Answer:
2x+5
Step-by-step explanation:
Formula for the perimeter of a reactangle= 2(l+b)
So,
2(l+b) = 10x+18
2(3x+4 + b) = 10x+18
Rearrange and solve
3x+4+b = 5x+9
b = 5x+9 - 3x - 4
b = 2x+5
Thus the measurement of the width = 2x+5
Hope this helps
In the triangle above, the measure of A is 66°, and the measure of B is 68°. What is the measure of C?
Answer:
46°
Step-by-step explanation:
Given that :
Angle, A = 66°
Angle B = 68°
The sum of angles in a triangle is given by :
A + B + C = 180° (sum if angles una triangle)
66° + 68° + C = 180°
134° + C = 180°
C = 180° - 134°
C = 46°
Hence, angle C is 46°
In chapter 1, we introduced several sampling methods: Simple random sample, stratified sampling, systematic sampling, and cluster sampling. All the sampling methods except for convenience sampling, allow for unbiased statistical inference to be made. Convenience sampling typically leads to an unrepresentative sample and biased results. In this week's discussion board, you are asked to design a sample that is representative of the population and unbiased. Scenario: A marketing executive for Coca- Cola, Inc. wants to identify television shows that people in the Seattle area who typically drink Coke are watching. The executive has a list of all households in the Seattle area. Task: You are asked to design a sample to obtain the individuals in the sample. Use the provided scenario to help the Coca-Cola executive identifying the television shows. Design a sample that meets the requirements we discussed in the previous chapter. You need to explain why did you choose this sampling method.
Answer:
For the coca-cola case, stratified sampling coupled with random sampling will be used.
Step-by-step explanation:
Before going into discussing the scenario, it is evident to discuss the properties of mentioned sampling methods. They are as follows:
Random sampling as the name indicates is purely by randomness. It is a sample in which each element of the population has an equal chance of coming on.
Systematic sampling is easier than random sampling. Here all the elements are arranged in an order and the kth element is considered after a specific interval.
Cluster Sampling is another type of sampling where the population is divided into groups probably on the basis of their geographical location and all the elements of the cluster are then used.
Stratified Sampling is a two-step sampling method where firstly the population is divided into strata, groups on basis of some characteristic, like gender, age, and then another sampling method as the random or systematic method is chosen to pick samples from each of these strata.
On the basis of properties presented and the scenario outlined, it is evident that the population will be divided into strata based on age, gender, profession, and education, and then a random sampling within each stratum is used for all the population of the Seattle area.
Joey is buying a new couch for his living room. The couch costs $379.00. He has a choice of using a coupon for 5% off before taxes, getting a rebate of $20 after taxes, or getting a discount of $18 before taxes. If the sales tax rate is 8%, which option is the better deal?
Answer:
rebate of 20 after taxes
Step-by-step explanation:
Answer:
rebate of 20 after taxes
Step-by-step explanation:
Find the slope of the
line through the
points (1,-2) and (-7,4)
Answer:
-3/4
Step-by-step explanation:
To find the slope, plug the coordinates into the slope formula.
y2 - y1 / x2 - x1
4 - (-2) / -7 - 1
6 / - 8
-3/4
The polygons in each pair are similar. Find the missing side length.
A.5
B.6
C.11
D.8
The volume of a rectangular prism is 12 cubic inches. One of the dimensions of the prism is a fraction. What could the dimensions of the prism be? Give two possible answers.
Answer:
Step-by-step explanation:
12 = 24 * 1 * 1/2
12 = 36 * 1 * 1/3
These are 2 possible answers.
There are many more.
A square has an area of 285.61cm2 work out the perimeter of the square.
Answer:
67.6 cm
Step-by-step explanation:
x^2 = 285.61
x = 16.9
4x = 67.6 cm
Greg has two coupons for a bicycle.
Coupon A: $19 rebate on a $81 bicycle
Coupon B: 20% off of a $81 bicycle
Choose the coupon that gives the lower price.
The price of Coupon A will be less than the price of Coupon B. Coupon A gives the lower price.
What is Algebra?The analysis of mathematical representations is algebra, and the handling of those symbols is logic.
PEMDAS rule means for the Parenthesis, Exponent, Multiplication, Division, Addition, and Subtraction. This rule is used to solve the equation in a proper and correct manner.
Greg has two coupons for a bicycle.
Coupon A: $19 rebate on an $81 bicycle. Then the price of a bicycle will be
⇒ $81 - $19
⇒ $62
Coupon B: 20% off of an $81 bicycle. Then the price of a bicycle will be
⇒ $81 x 0.80
⇒ $64.8
The price of Coupon A will be less than the price of Coupon B. Coupon A gives the lower price.
More about the Algebra link is given below.
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hurry pleaseeeeeeeeeeeeeeeeeeeeeee
I will give brainiest help pls
Answer:
it could be the 5th one !!
HELPP ILL GIVE BRAINLESS
Which inequality represents all values of x for which the quotient below is
defined?
VX+1 + 33 -
A. XS3
B. -1 sx<3
C. -1 sxs3
D. X2-1
Answer:
Step-by-step explanation:It's c bestie ,;
Answer:
The answer is C
Step-by-step explanation:
I took the quiz and looked it up just to make sure
Give at least 3 objects that have the shape of quadrilateral
Answer:
Chess board, arrow , kite , sign board
Step-by-step explanation:
A quadrilateral is a 2D shape which has 4 straight sides .
Use the figure to find the measures of the numbered angles. Helppp plzzz
angle 1 = 81°
angle 2 = 99°
angle 3 = 81°
angle 4 = 99°
angle 5 = 81°
angle 6 = 99°
angle 7 = 81°
find to the nearest degree the size of each angle of a regular heptagon
plsss i need answers nowwww
Answer:
That's the question
Step-by-step explanation:
A right triangle undergoes a sequence of transformations to generate a new
triangle. Which of the following sequences of transformations would result in
the two triangles being similar but not congruent?
Answer:
Option a.
Step-by-step explanation:
Two figures are similar if they have the same shape, but maybe different sizes, so if we have a triangle, and we dilate/contract it with a scale factor K, the original triangle and the dilated/contracted one will be similar.
Two figures are congruent if they have the same shape and size. For example, transformations that do not change the size will make congruent figures, those transformations are reflections, rotations and translations.
Now we need to find a sequence of transformations that would result in the two triangles being similar but no congruent, then we need to find the sequence of transformations that has a dilation/contraction in it.
The only sequence that has a dilation is the first one:
a) Rotation 90° centered about the origin, followed by a dilation of scale factor 3 centered about the origin.
Then option a is the correct one.
Jeremy has $3.50 to purchase erasers. If erasers cost $0.21 each, about how many can he buy?
Answer:
16 brainlist pls
Step-by-step explanation:
first person to get it right gets brainliest
Which number line represents the solution for 5x greater than 30
It's G bc of the full dot and the line going up.
If a cone has the same diameter and height as a cylinder, how many cones filled with water can the cylinder hold?
1
2
3
4
5
Answer:
3
Step-by-step explanation:
2-2N=3N+17
help plz thank you
Answer:
-3 = N
Step-by-step explanation:
2-2N=3N+17
Add 2N to each side
2-2N+2N=3N+2N+17
2 = 5N +17
Subtract 17 from each side
2-17 = 5N+17-17
-15 = 5N
Divide each side by 5
-15/5 = 5N/5
-3 = N
Answer:
N= -3
Step-by-step explanation:
First, bring 3N on to the left side by subtracting 3N with 2N
2-2N-3N=17
Then, move 2 to the right side by subtracting 17 and 2: -2N-3N= 17-2
Solving the like terms gives us -5N= 15
N= 15/-5
N= -3
. What is the value of x in the figure? * 1 point Captionless Image A. 180 B. 90 C. 40 D. 8
Sophia has already scored 54 points, and she scores 23 more points with every coin she collects. After collecting a total of 2 coins, how many points will sophia have scored in all?
Answer:
100 points
Step-by-step explanation:
As it is mentioned that she has scored 54 points already and each coin has 23 points.
54+23+23 =100
SORRY IF WRONG
(-9x - 4) - (4x2 + 2x - 7)
Answer:
I assume you meant 4x^2
So the answer in simplified form is -4x^2-11x+3
Solve. Suppose that 1,000 students took a math examination wherein the maximum score that they can obtain is 100. Their average score is 70 with a standard of the deviation of 5. How many of the students obtained a score from 70 to 95?
Answer:
prolly like 689
Step-by-step explanation:
As per the given data, approximately 499 of the 1,000 students obtained a score from 70 to 95.
What is z-score?A standardized score is an example of a z-score. A z-score is a measure of how far a data point is from the mean in a distribution.
To solve this problem, we need to calculate the number of students who obtained a score from 70 to 95.
First, we need to calculate the z-scores for these two scores using the formula:
z = (score - mean) / standard deviation
For a score of 70:
z = (70 - 70) / 5 = 0
For a score of 95:
z = (95 - 70) / 5 = 5
Next, we need to find the area under the standard normal distribution curve between these two z-scores using a standard normal distribution table or calculator.
The area between z = 0 and z = 5 is approximately 0.499, or 49.9%.
Finally, we can calculate the number of students who obtained a score from 70 to 95 by multiplying this proportion by the total number of students:
Number of students = proportion x total number of students
Number of students = 0.499 x 1000
Number of students ≈ 499
Therefore, approximately 499 of the 1,000 students obtained a score from 70 to 95.
For more details regarding standard deviation, visit:
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find the measure of the missing angles
Answer:
Step-by-step explanation:
b = 20 °
c = 160° ( b/c 180-20 = 160 ) :)
Plsssssss help me with thiss.
Answer:
Step-by-step explanation:
you need to mutpliy all or your numders 17 x 4 x 8 x 9 = 4896m
3x+3 solve for x PLLSSSS HELP giving brainliest
if you mean that 3x+3=0 then x should equal 0
Answer:
x = 27
Step-by-step explanation:
3x + 3 = 84
3x = 84 - 3
3x = 81
x = 81/3
x = 27
The area of a circle is 113.04 square meters what is its diameter
Answer:
The diameter would be 12.
linear regression equation y=-0.4x+16.3
Answer:
15.9=y
Step-by-step explanation:
-0.4+16.3
yw if I'm wrong then I'll try to figure it out again
Please do correctly! I will mark you Brainliest!
Answer:
3(4+√2)
Step-by-step explanation:
Here we need to find the perimeter of the given figure. Here the given figure is made from a triangle and a square. The side lenght of the square is 3. We need to find the hypontenuse of the triangle in order to find Perimeter .
• Using Pythagoras Theorem :-
⇒ h² = p² + b²
⇒ h² = 3² + 3²
⇒ h² = 9 + 9
⇒ h² = 18
⇒ h = √[ 9 × 2 ]
⇒ h = 3√2 .
Therefore the perimeter will be ,
⇒ P = 3√2 + 3 + 3 + 3 + 3
⇒ P = 3√2 + 12
⇒ P = 3( 4 + √2)
Hence the perimeter of the figure is 3(4+√2) .