MATHEMATICS MIDDLE SCHOOL

Which function is graphed below?A) y=1/3(3)^x
B) y=3(1/3)^x
C)y=(1/2)^x+2
D) y=(2)^x-1
Which function is graphed below? A) y=1/3(3)^x B) y=3(1/3)^x C)y=(1/2)^x+2 - 1

Answers

Answer 1
Answer:

Answer:

The correct option is B) y=3((1)/(3))^(x)

Step-by-step explanation:

Consider the provided graph:

The general formula for equation of exponential decay is:y=ab^(x) where b<1

The graph of exponential decay y=ab^(x) where b<1 as shown in figure 1:

From the figure 1, it is clear that a represents the y intercept and the coordinates are (0,a).

Now, consider the provided Graph:

The y intercept is (0,3)

Therefore, the value of a must be 3.

Now, consider the provided options, only option B) has the value of a = 3.

Therefore, the correct option is: B) y=3((1)/(3))^(x) .
Answer 2
Answer:

Answer:

B) y=3(1/3)^x

Step-by-step explanation:

Based on the graph, y intercept = 3

So you can plug in x =0 in each functions given in the options to see which one has y-intercept = 3

y= 3 (1/3)^x  ; when x = 0, y = 3 * 3^0 = 3 * 1 = 3

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A bag of apples weighs 7 7/8 pounds and a full bag costs $10.88. By weight 1/18 of the apples are rotten . What is the cost of the bag if the bad apples are removed?

What is the name of the relationship between 2 and 7?A.
adjacent

B.
alternate interior

C.
alternate exterior

D.
corresponding

Answers

ANSWER: C.  alternate exterior

EXPLANATION: Alternate Exterior Angles are two angles that are on the exterior of and , but on opposite sides of the transversal. They are located outside the two parallel lines but on opposite sides of the transversal, creating two pairs of alternate exterior angles. Alternate exterior angles are congruent, meaning they have same measures. Here is an image to understand it better.
In the question which is asking to choose among the following that is the relationship between 2 and 7 base on the diagram that is stated in the said question, base on my research and further investigation, I would say that the answer would be letter C. Alternate Exterior angles. I hope you are satisfied with my answer and feel free to ask for more

15% of the school parking spaces are handicap spaces. The school has 18 handicap spaces. How many parking spaces are there?

Answers

There are 120 parking spaces.  because if you divide each by 3 then 15% percent becomes 5% and 18 handicapp spaces becomes 6 parking lot spances. Since we know that there is 100% in total percentage we multiply 6 with 20 in order to get 120
number of parking = 18 * 100 / 15 = 120

in a department store, a $40 dress is marked, "save 25%." what is the discount? what is the sale price of the dress?

Answers

25%= 1/4

1/4 of 40 is 10

40 - 10= 30

$30 is the sales price.

$10 was the discount.
so wat you do first is 40 ×.25 which is______ then you minus- what you get from 40 

Two relationships are described.Relationship S: Karen drove 160 miles in 4 hours and then she dorve 80 miles in 2 hours.

Relationship T: Veron cooked 6 hamburgers in 10 min, and thenhe cooked 9 hamburgers in 15 min.

What statement is true about these relationships?

A.Neither relationship is a direct variation.
B.Both relationships are direct variation.
C.Only relationship S is a direct variation.
D.Only relationship T is a direct variation.

Answers

The answer would be B
S) This is because 160 ÷ 2 = 80 and 4÷2 = 2
T) This is because 1.5x6=9 and 1.5x10= 15

Which expression represents 22 more than the difference between 95 and 63 A. (22+95)
B. 22+(95+63)
C. (95-63)+22

Answers

Answer:

C. (95-63)+22

Step-by-step explanation:

difference means subtraction

95-63

more than means add after

(95-63) +22

Answer:

C

Step-by-step explanation:

Difference: 95 - 63

22 more: (95 - 63) + 22

Hey can you please make sure i got these two answers correct? Thanks <3

Answers

first one
use pythagorean theorem to find the height as in diagram atachmetn
4^2+h^2=8^2
16+h^2=64
minus 16
h^2=48
sqrt both sides
h=4√3

area=1/2bh
area=1/2(4)4√3
area=8√3
aprox
area=13.8
round
area=14cm^2
but that is only 1 triangle so double it
14*2=28cm^2



same as other, just cut along the black center line and rearanged
28 in^2
1st 24   second your right ithink
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