Answer:
x<-2
Step-by-step explanation:
move the constant to the right
calculated it
divide both sides then you get the answer
HURRY! I NEED THIS ANSWER FAST!!!!
What is the surface area of a cylinder with the given dimensions? Express your answer to nearest hundredth. Use 3.14 for pi. Radius = 8 cm.; Height = 12 cm.
Please select the best answer from the choices provided
A. 980.45 sq. cm
B. 1280.34 sq. cm
C. 876.34 sq. cm
D. 1004.80 sq. cm
Pleasssseeeee helppppp
1)4÷30=7.5 2) 5÷10=2
7.5×4=30 (a)x=7.5 2×5=10 x=2
pls i need brainiest
Learn with an example
9
Find the slope of the line y = x
x-
Simplify your answer and write it as a proper fraction, improper fraction, or integer.
Submit
Work it out
Not feeling ready yet? This can help:
Answer:
1Step-by-step explanation:
The standard form of linear equation of a line is expressed as;
y = mx+c
m is the slope
c is the y - intercept
Compare with the given equation
mx = x
m = x/x
m = 1
Hence the slope of the line is 1
25 points help me pls
Answer:
The first one is x=-y-2z-7
The second one is x=-1/3y + 1/3z + -4/3
The third one is x= 3y + 2z + 17
Can the following question be represented by 1/2x5
Diego lives 5 miles from school and Elena lives 1/2 as far as Diego how many miles does Elena live to go?
Please explain your answer
Answer:
yes it can be represented by 1by2×5
Answer:
yes
Step-by-step explanation:
because it can
What is a algebraic expression and how is it different from and equation?
Answer:
An expression is a number, a variable, or a combination of numbers and variables and operation symbols. An equation is made up of two expressions connected by an equal sign.
Step-by-step explanation:
Your friend graphs the function represented by the input-output table. Is your friend correct? Explain your reasoning.
Answer:
Incorrect.
Step-by-step explanation:
My friend is incorrect because the input values was plotted along the y-axis while the output values were plotted along the x-axis, which makes the graph totally incorrect.
The right way to plot the graph is to plot the input-values on the x-axis, while the corresponding output values should be plotted on the y-axis.
Match each of 1 -6 with its appropriate definition from the list A - F below.
1. Axiom
2. Corollary
3. Contradiction
4. Tautology
5. Theorem
6. Lemma
a. An elementary mathematical truth that is assumed self-evident and not in need of proof.
b. A theorem that is an immediate consequence (and perhaps special case) of another theorem.
c. A proposition that is always false.
d. A proposition that is always true.
e. An important true mathematical statements.
f. A theorem that is needed as a stepping stone to prove a greater theorem.
Answer:
1. Axiom
Appropriate definition: An elementary mathematical truth that is assumed self-evident and not in need of proof (a).
2. Corollary
Appropriate definition: A theorem that is an immediate consequence (and perhaps special case) of another theorem (b).
3. Contradiction
Appropriate definition: A proposition that is always false (c).
4. Tautology
Appropriate definition: A proposition that is always true (d).
5. Theorem
Appropriate definition: An important true mathematical statements (e).
6. Lemma
Appropriate definition: A theorem that is needed as a stepping stone to prove a greater theorem (f).
What is M<1? Please help me
Answer:
Step-by-step explanation:
A remote interior angle is one that shares only 1 leg with the exterior angle. Every triangle has 2 remote interior angles for each exterior angle.
<1 is a remote interior angle
81 is 1 remote interior angle
127 is an exterior angle
<1 + 81 = 127 Subtract 81 from both sides
<1 = 127 - 81
<1 = 46
If three burgers and two fries cost 17.50, and two burgers and three fries cost 15.00, how much does a burger cost?
Answer:
4.50
Step-by-step explanation:
If you use x for burgers and y for fries:
1) 3x+2y=17.50
2) 2x+3y=15
You can then do a simultaneous equation by multiplying the first equation by 1.5 to cancel out the y (fries) to get x (burgers) on its own
1) 4.5x+3y=26.25
2) 2x+3y=15
By subtracting the two equations you get 2.5x=11.25
Then divide 11.25 by 2.5, you get x =4.5 so a burger is 4.50
A burger cost 4.50.
Let the cost of a burger be x.
Let the cost of a fries be y.
Since three burgers and two fries cost 17.50, this will be:
3x + 2y = 17.50 ......... i
Since two burgers and three fries cost 15.00, this will be:
2x + 3y = 15.00 .......... ii
Therefore, both equations will be:
3x + 2y = 17.50 ...... i
2x + 3y = 15.00 ....... ii
Multiply equation i by 2
Multiply equation ii by 3
6x + 4y = 35.00 ....... iii
6x + 9y = 45.00 ....... iv
Subtract equation iii from iv
5y = 10.00
y = 10.00/5
y = 2.00
Therefore, the cost of a frie is 2.00
Since the value of a frie has been gotten, it can be put into any of the equation. Using the equation:
3x + 2y = 17.50
3x + 2(2.00) = 17.50
3x + 4.00 = 17.50
3x = 17.50 - 4.00
3x = 13.50
x = 13.50/3
x = 4.50
Therefore, a burger cost 4.50.
A mortgage is in the amount of $400,000. The origination fee is 0.2%, the intangible tax is 0.4%, and there are 1.9 discount points. Which of the
following is the total cost of the origination fee, intangible tax, and discount points?
$9,200
$10,000
$7,600
$2,400
Someone please help me :(
Answer:
Total cost of All fee = $10,000
Step-by-step explanation:
Given:
Mortgage amount = $400,000
Origination fee = 0.2%
Intangible tax = 0.4%
Discount point = 1.9
Find:
Total cost of All fee
Computation:
Total cost of All fee = (Mortgage amount)(Origination fee) + (Mortgage amount )(Intangible tax) + (Mortgage amount )(Discount point)
Total cost of All fee = ($400,000)(0.2%) + ($400,000)(0.4%) + ($400,000)(1.9/100)
Total cost of All fee = $800 + $1,600 + $7,600
Total cost of All fee = $10,000
Which set of ordered pairs does not represent a function?
O{(-6,-9), (-2, -3), (-9, 2), (2, -3)}
O {(-2,0), (-5,8), (7,9), (6,8)}
O {(6,9), (-7,8), (1, -4), (8,8)}
{(-2,-6), (-1,2), (-2, -7), (6,6)}
Answe thanks
Step-by-step explanation:
hugo sells handmade key chains online. Yesterday he made 6 keychains in 30minutes. hugo wants to make 9 keychains today . if hugo works at the same rate today how long will it take him to make the keychains
Answer:
45 minutes, hope this helps
Step-by-step explanation:
Answer:
45 minutes.
Step-by-step explanation:
Set up a ratio.
6 keychains: 30 minutes
divide both sides of the ratio by 6
1 keychain: 5 minutes
multiply both sides of the ratio by 9
9 keychains: 45 minutes
It will take him 45 minutes.
Madison Plans to walk and run a total of 1 4/5 mi on a treadmill. She has already walked 2/5 mi and plans to run the rest of the distance. Madison wants to know the distance she needs to run. Let r be the distance in miles that Madison needs to run. Describe this situation in an equation. Pls I need help on this. This is Iready.
Answer:
its 1 4/5 = 2/5 + r
Step-by-step explanation:
The distance in miles that Madison needs to run is [tex]1 \frac{2}{5}[/tex] miles.
What is an equation?In mathematics, an equation is a formula that expresses the equality of two expressions, by connecting them with the equals sign =.
Given that, Madison Plans to walk and run a total of [tex]1\frac{4}{5}[/tex] =9/5 miles on a treadmill.
Let r be the distance in miles that Madison needs to run.
Now, the equation is
2/5 +r =9/5
r= 9/5 - 2/5
r =7/5
r = [tex]1 \frac{2}{5}[/tex] miles
Therefore, the distance in miles that Madison needs to run is [tex]1 \frac{2}{5}[/tex] miles.
To learn more about an equation visit:
https://brainly.com/question/14686792.
#SPJ2
CAN SOMEONE PLEASE HELP ME WITH #12 and #13 and if they are correct I will give you brainliest
Answer:
12. parallel, 13. perpendicular
Step-by-step explanation:
Find the slope of both lines
AB:(6-3)/(2--2)=3/4
CD:(3-0)/(3--1)=3/4, the slope is the same so the lines are paralell
2. DO the same thing
AB:(4-2)/(5-0)=2/5
CD:(3-8)/(3-1)=-5/2, the slopes are opposite inverses so they are perpendicular
Answer:
1. parallel
2. perpendicular
Find the area of each shaded region each outer polygon is regular
See the picture
Answer:
Area of the shaded region = 3.46 square units
Step-by-step explanation:
Measure of the interior angle of a regular polygon = [tex]\frac{(n - 2)\times180}{n}[/tex]
From the picture attached,
Number of sides of the given polygon 'n' = 6
Interior angle (∠BAF) of the given polygon = [tex]\frac{(6 - 2)\times 180}{6}[/tex]
= 120°
Measure of ∠BAC = [tex]\frac{120}{4}[/tex]
= 30°
Now we apply sine rule in ΔAGB,
sin(30°) = [tex]\frac{\text{Opposite side}}{\text{Hypotenuse}}[/tex]
= [tex]\frac{BG}{AB}[/tex]
BG = AB[sin(30°)]
= [tex]2\times \frac{1}{2}[/tex]
= 1
By applying cosine rule in ΔABG,
cos(30°) = [tex]\frac{\text{Adjacent side}}{\text{Hypotenuse}}[/tex]
= [tex]\frac{AG}{AB}[/tex]
AG = AB[cos(30°)]
= [tex]2\times \frac{\sqrt{3} }{2}[/tex]
= [tex]\sqrt{3}[/tex]
AC = 2(AG)
= 2√3
Area of ΔABC = [tex]\frac{1}{2}(\text{Base})(\text{Height})[/tex]
= [tex]\frac{1}{2}(AC)(BG)[/tex]
= [tex]\frac{1}{2}(2\sqrt{3} )(1)[/tex]
= [tex]\sqrt{3}[/tex]
Area of the shaded region = Area of ΔABC + Area of ΔFED
= 2(Area of ΔABC)
= 2√3
= 3.46 square units
12+20/x = 10 solve for x
Answer: x=−10 ..,.,.,.,.,.,.,..,.,.,
An urban planner examines police-report data for many cities and towns and discovers that cities with professional football teams tend to have higher numbers of reported small crimes, such as burglary.
Which statement best explains the effect of confounding in this relationship?
A.) The football teams are a direct cause of increased small crimes.
B.) In cities without football teams, the small crimes often go unreported.
C.) Cities without football teams most likely have lower rates of reported small crimes.
D.) Cities with football teams tend to be large, which means they have more reported small crimes.
Answer: The answer is D
Step-by-step explanation:
Answer:
D) Cities with football teams tend to be large, which means they have more reported small crimes.
Step-by-step explanation:
Confounding refers to the phenomenon in which an apparent relationship between two variables is actually caused by the influence of a third, confounding variable. In this case, it is possible that the relationship between the presence of a football team and the number of reported small crimes is confounded by the size of the city. It is possible that cities with football teams tend to be larger, and larger cities generally have more reported small crimes, regardless of whether they have a football team. This could explain the apparent relationship between football teams and small crimes. It is important for researchers to consider and control for potential confounding variables in order to accurately interpret the relationships between variables in their study.
Which is greater, 5/6, 7/8 or 5/8?
Answer:
5/6 is greater
Step-by-step explanation:
Use the formula y = Kx to find K when:
a. x = 3, y = 21 , K =
b. x = 4, y = 24, K =
Step-by-step explanation:
a.
[tex]y = kx \\ 21 = k \times 3 \\ 21 \div 3 = \frac{(k \times 3)}{3} \\ 7 = k[/tex]
b.
[tex]y = kx \\ 24 = k \times 4 \\ \frac{24}{4} = \frac{(k \times 4)}{4} \\ 6 = k[/tex]
A total of 450 tickets were sold for the school play. They were either adult tickets or students tickets. There were 50 fewer students tickets sold than adult tickets. How many adult tickets were sold?
9514 1404 393
Answer:
250
Step-by-step explanation:
Let 'a' represent the number of adult tickets sold. Then a-50 is the number of student tickets sold. The total number is ...
a + (a -50) = 450
2a = 500 . . . .simplify, add 50
a = 250 . . . . . divide by 2
250 adult tickets were sold.
find the perimeter of a rectangle if one of its sides is 14 and the area is 98
Answer:
42
Step-by-step explanation:
Area of a rectange = bh so 98=14x
98 divided by 14 = 7
Perimeter= 2x+2y
so 2x+2y -> 28+14=42
Solve for x. 3(2x-1)+7=46. What’s x?
Answer:
The correct answer is,
[tex]x = 7[/tex]
Answer:
x= 7
Step-by-step explanation:
3(2x‐1) + 7 = 46
6x‐3+7= 46
6x+4= 46
6x = 42
x=42/6
x=7
write an equation in slope intercept form for the line with slope 2 and y intercept -4
Answer:
y= 2x-4
Step-by-step explanation:
what is x? if u can’t see it the 2 other degrees are 32 and 120
Answer:
x = 58
Step-by-step explanation:
trust me i got the same question today on khan and apparently i accidently pressed next
so...
the person that answered first had the right set up but miscalculated
anyway...
you have to subtract on both sides because 32 was positive and two different signs would be 0:
x+32 = 90 degrees
-32 -32
then 32 and -32 gets crossed out and then you do
90-32 = 58
you subtract because different signs...
therefore:
x=58
here's another way to solve it:
We simplify the equation to the form, which is simple to understand
x+32=90
We move all terms containing x to the left and all other terms to the right.
+1x=+90-32
We simplify left and right side of the equation.
+1x=+58
We divide both sides of the equation by 1 to get x.
x=58
Hope this helps
brainiest would be appreciated :)
The graph plots four equations, A, B, C, and D: Line A joins ordered pair negative 6, 16 and 9, negative 4. Line B joins ordered pair negative 2, 20 and 8, 0. Line C joins ordered pair negative 7, negative 6 and 6, 20. Line D joins ordered pair 7, 20 and 0, negative 7. Which pair of equations has (0, 8) as its solution? (4 points) Equation A and Equation C Equation B and Equation C Equation C and Equation D Equation B and Equation D
Answer:
d is 6,6 and 4,is -94 and plus 8
Step-by-step explanation:
Today Christina is carrying her history textbook and her lunch in her backpack. If the history textbook weighs 1/10 of a pound and her lunch weighs 4 1/10 pounds, how much weight is in Christina's backpack?
Answer:
5/10 pounds just add 1 + 4 ( i think )
Answer:
42/10 or 4 2/10 is the answer
Step-by-step explanation:
Hope this Helps! :)
Mr. Lewis is having the exterior of his house painted. The painters charge $35 per hour plus the cost
of materials. After 20 hours of work, Mr. Lewis owes the painters $840. Which equation represents
this situation?
A
840 = 35 x + 20
B
840 = 35 x + 45
C
y =mx
D
20=840 x + 20
Answer:
A i think
Step-by-step explanation:
can someone help me with this problem
Choose correct y intercept of the exponential function f(x)=8(0.25)^x
Answer:
( 0 , 8)
Step-by-step explanation:
The y-intercept is when the graph intersects the y axis, in other words, when x is zero. Hence substitute 0 in for x
f ( x ) = 8 [tex]( 0.25 )^{x}[/tex]
f ( 0 ) = 8 [tex](0.25)^{0}[/tex]
Any number to the power zero is one;
f ( 0 ) = 8 * 1
f(0) = 8
The y-intercept is 8.
