Answer:
After comparing we get [tex]\mathbf{0.3\: <\: 0.7}[/tex]
Step-by-step explanation:
We need to compare the comparison below.
[tex]\frac{3}{10}\:?\:0.7[/tex]
For comparison both terms should be in decimal.
So, converting 3/10 into decimal we get 0.3
Now, [tex]0.3\:?\:0.7[/tex]
We know that 0.3 is less than 0.7
So, [tex]0.3\: \mathbf{<}\: 0.7[/tex]
So, after comparing we get [tex]\mathbf{0.3\: <\: 0.7}[/tex]
A teacher wants to investigate whether listening to music while taking a math test increases scores. He instructs half
of his 36 students to listen to music while taking a test and the other half to not listen to music during the test. To
determine who listens and who does not, the teacher identifies the two students who scored highest on the last test
and randomly instructs one to listen to music and one to not. The teacher does the same for the next two highest-
scoring students and continues in this manner until each student has their instructions. Which of the following best
describes this plan?
O This is a cluster sample.
O This is an observational study.
O This is a stratified random sample.
O This is an experiment with blocking.
O This is a completely randomized experiment.
For your question: "A teacher wants to investigate whether listening to music while taking a math test increases scores. He instructs half
of his 36 students to listen to music while taking a test and the other half to not listen to music during the test. To
determine who listens and who does not, the teacher identifies the two students who scored highest on the last test
and randomly instructs one to listen to music and one to not. The teacher does the same for the next two highest-
scoring students and continues in this manner until each student has their instructions. Which of the following best
describes this plan?"
The answer is D
7TH GRADE MATH PLS HELPPPP,
About how many centimeters are in 6.25 inches if 1 inch is about 2.5 centimeters? Show your reasoning.
PL SHOW UR WORK, WILL GET BRAINLEST N POINTS IF YOU EXPLAIN!!!!
Answer:
15.625 cm
Step-by-step explanation:
1 in = 2.5 cm
6.25 in = x
x = 6.25 * 2.5
x = 15.625 cm
Can you help me graph y = -7x - 1 ?
Complete the table for the given rule.
Rule: y = x + 3
у
5
Answer:
Step-by-step explanation:
x=y-3 this is your main formula to find x
first y=4-3=1 , x=1
second y=8-3=5 , x=5
third y=5-3=2, x=2
graph the equation y = -3x on a graph
Put a dot on the -3 from the y-axis and draw a straight line from left to right.
If YZ= 55 millimeters, what would be the length of QR? Millimeters
Answer:
30 mmStep-by-step explanation:
Hope it helpcost
I-cost
I-cost
I cost
= 4 cost cact
verify
Answer:
yes
Step-by-step explanation:
Please help! If i don't get all my homework done I can't leave the house, but I'm stuck on this question.
can you please help me solve the question pictured?
Answer:
2 x 10 to the 3rd power
Step-by-step explanation:
0.008/0.000004 = 2,000
2,000 = 2 x 10 3
Find the slope of the line that passes through (2, 12) and (9, 3).
Simplify your answer and write
as a proper fraction, improper fraction, or integer.
Answer:
The slope of line is [tex]-\frac{9}{7}[/tex].
Step-by-step explanation:
Given points are;
(2, 12) and (9, 3)
Here,
x1 = 2 and y1 = 12
x2 = 9 and y2 = 3
Slope of a line is given by the following formula;
[tex]m =\frac{y_2-y_1}{x_2-x_1}\\\\m = \frac{3-12}{9-2}\\\\m=\frac{-9}{7}[/tex]
Therefore,
The slope of line is [tex]-\frac{9}{7}[/tex].
Melody is solving the equation x +12=31. Find her mistake and correct it.
You buy two packages of almonds. One package is 10.47 kg and the other is 8.23 kg. What is the difference?
Answer:
2.04 kg
Step-by-step explanation:
What is the value of the x variable in the solution to the following system of equations? (5 points)
4x − 3y = 3
5x − 4y = 3
x can be any number as there are infinitely many solutions to this system
There is no x value as there is no solution to this system
−3
3
Answer:
D. 3Step-by-step explanation:
Given system:
4x − 3y = 3 5x − 4y = 3Solve for x by elimination method:
Multiply the first equation by 4 and the second equation by 3:
4(4x - 3y) = 4(3) ⇒ 16x - 12y = 123(5x - 4y) = 3(3) ⇒ 15x - 12y = 9Subtract the second equation:
16x - 12y - 15x + 12y = 12 - 9x = 3Correct option is D
Answer:
x=3Step-by-step explanation:
to understand thisyou need to know about:system of linear equationPEMDASsolving system of linear equation using substitution methodgiven:4x − 3y = 3
5x − 4y = 3
let's justify how many solutions the system of linear equation hasa system of linear equation has one solution when
[tex] \frac{ a_{1} }{a_2} ≠ \frac{b_1}{b_2} [/tex][tex] \frac{4 }{5} ≠ \frac{ - 3}{ - 4} [/tex]
therefore
this system of linear equation has only one solution
let's figure out x using substitution method:4x − 3y = 3.......1
5x − 4y = 3.......2
get from 1st equation
[tex]4x - 3y = 3 \\ - 3y= - 4x + 3 \\ y = \frac{ - 4x + 3}{ - 3 } \\ y = \frac{4}{3} x - 1[/tex]
[tex]subsitute \: got \: volue \: of \: y \: into \: 2nd \: equation[/tex]
[tex]5x - 4( \frac{4}{3} x - 1) = 3 \\ 5x - \frac{16}{3} x + 4 = 3 \\ 5x - \frac{16}{3} x = - 1 \\ \frac{15x - 16x}{3} = - 1 \\ - x = - 3 \\ \huge \therefore \: x = 3[/tex]
Can someone explain please!!!
What is the value of this Expression (81¼) ⁴
Answer: 43580627.4414
This question is fake I think because it is impossible even for 10x10x10x10 to get an 2 digit answer
PLZ!!!!!!!!!!!! Answer quickly
find range, domain, asymptote, and y-intercept of the equation f(x)=5^x
Answer:
i have no idea how to answer this
Step-by-step explanation:
it really works
*UNIT RATE AND PROPORTIONS*
the price for 4 pound of ribs is $28.00
*QUESTIONS* *what is the unit rate?* *how much would 6pounds cost?*
*how many pounds can be bought for $70* NEED HELP ASAP‼️‼️
Answer:
Unit rate is $7 per pound.
6 pounds will cost $42
You can buy 10 pounds for $70
Step-by-step explanation:
28/4 = $7 --> Unit rate is $7 per pound.
7 × 6 = $42 --> 6 pounds will cost $42
70/7= 10 --> You can buy 10 pounds for $70
Consider right triangle
Answer:
i think its c?
Step-by-step explanation:
6. A cation is any atom or group of atoms with
A) a positive charge. B) no charge. C) a negative charge. D) more electrons
Please help !!!
Answer:
bro ur in mathematics
Step-by-step explanation: none
Pleaseee need help quick
Answer: 12 minutes
Step-by-step explanation: water :)
whats the slope of 3x-4y=20
A grocery store sells a bag of 7 oranges for $6.65. What is the unit cost?
8(3x-2)=2(8)+16 explanation how the order of operations is used. How the equation is kept balanced.
Answer:
See explanation
Step-by-step explanation:
Given;
8(3x-2)=2(8)+16
We clear the brackets
24x - 16 = 16 + 16
24x - 16 = 32
We add 16 to both sides
24x - 16 + 16= 32 + 16
24x = 48
We divide both sides by 24
24x/24 = 48/24
x =2
PLS HELP 6TH GRADE MATH DUE IN 1 MIN
Answer:
second one is also done.
Find the exact value of cot 315∘ in simplest form with a rational denominator.
Answer: -1
Step-by-step explanation:
Ben is playing a card game. The numbers of the cards in his hand are 2, 3, 4, 4, 5, 7, 9, and 10. Ben may only play one card at a time.
What is the probability the next card Ben plays will be an odd number?
343 fourths
121 half
383 eighths
14
Answer: Half
Step-by-step explanation:
what is the measure of
Answer:
[tex]abd = 180 - 32 (linear \: pair)\\ = 148 [/tex]
Please answer by showing your work
Answer:
Step-by-step explanation:
4x-2 +3x+7 = 180
7x + 5 = 180
7x = 175
x = 25
3(25) + 7 = 82
Answer:
82 (degrees)
Step-by-step explanation:
4x-2+3x+7=180=7x+5...175=7x...x=175/7... x=25
This is both angles combined which we know adds up to half of the entire quadrilateral (180 degrees). Then solve.
3(25) +7=82 which is equal to f
f=82
In triangle XYZ, let angle Y be a right angle, mZ = 54°, and YZ = 361. Find the area of the
triangle. Round to the nearest whole number.
Answer:
89,709
Step-by-step explanation:
∡Z= 54°
tan 54 = XY / 361
XY = 361 · tan 54°
XY = 497
A = 1/2 (361) (497)
Factor [tex]2x^2+13x-7[/tex]
Debi walks laps around the mall for exercise during the winter months. The table represents the number of steps recorded on her pedometer as she walks laps around the mall one day.
Answer:
One lap around the mall is equal to 2,425 steps
Step-by-step explanation:
I got it right
