Answer:
(x+10)(x-10)
Step-by-step explanation:
The factor for x+10 is x+10 itself.
(x+10) = x+10
(x+10) occurs 1 time.
The factor for x-10 is x-10 itself.
(x-10) = x-10
(x+10) occurs 1 time.
The LCM of x+10, x-10 is the result of multiplying all factors the greatest number of times they occur in either term.
(x+10)(x-10)
How many sets of one eighths are in 3/4
Answer:
6
Divide the fractions.
3 / 1 = 3
4 / 8 = 2
Use the numerator as a multiplicand.
2 × 3 = 6
Use the drawing tools to form the correct answer on the graph. Plot function f on the graph. f(x)= 3, -9
The equation of the function f with solution 3, -9 is x²+6x-27 and the graph of this equation with the use of drawing tools is attached below.
What is the definition of a Function?A function assigns the value of each element of one set to the other specific element of another set.
A function has to be plot which has the value of f(x) as 3 and -9. Here, 3 and -9 are the solution of the function. Thus,
x=3
x-3=0
The second solution is,
x=-9
x+9=0
Multiply both factor for the function as,
f(x)=(x-3)(x+9)
f(x)=x²+9x-3x-27
f(x)=x²+6x-27
This is the required function. The graph of this function is attached below.
Thus, the equation of the function f with solution 3, -9 is x²+6x-27 and the graph of this equation with the use of drawing tools is attached below.
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And environmental group would like a representative sample of its members to complete a survey. Which method gives the most representative sample?
a. Survey all the people who attended the month club meeting.
b. Survey every third person from the list of group members.
c. Survey the first five people who joined the club.
d. Survey every other person that went on the weekend nature walk.
Answer:
D.
Step-by-step explanation:
When you survey every 3rd person you will use that as a good sample for the survey. Hope this helps!
a line passing through the point (−2, −3) with a slope of −6.
y + 3 = −6(x + 2) A
y + 2 = 6(x + 3) B
y − 3 = −6(x − 2) C
y − 2 = 6(x − 3) D
Answer:
A
Step-by-step explanation:
y + 3 = -6(x + 2)
y + 3 = -6x - 12
y + 3 = -6x - 12
y = -6x - 15
3tan² 45° - sin² 60 - cot 30 + sec² 45°
Answer:
[tex]4.25-\sqrt{3}.[/tex]
Step-by-step explanation:
1) tan45=1; sin60=√3/2; cot30=√3; sec45=√2, then
2) 3-0.75-√3+2=4.25-√3 (it is ≈2.5179492).
Use unit price to decide which pizza deal is the better buy. Explain.
Deal A: 30 slices for $75
OR
Deal B: 18 slices for $48
please explain your answer!!
Answer:
1. 0.4
2. 0.375
Step-by-step explanation:
All you gotta do is find how much does it cost for each slice for example 30/75=0.4 and decide which one is better
Consider the questions below:
Are the line parallel or perpendicular?
[tex]\Large\textsc{Answer\::}[/tex]
ParallelPerpendicular[tex]\Large\textsc{\textbf{Calculations\::}}[/tex]
First , notice that the equation of the second line , 6x=3y+5 , is not written in the same form as y=2x , so determining the slope is hard .
To determine the slope , we need to convert the first equation into slope intercept form .
Subtract 6x on both sides :
0 = 3y+5-6x
Now , subtract 3y on both sides :
-3y=-6x+5
Divide by -3 on both sides :
y=-6/-3x+5/-3
Which simplifies to :
y=2x-5/3 (remember , a negative divided by a negative results in a positive)
Put both equations together :
y=2x and y=2x-5/3
Notice that the slopes are the same . This indicates that the lines are parallel .
Now let's focus on the second maths problem :
Consider the equations below .
x=-4 and y=-2
Are the lines parallel or perpendicular?
The slope of the first line is undefined , and the slope of the second line is zero .
Lines with undefined slopes are vertical , and lines with slopes of zero are horizontal .
Here's something you may have recalled from your Geometry class :
Is a vertical line parallel or perpendicular to a horizontal line ?
The ans is : perpendicular .
Henceforth , the lines x = -4 and y = -2 are perpendicular to each other .[tex]\footnotesize{\texttt{hope helpful~}[/tex]
Jo is pouring a driveway and he mixes cement and water in the correct ratio. X represents the cement and y represents the water. The graph includes (54,120) (108, 240) (162, 360) (216, 480). He says (63, 140) is included in the relationship of the graph. Is he correct?
Answer:
Yes.
Step-by-step explanation:
y/x = 2.22..... for all the 4 points given.
The graph is a straight line with slope 2.22....
140/63 = 2.2222... also so this is included in the realtionship
complete this statement: A plolygon with all sides the same length is said to be
Answer:
it is said to be a regular polygon.
Step-by-step explanation:
A regular polygon is a polygon that has all angles of the same measure and all sides of the same length.
Whoever helps me get the right answer gets 20 points
A triangle has side lengths 3.4 cm, 4 cm, and 5.2 cm. The angle measures are 40°, 50°, and 90°.
What type of triangle is this triangle?
acute isosceles
acute scalene
right isosceles
right scalene
Answer:
right scalene
What is the absolute value of negative 1/2
Answer:
The absolute value of negative 1/2 is 1/2
Step-by-step explanation:
The absolute value of a number is the positive form of the number
Find -5B.
Please help
Answer:
[tex]-5B = \begin{bmatrix}-15&10\\ 20&40\end{bmatrix}[/tex]
Step-by-step explanation:
[tex]B=\begin{bmatrix}3&-2\\ -4&-8\end{bmatrix}[/tex]
[tex]\Longrightarrow -5B = -5 \times\begin{bmatrix}3&-2\\ -4&-8\end{bmatrix}[/tex]
[tex]\Longrightarrow -5B = \begin{bmatrix}-5 \times3&-5 \times-2\\ -5 \times-4&-5 \times-8\end{bmatrix}[/tex]
[tex]\Longrightarrow -5B = \begin{bmatrix}-15&10\\ 20&40\end{bmatrix}[/tex]
A prism is completely filled with 540 cubes that have edge length of 13 cm. What is the volume of the prism? Enter your answer in the box.
Answer:
vp=1186380cm^3
Step-by-step explanation:
Number of cubes =540length of one edge=13cm[tex]volume \: of \: a \: cube = {l}^{3} \\ v = {(13cm)}^{3} \\ = {2197cm}^{3} \\ [/tex][tex]volume \: of \: prism \: = volume \: of \: cube \: \times \: nuber \: of \: cubes \\ volume \: of \: prism = ( {2197cm}^{3} )(540) \\ = 1186380 {cm}^{3} = 1.1864 {m}^{3} [/tex]Answer:
Step-by-step explanation: hi it’
5th grade pls help
Cy bought a laptop computer, a printer, and a router. Cy used a $35 coupon to make the purchase. He wrote (1,415.00 + 277.50 + 44.95) - 35 to show how he can calculate the final cost, not including sales tax. Write an expression that can be used to find the total price of the items he bought before sales tax and the coupon.
Answer:
1702.45
Step-by-step explanation:
your welcome
1737.45 coupon not included
The cost of downloading a movie from a website is $4.99. Which equation can be used to find c, the cost in dollars of downloading n movies? A. c = 4.99 +n = B. n = 4.990 C. n = 4.99 +c D. c = = 4.99n
Answer:- The answer is letter B, c=1.75n
Step-by-step explanation: Hope this helps.
A rectangular prism and its net are shown below.
(All lengths are in yards.)
If the dimension of the rectangular prism will be 11 by 8 by 4. Then the volume of the rectangular prism will be 352 cubic yards.
What is a rectangular prism?A rectangular prism is a closed solid that has two parallel rectangular bases connected by a rectangle surface.
A rectangular prism and its net are shown below.
Then the volume of the rectangular prism will be
Volume = LWH
where
Width (W) = 8 yd
Length (L) = 11 yd
Height (H) = 4 yd
Then the volume will be
Volume = 11 × 8 × 4
Volume = 352 yd³
Then the volume of the rectangular prism will be 352 cubic yards.
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PLEASE HELP
Describe how the variable h and the variable k of the general formula for a cube root function effects the graph. The general formula is y=a^3sqrt x-h+k
Answer: h = left or right, k = up or down
Step-by-step explanation:
h determines if the function is shifted left or right and k determines if the graph is shifted up or down
FIND THE DOMAIN AND RANGE
Answer:
B
Step-by-step explanation:
if lin has already run 19.6 miles of the marathon how many miles does she have left
Answer:
6.6 miles she has to runStep-by-step explanation:
the marathon actual race distance is 26.2 now that Lin has already ran 19.6 miles so now we should subtract this two decimal numbers so that were get 6.6
A dinner plate has a circumference of 100.48 cm. What is the area of the dinner plate? Use 7 = 3.14.
Circumference = 2914 Area Пr2
A. 1,607,68 cm2
B. 200.96 cm?
C. 803.84 cm?
D. 50.24 cm
Answer:
803.84, or C.
Step-by-step explanation:
If we know the circumference then we can use that to find the radius!
-
(π =pi)
Area of a circle formula: π · r^2
-
Let us plug in the circumference into the formula (not the area formula, the circumference one!)
c=2πr
100.48=2πr - 2*3.14 =6.28
100.48=6.28r
divide both sides by 6.28!
r= 16
Now, we plug that in the area formula.
π · r^2
3.14 * 16^2
3.14 * 256 =
803.84
There are 10 girls in an athletics club.
e ratio of girls to boys is 5:3.
w many boys are there?
Answer:
6Step-by-step explanation:
There are 10 girls in an athletics club.
e ratio of girls to boys is 5:3.
w many boys are there?
we can solve with an equation
10 : x = 5 : 3
x = 10 * 3 : 5
x = 30 : 5
x = 6
---------------
the amount of water in a bottle is reduced by 85% to 120 millimeters. how much water was originally in the bottle?
A percentage is a way to describe a part of a whole. The amount of water in the bottle originally is 800 mm.
What are Percentages?A percentage is a way to describe a part of a whole. such as the fraction ¼ can be described as 0.25 which is equal to 25%.
To convert a fraction to a percentage, convert the fraction to decimal form and then multiply by 100 with the '%' symbol.
Let the water in the bottle at the very initial be x.
Given that after reduction the amount of water in the bottle is 120 millimetres, also, the water is reduced by 85%, therefore, the amount of water that will be in the bottle is 15% of the original.
Water in the bottle = 15% of x
120 mm = 0.15 × x
x = 800 mm
Hence, the amount of water in the bottle originally is 800 mm.
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Can any math experts please help me with this thank you so much
[tex]1.~\boxed{\sf0.55555555555}\boxed[/tex]
[tex]2.~\boxed{\sf 0.54545454545}\boxed[/tex]
Pls help me!!!!!!!!!!’
Answer:
m<6 = 119°
Step-by-step explanation:
Two lines are parallel with each along a line.
m<4 and m<6 are supplementary angles which both angles add up to 180°.
m<4 + m<6 = 180°
61° + m<6 = 180°
m<6 = 180° - 61°
m<6 = 119°
Answer:
Step-by-step explanation:
m<6 + 61 = 180
m<6 = 139
varies directly with the number of
The doliar amount d that Megan earns
hours h that she works. In her last paycheck, she earned $148.50 working
18 hours.
If her next paycheck is $90.75, how many hours did she work?
Step-by-step explanation:
Let p and h represent pay and hours worked respectively,
p = kh
k = p/h = 148.5/18 = 8.25
p= 8.25h
90.75 = 8.25h
h = 11 hours.
Hope it helps! :)
If a₁ = 2 and an = an-1 +5 then find the value of a5. for recursive sequence
Answer:
[tex]a_{5} = 22[/tex].
Step-by-step explanation:
In this recursive sequence, the value of the first term [tex]a_{1} = 2[/tex] is stated explicitly. The value of every other term of this sequence is given as an expression of the previous term.
For example, the value of the term [tex]a_{2}[/tex] ([tex]n = 2[/tex]) is given in terms of the value of [tex]a_{1}[/tex]:
[tex]\begin{aligned}a_{2} &= a_{(2 - 1)} + 5 \\ &= a_{1} + 5\end{aligned}[/tex].
Likewise, the value of [tex]a_{3}[/tex] ([tex]n = 3[/tex]) would be:
[tex]\begin{aligned}a_{3} &= a_{(3 - 1)} + 5 \\ &= a_{2} + 5 \\ &= (a_{(2-1)}+5) + 5 \\ &= (a_{1} + 5) + 5 \\ &= a_{1} + 2 \times 5 \\ &= a_{1} + (3 - 1) \times 5\end{aligned}[/tex].
In general, the value of [tex]a_{n}[/tex] (for integer [tex]n \ge 1[/tex]) would be:
[tex]\begin{aligned} a_{n} &= a_{1} + (n - 1) \times 5 \\ &= 2 + (n - 1) \times 5\end{aligned}[/tex].
Therefore, the value of [tex]a_{5}[/tex] ([tex]n = 5[/tex]) would be:
[tex]\begin{aligned}a_{5} &= a_{1} + (5 - 1) \times 5 \\ &= 2 + (5 - 1) \times 5 \\ &= 22\end{aligned}[/tex].
Which of the following package deals is a better buy according to unit price?
$5.73 for 3 cans
$11.44 for 8 cans
$13.55 for 5 cans
$14.28 for 6 cans
Javier loves flying kites. He flies his kite for 1 hour on Monday, 2 hours on Tuesday, 4 hours on Wednesday, and 3 hours on Thursday. How many more hours did Javier fly his kite on Wednesday and Thursday than Monday and Tuesday?
Answer:
4 more hours
Step-by-step explanation:
wednesday+thursday=7
monday+tuesday=3
7-3=4
Determine the value of x.
is it 20?
Answer:
X = 20
Step-by-step explanation:
The two angles are vertical.
62 = (2 + 3x)
60 = 3x
60/3 =
20
You were correct
a is 25% of b
b is 30% of c.
Write the ratio a:b:c
Give your ratio in its simplest form.
Answer:
40a : 10b : 3c
Step-by-step explanation:
We can write this information more mathematically by saying:
[tex]a = \frac{1}{4} b[/tex]
[tex]b= \frac{3}{10} c[/tex]
This can be written as ratios as well by making them all integers so:
4a : b
10b : 3c
By making the b's in both equations the same, we can link all the ratios together so:
40a : 10b
10b : 3c
So,
40a : 10b : 3c
