The simplest form of the expression -2x^2(x-5)+x(2x^2-10x)+x is ?
MIDDLE SCHOOL MATH On the subway 8 out of 10 people are carrying a briefcase. Based on this information, if there are 700 people on the subway, then about how many do NOT have a briefcase?
Answer:
140
Step-by-step explanation:
If 8 out of 10 are carrying a briefcase, that means 2 out of 10 are not carrying one.
Use a proportion to find how many don't have a briefcase with 700 people
Let x represent the number of people without a briefcase:
[tex]\frac{2}{10}[/tex] = [tex]\frac{x}{700}[/tex]
Cross multiply and solve for x
10x = 1400
x = 140
So, 140 people do not have a briefcase
Answer:
140
Step-by-step explanation:
8/10 people, there's 700 people
10 multiplied by 70 =700.
2 people dont have briefcases = 2 times 70=140
The corner store sells one of its magazines for $ 6.75 including tax. On one weekend the store collected $ 114.75nfrom the sale of this particular magazine. What expression can be used to find the number of magazines, n, sold by the store for that weekend?
6.75÷114.75=n
6.75÷n = 114.75
6.75n=114.75
6.75 + n= 114.75
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Answer:
(c) 6.75n=114.75
Step-by-step explanation:
If one magazine sells for 6.75, then n magazines will sell for a total of 6.75n. That total is said to be 114.75, so we have ...
6.75n = 114.75
Ans: 720cm
2
The ratio of the number of Malay students to the number of Indian students to the
number of Chinese students in a school is 5:4:8.
There are a total of 468 Indian and Chinese students.
What is the total number of students?
Ans:
Answer:
663
Step-by-step explanation:
the total number of students can be determined using this equation :
(total ratio of Chinese and Indian students / total ratio of students) x n = 468
total ratio of Chinese and Indian students = 4 + 8 = 12
total ratio of students 4 + 8 + 5 = 17
N = TOTAL NUMBER OF STUDENTS
12/17) x n = 468
multiply both sides of the equation by 17/12
n = 663
Hey please help with this one I promise I’ll mark you brainliest real anwsers tho :3
Answer:
Area is 364
Step-by-step explanation:
A parallelogram's area is equal to base times height. So it doesn't depend on the angle at all, as long as the base and height are constant.
That means that the area of the parallelogram on the left is the same as if it was a rectangle (an extension of the rectangle part on the right).
This brings us to the answer - the area is the same as the area of a 14x26 rectangle.
14*26=364
Alternatively, let's compute the area of the rectangle on the right:
18*14 = 252
And the area of the parallelogram
14 * (26-18) = 14*8 = 112
And the area of the composite figure is 252+112 = 364
Can Yall Help please lol. also this is for 20 points.
which set of numbers does not form a right triangle? a.)14,48,50 b.) 15,20,25 c.) 21,28,35 d,) 27,35,46
Answer:
maybe b?
Step-by-step explanation:
What is the product of the polynomials below?
(4x^3+8x)(x^2-3)
Answer:
4x^5 - 4x³ - 24x
Step-by-step explanation:
Answer:
4x^5 - 4x³ - 24x
Step-by-step explanation:
Distribute
[tex](4x^3+8x)(x^2-3)[/tex]
[tex]4(x^{2} -3)x^{3} +8x(x^{2} -2)[/tex]
Distribute
[tex]4(x^{2} -3)x^{3} +8x(x^{2} -2)[/tex]
[tex]4x^{5} -12x^{3} +8x(x^{2} -3)[/tex]
Distribute
[tex]4x^{5} -12x^{3} +8x(x^{2} -3)[/tex]
[tex]4x^{5} -12x^{3} +8x^{3} -24x[/tex]
Combine like terms
4x^5 - 4x^{3} - 24x
What is the equation of the line of best fit?
A.
y = 5x + 25
B.
y = x + 25
C.
y = 5x + 5
Answer:
y=5x+25
Step-by-step explanation:
The slope is (30-25)/(1-0)=5.
Also, the y-intercept is 25.
So, the equation is y=5x+25.
you took a test in social studies that was worth 100 points. how many points will you have to earn to get 88%?
Answer:
88 points.
Step-by-step explanation:
Answer:
You will have to have 88 points i think
Step-by-step explanation:
All real numbers greater than or equal to -7 and less than 2
Answer:
-7=<x<2
Step-by-step explanation:
Find the area of the figure.
Use a = 3.14
10 ft,
16 ft
8 ft
Answer: A = 132 . 93 cm 2
Step-by-step explanation:
A = lw
A = 8.7
A = 56cm2
A=2
A=(3.14)(7) 2
A 153 . 86 cm 2
76. 93 cm 2
A = 56cm 2 + 76.93 cm 2
A = 132 . 93 cm 2
The graph shows the distance traveled by an Olympic-level sprinter over time during a race.
Find the slope of the line, and complete the sentences below.
100 meter race graph of a diagonal line on a coordinate plane going up and to the right with Time in seconds on the x axis and Distance in meters on the y axis. The line begins at the origin and passes through the point 2 comma 20.
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Answer:
slope: 10 m/srepresents speed in meters per secondStep-by-step explanation:
The slope is the change in the quantity on the vertical scale, divided by the corresponding change in the quantity on the horizontal scale.
Here, the line goes from 0 to 100 meters on the vertical scale, corresponding to a change from 0 to 10 seconds on the horizontal scale. So, the slope is ...
m = (100 m)/(10 s) = 10 m/s . . . . slope of the line
The ratio of distance to time is given the name "speed", so ...
the slope represents the sprinter's speed in meters per second.
Where is the blue point on the number line?
Answer:
-6 pick mine as brainlest
Step-by-step explanation:
Which of the following events has a probability of 75% or higher?
a. choosing a consonant from the word leopards
b. landing on heads when flipping a coin
c. rolling a number greater than 1 on a die
d. choosing a consonant from the word horse
Answer:
D
Step-by-step explanation:
what is the value of the digit 8 in the number 78000? please no links
Answer:
The value of eight in the number 78000 is 8000.
Step-by-step explanation:
70,000+8,000=78,000
2. the sum of x and 9
Answer:
x + 9
Step-by-step explanation:
The sum of x and 9,
x + 9
Which expressions are equivalent to the one below? Check all that apply.
9x
A. 3. 3x
B. 32.34
O C. 3.32%
D. (3.3)*
E. 3*. 3x
F. 32x
Answer:
The answer would be A. 3.3x
Step-by-step explanation:
3.3x can be broken down as 3.3.x
3.3 equals 9 and the 'x' is multiplied to 9.
Hence, it equals to 9x.
The expressions are equivalent to the 9ˣ is
3²ˣ = 3ˣ . 3ˣ = (3 . 3)ˣ = 9ˣ
Option C, D and F are correct.
What is Expression?
In mathematics, an expression is a phrase that has at least two numbers or variables and at least one math operation. Addition, subtraction, multiplication, or division are all examples of math operations. An expression's structure is as follows:
(Number/variable, Math Operator, Number/variable) is an expression.
We have to find the Equivalent Expression to
So, we will check each option one by one as
1. 3² * 3ˣ
[tex]3^{2+x[/tex] ≠ 9ˣ
2. 3 * 3²ˣ
[tex]3^{1+2x[/tex] ≠ 9ˣ
3. 3²ˣ
= (3²)ˣ
= 9ˣ
4. 3ˣ x 3ˣ
= 3(ˣ⁺ˣ)
= 3²ˣ
= (3²)ˣ
= 9ˣ
5. 3 x 3ˣ ≠ 9ˣ
6. (3 . 3)ˣ
= 9ˣ
Learn more about Equivalent Expression here:
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I need help please ????!!!
What is the value of n??
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Answer:
73.6°
Step-by-step explanation:
The whole is the sum of the parts:
n = 44.5° +29.1°
n = 73.6°
Answer and Step-by-step explanation:
To find the value of n, we must add the two given angles first.
Why?
We add these two angles together because we are shown that angle n encompasses both angles, meaning that the value of n must be the combination of the angles added together.
29.1 + 44.5 = n
Add.
73.6° = n
The value of n is 73.6°.
#teamtrees #PAW (Plant And Water)
Find the circumference and the area of a circle
with the dimensions listed. Use the value 3.14 for π
,and do not round your answers. Be sure to
include the correct units in your answers.
a) diameter of 3 cm
b) radius of 5 ft
In response to the question, we may say that As a result, the radius of the circle is 9.42 cm and its area is 7.065 cm sq
What is circle?A circle seems to be a two-dimensional component that is defined as the collection of all places in a jet that are equidistant from the hub. A circle is typically shown with a capital "O" for the centre and a lower portion "r" for the radius, which represents the distance from the origin to any point on the circle. The formula 2r gives the girth (the distance from the centre of the circle), where (pi) is a proportionality constant about equal to 3.14159. The formula r2 computes the circumference of a circle, which relates to the amount of space inside the circle.
a) 3 cm diameter: The radius (r) of a circle is half its diameter, hence r = 3 cm/2 = 1.5 cm
The formula C = 2r gives the circumference of a circle, where is approximately equivalent to 3.14.
As a result, C = 2 3.14 1.5 cm = 9.42 cm.
The formula A = r2 calculates the area of a circle.
As a result, A = 3.14 (1.5 cm)2 = 7.065 cm sq.
As a result, the radius of the circle is 9.42 cm and its area is 7.065 cm sq
To know more about circle visit:
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Use the given degree of confidence and sample data to construct a confidence interval for the population proportion p. Hint: the sample proportion ( p hat) is x/n. n=195, x= 162; 95% confidence
Answer:
Use the given degree of confidence and sample data to construct a confidence interval for the population proportion p. 16)n = 182, x = 135; 95 percent
✓ 16)n = 182, x = 135; 95 percent sample proportion: p-hat = 135/182 = 0.74 E = 1.96*sqrt[0.74*0.26/182] = 0.0637 95% CI: 0.74-0.0637 < p < …
Explain the parts of an algebraic expression and what algebraic expressions can represent.
Step-by-step explanation:
Answer: An algebraic expression is a mathematical expression that consists of variables, numbers, and operations. We can use algebraic expressions to represent unknown number situations involving addition, subtraction, multiplication, and division.
Answer:
Answer: An algebraic expression is a mathematical expression that consists of variables, numbers, and operations. We can use algebraic expressions to represent unknown number situations involving addition, subtraction, multiplication, and division.
Step-by-step explanation:
Its The sample
EDG
how to find selling price when cost price and profit is given
so the selling price is pretty much the cost price + the profit
so its
selling price = cost price + profit
If the area of a right-angled triangle is 47 56 cm and its height is 11.6 cm. finds its base.
Answer:
820
Step-by-step explanation:
Hi so if your area is 4756, the base would be 820
Help please!! | No links!!
What is the measurement of the angle below?
Answer:
210 degrees
Step-by-step explanation:
The line is pointing at 210 degrees. You just have to turn the picture.
What is the value of the variable x?
Answer:
x = [tex]\sqrt{2}[/tex]
Step-by-step explanation:
pythagorean theorem:
x² + 2² = ([tex]\sqrt{6}[/tex])²
x² + 4 = 6
x² = 2
x = [tex]\sqrt{2}[/tex]
Determine the average percent of change from 1960–2000
1960 1970 1980 1990 2000
$0.25 $0.36 $1.19 $1.35 $1.26
show your work
Answer:
1970 +46%
1980 +232%
1990 +14%
2000 -8%
Step-by-step explanation:
help me pls due today
Answer:
i really dont know but i hope you get it right good luck
Step-by-step explanation:
Does this data determine a linear function?
A) Yes
B) No
Answer:
A) yes
Step-by-step explanation:
10 ft
А
- “不
6 ft
v
10 ft -
12 ft
B
C | 12 ft
4 ft
4 ft
Answer:
58
Step-by-step explanation:
case I added it and I m right
