Answer:
8x + 4
Step-by-step explanation:
4(2x+1)
4*2x + 4*1
8x + 4
Refer to the isosceles trapezoid shown. Find x
Answer:
Hey, read below!! :)
Step-by-step explanation:
Both sides are the same length. X = 70
Do klasy zakupiono n stolików i dwa razy więcej krzeseł.Ile mebli zakupiono?Trzy krzesła były uszkodzone i zwrucono je do producenta.
Answer:
3n meble
3n - 3 meble pozostały
Step-by-step explanation:
n stoły
2n - 3 krzesła
n + 2n = 3n
Find the area of a circle with diameter 8 in.
Use the value 3.14 for n, and do not round your answer.
Be sure to include the correct unit in your answer.
Answer:
Step-by-step explanation:
50.27 should be the area of a circle that has a radius of 4 in.
A triangular pyramid has lateral faces with bases of 8 meters and heights of 10
meters. The area of the base of the pyramid is 27.7 square meters.
What is the surface area of the pyramid?
The surface area of the pyramid is
square meters.
Answer:
147.7 m²
Step-by-step explanation:
Area of the triangular faces = 1/2 × base × height
A triangular pyramid has lateral faces with bases of 8 meters and heights of 10 meters.
Hence: 1/2 × 8 × 10 = 40 m²
A triangle has 3 faces, hence, area of the 3 faces = 3 × 40 m²
= 120m²
The area of the base of the pyramid is 27.7 square meters.
Hence, the surface area of the pyramid is calculated as:
Area of the 3 lateral faces of the pyramid + Base area
= 120m² + 27.7 m²
= 147.7 m²
The surface area of the pyramid is 147.7 square meters.
I have no clue and Would like some assistance
Which equation matches the graph shown ?
A. Y=8x^2 +2x -5
B. Y= 8x^2 +2x +5
C. Y=2x^2 + 8x +5
D. Y=2x^2 + 8x -5
Answer:
D
Step-by-step explanation:
Simply put 0 in the equations and see if it's true then put -2 instead of x and see if it matches. this is the easiest way.
8,706, 2812
What is the value of 7
Answer:
7 million is the answer to this question
A sloth walks 1/8 mile in 1/4 of an hour. Enter the number of miles the sloth will walk in an hour
Answer:
1/2 mile.
Step-by-step explanation:
There 4 1/4 hours in 1 hour so
the answer is 4 * 1/8
= 4/8
= 1/2 mile.
Help! Solve for the value of x.
Answer:
x=6 degrees
Step-by-step explanation:
I know that 31+(10x-1)=90. Then I have to subtract 31 from 90 to get 10x -1.
That's 59. I solve for x in the equation 59=10x-1.
That is the same thing as 60=10x, which is also the same as 6=x.
Please someone help
Answer:
314.2
Step-by-step explanation:
Circumference of a circle is π[tex]r{2}[/tex]
so 3.142 × [tex]10{2}[/tex]=314.2
Answer:
circumference of the circle=2πr
=2×3.142×10
=62.84 cm
Pam needs to spend less than $40 on her school supplies. She spends $12 on a
new calculator and wants to buy 7 binders. How much can Pam spend on each
binder to not spend less than $40 total?
Answer:
28
Step-by-step explanation:
Total amount of money she has=$40
Spends=12
40-12=28
She has $28 dollars left to spend on her binders.
Answer:
28
Step-by-step explanation:
you use your brain
Plot the inequality x < 0
Step-by-step explanation:
This is saying " Every number possible thats less than, but not 0" so you show that
20 points.
Find the area of a right triangle whose hypotenuse is 20 units long and the altitude drawn from the Right angle divides the hypotenuse into 5 units and 15 units.
Step-by-step explanation:
the height of the triangle = √(5×15)= √75
=5√3 units
the base of triangle= 20 units
so, the area = ½×20×5√3= 50√3 units
or 86.60 units
Tell whether 208 and 289 form a proportion
Answer:
You can tell if two fractions are proportional by using cross multiplication. Only equivalent fractions are proportional. To do this, multiply the denominator, the bottom number in the fraction, of the first fraction with the numerator, the top number in the fraction.
Step-by-step explanation:
Please help :) worth more than 10 points :) Find the area of the triangle.
6 m
7 m
The area of the triangle is
(Type a whole number.)
Thank you so so so so much :) your really helping out a fellow student
13 m ...?.........;;;;;;;;;
How do you write 4,9000 in scientific notation?
Answer:
4.9 x 10^4
Step-by-step explanation:
[tex]4.9[/tex] × [tex]10^{4}[/tex]
please help ill give brainlist!
Answer:
[tex]y = 12 \tan(30 \degree ) \\ y = 6.92[/tex]
[tex]x = \frac{12}{ \cos(30 \degree) } \\ x = 13.8[/tex]
[tex] \small{ \star{ \underline{ \blue{becker}}}}[/tex]
What is the principal square root of 36?
A. 6
B. 7
C. 8
D. 9
Answer:
A. 6
Step-by-step explanation:
square root is the number that when multplied by itself will give you the specified amount.
6 x 6 = 36
What’s is an equation of the Parallel line to y= -x+1 and through (4,4)
Answer:
y = -x + 8
Step-by-step explanation:
Parallel lines are two lines that have the same plane and slope but never intersect.
A chemical company mixes pure water with their premium antifreeze solution to create an inexpensive antifreeze mixture. The premium antifreeze solution contains 70% pure antifreeze. The company wants to obtain 140 gallons of a mixture that contains 20% pure antifreeze. How many gallons of water and how many gallons of the premium antifreeze solution must be mixed
Answer:
40 gallons of premium antifreeze and 100 gallons of water should be used to obtain 140 gallons of a mixture that contains 20% pure antifreeze.
Step-by-step explanation:
Since a chemical company mixes pure water with their premium antifreeze solution to create an inexpensive antifreeze mixture, and the premium antifreeze solution contains 70% pure antifreeze, and the company wants to obtain 140 gallons of a mixture that contains 20% pure antifreeze, to To determine how many gallons of water and how many gallons of the premium antifreeze solution must be mixed, the following calculation must be performed:
50 x 0.7 + 50 x 0 = 35
40 x 0.7 + 60 x 0 = 28
30 x 0.7 + 70 x 0 = 21
29 x 0.7 + 71 x 0 = 20.3
28.57 x 0.7 + 71.43 x 0 = 20
140 x 0.2857 = 40
Therefore, 40 gallons of premium antifreeze and 100 gallons of water should be used to obtain 140 gallons of a mixture that contains 20% pure antifreeze.
Is it true or false?
Answer:
true, yes
Step-by-step explanation:
Answer:
I think it's true but I could be wrong
PLEASE HELP!!!!!!! NO LINKS I will report links
Answer:
Not sure but I think
Surface area = 46
Volume = 4 2/3
help pls :D
have a nice day^^
Answer:
I believe the answer is D.
Step-by-step explanation:
Hope this helps Have a great day :)
hghgh heres another, i'll upload two more questions so that way im not nagging anyone to help me out^^
A slightly more accurate value is 38.28 cm^2, when using pi = 3.14
=================================================
Explanation:
The vertical height of the rectangle is 4 cm, which forms the diameter of the semicircle. The diameter cuts in half to 4/2 = 2, which is the radius.
The area of a full circle with radius r = 2 cm is approximately pi*r^2 = 3.14*2^2 = 12.56 square cm.
Cut that in half to get (12.56)/2 = 6.28 square cm. This is the approximate area of the semicircle.
--------
The area of the rectangle is length*width = 6*4 = 24 square cm.
The triangle has its bottom portion of 4 cm (because 10-6 = 4) and its height is 4 cm, so we get the triangle area of base*height/2 = 4*4/2 = 8 square cm.
The last thing we do is add up all the results we got:
6.28 + 24 + 8 = 38.28
That rounds to 38 square cm when rounding to the nearest whole number.
Classify this triangle by its sides.
Answer:
Equilateral
Step-by-step explanation:
All angles are the same, so the sides are the same as well
Classifications:
Scalene = no sides and angles are the same to others
Equilateral = All sides and angles are congruent
Isosceles = 2 sides and 2 angles are congruent.
If my answer is incorrect, pls correct me!
If you like my answer and explanation, mark me as brainliest!
-Chetan K
Answer: equilateral
Step-by-step explanation:
An equilateral triangle is a triangle where all the sides are the same length.
Multiply. Write your answer in simplest form. 3/8 x 5/7
Answer:
3/8*5/7=15/56
A rabbit population doubles every 6 weeks. There are currently seven rabbits in a restricted area. If t represents the time, and weeks, and P(t) is the population of the rabbits, about how many rabbits with there be 126 days?
Answer:
56 rabbits
Step-by-step explanation:
Given that t represents the time, and weeks, and P(t) is the population of the rabbits and that the population doubles every 6 weeks.
In 126 days, there are
= 126/7
= 18 weeks
It means that the rabbit population will double
= 18/6 times
= 3 times
Since there are currently 7 rabbits at the end of 6 week,
P(6) = 7 * 2
= 14
At the end of 12 weeks
P(12) = 14 * 2 = 28
At the end of 18 weeks
P(18) = 28 * 2 = 56
Hence there will be 56 rabbits at the end of 126 days
QU | RT. Find TU.
Help plz...No links!! I will report!!
Answer:
34
Step-by-step explanation:
We solve the above question using Triangle Proportionality Theorem
This states that:
TU : TS = QR : RS
TU/TS = QR/RS
TU = ?
TS= 17
RS = 13
QR = 26
Hence,
TU/7 = 26/13
Cross Multiply
13 × TU = 17 × 26
TU = 17 × 26/13
TU = 17 × 2
TU = 34
Therefore, TU = 14
Give the following sequence for f(x) = 4x^2 - x , when x is -4, 1, 2
A. 68, 14, 3
B. 7, 14, 3
C. - 64, - 14, 3
D. 58, 14, 3
Answer:
A
Step-by-step explanation:
by putting the value of x
ans was A
If OK and GE are parallel, what must the length of GE be?
Answer:
let the length of GE be x,
[tex] \frac{9}{3} = \frac{x}{2} [/tex]
being similar triangle.
9×2=x×3
18 = 3x
x = 18/3
x = 6 cm