Answer:
B) She should have included an exponent of 2 on the 3.
Step-by-step explanation:
Just took the test. Good luck!
is -3.16227766017 a rational or irrational number?
Answer:
rational
Step-by-step explanation:
If the given decimals are all there is, then you can express this number as a ratio (=fraction), i.e.,:
[tex]\frac{-316227766017}{100000000000}[/tex]
DeAnna had $23 to spend on two pencils. After buying them she had $17.
How much did each pencil cost?
Answer:
$3
Step-by-step explanation:
23-6=17 well 6÷2=3 so that means that it equals $3
3x + 2y=11 // 2x - 2y = 14 solve I substitution method
Hey there! I'm happy to help!
To solve by substitution, rearrange one of the equations for one of the variables.
3x+2y=11
Subtract 2y from both sides.
3x=11-2y
Divide both sides by 3.
x=11/3-2/3y
Now we plug this value of x into the second equation to solve for y.
2(11/3-2/3y)-2y=14
We use distributive property to undo the parentheses.
22/3-4/3y-2y=14
We combine like terms.
22/3-10/3y=14
We subtract 22/3 from both sides.
-10/3y=20/3
Divide both sides by -10/3.
y=-2
We plug this value into one of the equations to solve for x.
3x+2(-2)=11
3x-4=11
Add 4 to both sides.
3x=15
Divide both sides by 3.
x=5
So, the solution is x=5 and y=-2 or (5,-2).
Have a wonderful day! :D
PLEASE HELP< BEST ANSWER WILL GET MARKED BRAINIEST The stadium is at (-2,3) and the high schools (1,8). What is the shortest driving distance (in blocks) between these two locations? Can you figure this out without looking a the grid
Answer:
The shortest driving distance between stadium and high schools is 5.831 units.
A square rectangle has a length of 9.00 inches and a width of 4.25 inches. What is the area in square inches? Round to the correct significant digits.
Answer:
38.3
Step-by-step explanation:
multiply l x w to get your answer then just round. Hope it helps!!
Diane delivers newspapers for $5 a day plus $0.04 per
newspaper delivered. Jeremy delivers newspapers for $2 a
day plus $0.10 per newspaper delivered. How many
newspapers would Diane and Jeremy each need to deliver in order to earn the same amount?
30
75
83
50
Answer:
50
Step-by-step explanation:
For x number of newspapers, their earnings are:
D = 5 + 0.04x
J = 2 + 0.10x
5 + 0.04x = 2 + 0.10x
3 = 0.06x
x = 50
Teri,Jannae and Abi recieve £200,£350 and £450 respectively as their dividends in a joint investment
write the ratio of their dividends in its lowest terms
Answer:
4 : 7 : 9
Step-by-step explanation:
The ratio of their dividends is
200 : 350 : 450 ← divide each part by 50
= 4 : 7 : 9 ← in simplest form
If f(x)=12(4−x), then what is f(−6)?
Answer:
f(-6)= 120
Step-by-step explanation:
f(x)=12(4-x)
f(-6)=12(4-(-6))
f(-6)=12(10)
f(-6)=120
The product of a number and 7 decreased by 2
Answer:
(x× 7) -2
Step-by-step explanation:
(x× 7) -2
product of # = x
and 7 means to multiply
decreased by two means -2
Answer:
the product of a number and seven decreased by two is 7x-2
Step-by-step explanation:
a "product" is the answer to a multiplication problem. instead of writing a multiplication symbol (x) we can simply put the variable next to the number it is being multiplied to. (7x) so, a number (which can be written as any letter, since we don't know the exact number- it's a variable.) 7x decreased by 2 means subtracting. so, we get 7x-2.
hope this helps! best of luck <3
Use elimination to solve and match each system of equations to the correct solution.
2x-9y=-51
2x-3y=-9
I’ll mark brainliest to the first answer I get
[tex]\begin{cases}2x-9y=-51\\2x-3y=-9\end{cases}\\\\\\\begin{cases}(2x-9y)(-1)=-51(-1)\\2x-3y=-9\end{cases}[/tex]
[tex]\begin{cases}-2x+9y=51\\2x-3y=-9\end{cases}[/tex] (adding the second equation to the first one)
[tex]\begin{cases}\qquad6y=42\\2x-3y=-9\end{cases}\\\\\\\begin{cases}\qquad y=7\\2x-3y=-9\end{cases}\\\\\\\begin{cases}y=7\\2x-3(7)=-9\end{cases}\\\\\\\begin{cases}y=7\\2x-21=-9\end{cases}\\\\\\\begin{cases}y=7\\2x=12\end{cases}\\\\\\\begin{cases}x=6\\y=7\end{cases}[/tex]
53, -82, 103, -7, 22, 0 in ascending order
Answer:
-82, -7, 0, 22, 53, 103
Step-by-step explanation:
smaller to bigger
Explain what mistake is made in the following false statement: 3(x+4)(x+7)=(3x+12)(3x+21)
Answer: The 3x+21
Step-by-step explanation:
3(x=4) = (3x+12) The (3x+12) is being multiplied by (x+7) and the 3 should only be distributed to (x+4) which meant the the equation when simplified should have become (3x=12)(x+7).
or each hour he babysits, Anderson earns $1 more than half of Carey’s hourly rate. Anderson earns $6 per hour. Which equation can be used to solve for Carey’s hourly rate, c?
Answer:
6=[tex]\frac{c}{2}[/tex]+1
Step-by-step explanation:
anderson's $6 per hour is one half of carey's hourly rate, plus one.
Answer:
A)
6 = c/2 + 1
Step-by-step explanation:
edg2020
2. |X-6|+ 1 =- 2x + 4
Answer:
i dont understand the question you are asking
Step-by-step explanation:
Find the slope of the following lin
y = 4x
Gradient = slope
Gradient = 4
what is the LCM of 25 and 35
Answer:
175
Step-by-step explanation:
Robert had $58.62 in his bank account. He got paid $142.76. He then bought a new jacket for $63.76. He also bought 2 new movies for $6.99 each. He then babysat for his sister and was paid $12. How much money does Robert have now?
Please help me ASAP 100 PTS
Answer:
The second choice
Step-by-step explanation:
Perimeter is calculated by adding the length and width but multiplied by 2. You add 3.2 and 1.5 and get 4.7. Multiply 4.7 by 2 would give you 9.4.
Area is multiplying the length and width. 3.2 multiplied by 1.5 would be 4.8
The answer is B.P=9.4 m, A 48m^2
What is the value of n |n|=5
Answer:
N x lNl=5 answer is -5
Step-by-step explanation:
Took the test today
Answer:
Step-by-step explanation:
helpppp please... need to get this doneeee
Answer:
if this is iready
Step-by-step explanation:
the answer is
the third one
Please Help! 7+b=b+7
Answer:
Yes, 7+b=b+7
Step-by-step explanation:
It is correct because the both are the same equation; however, the numbers and variables are just switched around. Therefore, that doesn't change the value of the equation.
Hope this helps!
Answer:all real numbers are solutions
Step-by-step explanation:
train can travel 1136 miles in 4 hours. What is the unit rate that this train is traveling per hour
Answer:
4544
Step-by-step explanation:
1136 *4 = 4544
find the domain of f(x)=5x/x-2
Hey there!
ANSWER:Interval Notation: [tex](-[/tex]∞[tex],0)[/tex]∪[tex](0,[/tex]∞)
EXPLANATION:[tex]f(x)=\frac{5x}{x}-2[/tex]
Interval Notation: [tex](-[/tex]∞[tex],0)[/tex]∪[tex](0,[/tex]∞[tex])[/tex]
Hope this helps!
[tex]\text {-TestedHyperr}[/tex]
1. Order the steps to show how to solve the equation2(4x − 11) + 9 = 19
Divide each side by
Divide each side by
Add 11 to each side.
Subtract 9 from each side.
2. Solve the equation. 10x + 2 = 32 x =
3. Solve the equation. 19 − 4c = 17 c =
4. solve the equation. 1.1x + 1.2x − 5.4 = −10 x =
6. solve the equation. 6(5 − 8v) + 12 = −54 v =
Answer:
Question: 1
Subtract 9 from each side.
Divide each side by 2
Add 11 to each side.
Divide each side by 4
Question: 2
10x +2 = 32
10x = 30
x = 3
Question: 3
19 -4c = 17
-4c = -2
c = 1/2 or 0.5
Question 4:
1.1x + 1.2x -5.4 = -10
2.3x = -4.6
x = -2
Question: 6
6(5 − 8v) + 12 = −54
6( 5 - 8v ) = -66
( 5 - 8v ) = -11
-8v = -16
v = 2
Step-by-step explanation:
A cylinder has a circular base radius 14cm and height of 10cm.Find the total surface area of the cylinder. [take pie 22/7] *
Answer:
ii) curved surface area =2 pie rh
2*22/7*14*21
1548 cm2
iii) total surface area=2 pie r(r+h)
2*22/7*14(14+21)
2780
iv) volume of cylinder=pie r2h
22/7*14*14*21
12936 ans
Step-by-step explanation:
Answer:
As = 2112 cm²
Step-by-step explanation:
given:
A cylinder has a circular base radius 14cm and height of 10cm.
find:
the total surface area of the cylinder. [take pie 22/7] *
solution:
surface area (As) = 2πrh + 2πr²
where r = 14 cm; h = 10 cm; π = 22/7
plugin values into the formula:
As = 2 (22/7) 14 (10) + 2 (22/7) 14²
As = 880 + 1232
As = 2112 cm²
Priya starts with $50 in her bank account. She then deposits $20 each week for 12 weeks.
Write an equation that represents the relationship between the dollar amount in her bank
account and the number of weeks of saving.
O 50w + 20 -T
20w - 50 -T
O 50 + 20w -T
O 50w - 20-T
Question 1 is points) If point A is (3.1). What is it's new position after x --> {X-3. y - 1). 0 (0.0) (62) (2-2) 01-3-1)
Answer:
(0,0), or A
Step-by-step explanation:
Given the function { x - 3, y - 1 }:
[tex](3 -3, 1-1)=(0,0)[/tex]
The definition of parallel lines requires the undefined terms line and plane, while the definition of perpendicular lines requires the undefined terms of line and point. What characteristics of these geometric figures create the different requirements?
Answer:
Parallel lines requires the terms line and plane because line and plane that are parallel cannot cross each other therefore they will never make a point of intersection. The characteristics of that parallel lines consists of lines and planes. Perpendicular lines requires the terms line and point because whenever two lines intersect, it creates a point and whenever two planes intersect, it creates a line. The characteristics of that perpendicular lines are points and lines.
The characteristics of the geometric figures that create the different requirements are;
Parallel lines are lines on the same plane and that are equidistant from each otherPerpendicular lines are lines that form a 90 degree angle at the point of their intersection.Reasons:
The characteristics of parallel lines are;
The shortest distance between the lines that are parallel is the same at all points along the lines.The lines are on the same plane.As the plane is extended indefinitely, the lines do not intersect.The characteristics of perpendicular lines are;
Perpendicular lines are lines that intersect at a point.Where two lines are perpendicular, the slope of one line is the negative reciprocal of the other, such that the product of the slopes of two lines that are perpendicular is -1.The angle formed at the intersection of perpendicular lines is 90°.An horizontal and a vertical line on the same plane are perpendicular to each other.Therefore, the characteristics of the geometric figures that create the different requirements are;
Parallel lines are lines on the same plane.Perpendicular lines are lines that form a 90 degree angle at the point of their intersection.Learn more about parallel and perpendicular lines here:
https://brainly.com/question/24607467
https://brainly.com/question/10253775
a high school football player is practicing his frield goals kicks. The equation h=-9t²+45t where t is the number of seconds gone by and h is the height of the ball in feet. how long does it take for the ball to hit the ground
h = -9t^2 + 45t
First, let's factor the equation.
h = -9t(t - 5)
Let's set both terms equal to zero.
-9t = 0
Divide both sides by -9
t = 0
t - 5 = 0
Add 5 to both sides.
t = 5
We know that it took more than 0 second sto hit the ground, therefore, the only answer that makes sense is t = 5
It took 5 seconds for the football to hit the ground.
7x + 2x - 3x idk it give me a hand
Answer:1x
Step-by-step explanation:
Answer:
the answer is 6x