Answer: A cross section is the shape we get when cutting straight through an object.
Step-by-step explanation:
4 / 1/7 ............
Answer:
28
Step-by-step explanation:
4/ 1/7 = 4 x 7/1 = 4 x 7 = 28
would set a new school record? A number line going from 515 to 521. An open circle is at 518. Everything to the left of the circle is shaded. A number line going from 515 to 521. A closed circle is at 518. Everything to the left of the circle is shaded. A number line going from 515 to 521. An open circle is at 518. Everything to the right of the circle is shaded. A number line going from 515 to 521. A closed circle is at 518. Everything to the right of the circle is shaded.would set a new school record? A number line going from 515 to 521. An open circle is at 518. Everything to the left of the circle is shaded. A number line going from 515 to 521. A closed circle is at 518. Everything to the left of the circle is shaded. A number line going from 515 to 521. An open circle is at 518. Everything to the right of the circle is shaded. A number line going from 515 to 521. A closed circle is at 518. Everything to the right of the circle is shaded.
Answer:
C
Step-by-step explanation:
Help me please and thank you! its due and this is the last question...
please help me with this for brainliest please dont play around XD
Answer:
23/6
Step-by-step explanation:
3/56
How do you find the equation of each function? Function A is f(x)=3x^2 and Function C is f(x)=18x-16. How do you get those? And then how do you get the equation for Function B? Thanks!
Answer:
[tex]f(x) = 3^x[/tex] --- Function A
[tex]f(x) = x^2 - 5[/tex] --- Function B
[tex]f(x) = 18x -6[/tex] --- Function C
Step-by-step explanation:
Solving (a): Equation of Function A
An exponential equation is represented as:
[tex]y = ab^x[/tex]
From the graph of function A,
[tex]x = 0\ when\ y = 1[/tex]
[tex]x = 1\ when\ y = 3[/tex]
For: [tex]x = 0\ when\ y = 1[/tex]
[tex]y = ab^x[/tex] becomes
[tex]1 = ab^0[/tex]
[tex]1 = a[/tex]
[tex]a =1[/tex]
For: [tex]x = 1\ when\ y = 3[/tex]
[tex]y = ab^x[/tex] becomes
[tex]3 = a*b^1[/tex]
[tex]3 = a*b[/tex]
Substitute 1 for a
[tex]3 = 1*b[/tex]
[tex]3 = b[/tex]
[tex]b = 3[/tex]
[tex]y = ab^x[/tex] becomes
[tex]y = 1*3^x[/tex]
[tex]y = 3^x[/tex]
Replace y with f(x)
[tex]f(x) = 3^x[/tex]
Solving (b): Equation of Function B
A quadratic equation is represented as:
[tex]y = ax^2 + bx + c[/tex]
From the table of function B,
[tex]x = 3\ when\ y =4[/tex]
[tex]x = 5\ when\ y =20[/tex]
[tex]x = 6\ when\ y =31[/tex]
For: [tex]x = 3\ when\ y =4[/tex]
[tex]y = ax^2 + bx + c[/tex] becomes
[tex]4 = a*3^2 + b*3 + c[/tex]
[tex]4 = a*9 + 3b + c[/tex]
[tex]4 = 9a + 3b + c[/tex]
For [tex]x = 5\ when\ y =20[/tex]
[tex]y = ax^2 + bx + c[/tex] becomes
[tex]20 = a*5^2 + b*5 + c[/tex]
[tex]20 = a*25 + b*5 + c[/tex]
[tex]20 = 25a + 5b + c[/tex]
For [tex]x = 6\ when\ y =31[/tex]
[tex]y = ax^2 + bx + c[/tex] becomes
[tex]31 = a*6^2 + b*6 + c[/tex]
[tex]31 = a*36 + b*6 + c[/tex]
[tex]31 = 36a + 6b + c[/tex]
So, we solve for a, b and c in:
[tex]4 = 9a + 3b + c[/tex]
[tex]20 = 25a + 5b + c[/tex]
[tex]31 = 36a + 6b + c[/tex]
Make c the subject in [tex]4 = 9a + 3b + c[/tex]
[tex]c = 4 - 9a - 3b[/tex]
Substitute [tex]c = 4 - 9a - 3b[/tex] in [tex]20 = 25a + 5b + c[/tex] and [tex]31 = 36a + 6b + c[/tex]
[tex]20 = 25a + 5b + c[/tex] becomes
[tex]20 = 25a + 5b + 4-9a-3b[/tex]
Collect Like Terms
[tex]-4+20 = 25a -9a+ 5b -3b[/tex]
[tex]16 = 16a+ 2b[/tex]
Divide through by 2
[tex]8 = 8a + b[/tex]
[tex]c = 4 - 9a - 3b[/tex]
[tex]31 = 36a + 6b + c[/tex] becomes
[tex]31 = 36a + 6b + 4 - 9a - 3b[/tex]
Collect Like Terms
[tex]-4+31 = 36a - 9a+ 6b - 3b[/tex]
[tex]27 = 27a+ 3b[/tex]
Divide through by 3
[tex]9 = 9a + b[/tex]
Solve for a and b in: [tex]8 = 8a + b[/tex] and [tex]9 = 9a + b[/tex]
Subtract both equations:
[tex]8 - 9 = 8a - 9a + b - b[/tex]
[tex]8 - 9 = 8a - 9a[/tex]
[tex]-1 = -a[/tex]
Divide both sides by -1
[tex]1 = a[/tex]
[tex]a = 1[/tex]
Substitute 1 for a in [tex]9 = 9a + b[/tex]
[tex]9 = 9*1 + b[/tex]
[tex]9 = 9 +b[/tex]
Subtract 9 from both sides
[tex]9-9=9-9+b[/tex]
[tex]0=b[/tex]
[tex]b = 0[/tex]
Substitute [tex]b = 0[/tex] and [tex]a = 1[/tex] in [tex]c = 4 - 9a - 3b[/tex]
[tex]c = 4 - 9*1-3*0[/tex]
[tex]c = 4 - 9-0[/tex]
[tex]c = -5[/tex]
So, the equation is:
[tex]y = ax^2 + bx + c[/tex]
[tex]y=1*x^2 +0*x-5[/tex]
[tex]y=x^2 -5[/tex]
Replace y with f(x)
[tex]f(x) = x^2 - 5[/tex]
Solving (c): Equation of Function C
This is calculated using:
[tex]f(x) =a + (x -1)d[/tex]
Where
[tex]a = 12[/tex] -- the first term
d = the difference between successive terms
[tex]d = 30 -12 = 48-30 = 66 -48[/tex]
[tex]d =18[/tex]
So, we have:
[tex]f(x) =a + (x -1)d[/tex]
[tex]f(x) = 12 + (x - 1)*18[/tex]
Open bracket
[tex]f(x) = 12 + 18x - 18[/tex]
Collect Like Terms
[tex]f(x) = 18x - 18+12[/tex]
[tex]f(x) = 18x -6[/tex]
I know what the equation for these problem is and what x is but what is < measures? Are these measures the same? I could have asked the teacher but what if she think that I am annoying.
Answer:
"x" is the actual value of x, <measures is the measures of the angles itselfs. so insert x into the expression to find the angle measure.
Step-by-step explanation:
Answer:
90 degree
Step-by-step explanation:
total angle is the sum of x-18 and x
since the figure is forming right angle so angle is 90 degree
90=x-18 +x
x=54
how do i find the area for this
Answer:
1,728 yd²
Step-by-step explanation:
Area = b × h
36 yd will be the replacement for b
48 yd will be the replacement for h
Now we multiply 36 by 48
36 × 48 = 1,728 yd²
Answer:
1728
Step-by-step explanation:
780,000 divided by 10=?
Answer:
the answer is 78,000
Step-by-step explanation:
your welcome
Just do this in your head,780/10=78 then add on the three zeros from 780000 that you didnt use. 78>>> 78000
Answer=78000
find the area of the figure
A) 450MM
B) 67,500 MM
C) 600MM
D)150MM
Answer:
30x15= 450
15+15=30
1/2 x 30 x 10 = 150
450+150=600
Step-by-step explanation:
Please help me, smart people
sincerely,
-not smart person
URGENT HELP
I don’t understand the question can someone please explain how to get answer
difference is 33
Step-by-step explanation:
100 - 40% = 60 + 7% = 67 + 300 = 367
400 - 367 = 33
Answer: I might well as think the answer is 10.220
Rashida is building a model of her city's downtown area. She is constructing part of an office building, as shown below. Each cube has a length of centimeter.
Based on the model, the length of the building is
centimeter.
The width of the model building is
centimeter.
The height of the model building is
centimeter.
The volume of the model building is
cubic centimeter.
Based on the model, we find the dimensions of the cube. The length of the model building is 2/3 centimeter. The width of the model building is 1/3 centimeter. The height of the model building is 1/2 centimeter. The volume of the model building is 1/9 cubic centimeter.
What are dimensions of a cube?A cube is 3- dimensional shape with 6 equal sides, 6 faces, and 6 vertices in geometry. Each face of a cube is a square. In 3 – dimension, the cube’s sides are; the length, width, and height. Sides of a cube are all equal i.e. Length = Width = Height = a.
The length = breadth = height (of one cube) = 1/6 cm
The length of the model consist of 4 cubes.
Length of model building = 4 * 1/6 cm = 2/3 cm
The width of the model consist of 2 cubes.
Width of model building = 2 * 1/6 cm = 1/3 cm
The height of the model consist of 3 cubes.
Height of model building = 3 * 1/6 cm = 1/2 cm
Volume of the model (cuboid) =
= Length * breadth * height
= [tex]\frac{2}{3} * \frac{1}{3}*\frac{1}{2} = \frac{1}{9}[/tex]
Learn more about dimensions of a cube here
https://brainly.com/question/6507675
#SPJ2
is this expression fully simplified? Explain
4x2 + 10 - x - 6x3
Answer:
-x
Step-by-step explanation:
SOLVE THE EQUATION!!!!!!!!
Answer:
c = 2.6 = [tex]\frac{13}{5}[/tex] = 2 [tex]\frac{3}{5}[/tex]
Step-by-step explanation:
d = 0.26 = [tex]\frac{13}{50}[/tex]
Hope this helps
PLZ I WILL GIVE U BRAINS, HELPPPPPP!!!!!!!!!
Answer:
−26p− 7
Step-by-step explanation:
Cassie has $400 in her account. On average, she deposits $8 into her account every day, for m days. Write an expression to determine how much money will be in her account after m days.
Answer:
400 + 8m
Step-by-step explanation:
Starts with $400 in her account. Every day (we'll use the variable m for the number of days), she deposits $8.
400 + 8m
If you were to be asked how much money she has in her bank account after 10 days, you plug in 10 for m. Same for any other number of days.
To make popcorn, a movie theater uses 6 tablespoons of oil for each cup of popcorn kernels.
Answer:
1. 18
2. 36
3. Not sure, but I think 7
HELP ASAP!!!!! Find the lateral surface area and the total surface area of each figure. round to the nearest tenth if needed. SHOW ALL WORK. (Will give brainliest for correct answer and explanation on what to do)+
Answer:
(1-2) LS = 288cm² TS = 378cm²
(3-4) LS = 1419.2 TS = 1673.5
(5) LS = 543 TS = 606
Step-by-step explanation:
(1-2)
7 1/2 = 7.5
7.5 x 15 = 112.5
9 x 12 ➗ 2 = 54
54 x 2 = 108
9 x 7.5 = 67 .5
(3-4)
3.14 x 81 = 254.3
(5)
9 x 15 = 135 x 2 = 270
15 x 7 = 105 x 2 = 210
9 x 7 = 63
(add)
pls answer quick rjwejriwejriwekr
Answer: $181.48 O_O
Step-by-step explanation: i know that stuff
Answer:
$530.48
Step-by-step explanation:
i can answer now yay
Mrs. Kelley is driving 540 miles to visit Niagra Falls. She drives at an average rate of 60 miles per hour. Using the formula d (distance) divided by r (rate) in order to find the time it will take for Mrs. Kelley to get to Niagra Falls. Pls help :c
Answer:
9 hours with no stops
Step-by-step explanation:
540 mile drive
60 MPH
distance divided by rate is 540 divided by 60 = 9
6th grade math-
x + 2 =?
x - 2 =?
2x =?
x ÷ 2=?
please help asap :((
Answer:
x = -2
x = 2
x = ?/2
x = ?(2)
Step-by-step explanation:
For each problem you want to isolate the variable.
For x + 2 you want to move the 2 by subtracting it (since it is being added to the x) from each side. Assuming the other side of the equal sign is 0, the answer is -2.
Same thing for x - 2, isolate by adding the 2 (since it is being subtracted).
For 2x and x ÷ 2 it is a little different. If we assume the opposite side is 0, the answer will be 0 because 0 divided or multiplied by 2 will give you 0. But if the opposite side is a different number, the answer will be that number and then the respected equation for the problem (divide both sides by 2 in 2x because the x is being multiplied by the 2 and multiple both sides by 2 in the x ÷ 2 because the x is being divided by the 2).
Give the other guy brainliest he really deserves it
The quantity of 7 less than x, multiplied by 4
Answer:
Step-by-step explanation:To answer your question, the first number 9/8 has the reciprocal 8/9.
Find the area of the polygon, the vertices are (1,4) (2,1) (4,1) (5,4)
Answer:
Hello
Step-by-step explanation:
A scatter plot is made with the data shown:
Number of Weeks in Business 1 2 3 4 5 6 7 8 9
Number of Customers 0 2 4 6 8 10 12 14 16
What type of association will the scatter plot for this data represent between the number of weeks in business and the number of customers? (4 points)
a
No association
b
Positive linear association
c
Negative linear association
d
Positive nonlinear association
please help me first answer gets brainliest
Step-by-step explanation:
Answer: -40
Step-by-step explanation:
I dont know how to solve this
some please hepl and do it right pls
Answer:
7109.76m2
plz mark brainliest
First right equals brainliest, Pls dont answer for the points this is serious. I just need this and 3 more which I will ask later. Anyway I am making this worth more points because I need help:)
I can't see the picture, can you please explain the problem in the comment bar below this so can edit my answer to help?
Giving brainliest!!!!!!!!!!!!
Answer:
D
Step-by-step explanation:
there are data values from 17-26
so D
Giving brainliest!!!!!!!!!!!
Answer:
22 1/2
Step-by-step explanation:
22 1/2
srry if its wrong <3