Answer:
-20
Step-by-step explanation:
X+10= 2(x-5)
X+10= 2x-10
X-2x= -10-10
X= -20
What is 7.2 as an improper fraction
Answer:
36/5
Step-by-step explanation:
7.2
7 2/10
7 1/5
7+1/5
7×5/5+1/5
7×5/5+1/5
7×5+1/5
35+1/5
36/5
Please help, its very urgent.
A sequence can be generated by using an=13an−1, where n is a whole number greater than or equal to 1.
Given a11=6, what is a12?
2
4
18
72
Answer:
Given
aₙ = 1/3 aₙ₋₁If a₁₁ = 6, then
a₁₂ = 1/3 a₁₁ = 1/3(6) = 2Correct choice is A
Which espression is equivalent to 7^(-2)*7^(6)
Answer: it’s A and D
Step-by-step explanation:
Can anyone help me I’ll mark ya Brainly
Answer:
1/6
Step-by-step explanation:
Jesse collects data on his math scores on the last 12 tests and the number of hours he spent completing his math homework assignments and studying in the week before every test. He creates a scatter plot to show the data. The regression line shown on the graph best models the data on the scatter plot.
Based on the given model, how many hours in the week before the test does Jesse need to study to get a score of 90 on the test? Round your answer to the nearest hour.
Answer:
24 hoursStep-by-step explanation:
Using the two points on the regression line, let's find its equation.
Points:
(0, 30) and (8, 50)The slope:
(50 - 30)/8 = 2.5The y-intercept is
30The equation:
y = 2.5x + 30Solve for x if y = 90
90 = 2.5x + 302.5x = 60x = 60/2.5x = 24The answer is 24 hours
WHAT IS THISDSSSSSSSSSSSSSSSSSSS
Answer:
B
Step-by-step explanation:
Yes, it is. The set of rational numbers is closed for all the four operations, so x+y, x-y, x*y and x/y are rational too. And it is easy to demonstrate. A rational number can be expressed as a fraction of two integers. So, x can be expressed as a/b and y as c/d. Hence x+y = a/b + c/d = (ad+bc)/bd, which, as fraction of two integers, is rational.
Use Distributive Property to expand the expressions and then simplify.
1/4 (4s + 24.80)
Answer:
The answer is s + 6.2
Ezra uses his bank card to buy gasoline for his car 3 times. Each time he buys gasoline, it costs $18.50. He then deposits $50 in his bank account. What is the change in his bank account balance in dollars as a result of these transactions?
his bank account lost $5.50
Step-by-step explanation:
he bought gasoline three times which comes out to -$55.50 and then he adds$50 to his account which brings it to overall $5.50 lost
Al precio de p dólares por unidad, se venden x unidades de cierto artículo al mes en el mercado con p=50-0.5x ¿Cuántas unidades como mínimo se deben vender cada mes con el objetivo de tener ingresos de por lo menos de 1.200 dólares?
Answer:
Se debe vender un mínimo mensual de 40 artículos para tener un ingreso mínimo de 1.200 dólares.
Step-by-step explanation:
De acuerdo con el enunciado, [tex]x[/tex] es la cantidad mínima de artículos a un precio de [tex]p[/tex]. Además, los ingresos totales deben ser de un mínimo de 1200. En consecuencia, tenemos el siguiente sistema de ecuaciones:
[tex]x \cdot p = 1200[/tex] (1)
[tex]p = 50-0.5\cdot x[/tex] (2)
Aplicando (2) en (1), tenemos la siguiente ecuación polinómica:
[tex]x\cdot (50-0.5\cdot x) = 1200[/tex]
[tex]50\cdot x -0.5\cdot x^{2} = 1200[/tex]
[tex]0.5\cdot x^{2}-50\cdot x +1200 = 0[/tex] (3)
Por la Fórmula de la Cuadrática tenemos las raíces del polinomio:
[tex]x_{1} = 60[/tex], [tex]x_{2} = 40[/tex]
De acuerdo con el resultado anterior, se debe vender un mínimo mensual de 40 artículos para tener un ingreso mínimo de 1.200 dólares.
Cory owes $1,000 to his bank. During the time of his loan, he is charged a rate of 12% simple annual interest. If he does not make any payments on his loan, which table shows the relationship between the amount he owes and the number of months?
A.
Balance Due Number of Months
$1,036 3
$1,084 7
$1,120 10
B.
Balance Due Number of Months
$1,020 2
$1,050 5
$1,090 9
C.
Balance Due Number of Months
$1,004.80 4
$1,009.60 8
$1,013.20 11
D.
Balance Due Number of Months
$1,005 5
$1,007 7
$1,012 12
Answer:
The answer is B
Step-by-step explanation:
Given: Cory owes $1,000 to his bank. During the time of his loan, he is charged a real of 12% simple annual interest
To find: If he does not make any payments on his loan, draw table showing the relationship between the amount he owes and the number of months
Solution:
Loan amount P = $ 1000
Rate of interest R = 12 % per annum
SI = P * R * T /100
one month T = (1/12) Years
Interest per month = 1000 * 12 * (1/12) /100 = $ 10
Hence interest chaarges $ 10 per month
Cory owes to bank the loan amount and interest
Cory owes = 1000 + 10 n
where n is the number of months
Month Amount
0 1000
1 1010
2 1020
3 1030
4 1040
5 1050
6 1060
7 1070
8 1080
9 1090
and so on
HELP!!! answer quickly pls
Answer:
I believe it is (-6, 6)
Step-by-step explanation:
Hope this helps!
p.s. could I get brainliest if possible (I only need one more for the next category or whatever)
Evaluate the expressions for when x=-1, y=3, z=-2
z²+x²-y and x²y²z²
Step-by-step explanation:
z² +x² - y= -2²+ -1² - 3
4+ 1 - 3= 2
x²y²z²= -1²× 3²× -2²
1× 9× 4= 36
4 + 6^2 + 9x3-10
Help plz
Answer:
57
Step-by-step explanation:
Answer:
9x^3+30
Step-by-step explanation:
Im not sure if you wanted to simplify because you werent specific but I simplified
can you please help meeeeeeee
Answer:
No, No, No, Yes, Yes, Yes
3.
Find the constant of variation k for the direct variation.
A. k = 2
B. k = –0.5
C. k = –1.5
D. k = –2
Answer:
D. k = -2
Step-by-step explanation:
constant of variation:
[tex]k=\frac{f(x)}{x}[/tex]
[tex]=\frac{2}{-1}[/tex]
[tex]= -2[/tex]
so the right answer is -2
hope it helps...
have a great day!!
Answer:
D. k = –2
Step-by-step explanation:
Answer:
K = -2
Step-by-step explanation:
If y varies directly as x, k (constant) can be found by dividing the y-coordinate by the x-coordinate.
...............................................................................................................................................
A.. k= 2
please help! no links
Answer:
I believe it's choice 3
Step-by-step explanation:
the table goes up by 3 from 12 to 15 and that would be equal to 3 so the table and the equation would be the same
my life is hellpless.... could you please help? i cant even understand this I'm only 11.
Answer:
y-intercept: -4
slope: 2
equation: y = -4x + 2
Answer:
Y-intercept: -4
Slope: 2
Equation: y = 2x - 4
what is the area of rectangle PQRS with vertices at P(0,2), Q(0,10), R(4,10), and S(4,2)?
please help asap <3333333
Answer:
5. 89
6. 98
7. 90
8. 130
Step-by-step explanation:
they are all equivalent to the one shown
5. 89, angles equal
6. 98, angles equal
7. 90, right angles
8. 130, angles equal
Brandon is making party decorations by selecting one of two kinds of balloons—heart-shaped balloons or oval-shaped balloons. He puts them in one of three baskets—red, pink, or white. The sample space for the event of selecting a balloon and putting it in one of the baskets is represented in the tree diagram. Complete the sample space.
Answer:
missing color is red missing shape is oval
Step-by-step explanation:
The sample space is {(Heart, Red), (Heart, Pink), (Heart, White), (Oval, Red), (Oval, Pink), (Oval, White)}.
What is sample space?It is the total number of possible outcomes from a given set.
We have,
Two types of balloons.
Heart and Oval.
Now,
Each balloon has three colors.
Red, Pink, and white.
Now,
The sample space.
= {(Heart, Red), (Heart, Pink), (Heart, White), (Oval, Red), (Oval, Pink), (Oval, White)}
Thus,
The sample space is {(Heart, Red), (Heart, Pink), (Heart, White), (Oval, Red), (Oval, Pink), (Oval, White)}.
Learn more about sample space here:
https://brainly.com/question/24273864
#SPJ2
156.43 - 42.1
EXPLAIN HOW YOU GOT IT AND ILL MARK BRAINLIEST!
Answer:
Your answer is 114.33
Step-by-step explanation:
How I got the answer was
156.43
- 42.1
————-
114.33
It is easy subtraction don’t let decimals fool you!
For a easier way take out the dot in the decimal and put it in after when you got the answer!
Have a nice day! And thank you for this question! :)
Brainlest is always appreciated! :)
find the surface area of a prism with the length of 6m a width of 2m and a height of 10m.
Answer: Surface Area= 184 m²
Step-by-step explanation:
Concept
The formula for the surface area of a prism: SA=2(wh+wl+hl)
Given
Width (w) = 2 m
Length (l) = 6 m
Height (h) = 10 m
Solve
SA=2(wh+wl+hl)
SA=2(2×6+2×10+6×10)
SA=2(12+20+60)
SA=2×92
SA=184 m²
Hope this helps!! :)
Please let me know if you have any quesitons
What would u say if ur math teacher asks u this?!
Answer:
undecided
Step-by-step explanation:
HELP FAST SELECT TWO!!!!
Answer:
2 and 5 are the answers
Step-by-step explanation:
The other ones are blatantly false
Answer: 2 and 5 but don't take my word for it.
Step-by-step explanation:
What addition statement does this show?
A. -3.4 + 5.7 = -9.1
B. -3.4 + (-5.7) = -9.1
C. 3.4 + (-5.7) = -9.1
D. 3.4 + 5.7 = -9.1
Answer:
B
Step-by-step explanation:
Find the intercept and slope in the graph, and find the aquation for the function.
Answer:
Slope = 3
y intercept = -8
y = 3x - 8
Step-by-step explanation:
From the table shown, we can make use of the coordinate points
(0, -8) and (1, -5)
Slope m = y2-y1/x2-x1
m = -5-(-8)/1-0
m = -5+8/1-0
m = 3/1
m = 3
Slope = 3
The standard form of an equation is y = mx+b
b is the y intercept
Substitute m = 3 and (0, -8) into y = mx+b
-8 = 3(0) + b
-8 = b
b = -8
Hence y intercept is -8
Get the required equation
Recall that y = mx+b
y = 3x + (-8)
y = 3x - 8
This gives the required equation
Find the measure of the indicated arc
Answer:
200 degrees.
Step-by-step explanation:
By theorem of inscribed angle...
The measure of an inscribed angle is half the measure of the intercepted arc. [Theorem]
therefore, m(angle J) = half of m(arc CDE)
therefore, m(arc CDE) = 2 * m(angle J)
therefore, m(arc CDE) = 2 ( 100)
therefore, m(arc CDE) = 200 degrees.
what is the value of the expression shown below 6+(9-1)^2÷4×1/2^4
Answer:
280
Step-by-step explanation:
[6 + (9 - 1)²] ÷ 4·(1/2)^4
= 6 + 8² ÷ 4 · 1/16
= 6 + 64 ÷ 1/4
= 70 ÷ 1/4
= 70 x 4
Kyla makes 56 cups of soup how many 1 3/4 cup's servings does she has
56/1.75=32
She has 32 servings. Please mark as brainliest. :)
Parallelogram PQRS has diagonals that are perpendicular. Based on that, which statement is most correct?
A- Parallelogram PQRS is also a rectangle
B- Parallelogram PQRS is also a rhombus.
C- Parallelogram PQRS is neither a rectangle nor a rhombus.
D- Parallelogram PQRS is both a rectangle and a rhombus, so it is a square.
Answer:
B- Parallelogram PQRS is also a rhombus.
Step-by-step explanation:
Given
Parallelogram PQRS with perpendicular diagonals
Required
Which of the option is true
(a) PQRS can be a rectangle
A rectangle do not have perpendicular diagonals.
Hence, (a) is false
If (a) is false, then (d) is also false
(b) PQRS can a rhombus
The diagonals of a rhombus are not perpendicular.
So (b) is true
No need to check for (c), since only option is true
Answer:
B- Parallelogram PQRS is also a rhombus.
Step-by-step explanation:
Hope this helps