hi please help me with this i’ll give brainliest if you give a correct and show your work!

Answer:

b. She should choose the rectangular tiles because the total cost will be $8 less.

Step-by-step explanation:

Which tile should Orchid choose to minimize costs? Explain.

a. She should choose the square tiles because the total cost will be $8 less.

b. She should choose the rectangular tiles because the total cost will be $8 less.

c. She should choose the square tiles because the total cost will be $14 less.

d. She should choose the rectangular tiles because the total cost will be $14 less.

Area of a square tile = 1/2 × 1/2

= 1/4

= 0.25 square feet

Area of rectangular tile = 2 × 1/4

= 2/4

= 0.5 square feet

Number of square tile needed = Area of the bathroom floor / Area of the square tile

= 40 square feet / 0.25 square feet

= 160

Number of square tile needed = 160

Cost of square tile needed = number of tiles × cost per tile

= 160 × $0.45

= $72

Cost of square tile needed = $72

Number of rectangular tile needed = Area of the bathroom floor / Area of the rectangular tile

= 40 square feet / 0.5 square feet

= 80

Number of rectangular tile needed = 80

Cost of rectangular tile needed = number of tiles × cost per tile

= 80 × $0.80

= $64

Cost of rectangular tile needed = $64

Cost of square tile needed = $72

Cost of rectangular tile needed = $64

Answer:

B

Step-by-step explanation:

Just took the quiz

Answer:

Victoria will have 3 dollars left and max wil have 2.79 cents left

Step-by-step explanation:

3.69 x 10 is 36.9 and max only has 36 dollars so change the 10 to a 9 and then subtract 36 - 33.21 which is the answer for 3.69x9. and victoria can only buy 2 120ft of string which would be 11. 98 cents

Answer: 4

Step-by-step explanation:

=( −2 /3)( −1 /6)

=( −2 /3 )( 6 /−1 )

= (−2)(6)/ (3)(−1)

= −12 /−3

=4

Answer:

4

Step-by-step explanation:

Since you can't divide a fraction by another fraction, you start by flipping the second fraction (-1/6 becomes -6/1) and changing the division sign to multiplication.

-2/3 x -6/1

Multiply across, numerator with numerator and denominator with denominator. Also, when multiplying or dividing negative numbers, two negatives make a positive (i.e. -2 x -6 = +12)

-2/3 x -6/1 = 12/3

12/3 = 4

Answer: $3.85 per/gal.

Step-by-step explanation:

$46.20/ 12 =

Step-by-step explanation:

I wish i can help but i dont know the answer. sosorry

Answer:

Step-by-step explanation:

All the factors of 64 work for this:

1, 2, 3, 4, 8, 16, 32, 64

They all fit in evenly.

Answer:

Step-by-step explanation:

Answer:

(4,0)

Step-by-step explanation:

y intercepts must be on the y acis (0, x), so 4 would not be possible for a y intercept

Answer:

-5x^2 + 8 - 4x

Step-by-step explanation:

emove parentheses.

-2{x}^{2}+3-3{x}^{2}-4x+5

−2x  

2

+3−3x  

2

−4x+5

2 Collect like terms.

(-2{x}^{2}-3{x}^{2})+(3+5)-4x

(−2x  

2

−3x  

2

)+(3+5)−4x

3 Simplify.

-5{x}^{2}+8-4x

−5x  

2

+8−4x

Step-by-step explanation:

[tex] \tt{( - 2 {x}^{2} + 3) - (3 {x}^{2} + 4x - 5)}[/tex]

Remember : While subtracting , the sign of each term of second expression changes & remove the parentheses.

⟶ [tex] \tt{ - 2 {x}^{2} + 3 - 3 {x}^{2} - 4x + 5}[/tex]

Combine like terms. Like terms are those while have the same base.Only coefficients of like terms can be added or subtracted.

⟶ [tex] \tt{ - 2 {x}^{2} - 3 {x}^{2} + 3 + 5 - 4x}[/tex]

⟶[tex] \tt{ - 5 {x}^{2} + 8 - 4x}[/tex]

In standard form , the expression should be written in a way that power of variables goes from highest to lowest.

[tex] \red{ \boxed {\boxed{ \tt{Our \: final \: answer : \boxed{ \tt{ - 5 {x}^{2} - 4x + 8}}}}}}[/tex]

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Answer:

Step-by-step explanation:

Answer:

he showed it

Step-by-step explanation:

Answer:

75

Step-by-step explanation:

Answer:

c

Step-by-step explanation:

Answer:

Step-by-step explanation:

ER is tangent to circle A and B , CD is tangent to circle B PQ is a arc in circle A

rCRS is an arc in circle B. And lastly Ps is also tangent to both circles.

Step-by-step explanation:

compare it with the equation of the circle

Answer:

[tex]\frac{2}{3}[/tex]

Step-by-step explanation:

Just simply add along the top of the numbers.

1. We know that there were 12 pieces and out of those 12 Joe ate 3 pieces and Sam ate 5.

2. So now we have the two fractions [tex]\frac{3}{12}[/tex] and [tex]\frac{5}{12}[/tex] we simply add them together by adding across the top, we do not need to make any changes to the denominator due to the fact that they are parts of the 12 pieces of pie

3. after adding 3 + 5 you should get 8 and since the denominator will remain the same the answer should be [tex]\frac{8}{12}[/tex]

4. Now we must simplify we know 8 ÷ 4 = 2 and we can also divide 12 by 4 and that gets us 3 so make the numbers into a fraction, 3 should be on the bottom, and two on the top, and when you have your final answer your work should look somewhat similar to this:

[tex]\frac{3}{12}+\frac{5}{12} =\frac{8}{12} =\frac{2}{3}[/tex]

Answer:

136

Step-by-step explanation:

This question is poorly phrased.  However, the answer must be 0.68*200=136.

The reason is that, by definition, an X% confidence range is computed in such a way that the expected percentage of X% confidence ranges constructed over many samples that will contain the true mean is X%.

Using the interpretation of a confidence interval, it is found that 136 of the intervals would be expected to contain the population mean.

It means that we are x% confident that the population parameter(mean/proportion/standard deviation) is between a and b.

Out of n intervals, x% are expected to contain the population mean, hence:

0.68 x 200 = 136.

More can be learned about the interpretation of a confidence interval at https://brainly.com/question/25890103

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Answer:

y= -1, x= -1

5x+6y=-11

-(5x-2y=-3)

     8y=-8

      y=-8/8

      y= -1

5x+6(-1)=-11

5x-6     = -11

        5x=-11+6

        5x=-5

          x=-5/5

          x=-1

The required solution of the simultaneous equation is x = -1 and y = -1.

Given that,
To solve the given simultaneous equation,
5x+6y= −11
5x = 2y −3

Simultaneous linear equations are two- or three-variable linear equations that can be solved together to arrive at a common solution.

here,
5x = 2y −3 - - - - - (1)
5x+6y= −11
By substitution, from equation 1
2y - 3 + 6y = -11
8y = -8
y = -1
Now,
5x = -2 - 3
x = -1

Thus, The required solution of the simultaneous equation is x = -1 and y = -1.

Learn more about simultaneous equations here:

https://brainly.com/question/16763389

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Answer:

The midpoint is (5.5 , - 2.5)

Step-by-step explanation:

To get the midpoint of the line segment, we use the midpoint formula

We have this as follows;

(x,y) = (x1 + x2)/2 , (y1 + y2)/2

(x1,y1) = (4,-4)

(x2,y2) = (7,-1)

We have;

(x,y) = (4+7)/2 , (-4-1)/2

(x,y) = 11/2 , -5/2

(x,y) = (5.5, -2.5)

Answer:

d=12

Step-by-step explanation:

divide 84 by 7

Answer:

675

Step-by-step explanation:

Answer:

625 times

Step-by-step explanation:

t

the total sale was neither a profit nor loss , 0%

Step-by-step explanation:

1st table :

100%-> 9900

110%-> 10890

10890-9900=990(earned)

------------------------------------------

2nd table :

100%->9900

90%-> 8910

9900-8910=990(lost)

990-990=0

hence the total sale was neither a profit nor loss , 0%

Answer:

(-10,-10)

Step-by-step explanation:

Answer:

71°

ineedatleast20characters:)

Answer: 9:4

Step-by-step explanation:

Number of rock songs = 10

Number of rap songs = 6

Number of pop songs = 2

Total number of songs = 18

The ratio of all songs to songs that are not rock will be:

= 18 : (6 + 2)

= 18 : 8

= 18/8 = 9/4

= 9:4

The answer is 9:4

Answer:

(2,3)

Step-by-step explanation:

The solution to a linear set of equations is the (x,y) point that satisfies both equations.

When you graph the equations, like in this picture, that means the intersection of the two lines.

Answer:

C

Step-by-step explanation:

Using the Central Limit Theorem, it is found that the option in which is it not appropriate to assume that the sampling distribution of the sample mean is approximately normal is:

C) A random sample of 10 taken from a population distribution that is skewed to the right

The Central Limit Theorem establishes that, for a normally distributed random variable X, with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean [tex]\mu[/tex] and standard deviation [tex]s = \frac{\sigma}{\sqrt{n}}[/tex].

In option C, there is an skewed variable and a sample size less than 30, hence, the Central Limit Theorem is not applicable.

A similar problem is given at https://brainly.com/question/4086221