Answer:
Function
Step-by-step explanation:
Answer:
A - Both answers are functions
Step-by-step explanation:
b.
Write this expression 20 x 20 x 20 x 20 x 20 using exponent
Answer:
Step-by-step explanation:
I don’t think I can type exponents here so I’ll write it and take a picture
Answer:
20 x 20 x 20 x 20 x 20= 3200000
20^6
Gina gets money from her grandfather every day for the entire week of her birthday, starting on Monday. She gets $2 on Monday, $4 on Tuesday, and the previous day's amount gets multiplied by 2 each day. Which of the following would represent how much money Gina would receive on Thursday?
Answer:
Gina would receive $16 equivalent to 2^4 on Thursday from her grandfather
Step-by-step explanation:
A. 2^5
B. 2^4
C. 2^3
D. 2^2
Gina gets:
Monday =$2 = $2^1
Tuesday =$4 = $2^2
Previous day's amount get multiplied by 2
Wednesday = Tuesday's amount × 2
= $4 × 2
= $8
= $2^3
Thursday = Wednesday's amount × 2
= $8 × 2
= $16
= $2^4
Gina would receive $16 equivalent to 2^4 on Thursday from her grandfather
Answer:
the answer is 2^4
Step-by-step explanation:
1 Let a = 5.2 and b = 4.7.
a Find the exact value of 3a + b3.
Xena estimates that the answer to part a is 140.
b Find the percentage error made by Xena in her estimation.
Part (a)
Replace every 'a' with 5.2 and replace every 'b' with 4.7
Then use your calculator to evaluate.
3a + b^3 = 3*5.2 + (4.7)^3 = 119.423
Answer: 119.423===============================================
Part (b)
The true value is 119.423 which is the result of part (a)
The estimated value is 140
Subtract the two values
140-119.423 = 20.577
and divide that over the true value
20.577/140 = 0.14697857142858
Which, when rounded to 4 decimal places, we get 0.1470
Move the decimal place over to the right 2 spots to get 14.70%
Answer: 14.70% error (approximate)I’ll give you 20 points if you help me
Answer:
f(g(x)) = 2x +(-5)
Step-by-step explanation:
Put the argument value into the function and simplify the result.
f(g(x)) = f(x -3) = 2(x- 3) +1 = 2x -6 +1
f(g(x)) = 2x +(-5)
Estimate the slope m of the line. (If an answer is undefined, enter UNDEFINED.)
Answer:
slope = - 3
Step-by-step explanation:
The slope m of the line is calculated as
m = [tex]\frac{rise}{run}[/tex] = [tex]\frac{-6}{2}[/tex] = - 3
c+d is the of c and d
Answer:
sum
Step-by-step explanation:
The sum of c and d is c+d.
What is the curved surface area of a cylinder with radius 8cm and height 15cm 754.29cm 574.92cm 354.29cm 624.29cm
Answer:
Below.
Step-by-step explanation:
This area = circumference of the base x height
= 2 * pi * 8 * 15
= 754.29 cm^2.
Answer:
The answer is 754.29cm^2
Step-by-step explanation:
radius= 8 cm
height= 15 cm
This is an area question
The formula to calculate the curved surface area will be,:
2 pile r times h which will be = to: 2 pile r h
2 x 22/7/3.14 x the radius which is 8 x height which is 15.
2 x 22/7 x 8 x 15 =
754.29 cm^2.
Okay.
Please save for x the. The perimeter
Answer:
x = 1
Step-by-step explanation:
The perimeter of the square is 4(2x + 3) = 8x + 12 and the perimeter of the triangle is 3x + 2(x + 3) + 5x + 4 = 10x + 10. Since they are equal, we can write:
8x + 12 = 10x + 10
-2x = -2
x = 1
Answer:
x =1Step-by-step explanation:
Perimeter of a square = 4(a)
Where a = side=2x+3
[tex]P = 4(a)\\P= 4(2x+3)\\Perimeter \: = 8x +12[/tex]
Perimeter of a triangle =
[tex]a +b +c[/tex]
[tex]3x + 2(x+3) +5x+4\\3x +2x +6 +5x+4\\Simplify\\: \\3x+2x+5x = 10x\\6+4 =10\\\\= 10x+10[/tex]
[tex]8x +12 = 10x+10\\Collect like terms\\8x -10x = 10-12\\-2x =-2\\Divide\:both\:sides\:of\:the\:equation\:by \:-2\\\frac{-2x}{-2} = \frac{-2}{-2} \\\\x = 1[/tex]
Olivia decides to hire an electrician. The electrician charges $35 to come out to Olivia's
home, and $60 an hour for work. This is modeled by
C (2) = 35+ 60x . Explain what C (5) = 335 means in terms of total cost and
number of hours.
help plz
Answer:
Step-by-step explanation:
Total cost
C (x) = 35+ 60x
Where,
Fixed cost= $35
Variable cost = 60x
x= number of hours of work
Total cost is the addition of fixed and variable cost
C (x) = 35+ 60x
C(5)= 35 + 60(5)
= 35 + 300
=335
C(5) = 335
C(5) = 335 is Olivia's total cost of hiring the electrician
x=5 is the electrician's number of hours of work
35= fixed cost of hiring the electrician
60(5) = 300 is the variable cost of hiring the electrician for 5 hours
In a small town, only 3 of the 10 stores
stay open after 5pm what percentages of stores close at 5pm?
A)30%
B)50%
C)65%
D)70%
Answer:
70%
Step-by-step explanation:
100%-30% = 70%
What are the coefficients in the expression, 2 + 6 + 10b – 8a?
Answer: 10 and 8
Step-by-step explanation: A coefficient is the number that comes before the variable. I hope this helps :)
The coefficients are the numbers to the left of the variable terms
10b is one variable term with the coefficient 10
-8a is the other variable term with the coefficient -8
The terms 2 and 6 are constants as they don't have any variables multiplied with them.
0.5x-7= 0.3 solve the equation
Answer:
[tex] \boxed{ \bold{ \boxed{ \sf{x = 14.6}}}}[/tex]Step-by-step explanation:
[tex] \sf{0.5x - 7 = 0.3}[/tex]
Move 7 to right hand side and change it's sign
⇒[tex] \sf{0.5x = 0.3 + 7}[/tex]
Add the numbers
⇒[tex] \sf{0.5x = 7.3}[/tex]
Divide both sides of the equation by 0.5
⇒[tex] \sf{ \frac{0.5x}{0.5} = \frac{7.3}{0.5} }[/tex]
Calculate
⇒[tex] \sf{x = 14.6}[/tex]
Hope I helped!
Best regards!!
After Luca took his dogs for a walk, he gave them 6 dog treats. When Luca's dad got home from work, he gave the dogs t more treats. All together that day, Luca's dogs got 10 dog treats. Write an equation to describe this situation. How many dog treats did Luca's dad give the dogs?
Answer:
6 + t= 10
4 dog treats
Step-by-step explanation:
Luca took his dogs out for a walk.
He gave his dogs 6 dog treats.
Luca's dad came back home that same day and gave the dogs "t" more treats
This means "t" more treats added to the initial 6 treats.
6 + t
All together that same day, Luca's dogs got a total of 10 treats
6 + t = 10
Hence the equation to describe this situation can be written as 6 + t= 10
The number of treats that Luca's dad gave to the dogs can be calculated as follows
6 + t= 10
t = 10-6
t= 4
Hence the number of treats that Luca's dad gave to the dogs is 4 treats
Find the area of the region enclosed by the graph of $x^2 + y^2 = 2x - 6y + 6$
Answer:
16π ≈ 50.27 square units
Step-by-step explanation:
The equation is that of a circle of radius 4. The area of a circle is given by ...
A = πr²
A = π(4²) = 16π ≈ 50.27 . . . . square units
_____
The equation can be put into the standard form for a circle to find its radius.
(x^2 -2x) +(y^2 +6y) = 6 . . . . collect variable terms on the left
(x^2 -2x +1) +(y^2 +6y +9) = 6 + 1 + 9 = 16 . . . . . complete the squares
(x -1)^2 +(y +3)^2 = 4^2 . . . . . the radius is 4
Compare to the form ...
(x -h)^2 +(y -k)^2 = r^2 . . . . circle of radius r centered at (h, k)
Line a is a perpendicular bisector of line segment K M. It intersects line segment K M at point L. Line a also contains point N. Line segment K L is 9 x +5. Line segment K N is 14 x minus 3. What is the length of segment LM? units
Answer:
The value of segment LM is 9x + 5.
Step-by-step explanation:
Consider the image below.
A perpendicular bisector is a line segment that bisects another line segment into two equal parts and is perpendicular to this line segment.
So from the diagram below we know:
KL = LM
line a is ⊥ to KM
∠NLK = 90°
Since the angle measure of ∠NKL is not provided we cannot determine the value of x.
So, the value of segment LM is 9x + 5.
The answer is 23 units. I got this answer right on this question, if this do help please tap the heart or comment that this helped you. : ) have a lovely day
Verify the identity. ( 1-sin x)/cosx=cosx/(1+sin x)
Answer:
See below.
Step-by-step explanation:
I'm going to use what I assume is the correct question.
[tex] \dfrac{1 - \sin x}{\cos x} = \dfrac{\cos x}{1 + \sin x} [/tex]
[tex] \dfrac{\cos x}{\cos x} \times \dfrac{1 - \sin x}{\cos x} = \dfrac{\cos x}{1 + \sin x} [/tex]
[tex] \dfrac{\cos x(1 - \sin x)}{\cos^2 x} = \dfrac{\cos x}{1 + \sin x} [/tex]
Now use the identity
[tex] sin^2 x + cos^2 x = 1 [/tex]
[tex] cos^2 x = 1 - sin^2 x [/tex]
We replace [tex] \cos^2 x [/tex] in the left denominator.
[tex] \dfrac{\cos x(1 - \sin x)}{1 - \sin^2 x} = \dfrac{\cos x}{1 + \sin x} [/tex]
Factor the difference of squares in the left side denominator.
[tex] \dfrac{\cos x(1 - \sin x)}{(1 + \sin x)(1 - \sin x)} = \dfrac{\cos x}{1 + \sin x} [/tex]
[tex] \dfrac{\cos x}{1 + \sin x} = \dfrac{\cos x}{1 + \sin x} [/tex]
Help me !!! Please
And explain me
Answer:
D
Step-by-step explanation:
Calculate the slope m using the slope formula
m = [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]
with (x₁, y₁ ) = (- 3, 5) and (x₂, y₂ ) = (-3, - 2)
m = [tex]\frac{-2-5}{-3+3}[/tex] = [tex]\frac{-7}{0}[/tex] ← undefined
Note that division by zero is undefined thas the slope is undefined.
This indicates that the line going through the 2 points is vertical and parallel to the y- axis.
Answer:
Undefined
Step-by-step explanation:
When you calculate he slope it ends up being a vertical line
-3+8x-5=-8 Choices: A. -2 B. -1 C. -3/4 D. 0
Answer:
D.0
Step-by-step explanation:
Im not sure if this is correct. I need help!
Answer:
Option 3
Step-by-step explanation:
If (x, y) is on h(x), then (y, x) is on the inverse.
Thus, if (4, 2) is on the inverse, then (2, 4) must be on the original. (Which it is not, so this option is incorrect)
If (0, 1/2) is on the inverse, then (1/2, 0) must be on the original. (It is not, so this option is also incorrect)
If (0, 1) is on the inverse, then (1, 0) must be on the original. (It is not, so this option is also incorrect)
If (-5, 1) is on the inverse, then (1, -5) must be on the original. (It is not, so this option is incorrect)
The correct answer would be the third option.
What is the value of [tex](8/3)+(-3)^2-(1/2)[/tex]? (Write your answer as a fraction in reduced form).
Answer:
Exact Form 67/6
Mixed Number Form 11 1/6
Step-by-step explanation:
Removed Parenthesis 8/3+(-3)^2-1/2
Group like terms 8/3 - 1/2 + (-3)^2
Apply the exponent rule 8/3 - 1/2 + 3^2
Find the LCM (least common multiple) of 3 & 2; 6
Adjust Fraction based on LCM 8/3 = 8*2/3*2 = 16/6 1/2 = 1*3/2*3 = 3/6
16/6 - 3/6
since denominators are equal combine the fraction [tex]\frac{16-3}{6}[/tex]
Subtract the numbers 3^2 + 13/6
3^2 = 9 = 9 +13/6
9*6/6 + 13/6
[tex]\frac{9*6 + 13}{6}[/tex] = 67/6
If it is 50 degrees outside and the temperature will drop 17 degrees in the next six hours, how cold will it get?
Answer:
it will drop to 33 degrees
Answer:
33 degrees
Step-by-step explanation:
Take the temperature and subtract 17 degrees
50 -17
33 degrees
Determine which package
of laundry soap is the better
buy: 65 oz. for $6.99 or
120 oz. for $12.99.
Answer:
The answer is $3.00
Step-by-step explanation:
None
Answer:
120 oz. for $12.99
Step-by-step explanation:
yegeheyeueu3hehueueu3h3he
How far does a train travel and 3.5 hours if it moves at an average speed of 35 miles /hours?
Answer:
d =122.5 miles
Step-by-step explanation:
We know the formula is
d= rt
d is distance r = rate and t is time
d = 35 miles per hour * 3.5 hours
d =122.5 miles
Answer:
122.5 miles traveled
Step-by-step explanation:
35 miles x 3.5 hours = 122.5 total miles traveled
FInd BD, Given FE=23.5 will mark Brainliest please answer ASAP
=================================================
Explanation:
Points B, C, and D are midpoints of triangle AFE. This is due to the similar tickmarks showing how the segments are congruent (eg: AB = BE).
Because we have D and B as midpoints, this means segment DB is a midsegment of triangle AFE.
FE = 23.5, so half that is (1/2)*FE = 0.5*23.5 = 11.75 which is the length of DB.
The midsegment DB is half as long as FE, and DB is parallel to FE.
If FE=23.5 in triangle AFE then BD=11.75.
What is triangle?A triangle is a two dimensional figure having three sides, three angles. Two triangles are said to be congruent if all the corresponding sides and corresponding angles are equal.
How to find length of a side?We have been given the length of FE=23.5 and we have to find the length of BD. From the figure we have found that B,C and D are mid points of triangle AFE. This is due to the similar signs shown in the figure showing how the segments are congruent. Because we have D and B are mid points, this means segment BD is a mid segment of triangle AFE.
Therefore BD=1/2* 23.5= 11.75.
Hence if the length of FE=23.5 then the length of BD=11.75.
Learn more about triangles at https://brainly.com/question/1058720
#SPJ2
¿Cuál es la suma de los ángulos 1 al 6 en este paralelogramo?
Answer:
Un paralelogramo es una forma plana con lados opuestos paralelos y de igual longitud.
Step-by-step explanation:
Los ángulos "a" y "b" suman 180 °, por lo que son ángulos suplementarios. NOTA: ¡Los cuadrados, rectángulos y rombos son todos paralelogramos
Espero que esto te ayude :)
I could really use some help with this problem. The file is attached below. Thanks!
Answer:
Step-by-step explanation:
8x³ + 2x² -20x - 5
= (8x³ + 2x²) + (-20x - 5)
= 2x² (4x + 1) + (-5)(4x + 1)
= (2x² - 5)(4x +1 )
PLEASE HELP!!!
Find the value of x.
A. 13 B. 9 C. 12 D. 10
Answer:
C. 12
Step-by-step explanation:
[tex] x \times 3 = 9\times 4[/tex]
[tex] x \times 3 = 36[/tex]
[tex] x = \frac{36}{3}[/tex]
[tex] x = 12[/tex]
Pls halp due today >_<. Thank you
Answer:
<
Step-by-step explanation:
Step 1: Evaluate 2√40
2√40 = 12.6491
Step 2: Evaluate 7 + √63
7 + √63 = 14.9373
Step 3: Fill in inequality symbol
12.6491 < 14.9373
What is the solution to y + 7 = -9 A. y = -16 B. y = -2 C. y = 2 D. y = 16
Answer:
A. y = -16
Step-by-step explanation:
Hello!
What we do to one side of the equation we have to do to the other.
y + 7 = -9
We have to get y by itself so we have to get rid of the seven by doing the opposite of what it says
The opposite of addition is subtraction so we subtract 7 from both sides
y + 7 - 7 = -9 - 7
Solve
y + 0 = -16
Simplify
y = -16
The answer is A. y = -16
Hope this helps!
Please help on 5 to be marked the brainliest
Answer:
3,200
Step-by-step explanation:
Answer:
4000
Step-by-step explanation:
3200 x 250 = 800,000 x 0.1 = 80,000
4000 x 250 = 1,000,000 x 0.1 = 100,000
4200 x 250 = 1,050,000 x 0.1 = 105,000
5000 x 250 = 1,250,000 x 0.1 = 125,000