Answer:
12
Explanation:
21 ÷ 7 × 4
21 ÷ 7 = 3
3 * 4 = 12
Answer:
12
Step-by-step explanation:
So..... multiplication can be done at the same time as division, so we don't have to worry about the order of operations :)
so, 21 divided by 7 is 3
then, you multiply 3 by 4, which is 12
and btw, I also found another methoddddddddddddd
you can do, 21 times 4, which is 84, divided by 4 times 7, which is 28
84 divided by 28 is 3
then you multiply it by 4, it gives 12
and btw, that also works for other numbers too!!!!!!!!!!!!
Consider the line 2x + 4y=5.
What is the slope of a line parallel to this line?
What is the slope of a line perpendicular to this line?
slope of the line is given by
2x+4y=5
4y=-2x+5
y=(-2/4)x+5/4
y=(-1/2)x+5/4
from, y=mx+c
m=-1/2
slope of a line parallel to this line
from, m1=m2
slope, m=-1/2
slope of a line perpendicular to this line
from, m1m2=-1
(-1/2)m2=-1
m2=2
slope, m=2
Round the number 2.72603 to 2 decimal places.
Answer:
2.73
Step-by-step explanation:
You round 6 up to get 2.73
Please give brainliest and thank me if it helped
Which of the following best describes the equation below?
y = -3x - 15
A.nonlinear
B. both linear and non linear
C.linear
D.neither linear or nonlinear
pls help
HURRY!!!!!!!!! THIS QUESTION IS 50PTS.
Option 1: $10.00 every day
Option 2: $3.00 on the first day, $3.50 on the second, $4.00 on the third, and so on, increasing by $0.50 per day
Option 3: $0.01 on the first day, $0.02 on the second, $0.04 on the third, and so on, doubling each day.
For option 1,2 and 3 Write a formula to find how much you would make on any day.
A. 4x(-1)=
B. 4x(-2)=
C. 4x(-3)=
Explain please
Make b the subject of the formula a = Vb + 6
Answer:
b = (a - 6)/V
Step-by-step explanation:
a = Vb + 6
Subtract 6 from both sides:
a - 6 = Vb
b = (a - 6)/V
the two triangles shows the congruent ABC LMN. based on this information which of the following is a true statement
Answer:
It's D I think.... Line up B and C with M,N
Solve the inequality.
q - 12 ≥ -13
q ≥ 1
q ≥ -1
q ≥ 25
q ≥ -25
Answer:
[tex] - 12 \geqslant - 13 \\ \geqslant - 13 + 12 \\ \geqslant - 1 [/tex]
The required solution to the given inequality q - 12 ≥ -13 would be q ≥ -1. The correct answer would be an option (B).
What is inequality?Inequality is defined as mathematical statements that have a minimum of two terms containing variables or numbers that are not equal.
The inequality is given in the question, as follows:
q - 12 ≥ -13
We have to determine the solution to the given inequality
As per the question, we have
⇒ q - 12 ≥ -13
Add 12 on both sides of the above inequality
⇒ q - 12 + 12 ≥ -13 + 12
⇒ q ≥ -1
Therefore, the required solution to the given inequality would be q ≥ -1.
Hence, the correct answer would be an option (B).
Learn more about the inequalities here:
brainly.com/question/20383699
#SPJ5
Which number line represents the solution set for the inequality - 2x2 4? -10 -8 6 -4 -20 2 4 6 8 10 -10 -8 6 + -2 0 2 -4 6 + -10 -8 6 -4 -2 0 2 68 10 -10 -8 -6 -4 -2 0 6 810
Answer:
Option (2)
Step-by-step explanation:
Given inequality is,
[tex]-\frac{1}{2}x\geq 4[/tex]
⇒ [tex]\frac{1}{2}x\leq -4[/tex]
⇒ x ≤ -8
When we plot this inequality on a number line,
An arrow starting with a solid point from x = -8 and arrow directing towards negative numbers will represent the given inequality.
Option (2) will be the answer.
Answer:
[tex] - \frac{1}{2} x \geqslant 4 \\ - x \geqslant 2 \times 4 \\ - x \geqslant 8 \\ \boxed{\ x \leqslant - 8}[/tex]
x→{-∞,-8]
Number line :---
Arrow which represents solid sphere directed from (-8) moving towards left (-∞) will be the answer
2nd one is the right answer.whats 13/6 divided by 8 evaluated
Answer:
0.27083333333 or 13/48
Step-by-step explanation:
Answer:
13/48
Step-by-step explanation:
the slope of a line is -4/5 what is the rise if the run is 20?
Answer:
rise= -16
Step-by-step explanation:
Please see the attached picture for the full solution.
I need halp with this-
Z=9
Answer:
81 + 81 + 10 aka 172
Step-by-step explanation:
Answer:
172
Step-by-step explanation:
z = 9
9 to the second power is 81
9 times 9 is 81
plus 10
= 172
hope this helps dude
Find the lcm using the prime fatorisation of 40 and 56
Answer:
LCM: 280
Step-by-step explanation:
;)
is y=4x-5 proportional or no proportional
Answer:
non proportional
Step-by-step explanation:
you're a customer with an everyday checking account. indicate which statement below is TRUE.
Answer:
The first choice
Step-by-step explanation:
I know this because I have one, but also, it says in the options to avoid monthly fee section.
8 + 2/3(12b +15)
Who ever answers correctly I will mark brainliest
Answer:
Simplify: 8b+18
Step-by-step explanation:
Answer:
8b+15
Step-by-step explanation:
this is simplified
have a good day or night
Compare using >,=, or <.
a. 3_ -3
C. -12_ -24
b. 12_24
d. 5__-(-5)
Answer:
a. 3 > -3
C. -12 > -24
b. 12< 24
d. 5 = -(-5)
Step-by-step explanation:
Help!!!!!!!!!!!!!!!!!!!!
Answer:
Step-by-step explanation:
It would be D I think...
estimate 5/11 + 5/16 . use the benchmarks 0,1/2 and 1
a. 1/2
b. 1 1/2
c. 2
d. 1
pls help
Answer:
D
Step-by-step explanation:
5/11 and 5/16 = 80/176 + 55/176 which equals 135/176 which simplifies into 0.76 which is closest to 1
Another one!
I don´t get how to solve it please explain
Answer:
B. 16.9
Step-by-step explanation:
Reverse Pythagoreans theorem C^2 - B^2 = A^2 so
7^2 - 5^2 = c^2 and it comes out to
49-25 = 24 the square root of that is 4.9 (rounded)
But we are lookign for the perimeter so
4.9 + 7 + 5 = 16.9
Please help me with this homework
Answer:
linear
Step-by-step explanation:
if you have access to a graphing calculator then enter the equation and you can see it forms a line
if you have graph paper, create some coordinates, plot and connect them
example of some ordered pairs could be:
(0, 7)
(2, 6)
(-2, 8)
I need help finding Z
Answer:
the angle is 80° ,, for sure .
when 832 is divided by n, the result is 16
PLEASE HELP ME HURRY I REALLY NEED THIS!!!! Graph the equation.
y = 2x + 4
Answer:
Step-by-step explanation:
Answer:
The slope is 2/1. The y-intercept is 4.
Step-by-step explanation:
First graph 4 on the y-axis (0,4). From there your going to up by 2, and right 1. Keep going until you can’t graph no more. Now go back to your point (0,4) go backwards now so Down 2, left 1. Graph until you can’t anymore. And your done! Make sure to add arrows and write down the equation on the line.
Determine whether the given set is a function or not. Explain.
{(6,-1), (-4,2), (5,2), (4,6), (6,5)}
Answer: No.
Step-by-step explanation: A function means that for every x, there is only ONE y value. In this case, 6 can be either -1 or 5, which is more than one value.
Answer:
The given set is NOT a function
Step-by-step explanation:
A function is a given set of data in which no x values repeat, where y values may or may not repeat. Since this given set does have a x value that repeats, it is not a function!
PLEASE HELP!! ILL MAEK BRAINLIEST IF RIGHT THANKS!!
Which inequality represents the sentence below?
The difference of –3.2 and the sum of a number and 19.1 is at most 14.2.
Negative 3.2 minus (x + 19.1) less-than-or-equal-to 14.2
Negative 3.2 minus x + 19.1 less-than-or-equal-to 14.2
Negative 3.2 minus (x + 19.1) greater-than-or-equal-to 14.2
Negative 3.2 minus x + 19.1 greater-than-or-equal-to 14.2
Answer:
Negative 3.2 minus (x + 19.1) less-than-or-equal-to 14.2
Step-by-step explanation:
Negative 3.2 minus (x + 19.1) less-than-or-equal-to 14.2
WILL GIVE BRAINLIEST
A new car cost $18,000.00. It is expected to depreciate at an average rate of 15% per year. Find the value of the car in 5 years. Show work.
Answer: $1.37
Step-by-step explanation:
[tex]c (t) = 18,000 (0.15)^{t}[/tex]
t = amount of years
[tex]c (5) = 18,000 (0.15)^{5}\\c (5) = 18,000 * 0.0000759375\\c (5) = 1.366875\\[/tex]
1.366875 ≈ 1.37
c (5) = 1.37
In 5 years, the value of the car should be approximately $1.37
Hope I helped!
A group of friends decided to share
4 chocolate bars. If each friend only
ate 2/3 of a chocolate bar, how many
friends shared the chocolate bars?
Answer:
6
Step-by-step explanation:
mark me brainliesst please
Identify an equation in point-slope form the line parallel to y=-2/3x+8 that passes through(4, -5).
A. y+5=-2/3(x-4)
B. y-5=-2/3(x+4)
C. y+5=3/2(x-4)
D. y-4=2/3(x+5)
Answer:
The equation of line in point slope form is: [tex]\mathbf{y+5=-\frac{2}{3} (x-4)}[/tex]
Option A is correct option.
Step-by-step explanation:
We need to identify an equation in point-slope form the line parallel to y=-2/3x+8 that passes through(4, -5).
The general equation of point slope form is: [tex]y-y_1=m(x-x_1)[/tex]
where m is slope of the equation.
Finding slope of the equation.
Since the two lines are parallel so, both lines have same slope.
Equation of given line: y=-2/3x + 8
This equation is in slope-intercept form, comparing with general equation [tex]y=mx+b[/tex] where m is slope , we get the value of m= -2/3
So, slope of given line = m = -2/3
Slope of required line = m =-2/3
Now, writing equation in point-slope form:
We are given point (4,-5) so, we have [tex]x_1=4, y_1=-5[/tex] and slope is: m=-2/3
So, equation of line in point-slope form is:
[tex]y-y_1=m(x-x_1)\\y-(-5)=-\frac{2}{3}(x-4)\\y+5=-\frac{2}{3}(x-4)[/tex]
So, the equation of line in point slope form is: [tex]\mathbf{y+5=-\frac{2}{3} (x-4)}[/tex]
Option A is correct option.
Answer:
The answer is A.
Step-by-step explanation:
Which answer choice shows 21.97 written in expanded form? A. 2 + 1 + 9 + 7 B. 20 + 1 + 0.9 + 0.7 C. 20 + 10 + 0.9 + 0.07 D. 20 + 1 + 0.9 + 0.07
Answer:
20 + 1 + 0.9 + 0.07
Step-by-step explanation:
Given the number 21.97 ;
To wite in expanded form:
Tens ___ Unit ____ tenth ____ hundredth
2_______ 1 _______ 9_________ 7
2 = 20
1 = 1
9 = 0.9
7 = 0.07
Hence,
20 + 1 + 0.9 + 0.07