Answer: A proportion can be solved to relate the sample to the population and solved to form an estimate.
Step-by-step explanation:
I’m confused on this question
Answer:
percent will be
65÷90×100which the answer will be
72.2%Step-by-step explanation:
hope it helps
PLEASE HELP QUICKLY!!!!!! ILL GIVE BRAINLIEST
Which equation could be solved using this application of the quadratic formula?
Answer:
Step-by-step explanation:
A.) x² + 1 = 2x − 3 Make the equation into ax² + bx + c = 0. Subtract 2x on both sides, and add 3 on both sides to set the equation equal to 0
x² + 1 - 2x + 3 = 2x - 2x - 3 + 3
x² - 2x + 4 = 0
a = 1
b = -2
c = 4 This is not the answer because b = 2 not -2, and c = -4 not 4
B.) x² - 2x − 1 = 3 Subtract 3 on both sides to set the equation = 0
x² - 2x - 4 = 0
a = 1
b = -2
c = -4 This is not the answer because b = 2 not -2
C. x² + 2x - 1 = 3 Subtract 3 on both sides to set the equation = 0
x² + 2x - 4 = 0
a = 1
b = 2
c = -4 This is your answer
D. x² + 2x - 1 = -3 Add 3 on both sides to set the equation = 0
x² + 2x + 2 = 0
a = 1
b = 2
c = 2 This is not the answer because c = -4 not 2
Hope this helps :)
A greeting card cost four dollars before tax. A customer has a 15% discount. Then the 5% sales tax is added. How much will the customer pay for the card?
Given:
Greeting card cost before tax = $4
Discount = 15%
Sales tax = 5%
To find:
How much will the customer pay for the card?
Solution:
It is given that the cost of the greeting card before tax is $4.
After 15% discount, the cost of the greeting card is:
Cost of card after discount [tex]=4-\dfrac{15}{100}\times {4}[/tex]
[tex]=4-0.6[/tex]
[tex]=3.4[/tex]
The cost of card after 5% sales tax is:
Cost of card after tax [tex]=3.4+\dfrac{5}{100}\times 3.4[/tex]
[tex]=3.4+0.17[/tex]
[tex]=3.57[/tex]
Therefore, the customer will pay $3.57 for the greeting card.
How do i get my grade up in algebra 1 honors? i am in middle school taking the class early and i dont wanna fail
Answer:
just do the assignments get help when neccesary ask the teacers if they have any extra credit materials
Step-by-step explanation:
Find the percent of change. Round to the nearest tenth of a percent if necessary.
Answer:
What’s the percent Lol
Step-by-step explanation:
Help plz!!
what is number 5 and 8?
Answer:
x=21
Step-by-step explanation:
for number 5 i think thats the awnser
helppppp PLSSSSSSSSS lol
Answer:
C
Step-by-step explanation:
-7 + 3 = -4
x > -4
=
How many triangles can be constructed with side lengths of 4, 8, and 13?
A. 0
B. 1
C. More than 1
Answer:
yeah i dont know i want my points xd 494 4944
Step-by-step explanation:
Find the find the area and the circumference of the circle round your answer to the nearest hundredth
Answer:
area = 452.39 square units
circumference = 75.40 square units
Step-by-step explanation:
area = [tex]\pi r^{2}[/tex]
r = 12
452.389
circumference = [tex]\pi *d[/tex]
d = 2r
r = 12
d = 24
75.398
A pack of 8 batteries costs £4.99.
How much does each battery cost?
Give your answer to the nearest penny.
Answer:
0.62
Step-by-step explanation:
4.99/8=0.62
LCM of the following 5,8,4
Answer:
40
Step-by-step explanation:
5 x 8 = 40
8 x 5 = 40
4 x 10 = 40
Answer:
40
Step-by-step explanation:
5: 5, 10, 15, 20, 25, 30, 35, 40
8: 8, 16, 24, 32, 40
4: 4, 8, 12, 16, 20, 24, 28, 32, 36, 40
4x - 7y = -40
3x - 2y = -4
HELP ASAP WILL MARK BRAINLIEST
Answer:
1.
A- about 43.98
B- about 17.59
C- 32.99
Step-by-step explanation:
Answer:
1) 43.98
2) 17.59
3) 32.99
Step-by-step explanation:
hopefully they’re all right
What are the roots of the equation 2x2 - 6x + 3 = 0?
Answer:
Step-by-step explanation:
Answer:
Step-by-step explanation:
The given possible roots have the form that we'd get by using the quadratic formula, so let's start with that. Here the coefficients are {2, -6, 3}, and so the discriminant (b^2 - 4ac) is (-6)^2 - 4(2)(3), or 36 - 24 = 12.
Because the discriminant is positive we know immediately that there are two different real roots.
-(-6) ± √12 6 ± √12
x = ------------------ = ---------------- These are equivalent to Answers E and F.
2(2) 4
hi please help i’ll give brainliest
Use the figure at the right to name the following.
8. a pair of supplementary angles
9. a pair of complementary angles
10. a pair of vertical angles
Answer:
Supplementary: AKB and BKG
Complementary: FGE and EGD
Vertical: IJH and KJG
Step-by-step explanation:
The correct options are given below,
Supplementary: AKB and BKG
Complementary: FGE and EGD
Vertical: IJH and KJG
What are lines and angles?Straight lines with little depth or width are present. You will learn about a number of lines, including transversal, intersecting, and perpendicular lines.
A figure called an angle is one in which two rays originate from the same point. In this area, you could also encounter contrasting and related viewpoints.
Given that there are different lines crossing each other at different angles. The value of the different angles can be named as,
A pair of supplementary angles: AKB and BKG
A pair of complementary angles: FGE and EGD
A pair of vertical angles: IJH and KJG
To know more about lines and angles follow
https://brainly.com/question/25770607
#SPJ2
BRAINLIST!!
The number of pages read by eight different students during a one hour reading class was used to create the box plot shown above. Which of the sets of numbers below matches the given box plot?
Answer:
C. Pages Read in an Hour: 10, 14, 16, 16, 18, 19, 21, 25
Step-by-step explanation: Got it on my study island question.
if jaylee's snow cone maker can make 800 cubic inches of ice, how many snow cones can she make with the dimensions show below?
What dimensions shown below?
Nicole makes $6.25 an hour babysitting. How much money will Nicole earn if she works 12 hours?
Answer:
$75
Step-by-step explanation:
Nicole makes $75 in 12 hours.
I hope this helped, if you have any other questions you may ask me.
7m – 3m – 6 < 6 Solve each inequality and graph the solution.
Answer:
3
Step-by-step explanation:
Step-by-step explanation:
7m - 3m - 6 < 6
4m - 6 - 6 < 0
4m - 12 < 0
4m < 12
m < 12 ÷ 4
m < 3
Can someone help me find the mistake!!!!!
Answer:
She supposedly multiplies 4*4*16*-3y but distributes it correctly as if she put (16*4)+(4*-3y) which equals 64-12y.
The work shown is a mistake, the answer of y=5 isn't.
Last week, Russell bought 8 pizzas and 10 cakes for a total of $160.
Today, Russell bought 26 pizzas and 8 cakes for a total of $226.
Assuming neither item has changed in price, what is the cost of a pizza in dollars?
Answer:
$5
Step-by-step explanation:
Create a system of equations where p is the cost of a pizza and c is the cost of a cake
8p + 10c = 160
26p + 8c = 226
Solve by elimination by multiplying the top equation by -4, and the bottom equation by 5
-32p - 40c = -640
130p + 40c = 1130
Add these together:
98p = 490
p = 5
So, the cost of a pizza is $5
Will give brainliest to whoever figures this out :(
Step-by-step explanation:
I think it's 8.9932×10⁶
Answer:
8,993,200
Step-by-step explanation:
10^3 is 1000
8993.2 * 1000
=
8,993,200
Coach Rivas can spend up to $750 on 30 swimsuits for the swim team. The inequality shown can be used to find the maximum amount in dollars she can spend on each swimsuit. 30p≤750 which inequality represents all the possible values of p,the amount of money in dollars coach Rivas can spend on each swimsuit
Answer:
$0 < p ≤ $25
Step-by-step explanation:
We know that coach Rivas can spend up to $750 on 30 swimsuits.
This means that the maximum cost that the coach can afford to pay is $750, then if the cost for the 30 swimsuits is C, we have the inequality:
C ≤ $750
Now, if each swimsuit costs p, then 30 of them costs 30 times p, then the cost of the swimsuits is:
C = 30*p
Then we have the inequality:
30*p ≤ $750.
To find the possible values of p, we just need to isolate p in one side of the inequality.
So we can divide both sides by 30 to get:
(30*p)/30 ≤ $750/30
p ≤ $25
And we also should add the restriction:
$0 < p ≤ $25
Because a swimsuit can not cost 0 dollars or less than that.
Then the inequality that represents the possible values of p is:
$0 < p ≤ $25
Which of the following is equivalent to the addition problem below?
46.61 + 51.52
A.
(40 + 50) + (6 + 1) + (0.6 + 0.5) + (0.01 + 0.02)
B.
(40 + 50) + (6 + 5) + (0.6 + 0.1) + (0.01 + 0.02)
C.
(40 + 10) + (6 + 5) + (0.6 + 0.5) + (0.01 + 0.02)
D.
(40 + 50) + (6 + 1) + (0.6 + 0.1) + (0.05 + 0.02)
Answer:
A) (40 + 50) + (6 + 1) + (0.6 + 0.5) + (0.01 + 0.02)
Step-by-step explanation:
In this case, you are breaking each term down to it's non-zero digits, and adding them:
46.61 = 40 + 6 + 0.6 + 0.01
51.52 = 50 + 1 + 0.5 + 0.02
Note however, that the answer choices add each individual non-zero terms together:
(40 + 50) + (6 + 1) + (0.6 + 0.5) + (0.01 + 0.02), or A)
A) (40 + 50) + (6 + 1) + (0.6 + 0.5) + (0.01 + 0.02) is your answer.
~
Write the equation(y=mx) for the line that contains the points (6,6) and (10,14). No picture
Answer:
y = 2x - 6
Step-by-step explanation:
14-6/10-6 = 8/4 = 2 = slope
6 = 2(6) + b
6 = 12 + b
b = -6
A quadrilateral must be a parallelogram if two the opposite sides are 1. Congruent only 2. Parallel only 3. Congruent and parallel 4 parallel and the other two sides are congruent
Answer:
what’s the question
Step-by-step explanation:
1. Opposite Sides Theorem Converse: If both pairs of opposite sides of a quadrilateral are congruent, then the figure is a parallelogram. 2. Opposite Angles Theorem Converse: If both pairs of opposite angles of a quadrilateral are congruent, then the figure is a parallelogram.
[tex]25x |2| - 16 \: \\[/tex]
Answer:
Step-by-step explanation:
a² - b² = (a +b)(a - b)
[tex]5x^{2} - 16 = 5^{2}x^{2} - 4^{2} \\\\= (5x)^{2}-4^{2}\\\\=(5x + 4)(5x - 4)[/tex]
Solve each equation: -5(7-8x)-7x=-(3x+1)
Answer:
Step-by-step explanation:
plz help simplify 8/10
[tex]\frac{8}{10}[/tex] → [tex]\frac{4}{5}[/tex]
8 and 10 can both be divided by 2. So, 8 ÷ 2 is 4 and 10 ÷ 2 is 5.
Hope this helps :)
Answer:
4/5
Step-by-step explanation:
okay so to simplify, we first need to find the GCF of 8 and 10. The GCF of 8 and 10 would be 2. We now divide both 8 and 10 by 2. That will give us 4/5.
[tex]\frac{8}{10}[/tex]÷[tex]\frac{2}{2}[/tex]=[tex]\frac{4}{5}[/tex]