Answer:
Yes, the sides form a right triangle.
Step-by-step explanation:
Pythagorean Theorem:
a² + b² = c²
↓
20² + 21² = 29²
║a² = 20² = 400
║b² = 21² = 441
║c² = 29² = 841
↓
400 + 441 = 841
║This equation is true.
↓
Yes, the sides form a right triangle.
someone help me with this I would really appreciate it !
Answer:
V = 126 [tex]mi^{3}[/tex]
Step-by-step explanation:
Volume of a pyramid is V = [tex]\frac{lwh}{3}[/tex]
l = length
w = width
h = height
width is 6 mi
length is 7 mi
height is 9 mi
V = [tex]\frac{6*7*9}{3}[/tex]
V = 126 [tex]mi^{3}[/tex]
For concreatting a tower cement, sand, stones are in the ratio 1:2:4 For 144kg sand.. What amount of cement is required?
Answer:
72 kg
Step-by-step explanation:
For concreatting a tower cement, sand, stones are in the ratio 1:2:4 For 144kg sand.. What amount of cement is required?
We are given the ratio
cement: sand:stones
= 1:2:4
The sum of proportion =
1 + 2 + 4 = 7
We are given the kg of sand = 144kg
Step 1
We find the total kg of cement, sand and stones = x
Using the proportion of sand,
2/7 of x = 144kg
2/7 × x = 144kg
2x/7 = 144kg
Cross Multiply
2x = 7 × 144kg
x = 7 × 144kg/2
x = 504kg
Therefore the total kg of cement, sand and stone = 504kg
Step 2
The amount of cement required is calculated as:
1/7 × 504 kg = 72 kg
Therefore, 72kg of cement is required.
i neeeeee helpppp asappppppp
Answer:
y = 7x + 41
Step-by-step explanation:
the y-intercept appears to be about 40 and the only option with this intercept is the first one
If the number of bacteria in a colony doubles every 27 hours and there is currently a population of 2,000 bacteria, what will the population be 54 hours from now?
Please answer I really need help due at 11:50
Answer:
|-3| = 3
|3| = 3
Step-by-step explanation:
debbie owes her brother $25 if she plans to pay him back an equal amount from her savings each day for five day describe the change in her savings each day
Answer:
For 5 days, Debbie will lose 5 dollars from her savings.
Step-by-step explanation:
Create an equivalent ratio to 30:40 by dividing both sides by 10. What is the equivalent ratio?
Answer:
3:4
Step-by-step explanation:
Find the radius of a sphere with a volume of 180 cubic feet. Round your answer to the nearest tenth.
Answer:
3.50ft
Step-by-step explanation:
Given data
Volume= 180ft^3
The expression for the volume of a sphere is given as
Volume=4/3πr^3
substitute
180=4/3*3.142*r^3
180=12.568/3*r^3
180=4.189*r^3
r^3= 180/4.189
r^3= 42.969
cube root both sides
r= ∛ 42.969
r= 3.50ft
Hence the radius is 3.50ft
ILL BRAINLIEST YOU IF YOU GET IT RIGHT PLEASE HELP
Answer:
Angle 1= 147
Angle 2= 33
Step-by-step explanation:
(4a+7) + (a-2) = 180
4a+7+a-2=180
5a+5=180
5a=175
a= 35
plug in 35 for A to find measurements
4(35) +7 = 147
(35) -2= 33
8X=35
WHAT IS THE VALUE FOR X THAT MAKES THE EQUATION TRUE?
Answer:
x= 35/8 or 4 3/8
Step-by-step explanation:
8X=35
/8 /8
x= 35/8
x= 4 3/8
Help! This is due today and I'm stuck on the last problem.
Brainiest for best answer.
NO LINKS! If you put a link, I will report you.
Find the area of the shaded region rounded to the nearest tenth.
Answer:
Step-by-step explanation:
Square
519450.2
Holes
Semi-circle: 1/2*pi*r^2
diameter = 700/2 = 350 =radius
1/2*pi*350 = 175*pi
Triangle
1/2 b*h
1/2 200*400
100*400
40000
Take out the semi circle and triangle
560000-40000-175*pi
520000-175*pi = 519450.2
Find the next three terms in the pattern: 7, 3,-1, -5, -9.... Then, describe the pattem.
Answer:
Next three terms are: - 13, - 17, - 21
Step-by-step explanation:
Evety time it decreases by 4.
Answer:
-13, -17, -21
Step-by-step explanation: keep subtracting 4
What is true about the slopes of lines that are perpendicular?
A They have opposite signs
B They are reciprocals of each other
C They have opposites signs and are reciprocals of each other
D They are exactly the same
1) A pizza is cut into 4 pieces. Each piece is then cut into 2 pieces. If
each kid gets 4 pieces, how many pizzas are needed for 60 kids?
Answer: 2 pizzas
Step-by-step explanation: 4 times 4 times 2 is 32. 1/32 divided into 60 to get 2 pizzas
What is the area of this kite? A) 20 square meters
B) 36 square meters
C)40 square meters
D) 80 square meters
Answer:
D
Step-by-step explanation:
Answer:
C. 40 square meters
Step-by-step explanation:
The area for a kite can be figure out with this formula. pq/2. Substitute p for 8 & q for 10.
A = pq/2 {Substitutions made}
A = (8 * 10)/2 {Multiply 8 by 10 to get 80.}
A = 80/2 {Divide 80 by 2 to get 40.}
A = 40 square meters
The area of this kite of 40 square meters, which is C.
12 points
1. FIND THE SLOPE
A. 2
6
4
B.
-2
2
-6
1-2
-4
X
0
D.
Ο Α
Answer:
i think it's 1, but I don't know if I'm right
Answer:
1
Step-by-step explanation:
2/2 = 1
Brainliest and 15 points will mark brainliest if you have a correct response to my question and people that give irresponsible answers get their account reported.
Answer:
Part A: One.
Part B: (3, 5)
Step-by-step explanation:
Part A: A solution to a pair of equations is generally where the two functions intersect. As we can see, a graph is provided, so things are facilitated. We can see that they only intersect once, which means only one answer.
Part B: The solution, which as we have learned is where the two lines intersect, is (3, 5), as that is, again, the point of intersection.
Write the appropriate term in each box to create an expression
equivalent to 7x + 2x + 6y
3x(2y+3y)
= 3x × (2y+3y)
= 3x × 5y
= 15xy
So your answer is:-
3x × (2y+3y)
may this helps you
bye
Match the following three scenarios. Are the equations Always True, Never True, or Sometimes True?
An airplane altitude in feet during its descend can be found using the function f(x)=-200x+20,000. After new government regulations become law the descent is now modeled by the function g(x)=-200x+20,500. Which statement describes the change?
Answer:
The airplane starts its descent from an altitude 500 feet higher.
Step-by-step explanation:
Given that:
F(x) = - 200x+20,000
g(x) = -200x+20,500
The functions are written in slope intercept format :
With a negative slope, the intercept gives the point which the rate of change begins in the vertical axis :
The slope is -200 ; which means that the descent rate of the airplane is 200
The intercept value however changes from 20,000 in f(x) to 20500 in g(x). This means that the height at which descent starts is now at a height of 20500 which is (20500 - 20000) = 500 miles higher than before.
Solve for x.
2x2 + x = 10
Answer:
x = 2, x = -5/2
Step-by-step explanation:
2x² + x - 10 = 0
(2x + 5)(x - 2) = 0
2x + 5 = 0
2x = -5
x = -5/2
x - 2 = 0
x = 2
Helppp this is a Algebra question
find x. please explain
Answer:
5
Step-by-step explanation:
We can figure out the triangle is 30-60-90. So we use the pythagorean theorem. 13^2 - 12^2 = x^2. 25 = x^2. square root of 25 is 5.
The number (√5+2)/(√5-2)
is:
(a) a rational number
(b) an irrational number
(c) an integer
(d) a natural number
Answer:
b: irrational
Step-by-step explanation:
(√5+2)
-------------- is given.
(√5 - 2)
If we multiply numerator and denominator by (√5+2), we succeed in removing the square root symbol from the denominator:
(√5+2)(√5+2)
---------------------
(√5+2)(√5- 2)
and the denominator becomes 5 - 2, or 3. The denominator is now rational, but the numerator still involves the square root symbol, so overall the given number is irrational.
if 2f(x)-3f(1/x)=x^2 determine f(2)
HELP PLEASEEEEEEEEEEEEEEEEEEEEE
Answer:
22%
Step-by-step explanation:
please help fast ill give brainliest
Which of the following are equivalent expressions? Select all that apply.
a. g3 – 23 = g × g × g – 23
b. 64 + 2f = 64 + f + f
c. 5p3 = 5 × 3 × p
d. 2d3 + 8 = 2 × d × d × d + 8
e. 37 + 4n = 37 + 4 + n
Answer:
sorry for the late answer but it's a, b, and d. hope it helps :)
Casho has a bag that contains pineapple chews, lemon chews, and lime chews. She performs an experiment. Casho randomly removes a chew from the bag, records the result, and returns the chew to the bag. Casho performs the experiment 54 times. The results are shown below:
A pineapple chew was selected 9 times.
A lemon chew was selected 15 times.
A lime chew was selected 30 times.
Based on these results, express the probability that the next chew Casho removes from the bag will be pineapple chew as a percent to the nearest whole number.
Answer:
17% the next chew Casho pulls out is pineapple
Step-by-step explanation:
pineapple chew 9/54
lemon chew 15/54
lime chew 30/54
9/54 = 0.1666666... make this a percent and you get 17% of the time Casho will pull out a pineapple chew.
Answer:
...................................................................
Step-by-step explanation:
The price of 7-minute phone call is $.105 What is the price of 18 -minute phone call?
The price of 18-minute phone call is $
Answer:
$.27
Step-by-step explanation:
.105/7*18
PLZ HELP!!! I’ve retaken this like 4 times and I just don’t get it I need the answer plz
Answer:
a) 65 degrees
b) 60 degrees
Hope that helps! Good luck! :)
-Aphrodite
Step-by-step explanation:
