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Related Questions
solve for x: -(10+3x)=44
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Answer:
x=-18
Step-by-step explanation:
-(10+3x)=44
substitute the minus sign to the bracket
-10-3x=44
-3x=44+10
-3x=54
divide both sides by -3
so x=-18
Which of the following relations is a function
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Work the problem using the three-step method. Show your work.
Aunt Mary is 6 times as old as Jane. If Aunt Mary is 72 years old, how old is Jane?
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Answer:
12
Step-by-step explanation:
Im very sorry if it is wrong. I do not know any 3 step method.
Helene invested a total of $1,000 in two simple-interest bank accounts. One account paid 8% annual interest; the other paid 9% annual interest. The total amount of interest she earned after one year was $86. Enter and solve a system of equations to find the amount invested in each account. Enter the interest rates in order as given in the problem. (Hint: Change the interest rates into decimals first.)
at 9%.
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Answer: -600 and 1600 were invested into the two accounts.
Step-by-step explanation:
x = amount invested in the first account.
y = amount invested in the second account.
You start off with this equation
[tex]x + y = 1000[/tex]
[tex]0.08x + 0.09y=86[/tex]
Subtract both sides by y.
[tex]x=1000-y[/tex]
Subsitude 1000 - x for x for the second equation.
[tex]0.08(1000-y)+0.09y=$86[/tex]
Use the distributive property to solve for y.
[tex]80-0.08y+0.09y=86[/tex]
[tex]80-0.01y=86[/tex]
[tex]6=-0.01y[/tex]
[tex]=-600[/tex]
Subsitude -600 for y in the first equation and solve for x.
[tex]x-600=1000[/tex]
[tex]x=1600[/tex]
-600 and 1600 were invested into the two accounts.
Pls help me with matching
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Answer:
Step-by-step explanation:
12+x=16
3x+y=19
4y-10=18
1/2xy=14
Answer:
12 + x = 16 because x is 4
3x + y is 19 because 3x is 12 and y is 7
4y - 10 is 18 because 4y is 28
1/2 xy is half of 28 or 14
hope this helps and brainliest please
The points (1,6) and (3, 10) fall on a particular line. What is its equation in slope-intercept form?
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Answer:
y=2x+4
Step-by-step explanation:
m=(y2-y1)/(x2-x1)
m=(10-6)/(3-1)
m=4/2
m=2
y-y1=m(x-x1)
y-6=2(x-1)
y=2x-2+6
y=2x+4
Find the value of x.
Classify the triangle z
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Answer:
value should be 60. all angles are the same and are acute. all angles are the same so it is an Equiangular triangle
one more guys, can you guys help me?
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Answer:
A
Step-by-step explanation:
X is less than -7 because the open circle indicates that x is not -7
egative Expa
True or False:
215
True
False
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100 POINTS!!!!!!!!!!!!!!!!!!!!!!!!!!! PLEASE SHOW STEPS TO ALL PARTS
Use the function f(x) to answer the questions:
f(x) = 4x2 − 7x − 15
Part A: What are the x-intercepts of the graph of f(x)? Show your work. (2 points)
Part B: Is the vertex of the graph of f(x) going to be a maximum or a minimum? What are the coordinates of the vertex? Justify your answers and show your work. (3 points)
Part C: What are the steps you would use to graph f(x)? Justify that you can use the answers obtained in Part A and Part B to draw the graph. (5 points)
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Answer:
Part A & B
Step-by-step explanatPart A:
f(x) = 4x ^ 2 - 7x - 15
0 = 4x ^ 2 - 7x - 15
a = 4, b = -7, c = -15
a x c = -60
-12 x 5 = -60
-12 + 5 = -7
(4x + 5)(4x - 12)
4x ^ 2 - 12x I + 5x - 15
4x(x - 3) + 5(x - 3)
(x - 3)(4x + 5)
x = 3 x = -1.25 or -5/4
Part B:
Minimum point
(x1 + x2)/2
(3 -1.25)/2 = 0.875
f(x) = 4x ^ 2 - 7x - 15
f(0.875) = 4(0.875) ^ 2 - 7(0.875) - 15
f(0.875) = 3.06 - 6.125 - 15
f(0.875) = -18.065ion:
the graph shows the total number of comic books in brandon's collection at the end of every month for the year 2014
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Answer:
B
Step-by-step explanation:
The slope of the line of best fit is {m} = 3.
What is mean, median and mode in statistics?Mean : The "average" number; found by adding all data points and dividing by the number of data points.Median : The middle number; found by ordering all data points and picking out the one in the middle (or if there are two middle numbers, taking the mean of those two numbers).Mode : The most frequent number—that is, the number that occurs the highest number of times.Given is the the graph shows the total number of comic books in Brandon's collection at the end of every month for the year 2014. The line of best fit for the data is given by the equation → y = 3x + 22, where {y} is the total number of comic books in Brandon's collection {x} months after the beginning of the year 2014.
The given equation is -
y = 3x + 22
The general equation of the line is -
y = mx + c
where -
{m} is slope
{c} is y - intercept.
The slope of the line of the best fit would be -
{m} = 3
Therefore, the slope of the line of best fit is {m} = 3.
To solve more questions on statistics, visit the link below -
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If you help me i’ll mark you brainlyest!!
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Answer:
y=3x-4
Step-by-step explanation:
. What is the negative solution to this equation?
8x2 – 4x = 363
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Answer:
- x = 81 and 3/4
Step-by-step explanation:
8 × 2 – 4x = 363
16 - 4x = 363
Subtract 16 from each side:
16 - 16 - 4x = 363 - 16
- 4x = 327
Divide each side by 4:
- 4x ÷ 4 = 327 ÷ 4
- x = 81 and 3/4
(20x^3+50x^2+2x)/10x
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Answer:
2x^2+5x+1/5
Step-by-step explanation:
i typed this on a calculator.
Answer: 20x^4+50x^2+2x^2/10
One T-Shirt is sold for every 5 people who attend a concert. What is the ratio of people to T-shirts sold?
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Using the graph, deter ne the value of the slope.
What is the slope?
What is true about the graph?
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Answer: the slope is 2, and the graph is horizontal
Step-by-step explanation:
Really confused on this question. Need help Asap
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Answer:
y = 5x + 700
y = 7x + 400
Step-by-step explanation:
Simplify the expression x - 2/3 - 1/2x .
(A) 1/2x - 2/3
(B) -1/3x - 3/4
(C) 1/4x - 1/2
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Answer:
View Highlighted Part in Picture!
Step-by-step explanation:
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What are the values of a, b, and c in the quadratic equation 0 = 5x - 4x? - 2?
O a5,b=402
O a =5, 4,0-2
a4, b5,
C2
a = 4b = 5,2
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Answer:
a = -4; b = 5; c = -2
Step-by-step explanation:
quadratic equation: ax^2 + bx + c
a will allways have x squared
b will always have an x
c will always be alone, as it is a constant
A bag contains 15 green, 18 yellow, and 16 orange balls. One ball is randomly selected. To the nearest percent, what is the probability of the event? Drag and drop the correct value into the box. P(yellow)= Response area The option "37%" (3 of 4) has been grabbed. Press tab to choose where to drop it. Drop it by pressing the spacebar key. Cancel the operation by pressing escape.
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Answer:
37%
Step-by-step explanation:
15+18+16=49
49/.37=18.13
Your biggest number is 18 so that means 37%
10. Select all of the phrases that could be represented by the algebraic expression 2k - 4
a. The difference between number k and 4
b. 4 fewer than the product of 2 and a number k
c. The product of 2 and the quantity 4 and a number k
d. 4 less than 2 times a number k
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Mind helping ? I have 9 more pictures I'll make u brainly, and a few coins
Thanks,
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1. Find the circumference of the circle. Use 3.14 for x
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Answer: 21.991
thats what i got
Which ordered pair describes the location of the point shown on the
coordinate system below?
10.
10
10
A. (3,-5)
B. (-5,3)
C. (3,5)
D. (-5, -3)
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Your answer is A!
Step-by-step explanation:
Your answer is A!
The coordinate point from the given graph is (3, -5). Therefore, option A is the correct answer.
What is coordinate plane?A coordinate plane is a two-dimensional surface formed by two number lines. It is formed when a horizontal line (the X-axis) and a vertical line (the Y-axis) intersect at a point called the origin. The numbers on a coordinate grid are used to locate points.
From the given coordinate plane, the coordinate point lies in fourth quadrant.
Where, x-coordinate is positive and y-coordinate is is negative.
The coordinate point correspond to x-axis is 3 and coordinate point correspond to y-axis is 5.
So, the coordinate point is (3, -5)
Therefore, option A is the correct answer.
Learn more about the coordinate plane here:
https://brainly.com/question/24134413.
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Eli made 2 peanut butter jelly sandwiches and cut each one into fourths. How many 1/4 sandwich pieces can Eli have?
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The Mackenzie family celebrates with movie night every Saturday night. Their favorite snack is popcorn mixed with M&Ms, and they think the perfect mixture is ounces of popcorn and ounces of M&Ms.
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Answer:
more info?
Step-by-step explanation:
Triangle E F G is shown. Angle G F E is a right angle. The length of G F is 3 and the length of E F is 4.6. Which equation could be used to find m∠E in △EFG? m∠E = cos–1(StartFraction 3 Over 4.6 EndFraction) m∠E = cos–1(StartFraction 4.6 Over 3 EndFraction) m∠E = tan–1(StartFraction 3 Over 4.6 EndFraction) m∠E = tan–1(StartFraction 4.6 Over 3 EndFraction)
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Answer:
m∠E = tan–1(StartFraction 3 Over 4.6 EndFraction)
Step-by-step explanation:
Given the following
m<GFE = 90 degrees
GF = 3
EF = 4.6
The side opposite to m<E is GF
Adjacent side is EF
Using the SOH CAH TOA identity
tan theta = opp/adj
tan m<E =GF/EF
Substitute the given values
tan m<E = 3/4.6
m<E = tan^-1 (3/4.6)
Hence the required result is m∠E = tan–1(StartFraction 3 Over 4.6 EndFraction)
Answer:
The answer is c
Step-by-step explanation:
A right angled triangular prism has length 3m, breadth 2m and height 2.5m. If the mass of the prism is 3.4kg, find its density
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Answer:
The density of the prism is 0.453 kilograms per cubic meter.
Step-by-step explanation:
Let suppose that mass in the prism is uniformly distributed. Then, the definition of density ([tex]\rho[/tex]), in kilograms per cubic meter, is defined by the equation below:
[tex]\rho = \frac{m}{V}[/tex] (1)
Where:
[tex]m[/tex] - Mass, in kilograms.
[tex]V[/tex] - Volume of the right angle triangle prism, in cubic meters.
Besides, the volume of the right angle triangle prism is:
[tex]V = \frac{1}{2}\cdot b\cdot h\cdot l[/tex] (2)
Where:
[tex]b[/tex] - Breadth of the base, in meters.
[tex]h[/tex] - Height of the base, in meters.
[tex]l[/tex] - Length of the base, in meters.
If we know that [tex]b = 2\,m[/tex], [tex]h = 2.5\,m[/tex], [tex]l = 3\,m[/tex] and [tex]m = 3.4\,kg[/tex], then the density of the prism is:
[tex]V = 7.5\,m^{3}[/tex]
[tex]\rho = 0.453\,\frac{kg}{m^{3}}[/tex]
The density of the prism is 0.453 kilograms per cubic meter.
Select no real solution, one real solution, or infinitely many real solutions for each of the following equations.
No Real Solution One Real Solution Infinitely Many Real Solutions
√x – 13=-4
2√x+10=8
2/x-1= 3/x+2
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Answer:
one real solution
no real solution
one real solution
Step-by-step explanation:
Paulo has 110 of a dollar in his pocket. How many dollars does he have?