Answer:
11600kg
Step-by-step explanation:
Given parameters:
Density of aluminium = 2900kg/m³
Volume needed = 4m³
Unknown:
Mass of the aluminum needed = ?
Solution:
Density is the mass per unit volume of a substance.
Mathematically;
Density = [tex]\frac{mass}{volume}[/tex]
Mass = density x volume
Now, insert the parameters and solve;
Mass = 2900 x 4 = 11600kg
Explain why the sum of the angle measures in any triangle is 180
Answer:
Step-by-step explanation:
Because every triangle that can ever be made has three sides, you can open up the triangle so that it becomes a straight horizontal line. A horizontal line is also 180 degrees which is why this idea works with triangles.
The reason for the sum of the angles in any triangle is 180 is that when we open up the sides of a triangle we get a straight line where the angle of a straight line is 180 degrees.
What is a triangle?It is a two-dimensional figure which has three sides and the sum of the three angles has are equal to 180 degrees.
We have,
The sum of the angle measures in any triangle is 180.
We see that,
In a triangle, there are three sides and three angles.
If we open up the triangle, we see that the three sides of the triangle form a straight line.
The angle of a straight line is 180 degrees.
Thus,
The reason for the sum of the angles in any triangle is 180 is that when we open up the sides of a triangle we get a straight line where the angle of a straight line is 180 degrees.
Learn more about triangles here:
https://brainly.com/question/25950519
#SPJ2
convert to unlike fractions
what is two times 2+5 times 4
Answer:
56 hope this helps!
Step-by-step explanation:
Answer:
I think your answer is 24. It's vague how you are saying it.
(Listen to the person above my answer it's probably right.)
What is the slope of the line that contains the points (-1, 2) and (3, 3)?
0.3.1
O.c. - 1
O D.-4
Answer:
m =1/4Step-by-step explanation:
[tex]\mathrm{Slope}=\frac{y_2-y_1}{x_2-x_1}\\\\\left(x_1,\:y_1\right)=\left(-1,\:2\right),\:\\\left(x_2,\:y_2\right)=\left(3,\:3\right)\\\\m=\frac{3-2}{3-\left(-1\right)}\\\\m=\frac{3-2}{3+1}\\\\m=\frac{1}{4}\\\\[/tex]
HELP. NEED ANSWERS!!
Answer:
d i thin;kStep-by-step explanation:
nugget 2020nugget 2020
nugget 2020
nugget 2020
nugget 2020
nugget 2020
nugget 2020
nugget 2020
nugget 2020
nugget 2020
nugget 2020
nugget 2020
nugget 2020
nugget 2020
nugget 2020
nugget 2020
nugget 2020
nugget 2020
nugget 2020
nugget 2020
nugget 2020
nugget 2020
nugget 2020
nugget 2020
nugget 2020
nugget 2020
nugget 2020
nugget 2020
nugget 2020
nugget 2020
nugget 2020
nugget 2020
nugget 2020
nugget 2020
nugget 2020
Point A is the incenter of triangle DEF. What is the length of NA?
A. 2 units
B. 9 units
C. 11 units
D. 14 units
Answer: B
Step-by-step explanation: Got a 100 on the test
what is 86+56+329+435+999+485+32+54?
2476 would be the correct answer
Answer:
2476
Step-by-step explanation:
i think of a number add 3 to it and multiply the result by 7.
write the follwing algebraci\lly using the unknown numbera as x
Answer:
x+3(7)=the answer
21=x
Step-by-step explanation:
Evaluate 12 divided by (-3)(2) + 5. a) -13 b) 3 c) -3
Answer:
Step-by-step explanation:
12÷(-3)(2)+5= -3
-4(2)+5
-8+5
-3
please please help me
Answer:
A
Step-by-step explanation:
e.g 10×1 = 10
10 + 8 = 18
10 × 2 = 20
20 + 8 = 28
Answer:
I believe the answer is A
Step-by-step explanation:
slope for this equation is [tex]m = \frac{y2-y1}{x2-x1}[/tex]
so picking some coordinates (1,18) and (1.5,23)
= [tex]\frac{23-18}{1.5-1}[/tex]
= 10
slope is 10 which is closes to A
Use the graph to identify the slope and y-intercept. Can you help me identify them?.
Answer:
y intercept is (0,4) and slope is -2
Step-by-step explanation:
y intercept is (0,4) you can see where it intercepts.
The slope is rise/run so 4/-2 so -2
The water level in Ricky Lake changes at an average of -716 inch every 3 years. a. Based on the rate above, how much will the water level change after one year? Show your calculations and you can use the vertical number line to help you., using 0 as the original water level.
Answer:
The water level will change at a rate of - 2 7/18 inches per year
Step-by-step explanation:
From the question, we have a change of -7 1/6 inch every 3 years
We now want to calculate the value of the change every year
Mathematically, that will be;
- 7 1/6 divided by 3
= -43/6 divided by 3
= -43/18 = - 2 7/18 inch per year
PLEASE HELP ASAP!!!
Answer:
H and c
Step-by-step explanation:
Given f(x) = -4x2 +13x-2, what is the value of f(-1)?
Answer:
f(- 1) = - 19
Step-by-step explanation:
To evaluate f(- 1) substitute x = - 1 into f(x) , that is
f(- 1) = - 4(- 1)² + 13(- 1) - 2 = - 4(1) - 13 - 2 = - 4 - 13 - 2 = - 19
What is the value of x ?
Answer:
61°
Step-by-step explanation:
For parellel lines cut by a transversal corresponding angles are equal.
Which pair of angles are alternate exterior angles?
Answer:
B) ∠2 and ∠11
Answer:
b
Step-by-step explanation:
HEY CAN ANYONE PLS ANSWER DIS MATH QUESTION!!!
Answer:
83 and 98
Step-by-step explanation:
The online price for a box of hair clips is $2.60. For any number of boxes purchased, the cost of shipping is $12. The equation c=2.60b + 12 represents the total cost, c, of ordering b boxes of hair clips. If Mrs. Hilton orders 32 boxes of hair clips, what is the total cost? (6.EE.C.9)
Answer:
$43.2Step-by-step explanation:
Step one:
given data
the total cost function is
c=2.60b + 12
Step two:
Required is c, when b= 12
substitute b=12 we have
c=2.60(12) + 12
c=31.2+ 12
c=43.2
the total cost = $43.2
3 times 5286 what is the products
Answer:
15858 is the answer
Step-by-step explanation:
No explanation just do multiplication
if it takes 5 mintutes to fill 7 cups of soda at the fountain , how many minutes would it take to fill 1.75 cups of soda ? pls help explanation.
Answer:
1.25 minutes
Step-by-step explanation:
5/7=x/1.75
8.75=7x
x=1.25 minutes
Solve, then enter one of the vales of your solutions below. x^2 + 25 =169
Answer:
12
Step-by-step explanation:
-25 from both side
x^2= 144
then you square root it
x= 12
[tex]\huge\text{Hey there!}[/tex]
[tex]\mathsf{x^2 + 25 = 169}[/tex]
[tex]\text{Subtract 25 to both sides}\downarrow[/tex]
[tex]\mathsf{x^2 + 25 - 25 = 169 - 25}[/tex]
[tex]\text{Simplify it}\downarrow[/tex]
[tex]\mathsf{x^2 = 169 - 25}[/tex]
[tex]\mathsf{x^2 = 144}[/tex]
[tex]\text{Take the square root of the numbers (including the mystery number (x))}\downarrow[/tex]
[tex]\mathsf{x = \pm \sqrt{144}}[/tex]
[tex]\text{So, that means that}\downarrow[/tex]
[tex]\mathsf{x = 12}[/tex]
[tex]\text{Or even:}[/tex] [tex]\mathsf{x = -12}[/tex]
[tex]\huge\text{Therefore, your answer should be:}[/tex]
[tex]\huge\boxed{\mathsf{ x =\ }\frak{12}}\huge\checkmark[/tex]
[tex]\huge\text{Good luck on your assignment \& enjoy your day!}[/tex]
~[tex]\frak{Amphitrite1040:)}[/tex]
Solving equations with rational numbers
What is 3 miles per minute expressed in feet per minute? Recall that 1 mile is 5,280 feet.
Answer: 15,840 Ft.
Step-by-step explanation: Brainliest, Please and Thank you :)
Starts from episode 50 or a 500 episode show.
24 minutes per episode
12 hours of watch time
How many episodes can you watch A DAY.
(Freebie if you get the right answer :)
Answer:
50 episodes
Step-by-step explanation:
im just big brain
Answer:
60 i just goggles it and thats the answer
whats the equation for a line thats perpendicular to 6x-2y=8 when it passes through (6,-5)
( i hope i wrote that right sorry)
Answer:
Equation of required line is: [tex]\mathbf{x+3y=-9 }[/tex]
Step-by-step explanation:
We need to find equation for a line that's perpendicular to [tex]6x-2y=8[/tex] when it passes through (6,-5)
We will use the slope-intercept form: [tex]y=mx+b[/tex] where m is slope and b is y-intercept.
Finding Slope m:
When two lines are perpendicular there slopes are [tex]m=-\frac{1}{m}[/tex]
Finding slope of given equation first: [tex]6x-2y=8[/tex]
Writing in slope-intercept form:
[tex]6x-2y=8\\-2y=-6x+8\\y=\frac{-6x}{-2}+\frac{8}{-2}\\y=3x-4[/tex]
Comparing it with slope intercept form: [tex]y=mx+b[/tex] , m= 3
So, slope of given equation is 3
Now, the slope of required equation will be [tex]m=-\frac{1}{m}[/tex]
So, Slope m=-1/3
Finding y-intercept
Using slope m=-1/3 and point (6,-5) we can find y-intercept
[tex]y=mx+b\\-5=\frac{-1}{3}(6)+b\\-5=-2+b\\b=-5+2\\b=-3[/tex]
So, y-intercept is b=-3
Now, finding the equation of required line having Slope m=-1/3 and y-intercept b= -3
[tex]y=mx+b\\y=-\frac{1}{3}x-3[/tex]
Writing in standard form:
[tex]y=-\frac{1}{3}x-3\\y=\frac{-x-9}{3}\\3y=-x-9\\x+3y=-9[/tex]
So, equation of required line is: [tex]\mathbf{x+3y=-9 }[/tex]
Tyler gather data and notices that the number of crimes in Glendale and the number of students enrolled in schools have a strong positive correlation tell a proposes closing down schools as a solution to reduce or illuminate crime in Glendale what do you recommend to the Glendale city Council
Answer:
The fact that the number of crimes and the population of students is positively correlated, means that as the total number of students increases, so does the total number of crimes.
The conclusion that closing schools will decrease crime is absurd. First of all, the variables might be totally unrelated, e.g. places with large number of students are places that have high populations. Higher crime rate are generally linked to neighborhoods or cities with high populations.
The idea of closing schools to fight crime is foolish because it will result in the opposite. Generally, students who go to school tend to be less engaged in criminal activities. The real problem here is that you should try to increase the number of students that attend schools in Glendale, not vice versa.
Find the measure of exterior angle A.
Answer:
40* degress angled
Step-by-step explanation:
Answer:
I believe the answer is a 40 degree angle
Step-by-step explanation:
What is the first step in solving the equation 4.2 y minus 5.2 = 18.5?
Add 5.2 to each side of the equation.
Subtract 5.2 from each side of the equation.
Multiply each side of the equation by 4.2.
Divide each side of the equation by 5.2.
Answer: The first step is to add 5.2 to both sides.
Answer:
add 5.2 to each side of the equation.
Step-by-step explanation:
i did it on edge2020
HELLLP ASAP
1. James mows 5 lawns in 8 hours. At this rate, how many lawns can he mow in 40 hours?
A. 20
B. 1.3
C. 25
D. 200
2. James catches 8 passes in 3 football games. At this rate, how many passes does he catch in 15
games?
A. 40
B. 8
C. 24
D. 5
the answer to 1 is c!!!!!!!
Solve z = -10x, for x.
Answer:
B
Step-by-step explanation:
z = -10x
z + 10 = -10x + 10 = x
Answer: D
If z = -10x, we can divide both sides of the equation by -10 to get z/(-10) = x. This is the same as [tex]x=-\frac{z}{10}[/tex].