Answer:
61
Step-by-step explanation:
We know from the equation 43 is 18 less then j. Therefore, if we add 18 to 43, we will get the value of j.
43 + 18 = 61
If a shirt costs 45 dollars, it's marked down to 30% off, what is the amount of the discount?
Answer:
$31.50
Step-by-step explanation:
30% of 45 is 13.5
45-13.5=31.5
y = x3 + x2 − 4x − 16
Answer:
use photo math
Step-by-step explanation:
Answer:
Step-by-step explanation:
DIFFERENTIATE W.R.T. X
3x 2 +2x−4
EVALUATE
x 3 +x 2 −4x−16
EVALUATE
x
3
+x
2
−4x−16
How to solve mentally
Step-by-step explanation:
1.The "9-trick".To add 9 to any number, first add 10 and then subtract 1
2.Double +1
3.use adittion facts when adding bigger number.
4.subtract by adding
5.five times a number
6.four and eight times a number
7.multiply in parts
im good in math
What is the equation of the line perpendicular to Y= 1/2x +6 that passes through the point (4,1)
Answer:
Step-by-step explanation:
y= mx+b is the general equation where m is the slope
y= 1/2 x +6 has the slope 1/2
perpendicular lines have the slope negative reciprocal
so the slope of the ⊥ line is -2
y = -x +b , yet for point (4, 1) the x=4 and y =1
1= -4 +b so b= 5
the equation of the ⊥ line is y= -2x+5
You don't need to solve it, just write the equations
Answer:
5,640/15=y
y•15=5,640
Please help!! 10-15 much appreciated! :)
Answer:
Step-by-step explanation: sin β = [tex]\frac{oposite }{hypotenuse}[/tex] ; cos β = [tex]\frac{Adjacent}{Hypotenuse}[/tex]
10) sin [tex]32^{0}[/tex] = [tex]\frac{x}{18}[/tex]
18 sin [tex]32^{0}[/tex] = x
18 (0.53) = x
x= 9.5 units
cos [tex]32^{0}[/tex] = [tex]\frac{y}{18}[/tex]
18 cos [tex]32^{0}[/tex] = y
y = 18 (0.85)
y = 15.3 units
You use the same strategy for the rest of the questions. Feel free to reach out if you have more questions.
PLEASE HELP ME OUT HERE!!!!
9 + 15 using the distributive property to factor out the greatest common factor
Answer:
24
Step-by-step explanation:
9 can be broken down to 3 because 3 x 3 = 9
15 can be broken down to 3 also because 3 x 5 = 15
> 9 + 15
= 3 ( 3 ) + 3 ( 5 )
= 3 ( 3 + 5 )
= 3 ( 8 )
= 24
What percent of this grid is shaded
Answer:
The 4th one cuz it’s a percent
Step-by-step explanation:
11+19+12+245+1245+23567=
How much must be added to each of the three number 1, 11, and 23 so that together they form a geometric progression?
Answer:
49
Step-by-step explanation:
Let the three numbers be a1, a2, a3
Let the number to be added to form a geometric progression = x
a1 = 1 + x ; a2 = 11 + x ; a3 = 23 + x
For a geometric progression :
a2 = a1 * r
a2 = (1+x)r
11+x = (1+x)r - - (1)
r = (11+x) / (1+x) ---(1)
a3 = a2 * r
a3 = (11+x)r
23+x = (11+x)r - - -
r = (23+x) / (11+x) - - (2)
Equate (1) and (2)
(11+x) / (1+x) = (23+x) / (11+x)
(11+x) * (11+x) = (23+x) * (1+x)
121 + 22x + x² = 23 + 24x + x²
121 + 22x + x² - x² - 24x - 23 = 0
98 - 2x = 0
-2x = - 98
x = 98 / 2
x = 49
The best equation to graph from is the point slope form of a line. True or false?
Answer:
i say yes
Step-by-step explanation:
this is because it will give you the point to start with and the slope so you will already have all the information to graph
Factorise the following:
a) x + 3x - 4
b) x - 2x - 3
c) x + 2x - 8
Assume that three fifths of the population has long hair and and one tenth of the poulation has blue eyes. What is the probability that a person does not have long but does have blue eyes?
Answer:
1/25
Step-by-step explanation:
If 3/5 have long hair, then 2/5 do not have long hair
So, the probability of no long hair, has blue eyes = 2/5(1/10) = 1/25
Manny begins the summer with $200 in his savings account. Each week he adds $85 to his account. Susan begins the summer with $95 in a savings account and adds $100 each week. When will Manny and Susan have the same amount of money in their accounts?
Answer:
7 weeks
Step-by-step explanation:
200 + 85w = 95 + 100w
-95 -85w -95 -85w
105 = 15w (divide both sides by 15)
7 = w
What expense category could be eliminated through good financial planning?
The captain of the cheerleading team, Alicia, counted that they washed 58 cars. Determine if this is a reasonable number of cars that could've been washed.
Answer:
yes but no
Step-by-step explanation:
um well that is a lot by not if there is a bunch of people doing it.
What is the anwser to: h + 5.7 = −5.7
Answer:
h=-11.4
Step-by-step explanation:
because, 5.7+-5.7=-11.4
Plz help me cuz I’m slow lol
Answer:
The answer is A
Step-by-step explanation:
(-2,5).......
......
The ratio of students with brown eyes in Michelle’s class to all of the students in her class is 20:25. What is another way to write this ratio?
Answer:
3/4, 5/6, 8/10 this is in fraction form though. just change it to 3:4
I dont even know how to solve this lol, need help and work shown
Answer:
-6
Step-by-step explanation:
-7 + 2(5) - (12÷4)²
-7 + 10 - 3²
-7 + 10 - 9
3 - 9
-6
Find the midpoint of the segment with the following endpoints.
(10,6) and (3,1)
Answer:
(6.5 , 3.5)
Step-by-step explanation:
[tex]Midpoint=(\frac{x_{1}+x_{2}}{2},\frac{y_{1}+y_{2}}{2})\\[/tex]
[tex]=(\frac{10+3}{2},\frac{6+1}{2})\\\\=(\frac{13}{2},\frac{7}{2})\\\\=(6.5,3.5)[/tex]
Which answer describes the sequence {1,3,7,15,…} as a mathematical statement?
Answer:
so just successive powers of 2
Step-by-step explanation:
1, 3, 7, 15, 31, 63, _? Add successive powers of 2 to the number: 1+2=3; 3+4=7; 7+8=15; 15+16=31; 31+32=63; 63+64=127.
The given sequence {1,3,7,15,…} has general term S = A(n-1) + (A(n-1) + 1) where A0 = 1.
Given that,
To justify the given sequences 1,3,7,15.
Arithmetic progression is the series of numbers that have common differences between adjacent values
What is geometric progression?Geometric progression is a sequence of series whose ratio with adjacent values remains the same.
Here,
Given a sequence, 1,3,7,15
where first term A0 = 1
second term A1 = 1 + 2 = 3
third term A2 = 3 + 4 = 7
From above sequence we can conclude the general term for the sequence as, S = A(n-1) + (A(n-1) + 1)
Thus, the given sequence {1,3,7,15,…} has general term S = A(n-1) + (A(n-1) + 1) where A0 = 1.
Learn more about arithmetic progression here:
https://brainly.com/question/20334860
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What is the first step in solving this quadratic equation? x^2+5x=6
a) combine like terms
2) set each factor equal to zero
c) subtract 6 from both sides to get it equal to zero.
d) factor
Answer:
c) subtract 6 from both sides to get it equal to 0
Step-by-step explanation:
The Lowest common multiple of 2 numbers is 126
what are the 2 numbers
Answer:
Step-by-step explanation:
The least common multiple of 126 and 131 is
16,506
use synthetic division to find the quotient when 3x^3-13x^2+2x-5 is divided by x-4?
Answer:
Step-by-step explanation:
4_| 3 -13 2 -5
12 -4 -8
3 -1 -2 -13
3x^2 - x - 2 - 13/(x - 4)
Here is a system of equations.
y=3x-1
y=-x-5
Graph the system. Then write its solution. Note that you can also answer "No sol
B
G H
Find the slope of the line that passes through the given points.(2, 1) and (7,10)
Answer:
1.8
Step-by-step explanation:
Slope: 1.8
Equation of the line: y=1.8x-2.6
Find the solution to the system: y=4x and 3x+2y=55
Answer:
x = 5, y = 20
Step-by-step explanation:
if y = 4x and 3x+2y = 55 then we can subtitude y as x.
We know that y = 4x so we can write 4x wherever we see y.
3x + 2y = 3x + 2(4x) = 55
3x + 8x = 55
11x = 55
x = 5.
And if y = 4x = 4(5)
y = 20
Let us factorise the following alg
x4/16-y4/81
Step-by-step explanation:
this way we get value of x and y
hope it helps ☺️☺️
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