All categories

2 years ago

Anita incorrectly wrote the equation z = w – 18 to describe the pattern in the table.

Mathematics

2 answers:

Andreyy892 years ago

6 0

D Anita only compared the values in the row for z.

LiRa [457]2 years ago

5 0

The 63 is the err in her explanation here.

You might be interested in

Is the following relation a function?<br><br> {(3, −2), (1, 2), (−1, −4), (−1, 2)}

mel-nik [20]

Answer:

<h2>It's not a function.</h2>

Step-by-step explanation:

A function is a process or a relation that associates each element x of a set X, to a single element y of another set Y.

We have:

{(3, -2), (1, 2), (-1, -4), (-1, 2)}

for x = -1 are two values of y = -4 and y = 2. Therefore this realtion is not a function.

3 0

3 years ago

Read 2 more answers

The measure of two supplementary angels, s and t, are the ratio of 7:3. Find the value of s

Andrews [41]

7x+3x=180

10x=180

/10 /10

x=18

7x=s

7(18)=126

3x=t

3(18)=t

54=t

6 0

2 years ago

Read 2 more answers

How do you solve for b in this expression

Leona [35]

Remember you can do anything to an equation as long as you do it to both sides

8-(3+b)=b-9

remember the distributive property
a(b+c)=ab+ac

distribute that invisible -1
-(3+b)=-1(3+b)=-1(3)-1(b)=-3-b

8-3-b=b-9
add like terms
5-b=b-9
add b to both sides
5=2b-9
add 9 to both sides
14=2b
divide both sides by 2
7=b
b=7

7 0

3 years ago

Which equation has only one solution? A lx-5l=1 B l-6-2xl=8 C l5x+10l=10 D l-6x+3l=0

dem82 [27]

Answer:

D: x = 1/2

Step-by-step explanation:

D is correct. The solution here is the solution of -6x + 3 = 0, which is x = 1/2.

5 0

3 years ago

The midterm exam in Econ 2201 consisting of 50 students was worth 100 points. The top 5 scores were 75, 81, 88, 92, and 94.

iragen [17]

Answer:

Step-by-step explanation:

Given that the midterm exam in Econ 2201 consisting of 50 students was worth 100 points. The top 5 scores were 75, 81, 88, 92, and 94.

We have to find the 95th percentile of the score distribution.

For this purpose let us arrange in ascending order

75, 81, 88, 92, 94

We must have 95% below the value we find out so that it would be the 95th percentile

i.e. here 95% means = $5*95/100 = 4.75$

4.75 entries should be below that entry

We see that 80% entries are below 92 and 100% below 95

To find 95%

For 20 % difference differnce in score = 94-92 =2

Hence for 15% difference difference in score = $2(\frac{15}{20} )=1.5$

95th percentile= 92+1.5 = 93.5

6 0

3 years ago