A national survey of middle-school students asks which subject is most challenging. Which of these samples is a representative sample? A. 372 sixth-graders in a certain town B. 972 seventh-graders in a certain county C. 619 eighth-graders in different states D. 400 students from various states, representing different grades, 6–8
What’s the product of 728x32
Answer:
23296
Step-by-step explanation:
You will know this if you use box method or using standard form its pretty much simple multiplication
Please help me :( this is eighth grade math and it’s hard for me cause I’m dumb
Answer:
b when b³ = 8
Step-by-step explanation:
Value of c when c² = 8 :-
[tex]c^2 = 8\\=> c = \sqrt{8} = 2\sqrt{2} = 2.828[/tex]
Value of d when d³ = 9 :-
[tex]d^3 = 9 \\=> d = \sqrt[3]{9} = 2.080[/tex]
Value of b when b³=8
[tex]b^3 = 8\\=> b = \sqrt[3]{8} = 2[/tex]
Value of a when a² = 9
[tex]a^2 = 9\\=> a = \sqrt{9} = 3[/tex]
Comparing all the values of a , b , c , & d ..... we find that value of b is the least
Answer:
smart
Step-by-step explanation:
3. If the point (3, 4) lies on the graph of the equation 3y = ax + 7, find the value of a.
Answer:
3/5
Step-by-step explanation:
3y = ax + 7
3(4) = a(3) + 7
12 = 3a + 7
5 = 3a
3/5 = a
Best of Luck!
x = 3
y = 4
Given Equation:3y = ax + 7
Solution:By putting the values of x and y, we get
3(4) = a(3) + 7
or, 12 = 3a + 7
or, 12 - 7 = 3a
or, 5/3 = a
Answer:a = 5/3
To Check:12 = 5/3(3) + 7
or, 12 = 12
LHS = RHS
Hence, Verified.
7) A real number that is less than zero. These represent opposites.
Answer:
A negative number
Step-by-step explanation:
I know this is right. Negative numbers represent opposites. If positive represents a movement to the right, negative represents a movement to the left.In the context of negative numbers, a number that is greater than zero is referred to as positive. Thus every real number other than zero is either positive or negative, while zero itself is not considered to have a sign. Positive numbers are sometimes written with a plus sign in front, e.g. +3 denotes a positive three.
Consider the function represented by 9x+3y = 12 with x as the independent variable. How can this function be
written using function notation?
ORD=-v+
O f(x) = -3x+4
OF) = -3y+ 4
Answer:
f(x) = -3x + 4Step-by-step explanation:
Given function:
9x + 3y = 12Putting this into slope-intercept form: y = mx + b
9x + 3y = 123y = -9x + 12y = -3x + 4Replacing y with f(x)
f(x) = -3x + 41. Numa escola de 670 alunos, 352 estudam Inglês, 125 fazem apenas o curso de Espanhol e 85 estudam as duas línguas. Com base nessas informações, determine: a) Quantos estudam Inglês ou Espanhol? b) Quantos fazem espanhol? c) Quantos não estudam nenhuma dessas línguas?
Answer:
a) Quantos estudam Inglês ou Espanhol?
477
b) Quantos fazem espanhol?
210
c) Quantos não estudam nenhuma dessas línguas?
193
Step-by-step explanation:
a) Quantos estudam Inglês ou Espanhol?
Inglês ou Espanhol = Quantidade de alunos que cursam inglês + Quantidade de alunos que cursam espanhol - Quantidade de alunos que cursam inglês e espanhol
= 352 + 210 - 85
= 477
b) Quantos fazem espanhol?
Isso é dado na pergunta como alunos que só aprendem espanhol = Somos informados de que o número de alunos que estudam apenas espanhol = 125
Número de alunos que cursam espanhol = Número de alunos que cursam apenas espanhol + Número de alunos que cursam espanhol e inglês
Número de alunos que fazem espanhol = 125 + 85
= 210 alunos
c) Quantos não estudam nenhuma dessas línguas?
Número total de alunos - (número de alunos que não cursam nenhum dos idiomas) = Número de alunos que cursam inglês + Número de alunos que cursam espanhol - Número de alunos que cursam os dois
= 670 - (número de alunos que não estudam nenhum dos idiomas) = 352 + 210 - 85
= 670 - (número de alunos que não estudam nenhum dos idiomas) = 477
Número de alunos que não cursam nenhum dos idiomas = 670 - 477
= 193 alunos
-12x + 18 – 10x – 5 = -31
Answer:
22
Step-by-step explanation:
Step 1:
- 12x + 18 - 10x - 5 = - 31
Step 2:
- 22x + 18 - 5 = -31
Step 3:
- 22x + 13 = - 31
Step 4:
- 22x = - 44
Answer:
x = 22
Hope This Helps :)
Answer:
Your answer is x = 2
Step-by-step explanation: [tex]-12x + 18-10x-5 = -31[/tex]
subtract 18 - 5 = 13 and add -12x+(-10x)= -22x
[tex]-22x+13=-31[/tex] subtract 13 on both sides
[tex]-22x+13(-13)=-31(-13)[/tex] cross out +13(-13) and -31-13= -44
[tex]-22x=-44[/tex] divide -22 on both sides
[tex]\frac{-22x}{-22} = \frac{-44}{-22}[/tex] cross -22x/-22 and divide -44 and -22= 2
[tex]x = 2[/tex]
i’d george washington is on the quarter and the $1 bill and Abraham lincoln is on the penny and the $5 bill which of the following is true
Answer:
Both of them are true?
how to do this question c. I know how to do b and a 6,0,3,2,2,5 that they scored
Answer:
I’m pretty sure you have to multiply the 4 because that’s how many points you get per Galo and multiply by 7 because it was the seventh game so 28.
Step-by-step explanation:
True or False, the chance of flipping heads on a coin 3 times in a row is 1/2
true flip a coin it's fifty fifty
Answer:
False
Step-by-step explanation:
Each toss is an independent event, so the probability of three tosses of heads in a row is the product of the three probabilities..
Each probability of heads is
p(heads) = 1/2
p(heads, heads, heads) = p(heads) * p(heads) * p(heads) = 1/2 * 1/2 * 1/2 = 1/8
Answer: False
COPY-
Evaluate each expression if a = 4, b = 6, and c = 2
-> 3a +6²c
What is
Step-by-step explanation:
a=4 so 3a becomes 3x4.
3x4=12
12+6c^2
C=2 so 6c^2 becomes (6x2)^2
6x2=12 and 12x12 because of the exponent.
12x12=144
12+144=156
If it's wrong, i'm sorry
Etta buys some ribbon and cuts it into 5 pieces that are the same length. Each piece is 9 inches long. How long was the ribbon that Etta bought? The ribbon that Etta bought was inches long.
Answer:
The ribbion she bought is 45 inches long
Step-by-step explanation:
Answer:
about 45 inches
Step-by-step explanation:
Etta cut the ribbon into 5 peices that were each 9 inches long. Multiply those number and it should be about 45 inches.
2. and 100 are a zero pair.jia
Answer:
More information please
Step-by-step explanation:
There is not enough information to complete the equation.
Markus decides to return 4 shirts costing $19 each to a clothing store. While there, he decides to purchase 2 pairs of shoes at $45 each and a raincoat for $62.75. The clerk charges him 5% tax on the amount due after returns. What amount does he owe the clerk?
Answer:
$80.59
Step-by-step explanation:
You add the price of the raincoat and shoes to get 152.75, you then subtract the price of the 4 shirts you returned to get 76.75. The 5% tax for this is 3.84 so you add the two together and you get $80.59.
Mr.V's trail mix uses 1/2cup of peanuts, 2 1/4 cups raisins, and he uses 2 times more sunflower seeds than raisins.How many total cups of trail mix can mix can Mr.V make
Answer:
The total number of cups is 9 1/2 cups
Step-by-step explanation:
Here, we are interested in calculating the total cups of trail mix that Mr V can make.
From the question, we are told that he used 1/2 cups of peanuts, 2 1/4 cups of raisins and 2 times more sunflower seeds than raisins.
So basically, we need to find the number of cups of sunflower seeds used.
The information we have here is that he used 2 times more of raisins;
Thus, the number of cups of sunflower would be 2 * 2 1/4 = 2 * 9/4 = 9/2. But practically is 9/2 , two times more than 2 1/4? NO!
What we should do here is to add 9/2 to 2 1/4. In that case, the difference between the two will be 2 times the cups of raisins;
So 9/2 + 9/4 = (18 + 9)/4 = 27/4
So the total number of cups of trail mix that can be made will be;
1/2 + 27/4 + 9/4 = (2 + 27 + 9)/4 = 38/4 = 19/2 = 9 1/2 cups
!!20 POINTS!!
Find AC
Answer:
A. 12
Step-by-step explanation:
a = -7
b = -4
c = 5
ignore B. counting should be till the desired grid which is C
AC = 7 + 5
AC = 12
Answer: 12
Step-by-step explanation: just count their distance by 1
Complete the inequality statement 5.8cm__580mm
Answer:
5.8cm < 580mm
Step-by-step explanation:
Since 1mm=0.1cm, then 580mm=58cm which is bigger than 5.8cm, so therefore 5.8cm < 580mm
Answer: 5.8cm < 580mm
Its really easy if you think about it for a second.
2|3x - 2|= 14 how would you solve this absolute value equation?
Answer: 2. |3x-2|= 14
|3x-2|=2.7/2
|3x-2|=7
x∈ {3,-5/3
Step-by-step explanation: \frac{5}{3}
Answer:
x = 3x = - 5/3Step-by-step explanation:
2|3x - 2|= 14|3x - 2|= 71) 3x - 2 ≥ 0 ⇒ 3x ≥ 2 ⇒ x ≥ 2/3
3x - 2 = 73x = 9x = 3 is valid root as 3 ≥ 2/32) 3x - 2 < 0 ⇒ 3x < 2 ⇒ x < 2/3
- (3x - 2) = 73x - 2 = -73x = -5x = -5/3 is valid root as -5/3 < 2/37x^2+8=18x Need help learning factoring please put work so I can understand
Answer:
(x - 2)(7x - 4)=0
Step-by-step explanation:
[tex]7 {x}^{2} + 8 = 18x \\ 7 {x}^{2} - 18x + 8 = 0 \\ 7 {x}^{2} - 14x - 4x + 8 = 0 \\ 7x(x - 2) - 4(x - 2) = 0 \\ (x - 2)(7x - 4) = 0[/tex]
The road has a 10% slope. Calculate its angle of inclination.
Answer:
angle of inclination = 5.71°
Step-by-step explanation:
[tex] 10 \% = \frac{10}{100} = 0.1 = \tan \theta \\ \theta = { \tan}^{ - 1} (0.1) \\ \theta = 5.7105931375 \\ \huge \red{ \boxed{\theta = 5.71 \degree}}[/tex]
Which integer is 45 square closest to?
Answer:
√45 lies between 6 and 7 .
Step-by-step explanation:
We know that. √36=6. And. √49=7. It makes sense that √36<√45<√49 therefore 6<√45<7 .
Find the difference: 34x-4x+2y=?
Answer: The answer is 30x-2y
Step-by-step explanation: Subtract 4x from 34x to get 30x. Then the rest just falls down and you are left with 30x-2y. Also can you please give me a brainliest. I really need one.
The measure of G is six more than twice the measure of H. If G and H are supplementary angles, find the measure of H pls I need help pls
Answer:
The measurement of angle H is 58°
Answer:
77
Step-by-step explanation:
G =2H+6=180
2H+6=180
2H=180-6
2H=154
H=154/2
=77
Step one choose the lowest common denominator
be more specificlike what are the options
I need helpppp with this question
Answer: Y = 6 and X = 5
Step-by-step explanation: Im not sure But i think that that your supposed to subtract by 2 so 8 - 2 would equal 6 and then 7-2 equals 5 so yeah
Solve for x:
x - 6 = - 3x + 22
Plz I need this answer
Answer:
Your Answer is 7
Step-by-step explanation:
Very Simple!
x-6 = -3x + 22
Move the 6 over to the other side by adding 6 to both sides
x = -3x + 28
add 3x to both sides!
4x = 28
Divide by 4!
x = 28/4
x = 7!
Answer:
x=7
Step-by-step explanation
x-6 = -3x +22
+6 +6
x = -3x +28
+3x +3x
4x = 28
÷4. ÷4
x=7
A point has the coordinates (0, k).
Which reflection of the point will produce an image at the same coordinates, (0, k)?
Answer:
B
Step-by-step explanation:
I took the assignmen.
The reflection of point that will produce the image at same coordinate (0, k) is across the y - axis
We have a Point with coordinates (0, k).
We have to find the reflection that will produce the image at the same coordinate (0, k).
Consider a Point P (x, y). Find the image of the point across x - axis and y - axis.For a Point P [tex](x,y)[/tex] the image across -
x - axis is (x, -y).y - axis is (-x, y)We can use the above laws to find the reflection of point
For Point P(0,k) , the -
image across x - axis will be (0, -k).image across y - axis will be (-0, k), which is same as (0, k).Hence, the reflection of point that will produce the image at same coordinate [tex](0,k)[/tex] is across the y - axis.
To solve more questions on finding the reflection of a point, visit the following link -
https://brainly.com/question/19402143
#SPJ6
Solve the equation for the variable. Make sure your answer is in simplest form.
[tex] - 3 - 39x = 11x - 23[/tex]
[tex]x = \frac{?}{?} [/tex]
Enter the numbers that belong.
Answer:
Here's your answer
hope this helped you
please mark as the brainliest (ㆁωㆁ)
Answer:
x = [tex]\frac{2}{5}[/tex]
Step-by-step explanation:
Given
- 3 - 39x = 11x - 23 ( subtract 11x from both sides )
- 3 - 50x = - 23 ( add 3 to both sides )
- 50x = - 20 ( divide both sides by - 50 )
x = [tex]\frac{-20}{-50}[/tex] = [tex]\frac{2}{5}[/tex]
At 11 AM, one share of Starbucks stock was $41. By 4 PM the price was $44. The rate the Starbucks stock value was changing is _$per hour.
Answer:
$0.60 per hour
Step-by-step explanation: