Answer:
c=-9x^2-15x
Step-by-step explanation:
Answer:
c = 6.25
Step-by-step explanation:
For this to occur, the discriminant of the quadratic formula must = 0
b^2 - 4ac = 0
15^2 - 4(9)(c) = 0
36c = 225
c = 6.25
If x=5 and y=7, evaluate the following expression:
20−(3y−4x)
Answer:
[tex]\huge\boxed{\bf\:19}[/tex]
Step-by-step explanation:
Given,
x = 5y = 7Now, the expression is: [tex]20 - (3y - 4x)[/tex].
To solve this question we just need to substitute the values of x & y in the given expression. Then,
[tex]20 - (3y - 4x)\\= 20 - (3(7) - 4(5))\\= 20 - (21 - 20)\\= 20 - 1\\= \boxed{\bf\:19}[/tex]
[tex]\rule{150pt}{2pt}[/tex]
pls help i need a good grade pls
Answer:
[tex]4*\frac{1}{6}[/tex]
Step-by-step explanation:
The number lines end points are 0 and 1 so the whole number line has a value of 1.
The number line is also broken up into 6 sections.
Then we have the pink rectangles that cover up each section. There are 4 of them and each cover 1/6 of the number line
So the expression that would represent the model would be 4 x 1/6
Answer:
4 * 1/6
Step-by-step explanation:
So to begin, I would find out what all the answers are equal to.
4 * 1/8 = 4/8 = 1/2
4 * 1/4 = 4/4 = 1
4 * 1/6 = 4/6 = 2/3
4 * 1/3 = 4/3
Next I would rule out all the answers bigger or equal to one, so 4 * 1/4 and 4 * 1/3.
Last, this fraction splits one into six parts, and 4 parts are highlighted. 4/6 is equal to 4/6. Your answer is 4 * 1/6
The sum of two times a number and seven is five times the difference of a number and six. Solve for the variable then Round your answer to the nearest hundredths.
Answer:
4.33
Step-by-step explanation:
2N + 7 = 5N - 63N = 13N = 13/3N = 4.33
Inflation is causing prices to rise at a rate of 10% per year. For an item that costs $300 today, what will be in 4 years?
Answer:
I'd say 439.3!
Step-by-step explanation:
I'm so sorry if this is wrong!
I need some help solving this problem as soon as possible please!
Choose the correct ordered pairs represented in the table. The following table gives per unit costs for furniture and
shows selling prices. The numbers represent hundreds of dollars.
Step-by-step explanation:
an ordered pair is always the combination of an input value and the corresponding output value.
so, it is all already written in the table :
(1, 1)
(2, 4)
(3, 9)
(4, 16)
(5, 25)
Answers:
The ordered pairs are:
(1,1)(2,4)(3,9)(4,16)(5,25)================================================
Explanation:
The top row represents the inputs, while the bottom row is the outputs.
Each ordered pair is of the form (input, output)
Each column represents a different ordered pair.
For example, the last column has the input 5 and output 25 to give the ordered pair (5,25)
Extra Notes:
Usually x is the input and y is the output. In this case, we have c as the input and f(c) as the outputThe function rule in this case is f(c) = c^2Find the value of x in the triangle shown below.
=
२०
14
14
50°
18
Answer:
x = 87
Step-by-step explanation:
37 + 56 = 93
triangles always equal to 180
180 - 93 = 87
the circumference of a circle is 110 cm . find its area
Answer:
It's about 962.89 cm^2
Answer:
962.89cm^2
Step-by-step explanation:
So, in this question, you have to find the radius of the circle because the area of a circle = πr^2. So first, you find r^2, and to do that, you divide 110 by π and you get 35.0140874802, now divide that by two and you get 17.5070437401 and that is your radius. Now, you do 17.5070437401 to the power of 2 (17.5070437401^2) and you get 306.496580518. Now multiply that by π and you get 962.89.
brainliest p l z
select the option for ? 3, 5, 12, 55, 648, ?
Answer:
What option are you talking about for, is it for your quiz or for your classwork
What are the surface areas of these two prisms
Which of the following functions has an inverse that is not a function?
Answer:
[tex]f(x) = x(x - 1)[/tex]
Step-by-step explanation:
The inverse of a quadratic function is not a function.
fred buys a shipment of fruit that consists of only apples and oranges. for every 3 apples, there are 2 oranges. if there are 5 dozen pieces of fruit total, how many are oranges?
Answer:
24
Step-by-step explanation: 5 dozens = 60 so 3 +2=5 . 60 / 5 = 12 12 x 2 = 24
What is area of the irregular figure below? 6in 4in 12in
Composite figures can be subdivided into standard shapes. The area of the considered composite shape is 112 sq. cm
How to calculate the area of a composite figure?Area of some standard shapes like circle, triangle, parallelogram, rectangle, trapezoid, etc is already derived.
When some shape comes which isn't standard figure, then we find its area by slicing it (virtually, like by drawing lines) in standard shapes. Then we calculate those composing shapes' area and sum them all.
Thus, we have:
[tex]\text{Area of composite figure} = \sum (\text{Area of composing figures})[/tex]
That ∑ sign shows "sum"
The missing image is attached below.
We can split this composite figure in two parts by extending the line CG to meed AE on the point D. It makes a square (top) and a rectangle(bottom) as shown in the right sided image.
Area of the figure = Area of the top square + Area of the bottom rectangle.
Finding area of the top figure ABCD:Length of AE = |AE| = 16 cm
|AE| = |AD| + |DE| = 16
|DE| = |GF| = 8 cm
Thus, we get:
|AD| + 8 = 16
|AD| = 8 cm
Assuming the sides AD and BC are parallel, and so as the pair of sides AC and BD, and adjacent sides are perpendicular, its a rectangle with length = width = 8 cm, so its a square of side length 8 inches.
Area of square ABCD of side length 8 inches = [tex]\rm side^2 = 8^2 = 16 \: cm^2[/tex]
Finding area of the bottom figure DEFG:Assuming opposite sides of DEFG are parallel to each other and adjacent ones are perpendicular, we get:
|DE| = |GF| = 8 cm
|EF| = |DG| = |DC| + |CG| = |AB| + |CG| = 8+8 = 16 inches
Thus, its a rectagle with dimensions of 8 cm by 16 cm.
Thus, its area is: [tex]\rm Length \times width = 8 \times 12 = 96 \: \rm cm^2[/tex]
Thus, area of the composite figure = 16 + 96 = 112 sq. cm.
Learn more about area of a composite figure here:
https://brainly.com/question/10254615
#SPJ1
If f(x) =1/x and g(x) = x - 2 what is f(g(x)) when X = 1
Answer:
f(g(x)) = -1
Step-by-step explanation:
[tex]f(x) = \frac{1}{x} \\ \\ g(x) = x - 2 \\ \\ \implies \: f(g(x)) = \frac{1}{x - 2} \\ \\ \implies \: f(g(1)) = \frac{1}{1 - 2} \\ \\ \implies \: f(g(1)) = \frac{1}{ - 1} \\ \\ \implies \: f(g(1)) = - 1[/tex]
does 4x^2=0 have 2 solutions
Answer:
it has only one solution x = 0
Step-by-step explanation:
4x² = 0
⇔ x² = 0 (4 > 0)
⇔ x = 0 (the formula: x² = 0 ⇔ x = 0)
Can someone please help me with 4, 5, 6, 7, 8
The area of a rectangle is 99 ft2, and the length of the rectangle is 7 ft more than twice the width. Find the dimensions of the rectangle.
Length: ft
5 ?
Width:
Answer:
[tex]Width = 11/2ft, Length = 18ft[/tex]
Step-by-step explanation:
I'm not sure this might be right, hope this is helpful!
2x-y=-2 & x-2y=-16
It's due in an hour and I'm almost done :)
Chad is making trail mix for his next hiking club meeting. He mixes 2 pounds of peanuts, 2 pounds of raisins, and 1 pound of chocolate chips. His little sister asks him for a snack, so he gives her 5 ounces of the trail mix. Then, he portions out the rest for his meeting. If Chad splits the remaining trail mix evenly among 25 snack bags, how many ounces of trail mix will each bag have?
Answer:
3 ounces
Step-by-step explanation:
1 pound = 16 ounces
2(16) + 2(16) = 16 = 80 ounces of train mix - 5 from sister = 75 remaining
75 ounces of trail mix / 25 snack bags = 3 ounces of mix in each bag
a ball is kicked 26 m
ball starts at 26m
1st bounce = 13 m
2nd bounce = 6.5 m
3rd bounce = 3.25 m
4th bounce = 1.625 m
5th bounce = 0.8125 m
6th bounce = 0.40625 m
7th bounce = 0.203125 m
answer: 0.203125 meters
In a right triangle, a and b are the lengths of the legs and c is the length of the hypotenuse. If a=3 inches and b=1 inch, what is c? If necessary, round to the nearest tenth.
We are given with
a = 3 inches
b = 1 inch
and c = ?
So as it is a right triangle and a and b are for legs
also c is for hypotenuse
=> We can apply Pythagoras theorem
[tex]\:\bf\boxed{Pythagoras\: Theorem\: =>\: c \:= \:\sqrt{a²\: +\:b²}}[/tex]
=> [tex]\:\mathtt{\:c \:= \:\sqrt{(3)²\: +\:(1)²}}[/tex]
=> [tex]\:\mathtt{\: c \:= \:\sqrt{9\: +\:1}}[/tex]
=> [tex]\:\mathtt{\: c \:= \:\sqrt{10}}[/tex]
=> [tex]\:\mathtt{\: c \:= \:3.16}[/tex]
Required nearest tenth number for hypotenuse = 3.2 inches
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Please i really need help, i really need this i will give a brainliest to the people that answer correctly
Answer:
Graph B
Step-by-step explanation:
Replace y with x and vice versa.
y=1/2x+2 becomes x=1/2y+2
Then solve for y. Subtract 2 from both sides, then multiply by 2 which results in:
y=2x-4
Graph B is the one that has a y-intercept at -4 and a rise/run of 2.
You have a career and are given a salary of 45,000. If you have to pay 15% of your income in Federal and State taxes, how much money do you make after paying taxes? What is your monthly income?
Answer:
after taxes: $38,250monthly: $3,187.50Step-by-step explanation:
Your after-tax income is the gross pay less the amount that is paid to taxes. The monthly income is 1/12 of the annual amount.
__
The tax is the taxed amount multiplied by the tax rate.
taxes = $45,000 × 15% = $6,750
The after-tax income is the income less the taxes:
after-tax income = $45,000 -6,750 = $38,250
The monthly income is 1/12 of this amount:
monthly income = annual income/12 = $38,250/12 = $3,187.50
The Venn diagram shows the number of employers who ranked skills important for careers in their field.
C represents communication, T represents technical skills, and M represents the ability to handle money.
Circles C, T, and M overlap. Circle C contains 9, circle T contains 7, and circle M contains 19. The overlap of C and M contains 22, the overlap of M and T contains 21, and the overlap of T and C contains 18. The overlap of all 3 circles contains 25.
How many employers ask that employees be skilled in communication and handling money?
47
50
67
86
=======================================================
Explanation:
C = set of people skilled at communication
M = set of people skilled at handling money
Refer to the Venn Diagram shown below.
The blue region refers to the set of employees that are in circle C and in circle M.
Add up the numbers in the blue region to get 22+25 = 47
Find the volume and surface area of the trapezoidal prism.
Answer:
sa =45
vol = 6000.
I hope it helps. and if you can, give me the brainlist
In a class of 25 students, 13 have a brother and 9 have a sister. There are 7 students who do not have any siblings. What is the probability that a student chosen randomly from the class has a brother and a sister?
Answer:
Step-by-step explanation:
Discussion
9 with a sister
13 with a brother
7 with neither.
The total is 29 so you are counting some siblings twice. There are 29 - 25 students that have both, so 4 students have both.
P(brother and sister) = 4/25
P(brother and sister) = 0.16
Answer
P = 0.16
Yahaya, a Tailor started sewing an agabada dress at 9:45am. he completed the dress at 12:30pm. How long did he take to sew the dress
A circle with a radius of 9 millimeters.
Answer:
You didnt give us a question to answer, just a statement.
Step-by-step explanation:
There are 12 servings in a box of cereal. Each day, Ryan eats 2 servings of cereal. What fraction of the full box of cereal has Ryan eaten after 5 days?
First round 0.676 to the nearest tenth.
Answer:
0.7
Step-by-step explanation:
Since 7 is above 5, you round 0.676 to 0.7
Answer: 0.7
Step-by-step explanation:
The nearest tenth is one decimal space after the dot. ex: 0.1234
Therefore, rounding 0.676, the 7 is ≥ 5, therefore we round the 6 up one number. This means the 0.6 becomes 0.7.
hi! how do i do this?
Answer:
p = 2
Step-by-step explanation:
A rational function has a vertical asymptote where the denominator is zero.
__
Your function will have a denominator that is zero when ...
x -p = 0 ⇒ x = p
We are told there is a vertical asymptote at x = 2. That means ...
p = 2