Answer:
24x²-30x+6
Step-by-step explanation:
multiply the parentheses
(8x-2)(3x-3)
calculate multiply
8x•3x-8x•3-2•3x-2•(-3)
collect like terms
24x²-30x+6
How do you do this equation?
2(m+7)= blank m+ blank
Use properties of operations to complete the equivalent expression.
Answer:
2m + 14
Step-by-step explanation:
2(m+7)
2m + 14
Please help..! Find x and y
Answer:
17
Step-by-step explanation:
10y+7x-29=10y+5x+5
7x-29=5x+5
2x-29=5
2x=34
x=17
What is the common denominator for 7 and 2
Answer:
14
Step-by-step explanation:
does anyone happen to know what the answer to this could be ?????
Answer:
B. $96
Step-by-step explanation:
Amount paid by Sandra for the boots
[tex] = 120 - \frac{20}{100} \times 120 \\ \\ = 120 - 24 \\ \\ = \$ 96[/tex]
Answer:
96 dollars
Step-by-step explanation:
the discount is 20% .this means that she will pay 80%
therefore 120×80\100%=$96
National statistics show that 23% of men smoke and 18.5% of women smoke. A random sample of 175 men indicated that 45 were smokers, and a random sample of 155 women surveyed indicated that 42 smoked. Construct a 98% confidence interval for the true difference in proportions of male and female smokers.
Answer:
98% C.I. = [-0.1270, 0.0994]
Step-by-step explanation:
Here
p1= proportion of men smokers
p1= 45/175= 0.2571
p2= proportion of women smokers
p2= 42/155= 0.2709
1) Choose the significance level ∝= 0.02
2) The formula for confidence interval is
(p1^- p2^)- z ∝/2sqrt( p1^(1-p1^)/n1 + ( p2^(1-p2^)/n2))
and
(p1^- p2^) z ∝/2sqrt( p1^(1-p1^)/n1 + ( p2^(1-p2^)/n2))
3) The z value is 2.05
4) Calculations:
(p1^- p2^)- z ∝/2sqrt( p1^(1-p1^)/n1 + ( p2^(1-p2^)/n2))
Putting the values
= 0.2571-0.2709)(-2.05) sqrt ( 0.2571(1-0.2571)/175+ 0.2709(1-0.2709)/155)
=-0.1270 ( using calculator)
And
(p1^- p2^)z ∝/2sqrt( p1^(1-p1^)/n1 + ( p2^(1-p2^)/n2))
Putting the values
= 0.2571-0.2709)(2.05) sqrt ( 0.2571(1-0.2571)/175+ 0.2709(1-0.2709)/155)
=0.0994 ( using calculator)
and Putting ± 2.05 in the confidence interval formula we get limits (-0.1270, 0.0994)
1.
[tex]16 \frac{3n}{4} \div 18 \frac{5n}{4} \times {4}^{n + 2} [/tex]
simplify
2.
[tex] {2}^{2y} = 6( {2}^{y)} - 8[/tex]
Find the value for y
3.
[tex] {2}^{2x + 1} - 15( {2}^{x}) - 8 = 0[/tex]
Solve the equation
I will mark you brainliest
Answer:
1. (5n^2 x4^n+2)/ 6
2. y=1 y=2
Step-by-step explanation:
If the probability of a cup drink being rasberry flavour is 0.29, what is the probability of a cup drink being cola flavour?
Answer: 0.71
Step-by-step explanation:
Since we have just two flavors, the probability of a cup drink being cola flavour will be calculated below:
P(R) + P(C) = 1
0.29 + P(C) = 1
P(C) = 1 - 0.29
P(C) = 0.71
Therefore, the probability of a cup drink being cola flavour is 0.71.
Estimate a 15% tip for a $26.40 restaurant bill
a) $1.50
b) $6.00
c) $8.00
d) $4.00
Answer:
$4.00
Step-by-step explanation:
because 15% of 26.40 is 3.96 which is closest to $4.00
427 is what percent of 305
Answer:
140.00%
Step-by-step explanation:
Step 1: Percentage Formula = Number1/Number2 x 100
Step 2: plugin the 427 and 305 to the percentage formula and we get 427/305 x 100 = 140%
What is
427
out of
305
as a percentage? = 140.00%
Hope this helped a lot
Plz give brainliest
In Las Vegas, a particular sports bet has about a 30% chance of winning. If the bet wins, the bettor will win 15
dollars. If the bet loses, the bettor will lose 10 dollars.
The expected return of placing one of these bets is -2.50 dollars.
Which of the following statements are true?
Choose all answers that apply:
The average return per bet from 2 of these bets must be exactly -2.50 dollars.
It is possible for a bettor to place 2 of these bets and win both of them.
If a bettor places a large number of these bets, they should expect to average a return of about
-2.50 dollars per bet.
Answer:
b and c
Step-by-step explanation:
i got it right on my khan academy
HELP ME. PLEASE !!! WILL MARK BRAINLIEST IF YOU HELP . and explain.
4x + 5y = -2 . what is the slope show ur work
4x + 5y = -2
-5 -5
4x = -5y - 2
4x/4 = -5y -2/ 4
x = -5/4 y + -1/2
b= (x+7) a= (x=1)=180 solve for angle a and b
b=(x+7)a=(x=1)=180 then 37
HELP PLEASE , I NEED THIS DUE IN 10 MINUTES AND IM SO CONFUSED
Answer:
p+37 = 2p-50
87
m<I=124
Step-by-step explanation:
Help ASAP nowwwwww
Please and thank you
Answer:
y = -1/2x + 5
Step-by-step explanation:
Parallel slope = -1/2
The y-intercept can't be the same so C is the only option
Answer:
C. y = -1 /2x + 5
Step-by-step explanation:
Hope this will help
PLZ HELP WILL GIVE BRAINLIST IF CORECT!!!
Answer:
w 2 x 6
Step-by-step explanation:
PLEASE ANSWER ALL BIG REWARD
Dilations involve ________ the scale factor and the pre–image ordered pair(s)? *
adding
dividing
subtracting
multiplying
All dilations produce _______. *
similar figures
vertical figures
congruent figures
supplementary figures
The rule to describe a dilation is written in _________. *
a list
scale factor
arrow notation
slope-intercept form
Which of the rules below would create a reduction/compression? *
(x, y) (–3x, –3y)
(x, y) (3.2x, 3.2y)
(x, y) (x + 9, y + 9)
(x, y) (0.23x, 0.23y)
Which of the following rules below do NOT represent a dilation? *
(x, y) --> (2x, 4y)
(x, y) --> (–8x, –8y)
(x, y) --> (1/2x, 1/2y)
(x, y) --> (3x, 3y)
(x, y) --> (1.2x, 1.2y)
In the diagram below, triangle ABC will be dilated with the origin as the center of dilation by a scale factor of 1/2. What will be the coordinates of A'? *
Captionless Image
(0, 3/2)
(12, 6)
(3, – 3/2)
(–1, –5/2)
A line segment with endpoints D (–6, –5) and E (3, –4) is dilated by a scale factor of 2. Which statement below is true? *
The line segment has become longer with endpoints D' (-12, -10) and E' (6 -8).
The line segment has become shorter with endpoints D' (-12, -10) and E' (6 -8).
The line segment has become longer with endpoints D' (-3, -5/2) and E' (3/2, -2).
The line segment stays the same length with endpoints D' (-3, -5/2) and E' (3/2, -2).
Write a rule to describe the dilation below. *
Captionless Image
(x, y)→ (1/2x, 1/2y)
(x, y)→ (1/3x, 1/3y)
(x, y)→ (3x, 3y)
(x, y)→ (2x, 2y)
If the scale factor k = 1/9 the resulting dilation will be a/an *
enlargement
reduction
If the scale factor k = 3 the resulting dilation will be a/an *
enlargement
reduction
Answer:
multiplying similar figures scale factor (x, y) (–3x, –3y) and (x, y) (0.23x, 0.23y) (x, y) --> (2x, 4y) Need diagramA. The line segment has become longer with endpoints D' (-12, -10) and E' (6 -8).Need imageReductionEnlargementgood luck, i hope this helps :)
Plzzzzzzzzzzzzzzzz helllppppppp meeeeeeeeee
Answer:
-1
Step-by-step explanation:
5 to the 2nd power is the same as 5 times 5... so, 24 - 25 is -1.
Graph each equation. Determine the solution of the system of equations. 0 Use the graphing tool to graph the system.
Answer:
First one is 4 and the second one is 0
Step-by-step explanation:
You go to the store to buy a Playstation 5 which cost 499 dollars. If you had to
pay San Jose's sales tax which is 9.25%. How would you solve the problem to find
the total cost? *
What is the total cost?*
Answer:
$545.1575
Step-by-step explanation:
Given function:
499,9.25Solve ways:
combine 9.25% of 499 and 499Multiply 9.25 by 0.01:
[tex]9.25%[/tex]·[tex]0.01=0.0925[/tex]Multiply the cost by 0.0925:
[tex]499[/tex]·[tex]0.0925= 46.1575[/tex]Combine 46.1575 by the first value:
[tex]499+ 46.1575= 545.1575[/tex]Therefore, the PlayStation 5 will be a total cost of $545.1575.
The list shows the mileage rating (in mpg) for some 2019 vehicles with all-wheel or 4-wheel drive.
11, 13, 14, 14, 15, 15, 15, 16, 16, 16, 17, 17, 17, 17, 18, 18, 18, 18, 19, 19, 19, 19, 20, 20, 20, 20, 20, 21, 21, 21, 21, 21, 21, 22, 22, 22, 22, 22, 23, 23, 23, 23, 23, 24, 24, 24, 24, 24, 24, 25, 25, 25, 26, 26, 26, 27, 27, 27, 28, 29, 30, 31, 32, 33, 34
Which interval has the greatest frequency?
10–15
15–20
20–25
25–30
Answer:
C
Step-by-step explanation:
Answer:
C
20-25
Step-by-step explanation:
Edge :3
Can someone help me find for x and y
[tex]\mathfrak{\huge{\orange{\underline{\underline{AnSwEr:-}}}}}[/tex]
Actually Welcome to the Concept of the Triangles.
Since there is a linear pair with 40° , the another angle will be 140° ,
also the triangle newly formed is a isosceles one,
hence x = 20°
===> x = 20°
Now apply angle sum property of a triangle on, the other one,
we get as, 70+40+y=180
hence, y = 180-110
y = 70°
Hence angle y ==> 70°
write an equation of the line that passes through (0 0) and (2 6)
Answer:
y = 3x
Step-by-step explanation:
Slope equation:
y2 - y1
--------
x2 - x1
----------------------------------------------------------------------------------------------------------------
6 - 0 6
m = ----------- = ----- = 3
2 - 0 2
Your slope is 3.
----------------------------------------------------------------------------------------------------------------
Equation:
y = mx + b
Plug in the slope and you get:
y = 3x + b
----------------------------------------------------------------------------------------------------------------
Now to find b, you can use either coordinate point. So I will show you both ways :)
(0,0) (2,6)
0 = 3(0) + b 6 = 3(2) + b
Multiply 0 and 3 Multiply 2 and 3
0 = 0 + b 6 = 6 + b
Subtract 0 to 0 Subtract 6 from 6
0 = b 0 = b
There is no y-intercept
----------------------------------------------------------------------------------------------------------------
Your answer: y = 3x
Hope this helped :)
PLEASE PLEASE HELP ME WITH MATH SO I PASS THIS YEAR!
Answer:
Step-by-step explanation:
since ∠PRS is supplemental with ∠VUW , that is the two angles add up to 180 degrees, you know that TV is parallel with QS
then the order of the answer from top to bottom are
1
2
5
6
4
3
SOMEONE PLSSSS HELP ME!!!!!!!!!!!!!!!!!!!!
Lindas aunt zoe charges her a nominal amount for watching her two children aunt zoe charges $2.50 per day plus $1.75 per hour one day linda paid her aunt $14.75 how many hours did aunt zoe watch the children
Answer:
7 hours
Step-by-step explanation:
the function of the earning of Zoe = 2.50 + 1.75h
2.5 = base fixed amount
1.75 varies based on the hours
h = hours
2.50 + 1.75h = 14.75
to solve for h
subtract 2.5 from both sides and then divide by 1.75
14.75 - 2.5 = 1.75h
12.25 = 1.75h
h = 7
Select all the values of x that make x + 3 > 5 true.
Answer:
D AND E
Step-by-step explanation:
PLEASE HELP WILL MARK BRAINLY
1. At the party, 65% of the children liked the chocolate cake. If 63 children did not like
chocolate cake, how many children were at the party in all?
2. While driving to Denver, the car travelled 1 mile per minute. How far would the car travel in 1 hour?
3. The team’s ratio of games won to games lost is 4 to 3. If the team played 42 games, how many did they win?
4. Cassie found that the ratio of bees to butterflies in the garden was 10 to 7. If there were 28 butterflies in the garden, how many bees were there?
5. Twenty thousand dollars in profit was made at the toy store during the holidays. This was five-ninths of the profit made by the store for the year.
a. The yearly profit made by the store was how much money?
b. How much profit was made during the rest of the year?
Answer:
1. At the party, 65% of the children liked the chocolate cake. If 63 children did not like
chocolate cake, how many children were at the party in all?
answer
answer35% 0f total children =63
answer35% 0f total children =63
total children =63×100/35=180
2. While driving to Denver, the car travelled 1 mile per minute. How far would the car travel in 1 hour?
answer
1 minute =1 mile travelled
1 hour =60minute=60mile travelled
3. The team’s ratio of games won to games lost is 4 to 3. If the team played 42 games, how many did they win?
answer
let ratio be 4x and 3x
4x+3x=42
x=42/7=6
won games =4x=4×6=24
4. Cassie found that the ratio of bees to butterflies in the garden was 10 to 7. If there were 28 butterflies in the garden, how many bees were there?
answer
let ratio be 10x and 7x
no of butterflies=7x=28
x=28/7=4
no of bees =10x=10×4=40
Which answer shows the number that point B represents on the graph? A) 2 1 4 B) 2 1 3 C) 2 1 2 D) 2 3 4° > −11°
Answer:
The answer is c
Step-by-step explanation:
Bc I said so answer is always c
Based on the equation 7x+42=y predict the number of customers to visit the frozen yogurt when it's 10 degrees
Answer:
112 visitors
Step-by-step explanation:
Given the prediction equation :
y = 7x + 42
x = temperature
y = number of visitors (customers)
Number of visitors when temperature is 10 degree
y = 7(10) + 42
y = 70 + 42
y = 112
Hence, the model predicts that 112 customers will visit when temperature is 10 degrees