a) Multiply the whole number 2 by the denominator 3. Whole number 2 equally 2 * 3/3 = 6/3
b) Add the answer from previous step 6 to the numerator 2. New numerator is 6 + 2 = 8
c) Write a previous answer (new numerator 8) over the denominator 3.
Two and two thirds is eight thirds
Subtract: 21/4 - 8/3 = 21 · 3/4 · 3 - 8 · 4/3 · 4 = 63/12- 32/12 = 63 - 32/12 = 31/12
For adding, subtracting, and comparing fractions, it is suitable to adjust both fractions to a common (equal, identical) denominator. The common denominator you can calculate as the least common multiple of both denominators - LCM(4, 3) = 12. In practice, it is enough to find the common denominator (not necessarily the lowest) by multiplying the denominators: 4 × 3 = 12. In the next intermediate step, the fraction result cannot be further simplified by canceling.
In words - twenty-one quarters minus eight thirds = thirty-one twelfths.
BRAINLIEST!! PLZ HELP
Given f (x) = x2 – 4 and g(x) = x + 3 then g (f (2)) =
Answer:
g (f(2)) = 3
Step-by-step explanation:
f (x) = x2 – 4
g(x) = x + 3
g (f (2)) =?
Find f(2) first
f (x) = x2 – 4
f (2) = 2^2- 4
= 0
Now put this in your g(x)
g(x) = x + 3
g (f(2)) = (f(2)) + 3
And u alredy know f(2) =0, so just put it in
g (f(2)) = 0 + 3
=3
Anyone else gonna sit alone at lunch today in school? :')
Answer:
I got online school
Step-by-step explanation:
tho yeah, I still eat lunch alone
Answer:
ofcourse cause its co vid 19 and we need to keep a safe distance so we can call it as eating alone
Step-by-step explanation:
Evaluate the limit of sequence at infinity.
[tex] \displaystyle \large{ \lim_{n \to \infty } \frac{ \sqrt{4 {n}^{2} + 3n } }{6n} }[/tex]
Please show your work too. Thanks!
Answer:
[tex]\displaystyle \frac{ 1 }{3} [/tex]
Step-by-step explanation:
we would like to compute the following limit:
[tex]\displaystyle \lim_{n \to \infty } \frac{ \sqrt{4 {n}^{2} + 3n } }{6n} [/tex]
if we compute the limit from numerator to denominator directly,we'd end up with
[tex] \dfrac{ \infty }{ \infty } [/tex]
which is an indeterminate form so we must do it in a different way. well to compute this limit,we can consider factoring method . notice that we can factor the numerator and that yields
[tex]\displaystyle \lim_{n \to \infty } \frac{ \sqrt{ {n}^{2} ( 4 {}^{} + \frac{3}{n} )} }{6n} [/tex]
remember that ,
[tex] \sqrt{ab} \implies \sqrt{a} \sqrt{b} [/tex]thus we acquire:
[tex]\displaystyle \lim_{n \to \infty } \frac{ {n} \sqrt{ ( 4 {}^{} + \frac{3}{n} )} }{6n} [/tex]
reduce fraction:
[tex]\displaystyle \lim_{n \to \infty } \frac{ {} \sqrt{ 4 {}^{} + \frac{3}{n} } }{6} [/tex]
as n approaches to ∞ ,3/n approaches to 0 which yields:
[tex]\displaystyle \frac{ \sqrt{ 4 {}^{} } }{6} [/tex]
simplify square root:
[tex]\displaystyle \frac{ 2 }{6} [/tex]
reduce fraction:
[tex]\displaystyle \frac{ 1 }{3} [/tex]
hence,
[tex]\displaystyle \lim_{n \to \infty } \frac{ \sqrt{4 {n}^{2} + 3n } }{6n} = \boxed{ \frac{1}{3} }[/tex]
and we're done!
f(x) = -1/2x is it increasing, decreasing or constant
Answer:
The function is decreasing.
Step-by-step explanation:
f(x) = x is the parent function, when you make x negative it decreases rather than increasing. the use of the slope (1/2) doesn't change whether it it increasing or decreasing. as long as the negative sign is in front, it will decrease.
**Answers needed fast** What goes in the small / little boxes?
Answer:
149, 520 and the littlest boxes is 0 and 1
Step-by-step explanation:
Nina can braid 144 inches of rope in 3 hours find her unit rate round your answer to the nearest thousand
Answer:
48 inches
or
0.8 minutes
Step-by-step explanation:
To find the unit rate of inches per hour, divide 144 by 3.
144÷3=48
You don't need to round because there are no decimals.
To find the time to braid 1 inch, first multiply 3 by 60 (because there are 60 minutes in 1 hour).
3×60=180
Then divide 144 by 180.
144÷180= 0.8
You don't need to round because there are no thousandths.
The point A(1,5) is rotated 90° clockwise around the origin. What are the coordinates of the resulting point, A'?
Answer:
A'(5,-1)
Step-by-step explanation:
90° clockwise= (y,-x)
Point=A(1,5)
A(1,5)=A'(5,-1)
What is it simplified?
Answer:
v² - 4
Step-by-step explanation:
To simplify usually means to reduce something.
So like in this problem all we have to do is reduce...
v^2 - 2^2
v² - 4
Hope this helps :)
PLEASE HELP WILL MARK BRAINLIEST
Paul graphs the equation y = 24.
Where does his graph intersect the y-axis?
(0,1)
(1,0)
(0,0)
(2,0)
(0,0)
Step-by-step I took the test
PLEASE ANSWER AS QUICK AS POSSIBLE
Which of the following operations would be used to solve 5x = 10?
Answer:
division
Step-by-step explanation:
you need to get x by its self. so divide by 5 on both sides and get x = 2
I need an explanation and an answer please.
we have,
14x+8+6x+12=180 {interior angle}
or, 20x+20= 180
or, 20x= 180- 20
or, x= 160/20
:. x= 8
Now,
14x+8= 14.8+8
= 112+8 =120
6x+12= 6.8+12
= 48+12 = 60
Solve the equation. X+3.5 = 10
A.X = 13.5
B. X = 7.5
C. X = 6.5
D. X = 30.5
Answer:
the answer is C
Step-by-step explanation:
its making write more so yeah
Answer:
x=6.5
Step-by-step explanation:
subtract 3.5 from 10 and it gives you 6.5
:)
Let p: A shape is a triangle.
Let q: A shape has four sides.
Which is true if the shape is a rectangle?
O pva
O р а
O p 9
O 9 p
the product of a number and 5
the expression 3x-9 and 23-5x represent the lengths (in feet) of two sides of an equailater triangle. find the perimeter of the triangle
Answer: 3ft
Step-by-step explanation:
Step 1; 3x-9=23 5x
Step 2; 3x9=23 5x 3x+ 9=23- 5x
Step 3 ; 3x-9 3x4-9 = 3ft
3ft is the answer.
Help pleaseeeeeeeee
Given l ||
m
|| n, find the value of x.
(x-1)^
m
n
(8x-10°
PLEASE ASAP
I’m having so much trouble with this
Answer:
x = 9
Step-by-step explanation:
8x - 10 = 7x -1
x = 9
hope that helps
sjddkdkkdkdkdkdkdkdkkddkjsjssj
Answer:
PLESS WRITE A CORRECT QUESTION THAS I CAN HELP YOU
Which of these could be the graph of F(x) = In x + 1?
Answer:
A
Step-by-step explanation:
rlykydlydlysl6sl6sl6dylsl6sl6dlu
How do I write this in slope intercept form: (-3,-4) and (4,-3)
PLEASE HELP I NEED IT TONIGHT!!!?!?!!!??
help me pleaseeee this is due tomorrow
Answer:
The value of A=7
The value of B=2
SEMOGA MEMBANTU
Olivia's science class is making slime from cornstarch and glue. Olivia is helping pass out
materials. She gives each student 4 ounces of cornstarch from a 5-pound bucket. If Olivia's
class has a total of 18 students, how many ounces of cornstarch will she have left?
Answer:she will have 4.44 ounces of cornstarch left
Step-by-step explanation: 1 pound=16 ounces 16*5=80 ounces 80 ounces equal 5 pounds then you divide 80 by 18 and your answer should come out as 4.44 ounces
Amount of cornstarch left is 8 ounce
Given that;
Each student get = 4 ounce of cornstarch
Total number of student = 18 students
Total amount of cornstarch = 5 pound
Find:
Amount of cornstarch left
Computation:
Amount of total cornstarch to student = Each student get × Total number of student
Amount of total cornstarch to student = 4 × 18
Amount of total cornstarch to student = 72 ounce
1 pound = 16 ounces
So,
Total amount of cornstarch = 5 × 16
Total amount of cornstarch = 80 ounces
Amount of cornstarch left = 80 - 72
Amount of cornstarch left = 8 ounce
learn more:
https://brainly.com/question/16266309?referrer=searchResults
PLEASE HELP
Find the Value of X in the given right triangle
Answer:
I think answer is 149 by using Pythagoras theorem
Step-by-step explanation:
sinx= p/h
= 7/10
sinx= 0.7
maybe
What are the ways you can prove triangles are congruent?
Answer:
There are five ways to find if two triangles are congruent: SSS, SAS, ASA, AAS and HL.
Show that a to the 6th an be written as a perfect square and as a perfect cube.
Answer:
Step-by-step explanation:
a^6 = a * a * a * a * a * a You can break this into groups of 2 and groups of three.
Groups of 3
a^6 = a * a * a * a * a * a
what that means is that you have 2 groups of 3 which can be written as (a^3)^2 which means that this number is a perfect square.
Groups of 2
a^6 = a * a * a * a * a * a
What this means is that you have (a^2)^3 which is three groups of 2 members. The answer is that you have a perfect cube each member of which is a^2
