Answer:
[tex]6 {d}^{2} + 5cd - 3dc + 8[/tex]
Step-by-step explanation:
b/c we can substructure 5cd and 3dc b/c it doesn't matter if the place of cd and dc change. what I mean if 5 ×3=15 and it is the same with 3×5=15 both of the product are the same but, if it is - and ÷ it wil be wrong for example 5-3=2 but 3-5= -2
if is helpful ❤❤
THANK YOU
Plz help
Suppose y varies directly with x, and y = 13 when x = 4. What direct variation equation relates x and y? What is the value of y when x = –6?
Answer:
direct variation equation: y = 13/4x
y = -19.5 when x = -6
Step-by-step explanation:
y = kx where 'k' is the constant to proportionality
13 = 4k
k = 13/4
equation: y = 13/4x
plug in -6 for 'x' to find value of 'y'
y = 13/4(-6)
y = -19 1/2
A student has a container with a volume of 0.5 liter. He estimates the volume to be 0.4 liter. By what percent is the student's estimate off?
Answer:
20
Step-by-step explanation:
0.5-0.4=0.1,0.1/0.5×100= 20
The students's estimation is 80%.
What is a percentage?A ratio or value that may be stated as a fraction of 100 is called a percentage. And it is represented by the symbol '%'.
Given that a student has a container with a volume of 0.5 liter.
He estimates the volume to be 0.4 liter.
Now to find the percentage of estimation,
estimated volume = correct volume × required percentage / 100
0.4 = 0.5 × required percentage / 100
Required percentage = 0.4 × 100 / 0.5
Required percentage = 0.4 × 100 / 0.5
Required percentage = 80%
Therefore, the students's estimation is 80%.
To learn more about the percentage;
https://brainly.com/question/24159063
#SPJ2
r+11=5
what is r? in order to get 5
Answer:
6 lol
Step-by-step explanation:
Answer:
r = -6
Step-by-step explanation:
r + 11 = 5 which is also 5 - 11 = r
So, r = -6
is 6z-2z+4=4+2z+6z equivalent
Answer:
Step-by-step explanation:
0
Answer:
Yes
Step-by-step explanation:
Lol
Calculate |m| if m=21-72i. Round off answer to nearest hundred
Answer:
n6666667900087474455
Two fair dice are rolled. What is the probability of rolling:(a)double 6 (b)double 3(c) one dice 5, the other dice 6(d) a total of 10(e) a total of 3 or less
A flagpole casts a shadow of 25.5 meters long. Tim stands at a distance of 15.4 meters from the base of the flagpole, such that the end of Tim's shadow meets the end of the flagpole's shadow. If Tim is 2.3 meters tall, determine and state the height of the flagpole to the nearest tenth of a meter.
Answer:
5.8 meters
Step-by-step explanation:
The formula to calculate this is given as:
Height/ Shadow
Shadow of the pole = 25.5 m
Height of the pole = x m
Tim's shadow = Height of the pole - Tim's distance
25.5 m - 15.4 m = 10.1 m
Tim's height = 2.3 m
Hence:
x/25.5 = 2.3/10.1
Cross Multiply
10.1x = 25.5 × 2.3
x = 25.5 × 2.3/10.1
x = 5.8069306931 m
Approximately = 5.8m
Hence, the height of the flagpole = 5.8m
Johnny and Mark's combined age is 26 years old. Johnny is two years older than twice Mark's age. Write a system of equations and solve for each of their ages
m * 2 + 2 = j
Answer:
Mark is 8
Johnny is 18
Step-by-step explanation:
m * 2 = j - 2
26 - 2 = 24
24 / 3 = 8
8 * 2 + 2 = 18
-3w-4=3+3
w=?????????
Answer:
-3.33333
Step-by-step explanation:
-3w - 4 = 3 + 3
Combine like terms
-3w - 4 = 6
Add 4 on both sides
-3w - 4 + 4 = 6 + 4
-3w = 10
Divide by -1 to isolate the variable
-3w/-3 = 10/-3
w = - 3.33333 ( the 3 keeps repeating)
1. A triangle has a base of 8km and height of 3km. What is the area of the triangle?
2. What is the area of a triangle with a base of 4 inches and a height of 9 inches?
Help would be much appreciated
Answer:
1. 12 square kilometers
2.18 square inches
Step-by-step explanation:
To find the area of a square you multiply the base and the height. Then you divide it by 2. 8 times 3 divided by 2 is 12. 4 times 9 divided by 2 is 18. Hope this helps!
Write an equation for the nth term of the following arithmetic sequence. 30, 26, 22, 18, . . . (WILL GIVE BRAINLEST)
Solving Inequalities, HELP PLEASE.!!
Answer:
Group 1. x>-2
Group 2.x≥-2
Group 3.x<-2
Group 4.x≤-2
3х - 7= 2х + 3 help !
Are x+2 (7-x) and x+20-3x equivalent?
Answer:
No
Step-by-step explanation:
1. For each statement below, mark if it's TRUE or FALSE.
Answer:
1 is True 2 is False 3 is False 4 is True 5 is False
Step-by-step explanation:
For triangle FGH the measure in degrees of angles F,G, And H are 86,32, and 3x+5 respectively what is the value of x?
Answer:
The answer is 19
Step-by-step explanation:
add like terms which are 86 32 and 5 and you get 123 subtract that from 180 and get 57 divide 57 by 3 and get 19
Answer:
The answer is 19
Step-by-step explanation:
The total cost of a pizza and 3 drinks is $19. The price of the pizza is $10 and each drink is the same price, d.
Answer:
each of the drinks are $3
Step-by-step explanation:
Answer: 10 d d d / 19
D = 3
Step-by-step explanation:
The Invisible Hand promotes
A. marketplace inflation
B. marketplace competition
C. marketplace monopolies
D. marketplace shortages
What is the y-intercept?
(0, 8)
(8, 0)
2/1
4/1
Answer:
8 and 0
Step-by-step explanation:
please help with this.
Answer:
I don't know how sorry àaaaaaaaaaaaaàaàaaaaaàaaà
Please help me thanks please
Answer:
1200 cubic units
Step-by-step explanation:
If you split the shape into two parts, you can find the volume of each and solve. For the first part, you do 10x8x6 to get 480. For the second part you do 12x10x6 to get 720. Add 480+720 to get 1200.
Hope it helps!
Is this a proportional relationship?
Mrs.Walker would like to give each of her 32 students no less than three stickers. How many stickers must she have
Answer:
Mrs. Walker will need at least 96 stickers in order to give each of her students at least 3 stickers each.
Step-by-step explanation:
32*3=96.
96 is the minimum
find the equation of the line shown
Answer:
[tex]y = - 1x + 9[/tex]
Step-by-step explanation:
Remmeber:
[tex]Slope = \frac{rise}{run} [/tex]
maria pays 15.20 for 5.3 pounds of candy what is the price per pound of candy
Answer:
$2.90 per pound
Step-by-step explanation:
You must divide the total from the amount bought.
15.20/5.3 = 2.8679245283
Next, you round the number by the first 2 decimals.
2.86 = 2.90 - The answer
Check if you need to make sure the answer is correct
Are 5x and 5x^2 like terms? Explain your answerc
Answer:
No. 5x and 5x² are not like terms.
When a variable is raised to two different powers, they can not be added together.
Another way to look at it is to note that:
5x + 5x² ≡ 5x(1 + x)
It is more obvious there that 1 and x are not like terms, thus neither are 5x and 5x², though they do have common factors.
Mr. Gibson has $800 in his bank account. His brother has 100 times as much money in his bank account as Mr. Gibson has. How much money does Ms. Gibson's brither have in his bank account? *
Kamilah noticed that three different-sized boxes of the same cookies were on sale at a grocery store. The 0.425 kg box was on sale for $3.59, the 0.74 kg box was on sale for $4.88, and the 0.95 kg box was on sale for $7.29. Which box of cookies was the best buy? Explain your reasoning. To get you started: 3.59 : 0.425 1kg/ 0.425kg= 2.35 0.425 x 2.35= 1kg $3.59 x 2.35= $8.44 3.59 : 0.425 -> $8.44 : 1kg
Answer:
The best buy is the 0.74 kg box
Step-by-step explanation:
Kamilah noticed that three different-sized boxes of the same cookies were on sale at a grocery store.
We find the unit price for 1 box
a) The 0.425 kg box was on sale for $3.59
= 1 kg = $3.25/0.425
= $7.6470588235
b) the 0.74 kg box was on sale for $4.88,
1 kg = $4.88/0.7$
= $6.5945945946
c) the 0.95 kg box was on sale for $7.29.
1 kg = $7.29/0.95
= $7.6736842105
Which box of cookies was the best buy?
The best buy is the 0.74kg box because 1kg of this box has a lesser price compared to the others.
plz help me out with this
Answer:
B and a great deal on a spring break and a good time to get answer for the spread of Islam in the Horn of the following elements has your examination and your
The neon lights on the dance club sign blink 240 times in 2 minutes. How many times does the neon sign blink in 10 minutes?
Answer:
it blinks 1,200 times
Step-by-step explanation: