Answer:
293
Step-by-step explanation:
✓85849=. 85849^1/2
= 293
please help me for this
Usando a propriedade distribuitiva, calcule as multiplicação
a) (4c-a)×(4c+a)
b) (4x-3)×(6x+1)
c) (x-y)×(x^2+5y)
Answer:
[tex]a) \left(4c-a\right)\times\left(4c+a\right)[/tex]
[tex]=\left(4c\right)^2-a^2[/tex]
[tex]=16c^2-a^2[/tex]
-------------------
[tex]b) (4x-3)\times(6x+1)[/tex]
[tex]=4x\times \:6x+4x\times \:1+\left(-3\right)\times \:6x+\left(-3\right)\times \:1[/tex]
[tex]=4\times \:6xx+4\times \:1\times \:x-3\times \:6x-3\times \:1[/tex]
[tex]=24x^2-14x-3[/tex]
-------------------
[tex]c)(x-y)\times(x^2+5y)[/tex]
[tex]xx^2+x\times \:5y+\left(-y\right)x^2+\left(-y\right)\times \:5y[/tex]
[tex]=x^2x+5xy-x^2y-5yy[/tex]
[tex]=x^3+5xy-x^2y-5y^2[/tex]
OAmalOHopeO
How many 1/2 minutes are there in 3/2 minutes
Answer:
There are 3 Half minutes in 3/2 minutes
Step-by-step explanation:
We Start with two fractions
A : 1/2
B : 3/2
Since the denominator (The Second Number) is the same we don't need to change our fractions!
We can then just divide 3/2 by 1/2 to get our answer!
3/2 / 1/2 = 3
8. Anneke is swimming the 500-meter freestyle, which consists of swimming the length of a pool 20 times. If Anneke averages 26.4 seconds per length of pool, write an equation that could be used to determine the number of meters (m) Anneke has left in the event after swimming for s seconds.
Answer:
Anneke will swim 20 lengths in the 500-meter event,
which means each length of the pool is = 500/20
= 25m
also since Anneke can swim one length in 26.4 seconds on average
hence her average speed is = 25/26.4 m/s
hence after a seconds,
the distance traveled = 25s/26.4 meter
thus, the remaining distance Anneke need to travel is:
m = 500 - (25s/26.4)
Find the volume of a pyramid with a square base, where the area of the base is 12.5 ft ^2 12.5 ft
2
and the height of the pyramid is 16 ft. Round your answer to the nearest tenth of a cubic foot.
Answer:
833.3 ft^3
Step-by-step explanation:
The formula for the volume of a pyramid is:
V = (lwh)/3
V = volume
l = length of base
w = width of base
h = height of pyramid
Now we just correspond the values with the variables:
l = 12.5
w = 12.5
h = 16
And plug these values into the formula:
((12.5)(12.5)(16))/3
((156.25)(16))/3
2500/3
833.3 ft^3
Hope this helps (●'◡'●)
The solution is : the volume of a pyramid with a square base is 833.3 ft^3.
What is volume?In mathematics, volume is the space taken by an object. Volume is a measure of three-dimensional space. It is often quantified numerically using SI derived units or by various imperial or US customary units. The definition of length is interrelated with volume.
here, we have,
we know that,
The formula for the volume of a pyramid is:
V = (lwh)/3
V = volume
l = length of base
w = width of base
h = height of pyramid
Now we just correspond the values with the variables:
l = 12.5
w = 12.5
h = 16
And plug these values into the formula:
=((12.5)(12.5)(16))/3
=((156.25)(16))/3
=2500/3
=833.3 ft^3
Hence, The solution is : the volume of a pyramid with a square base is 833.3 ft^3.
To learn more on volume click :
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A polynomial p has zeros when x = -2, x = 1/3, and x =3.
What could be the equation of p? Choose 1 answer:
a. p(x) = (x + 2)(x + 3)(3x + 1)
b. p(x) = (x + 2)(x + 3) (3x - 1)
C. p(x) = (x + 2)(x - 3)(3x - 1)
D. p(x) = (x - 2)(x + )(3x + 1)
Answer:
p(x) = ( x +2) (3x - 1) ( x-3)
Step-by-step explanation:
We know the equation for a polynomial with given zeros is
f(x) = a(x-b1) (x-b2)...... where b are the zeros and a is a constant
Since the zeros are x = -2, x = 1/3, and x =3.
p(x) = a( x - -2) (x - 1/3) ( x-3)
p(x) = a( x +2) (x - 1/3) ( x-3)
We can pick the value of a since we are not given a point on the function. Pick a=3
p(x) = 3( x +2) (x - 1/3) ( x-3)
Rewriting the second term
p(x) = ( x +2) (3x - 1) ( x-3)
Please help!! I am literally in tears!!
Without graphing, explain how you know the equation
y = - 1/2x^2 - 7 will be compressed
(compared to the parent function of y=x^2).
Answer:
" because the coefficient of the x^2 term is less than 1 (between -1 and + 1)
y = x^2 looks like a big U with the vertex (bottom) "kissing" the origin (0,0)
if you add 1 to the equation y = x^2 + 1 it shifts UP one
if you subtract 3 y = x^2 -3 it shifts down three ....
if you change it to look like this y = (x+4)^2 it shifts (slides) to the LEFT 4 units..
note that this slide is opposite to the sign + 4 left slide , - 4 right slide...
NOW YOUR QUESTION !!!! if the coefficient is > 1
y = 99 x^2 then the graph gets "skinny" goes up faster...
if it is less than one (between -1 past 0 to +1 ) then it flattens out
Bottom line here your coefficient is a "-1/2"
so YOUR GRAPH IS A ∩ (goes downward) and is FLATTER than the normal ∪
I hope that this helps
Step-by-step explanation:
Which of the following is a defined term?
Angle
Line
Point
Plane
Angle is a defined term.
What is defined term?
In geometry defined term, that have a formal definition and can be defined using other geometrical terms is called a defined term.
According to the given question
We have some terms
Angle, Line, Point and Plane
Now,
In geometry, we can define an angle using undefined term of a line. That is we define an angle as the corners that are created when two non-parallel lines intersect each other, so angle is a defined term.
In Geometry, we define a point as a location or size .
A line is defined as something that extends infinitely in either direction but has no width and is one dimensional.
While plane extends infinitely in two dimensions.
Hence, line, point and plane are undefined terms.
Learn more about defined and undefined terms here:
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Expand : (3x+5y)²
please answer
Answer:
FOIL: [tex]9x^2 +30xy + 25y^2[/tex]
(3x + 5y)(3x+5y)
F: 3x*3x
O: 3x*5y
I: 5y*3x
L: 5y*5y
[tex]9x^2 +30xy + 25y^2[/tex]
Step-by-step explanation:
What Kind of Triangle is shown?
A. Isosceles Triangle
B. Acute Triangle
C. Scalene Triangle
D. Equilateral Triangle
Answer:
C
Step-by-step explanation:
C because it has sides unequal in length.
Answer: C
Step-by-step explanation:
Isosceles: 2 sides equal
Acute: angles are less than 90 degrees
Scalene: All side lengths are different
Equilateral: All sides are equal
Basic Cable Company A charges $30 per month plus a setup fee of $75. Basic Cable Company B charges $40 per month, but due to a special promotion is not currently charging a setup fee. Write an equation for each cable company modeling the total cost y for a subscription lasting x months. When is it more economical for a person to choose Basic Cable Company B over Basic Cable Company A
Answer:
Basic Cable Company A= 30x + 75
Basic Cable Company B= 40x
After 7.5 months, it's more economical to go with Company A. Before 7.5 months, Company B is cheaper
Step-by-step explanation:
find the value of the unknown.
Answer:
86.5
[tex]14 + 8 + 12.5 = 34.5 \: \: 121 - 34.5 = 86.5[/tex]
An isosceles triangle has been constructed so that its height is half its base. Find the dimensions of the
triangle if the area is 64 m².
Answer: 4 8×8= 64 half the base which is 8 =4
Step-by-step explanation:
Answer:
height = 8 m
base = 16 m
Step-by-step explanation:
Let base = 2x m
So, height = half its base = [tex]\frac{2x}{2} = x \ m[/tex]
Area = 64 m²
[tex]\frac{1}{2}* \ base* \ height = 64\\\\\\\frac{1}{2}* 2x * x = 64[/tex]
x * x = 64
x * x = 8 * 8
x = 8 m
Base = 2x = 2*8 = 16 m
Help urgent In a class of 35 students 15 of them have cats 16 have dogs 3 hangs none how many probability does have both
Answer:
9/25
Step-by-step explanation:
Number of student who has cat , dog = 25 - 3 = 22
Number of students who has cat and dogs = (15 + 16) - 22
= 31 - 22 = 9
Number of students who has only cats = 15 - 9 = 6
Number of students who has only dogs = 16 - 9 = 7
P(Cat & dog) = 9/25
solve the formula for a
(q&c in picture)
Answer:
C
Step-by-step explanation:
Subtract Vot from the given equation
s - Vo*t = 1/2 a t^2 Multiply by 2
2(s - Vo*t) = at^2 Divide by t^2
2(s - Vo*t) / t^2 = a
Looks like C is the answer.
I don’t know this one, Please help ASAP
Answer: 52
Step-by-step explanation:
You can see that it is a right angle and 90-38=52. Then because they are vertical angles they equal each other meaning that IGJ is 52 degrees
Math question for grade 8
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Use the point-slope equation to identify the slope and the coordinates of a point
on the line y – 4 = (x – 1).
The slope of the line is
.
A point on the line is
Answer:
slope=1
point=(1,4)
Step-by-step explanation:
y-y1=(x-x1)m
From comparison
m=1
y1=4
x1=1
Answer:
The slope of the line is m = 1/2
A point on the line is (1,4)
Step-by-step explanation:
Got it right on Edge :)
Find the measure of the indicated angle to the nearest degree.
12
22
Answer:
sadly, there is no indicated angle. you have to attach a photo/screenshot of your problem for anyone to help. There is limited information given from your question.
Step-by-step explanation:
Rohann recently finished some renovations to his house. 20 square meters of carpeting cost $875 while 17 square meters of hardwood flooring cost $750. Which flooring is more expensive per square meter?
Answer: Hardwood flooring
Step-by-step explanation:
Given
Rohann renovation of Carpentering cost $875 for [tex]20\ m^2[/tex]
For hardwood flooring [tex]17\ m^2[/tex] cost $750
So, cost per square meter for different floors are
[tex]\Rightarrow \text{Carpentering}=\dfrac{875}{20}\\\\\Rightarrow \text{Carpentering}=\$43.75/m^2[/tex]
[tex]\Rightarrow \text{Hardwood}=\dfrac{750}{17}\\\\\Rightarrow \text{Hardwood}=\$44.11/m^2[/tex]
Thus, the cost of the Hardwood flooring is more expensive.
Please help me solve this question!!
Answer:
Step-by-step explanation:
Can someone help me with this math homework please!
===============================================================
Explanation:
Unfortunately your teacher is a bit vague here, but I'm assuming that the roots listed in the table are the only roots (and there aren't any other roots possible). If other roots were possible, then we'd have infinitely many possible answers and it would greatly muddy up the problem.
So we'll just stick to the basic assumption that the only roots are: -2, 0, and 2.
With that key assumption in mind, let's look at the answer choices to see which are true and which are false.
A) False. This is because we see that f(x) = -15 when x = -3. Note how x = -3 is in the interval [tex](-\infty, 3)[/tex]. In other words, this is a counter example showing that f(x) > 0 is not the case when x is between -infinity and 3.B) True. Over the interval [tex]0 \le x \le 2[/tex], we have f(x) either equal to 0 or a negative value. For the interval 0 < x < 2, we would have f(x) < 0.C) False. The table shows that f(0) = 0 which means we aren't making f(x) < 0 to be the case. D) True. The table shows that if -2 < x < 0, then f(x) is positive. An example of this is f(-1) = 3 which is positive. The f(x) values in this region are above the x axis. E) True. We have f(x) either equal to 0 or something larger when [tex]x \ge 2[/tex] which translates over to the interval notation [tex][2, \infty)[/tex]From that list above, we see that choices B, D and E are true.
Determine which theorm should be used, and find CA
Answer:
perpendicular bisector
Step-by-step explanation:
The person who can prove this all question will get the brailiest award
Answer:
This only has answer 1. these proofs are really long, so hard to fit them all in one answer.
Step-by-step explanation:
[tex]cos^2A+sin^2A=1\\[/tex] : Will be used very often so just remember this equality.
1. Multiply [tex](1+SinA)*\frac{CosA}{1-SinA} +\frac{CosA}{1+SinA} *(1-SinA)=2secA\\[/tex]
When we factor out the terms, we are left with:
[tex]\frac{CosA}{1-Sin^2A} +\frac{CosA}{1-Sin^2A} =2secA[/tex]We then use the rule above and convert it to [tex]cos^2A[/tex]:
[tex]\frac{1}{CosA} +\frac{1}{CosA} =2secA[/tex][tex]2secA=2secA[/tex]Answer:
Step-by-step explanation:
Attached
What are angles a,b and c
Answer:
A=38°
B=84°
C=68will use the property of an isosceles triangle to find the answer
choose the equation that satisfies the data in the table
[tex]\boxed{\large{\bold{\textbf{\textsf{{\color{blue}{Answer}}}}}}:)}[/tex]
See this attachment
option D is correctSolve for - 1/2 x < -12. Show your work.
Answer:
x > 24
Step-by-step explanation:
- 1/2 x < -12
Multiply each side by -2, remembering to flip the inequality
-2 * -1/2x > -12 *-2
x > 24
Answer:
[tex]x > 24[/tex]
Step-by-step explanation:
[tex] - \frac{1}{2} x < - 12 \\ x < - 12 \times 2 \\ - x < - 24 \\ x > 24[/tex]
The population of a town is 157,220 and is decreasing at a rate of 0.8% each year. Predict the population in 5 years (round to the nearest whole number).
Answer:
151,031
Step-by-step explanation:
If the population of a town is decreasing at 0.8% each year, the new population of the town will be [tex]100\%-0.8\%=99.2\%[/tex] of what it was last year. To find 99.2% of something, multiply it by 0.992. Therefore, we can write the following equation:
[tex]f(x)=157,220\cdot 0.992^x[/tex], where [tex]f(x)[/tex] is the population of the town [tex]x[/tex] years after the town had a population of 157,220.
Substitute [tex]x=5[/tex] into this equation to get the projected population after 5 years:
[tex]f(5)=157,220\cdot 0.992^5, \\f(5)=151031.019048,\\f(5)\approx \boxed{151,031}[/tex]
Therefore, in 5 years, the population should be 151,031.
SOMEONE HELP ME PLEASE
Answer:
I D K u tell me
Step-by-step explanation:
this is what u answersed another he/she question repeating u
Answer:
SHEEESSHHHHHHHHHH
Step-by-step explanation: life goes around and around
Write a two colomn proof given cd||ab prove EAB=ECD thanksssss
Answer:
See below.
Step-by-step explanation:
Statements Reasons
1. CD || AB 1. Given
2. <A is congr. to <ECD 2. Corresponding <s of || lines
3. <B is congr. to <EDC 3. Corresponding <s of || lines
4. Tr. EAB ~ Tr. ECD 4. AA Similarity
Answer:
Step-by-step explanation:
Statement Reason
AB // CD Given
∠BAE ≅ ∠DCE Corresponding angles are congruent
∠ABE ≅ ∠CDE Corresponding angles are congruent
ΔEAB ~ ΔECD A A Similarity
