Answer:
x<18
Step-by-step explanation:
2+x<20
Answer:
(-5, 4)
Step-by-step explanation:
x^2 + x < 20 can be rewritten as a quadratic in standard form: x^2 + x - 20 < 0. Recognize that the graph of x^2 + x - 20 is that of a parabola that opens up. Because the y-intercept (0, -20) is below the x-axis, we know for certain tht the graph intersects the x-axis in two places. Our job is to determine the two horizontal intercepts, which in turn determine the solution set.
x^2 + x - 20 = 0 factors as follows: (x + 5)(x - 4) = 0, whose roots are -5 and 4.
These two roots form 3 intervals: (-infinity, -5), (-5, 4) and (4, infinity). We now must identify on which intervals x^2 + x - 20 is less than 0 (that is, on which intervals the graph is below the x-axis). Choose three test values for x: the first could be -6 (which is in the set (-infinity, -5) ); x^2 + x - 20 is + there, and so the graph is above the x-axis and x^2 + x - 20 is positive. Reject this.
Next, test x = 0; x^2 + x - 20 is negative there, meaning that x^2 + x - 20 < 0 and that x^2 + x < 20. Thus, the solution is (-5, 4). It can be shown that x^2 + x - 20 is positive again for x-values within the interval (4, infinity).
Evaluating
A computer program used one-third of the computers total memory. The computer had a memory of 58 gigabytes. Write an algebraic equation to represent this scenario.
36472 is a __% increase compared to 14921
Answer:
= 144.434% increase
Step-by-step explanation:
i think so but i could be wrong?
Ms. Vega read 20% of the Star Wars book. She read 8 pages of the book.
8. Enter the number of pages in the Star Wars book.
Answer: 40 pages in total
Step-by-step explanation:
Ms. Vega has read 20% of the book and this translates to 8 pages of the book.
20% = 8 pages
Assume the total number of pages is x:
20% * x = 8
0.2x = 8
x = 8 / 0.2
x = 40 pages in total
Answer:
40 pages in book
Step-by-step explanation:
8 pages read
8/40 = .20
If ben completes 1/4 of his book report in 5/6 of an hour how much of the book report does ben complete per hour?
Answer: Ben completes 3/10 of his book report per hour
Step-by-step explanation:
Ben completes 1/4 of his book report in 5/6 of an hour
5/6 of an hour = 5/ 6 x 60 = 50 minutes
Therefore in 1 hour, which is = 60 minutes he completes
(1/4 x 60 minutes)/ 50 minutes
= 15/ 50
= 3/10 of his book report.
One-third of a number decreased by six equals eight. What is the number?
6
Answer:
The number is 42.
Mike installed the window shown. How many square feet is the window? Use 3.14 for pi. Round to the nearest tenth.
Answer: 3.9ft²
Step-by-step explanation:
Find the area of the rectangle first:
= Length * Width
= 2 * 1.5
= 3 ft²
Find the area of the semi-circle by finding the area of a circle and dividing it by 2:
= πr²
= 3.14 * 1.5/2 * 1.5/2
= 1.76625ft²
Divide by 2:
= 1.76625/ 2
= 0.88 ft²
Add the area of the rectangle to the semi-circle:
= 3 + 0.88
= 3.9ft²
Which of the following is a geometric sequence?
A:0, 2, 6, 12, 72, . . .
B:1/2,2/3,3/4,4/5,5/6
C:4, 9, 14, 19, 24, . . .
D:1, 3, 9, 27, 81, . . .
Answer:
D
Step-by-step explanation:
to find the next term multiply by 3
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Answer:
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Step-by-step explanation:
You have $3.10 in dimes and quarters.You have 3 more dimes than quarters. write an equation that relates the number of coins and have any equation for the value of the coins.how many of each kind of coin do you have?
Answer:
y=Q+3D
Step-by-step explanation:
the total amount is y=, than A would be quarters. and you add 3 because there's always 3 more dimes than quarters than add D for dimes.
The system of equations is 0.10x + 0.25y = 3.10 and x = y + 3. The number of dimes and quarters will be 11 and 8, respectively.
What is the solution to the equation?The allocation of weights to the important variables that produce the calculation's optimum is referred to as a direct consequence.
You have $3.10 in dimes and quarters. You have 3 more dimes than quarters.
Let 'x' be the number of dimes and 'y' be the number of quarters. Then the equation is given as,
0.10x + 0.25y = 3.10 ...1
x = y + 3 ...2
From equations 1 and 2, then we have
0.10(y + 3) + 0.25y = 3.10
0.10y + 0.30 + 0.25y = 3.10
0.35y = 2.8
y = 8
Then the value of 'x' is given as,
x = 8 + 3
x = 11
The system of equations is 0.10x + 0.25y = 3.10 and x = y + 3. The number of dimes and quarters will be 11 and 8, respectively.
More about the solution of the equation link is given below.
https://brainly.com/question/545403
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someone please help me I need to know asap
Answer: 3
Step-by-step explanation:
f(x)= -x + 4
Therefore f(-1)= -(-1)+4= 1+4= 5
h(x)= (3/2)x - 1
Therefore h(2)= (3/2)(2) -1= 3-1= 2
f(-1) - h(2)= 5 - 2= 3
R(-2,8) S(10,6) midpoint
Answer:
M = (4,7)
Step-by-step explanation:
If points are (x₁,y₁) and (x₂,y₂), then the midpoints are given by :
[tex]M=(\dfrac{x_1+x_2}{2},\dfrac{y_1+y_2}{2})[/tex]
We have,
x₁ = -2, y₁ = 8, x₂ = 10 and y₂ = 6
So,
[tex]M=(\dfrac{-2+10}{2},\dfrac{8+6}{2})\\\\=(\dfrac{8}{2},\dfrac{14}{2})\\\\=(4,7)[/tex]
So, the midpoints of the given points are (4,7).
Agree or Disagree
Rotating a regular decagon by 75° carries the decagon onto itself.
A pack of Skittles 30% are red , 20% are orange, 25% are yellow, 15% are green, and 10%are purple. Find the number of Skittles of each color that are in the bag.
giving brainliest help
Answer:
The first one
Step-by-step explanation:
GENIUS OR ANYONE PLZ PLZ PLZ ANSWER THIS QUESTION
Answer:
A
Step-by-step explanation:
Answer:
The answer is lovely c
Carlos was accepted to a university that has a tuition cost of $33,000 per year. He took out a loan from the bank for the entire $33,000 and made loan payments of $415 per month for 8 years. After the 8-year period, how much more than the tuition cost did Carlos pay? F. $6,840 G. $4,980 H. $4,860 J. $3,320 K. $3.120
Answer:
F. $6,840
Step-by-step explanation:
8x12=96
415x96=39,840
39,840-33,000 = $6,840
Mr. Doyle washed 1 4 of his laundry. His son washed 3 7 of it. Who washed most of the laundry? How much of the laundry still needs to be washed?
His son washed more laundry, and 9/28 still needs to be done.
Answer:
his son washed the most
Step-by-step explanation:
3/7 is greater than 1/4
PLEASE HELP ASAP IF YOU RIGHT YOU GET BRAINLLEST
The following parallelogram is reflected over the x-axis and then reflected over the y-axis. What are the coordinates of the vertices of the image?
(2, 1), (1, -1), (-2, -1), (-1, 1)
(1, 2), (-1, 1), (-1, -2), (1, -1)
(1,1), (2, -1), (-2, 1), (-1, -1)
(1, 1), (-1, 2), (1, -2), (-1, -1)
Answer:
its number 3
Step-by-step explanation:
Answer:
answer
Step-by-step explanation:
(-4, 0)
(-9, 0)
(-9, 5)
(1, 5)
29.
After 5 years, the sum of the ages of Reema and Neha will be 30. If Reema is 4 years
younger than Neha today, then find the sum of the present ages of Reema and Neha.
years
Answer:
Sum of their present ages = 20 years
Step-by-step explanation:
Present age :
Neha's age = x years
Reemas' age = x - 4
After 5 years:
Neha's age = (x +5) years
Reemas' age = (x - 4 + 5 ) = x + 1
Sum of the ages of Reema and Neha will be 30
Therefore,
x + 5 + x + 1 = 30
x + x + 5 + 1 = 30
2x + 6 = 30
2x = 30 - 6
2x = 24
x = 24/2
x = 12
Neha's age = 12 years
Reema's age = 12 - 4 = 8 years
Sum of their present ages = 12 + 8 = 20 years
Can Anybody Solve this and send the pic of the ans!
Answer:
solve it yourself
Step-by-step explanation:
length of ist part= 30 cm
breadth of ist part = 21 cm
area of ist part = 630 cm
diameter of 2nd part= 21 cm
area of 2nd part = ¼dπ
π= 22/7
= ¼× 21 ×22/7
=3×10.5
= 31.5cm²
total area = ist part +2nd part + 3rd part
=
If cos(t) =
−
1
2
and tan(t) < 0, find sin(t) and cos(-t)
Answer:
cos theta=-1/2
theta=cos-¹(-1/2)=120
tan theta=tan 120=-√3
sin theta=sin120=√3/2
cos(- theta)=cos theta=cos 120=-1/2
h(x) = x²- 5x + 7
a). h(2)
b).h(-5)
c). h(-8)
The volume of a cube related to the area of a face by the formula V =A^3/2. What is the volume of a cube whose face has an area of 25mm^2.
Answer:
Volume = 125 mm^3
Step-by-step explanation:
Here, we want to get the volume of the cube
What we have to do here is to substitute the value of the area
We have this as
:
V = 25^(3/2)
V = (√25)^3
V = 5 * 5 * 5 = 125 mm^3
The sum of two integers is 20 and the sum of their square is less than 362. Find all pair of integers that satisfy the given condition
Answer:
19 and 1
Step-by-step explanation:
19+1=20
19²+1²=361
361<362
ANSWER THIS PLEASE :)
Answer: it’s hamburger
Step-by-step explanation:
Just kidding it’s c
Which of the following is the solution to
the equation below?
X – 1.4 = 0.6
A 0.8
C 1.2
B 1.0
D 2.0
Answer: D
Step-by-step explanation:
Drag each angle measure to the correct location on the image. Not all angle measures will be used.
Determine the measures of the angles.
35°
70°
75°
100°
105°
110°
Answer:
i believe this is the question you asked added picture of correct answer on graded test
Step-by-step explanation:
A scale drawing of a room is shown below. In the drawing, the room is 73 inches long and
5 inches wide. What is the actual area of the room?
Answer:
The answer is 365
Step-by-step explanation:
just do 73 times 5 and you get your answer
You deposit $750 in a bank
account that will earn a simple
interest of 3.5% per year.
How much will your investment
be worth after 12 years?
Answer:
$1,065
Step-by-step explanation:
Simple interest equation: A=P(1+rt)
P (principal amount) = 750, r (rate) = 3.5%, t (time) = 12 years
A=750(1+(3.5)(12))
A=1065
The amount of an investment to be worth after 12 years should be considered as the $1,065
Calculation of an investment:Since
The deposited amount is $750
The rate of interest is 3.5% per year.
And, the time period is 12
So,
A=750(1+(3.5)(12))
A=1065
Hence, The amount of an investment to be worth after 12 years should be considered as the $1,065
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Answer is 2nd answer
