Answer:
yes
Step-by-step explanation:
yes if you put -4 to the other side
i think so
A bookstore sells textbooks for $70 each and notebooks for $5 each. The bookstore would like to sell $805 in merchandise by the end of the week.
Enter a linear equation that describes the problem.
An equation for the value of the merchandise sold is = $805, where t is the number of te
Answer:
70x + 5y = 805
Step-by-step explanation:
Textbooks = X
Notebooks = Y
Please please help please help me help help me please help me
Answer:
m= -5/-3 (:
Step-by-step explanation:
Can someone please help me?
7x7x7x7
Answer:
2401
Step-by-step explanation:
use a calculator and this can also be written as 7^4
Answer:
2401
Figure out 7x7 then just multiply the answer by 2.
What will it cost to carpet a rectangular floor measuring 21 feet by 9 feet if the carpet costs $31. 29 per square yard?
Answer:
$657.09
Step-by-step explanation:
The area of the carpet is:
21 × 9 = 189 Square foot
189 foot² = 21 yard²
We know 1 yard² = $31.29
So 21 yard² = 21 × $31.29 = $657.09
Please help!!
1) Mark a central angle and calculate the measure of the central angle in the polygon below. *
Answer:
the measure of the central angle of a regular nonagon is 40 degrees.
Sarah is paid $20 an hour at her new job. She wishes to graph her total pay y, as a function of the number of hours, x. She wants to be sure her graph shows her pay for 10 and 20 hours of work.
Answer:
To best show this information, the scale for the T-axis of her graph should go from 0 to at least 400, and the h-axis of her graph should go from 0 to at least 20.
Step-by-step explanation:
I took the k12 test
Which of the following is true about these similar triangles?
Question 13 options:
AB/BC = BC/AB
AB/BC = DE/EF
AB/BC = DE/DF
AB/BC = BC/DF
Answer:c
Step-by-step explanation:
Answer:
c
Step-by-step explanation:
pls help answer this pls I mark pro pro pro brainlinest
Answer:
c, 48 cubic meters
Step-by-step explanation:
Answer:
The correct answer is C, which is 48 cubic meters.
Evaluate. 10/1·(−4) Enter your answer in the box.
I’ll give brainliest if its correct on the test! (And if i can figure out how)
Step-by-step explanation:
10/1(-4)
10(-4)
=-2.5 or 5/-2
What is the equation of the line that passes through the point (-3,4)(−3,4) and has a slope of 11?
Answer:
y=5x-11 is the equation of the required line
2/3x−1/6y=1/2
2x – 4y = 3
Answer:
30
Step-by-step explanation:
3x+6y=9
multiply by 2
6x+12y=18 ....(1)
-2x+-4y=4
multiply by 3
-6x-12y=12 ...(2)
add (1) and (2)
0+0=30
if a 1x1 foot tile costs 3.50 each ,how much will it cost mr teal?
Answer:
Hope this helps.
Step-by-step explanation:
When measuring for floor tile the rule is:
Length x Width + Waste = Amount Needed
Waste Factor will vary based upon tile size, layout, configuration of room, patterns, etc. Typical waste factor is about 10%. Add 15% for tile being installed diagonally or for a room with lots of jogs and corners. These installations will require more cuts and thus more waste.
please help !
Dante runs 7 miles in 60 minutes. At the same rate, how many miles would he run in 24 minutes?
miles
What expressions areequalivent to 6 x 4 1/2
Answer: 32 + 1 and 5 x 2
URGENT!!! Will MARK BRAINLIEST!!!
Select the correct answer.
What is the next step in solving this augmented matrix using the Gauss-Jordan elimination method?
OA.
Convert the matrix to the linear system form.
OB.
Divide R2 by 2 and R3 by 3.
OC.
The matrix is solved.
D.
This is an inconsistent matrix that cannot be solved.
O E.
Divide R1 by 2 and R3 by 3.
Answer:
B is the correct answer. I just took the test :))
Step-by-step explanation:
Option B is correct, Divide R₂ by 2 and R₃ by 3 is the next step in solving this augmented matrix using the Gauss-Jordan elimination method.
In the Gauss-Jordan elimination method, the goal is to transform the augmented matrix into row-echelon form and then into reduced row-echelon form to solve the system of linear equations.
To achieve this, we perform row operations on the matrix.
In the given augmented matrix:
[tex]\left[\begin{array}{ccc}1&0&0\\0&2&0\\0&0&3\end{array}\right] .\left[\begin{array}{c}5&8&9\end{array}\right][/tex]
We can divide R₂ (Row 2) by 2 and R₃ (Row 3) by 3 to simplify the matrix further we do this to make the leading coefficient (the number at the leftmost position in each row) of each row equal to 1, which is a requirement for row-echelon form.
After dividing R₂ by 2 and R₃ by 3, the augmented matrix becomes:
[tex]\left[\begin{array}{ccc}1&0&0\\0&1&0\\0&0&1\end{array}\right] .\left[\begin{array}{c}5&4&3\end{array}\right][/tex]
To learn more on Matrices click:
https://brainly.com/question/28180105
#SPJ2
420 is divided between george and Nancy in the ratio 2:3 Find who get more money.
Answer:
Nancy gets more, she gets 252 while George gets 168.
Step-by-step explanation:
420÷5=84
168:252
George:Nancy
Order from greatest to least. 5.249; 5.43; 5.340; 5.209
Answer:
5.43 > 5.340 > 5.249 > 5.209
Step-by-step explanation:
Answer:
5.43, 5.340, 5.249, 5.209,
Step-by-step explanation:
im in high school this is very easy for me. its right
The more numbers the more exact it is. Just because it has more numbers doesn’t mean it’s bigger. all decimals have infinite zeros after it. So if you have two twos after a decimal you have to go to the next number and see which one is less.
Find the value of EC.
D
13
12
17
E
B
C
EC = [?]
Enter
Answer:
Step-by-step explanation:
Will give brainliest for correct answer
In a triangle the sum of two sides is always greater than the third side.
9-9 < x < 9+9
0 < x < 18 ← answer
A car travels 374 meters in 17 seconds. A bus travels 414 meters in 23 seconds. Which vehicle is traveling faster? How much faster?
I think the car travels 4 meters more then the bus
Step-by-step explanation:
Distance traveled by bus in one second=414.23=18 meter. The Car travels faster. It travels 4 meters more in one second than the Bus.
What is the slope of the line created by this equation?
y = 10x+6
I need help getting started how do you do this
Answer:
Step-by-step explanation:
Well the answer is explained below.
PLEASE HELP
What is the value of the expression 12+23b when b=−5 ?
−176
−16
236
I don't know.
Answer: -103
Step-by-step explanation:
substitute in the value of B
12+23(-5)
multiply 23 and -5 together
12-115
solve
-103 is the answer
Answer:
-103
Step-by-step explanation:
Please help with an act geo practice!! Please explain why I need help
Answer:
Step-by-step explanation:
CD = 4sin30 = 4(1/2) = 2
∠BDC = 180 - 90 - 60 = 30°
BDcos30 = CD = 2
BD = 2/cos30 = 2/ (½√3) = 4/√3 = (4/3)√3
another way to do it would be
∠BDC = 180 - 90 - 60 = 30°
∠ADC = 180 - 90 - 30 = 60°
therefore
∠BDA = 60 - 30 = 30°
We can see the upper triangle is an isosceles triangle where lengths AB = BD and the angle between them is 180 - 30 - 30 = 120°
Using law of Sines
4/sin120 = BD/sin30
BD = 4sin30/sin120 = 4(½)/(½√3) = 4/√3 = (4/3)√3
or we could use the law of Cosines
c² = a² + b² - 2abcosC
BD² = AB² + 4² - 2(AB)(4)cos30
BD = AB = x
x² = x² + 4² - 2(x)(4)cos30
0 = 4² - 2(x)(4)cos30
4² = 2(x)(4)cos30
x = 4²/(2(4cos30)) = 2/cos30 = 2/ (½√3) = 4/√3 = (4/3)√3
A specific medicine decays at the rate of 18% per hour. If the initial dose is 600 mg, which function represents the
amount of medicine in a person's system over time
Answer:
120
Step-by-step explanation:
Answer:
Step-by-step explanation:
1.00 - 0.18 = 0.82
F(x) = 600(0.82)ˣ
where x is in hours.
and F(x) is in mg.
Find the volume of the rectangle in the picture
Answer:
Step-by-step explanation:
Volume = length * width * height
= (x + 1) *x *(3x + 5)
Multiply (x +1) and x
= (x*x + x*1) * (3x +5)
= ( x² + x) * (3x + 5)
= x²*(3x +5 ) + x(3x +5)
=x²*3x + x²*5 + x*3x + x*5
= 3x³ + 5x² + 3x² + 5x
= 3x³ + 8x² + 5x
krutika drives at a speed of 60 miles per hour. how long will it take to drive 210 miles
Answer:
3.5
Step-by-step explanation:
Hopes this helps
x × 20 = 80
x = ?
Help mee
x × 20 = 80
x = ?
Answer :x = 80 ÷ 20
x = 4
x = 4 ✔️
[tex]\large \color{red}\boxed{\bf Answer:}[/tex]
x × 20 = 80
20x = 80
x = 80÷20
x = 4
1. find measure of A.
2. find measure of B.
3. find measure of C
4. find measure of D
pls give picture and explanation
Answer:
Measure of angle A = 120°
Measure of angle B = 98°
Measure of angle C = 104°
Measure of angle D = 140°
Step-by-step explanation:
Find measure angle A :-Since the two straight lines are parallel
, then A + 12X =180° (alternate angles)
, then A = 180° - 12X
Since the two straight lines are parallel
, then measure angle A = measure angle (25X-5)°
(opposite angles)
, then 180° - 12X = 25X - 5° (solve it like a normal equation)
, then 180° + 5° = 25X + 12X
, then 185° = 37X
, then X = 185° ÷ 37
= 5
, then measure of angle A = 180° - ( 12 x 5 )
= 180° - 60°
, then measure angle A = 120°
Find measure angle B :-Since the two straight lines are parallel
, then measure angle B = measure angle 14X (corresponding angles)
, then 15X - 7 = 14X
, then 15X - 14X = 7
, then X = 7
Since X =7
, then measure angle B = (15 x 7) - 7
= 105° - 7
, then measure angle B = 98°
Find measure angle C :-Since the two straight lines are parallel
, then measure angle C = 8X
(opposite angles)
, then 5X + 39 = 8X
, 39 = 8X - 5X
, 39 = 3X
, then X = 39 ÷ 3
, X = 13
Since X = 13
, then measure angle C = (5 x 13) +39
= 65 + 39
, then measure angle C = 104°
Find measure angle D :-Since straight that angle D lies on = 180°
, then sum of measure of and D and 4X =
180°
, then (12X + 20) + 4X = 180°
, then 16X + 20 = 180°
, then 16X = 160° (resulting from 180° - 20°)
, then X = 10
Since X = 10
, then 12 x 10 + 20 = 120 + 20
,the measure angle D = 140°
Inverses of linear functions
Y+6=4(x-2)
Answer:
i do not know
Step-by-step explanation:
i really do not know
Angle ABC and angle BD are complementary.
The measure of angle ABC equals (3x + 4) degrees, and
the measure of angle CBD equals (5x +6). Find the measures of both angles.
Answer:7x
11x
Step-by-step explanation:
