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3 years ago

K-12 Algebra 2. PLEASE HELP! 25 points

Mathematics

1 answer:

strojnjashka [21]3 years ago

6 0

Answer:

A. how much of the students time is spent on social media during school hours.

B. By using some kind of selection technique Like Having students draw number from a hat, who ever have the specific numbers will take her survey.

C. The population for Sofies research would be a rate of 5/2. For every 5 people who take the survey only 2 turned it in.

D. She would conclude that 1 out of every 2 or 50 percent of students use social media while doing school work.

Step-by-step explanation:

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Please help <br><br>y≥1/3x-3

zloy xaker [14]

Answer:

B, the one with the line and shaded the top on the right side. (The one that goes to 7 on the x axis).

Step-by-step explanation:

First I find which graph as y -intercept of -3, which is all of them.

Next, I find with graph has a slope of 1/3. (rise 1 run 3). Only B and D has a slope of 1/3 (The ones that has a less steep graph. )

Then, I use the coordinate (0,0) to see which side the graph shades. I plug it into the inequality. (0)≥1/3(0)-3. Solve. Is 0 greater than -3. YES! so we shade the part where (0,0) is shaded which is B.

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3 years ago

1. In a supermarket, each orange costs $3, and each apple costs $2. If you want to spend

Dmitry_Shevchenko [17]

2o + 3a = $45

Not sure if this is what your looking for.

7 0

3 years ago

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Among 35 students in a class, 20 of them earned A's on the midterm exam, 13 earned A's on the nal exam, and 12 did not earn A's

enyata [817]

Answer:

The correct answer is " $\frac{2}{7}$ ".

Step-by-step explanation:

According to the question,

Number of students,

= 35

A ! mid term A,

$n(A) = 20$

B : final A,

$n(B) = 13$

Didn't start,

$n(A^c \cap B^c) = 12$

Now,

⇒ $n(A \cup B)=35-12$

$=23$

then,

⇒ $n(A \cup B)=20+13-23$

$=10$

hence,

The probability will be:

⇒ $P(A \cap B)=\frac{10}{35}$

⇒ $=\frac{2}{7}$

7 0

3 years ago

Identify the equation of the circle J with center K(-7,3) and radius 6.

andreyandreev [35.5K]

Answer:

equation of the circle J with center K(-7,3) and radius 6 is=

x^2+y^2+14x-6y+22=0

Step by step explanation:

Equation of circle with given centre (h,k) and radius r is

(x-h)^2+(y-k)^2=r^2

Given centre are K(-7,3) and radius 6.

So equation of Circle=

(x- -7)^2+(y-3)^2=6^2

x^2+14x+49+y^2-6y+9=36

x^2+y^2+14x-6y+22=0 answer

8 0

3 years ago

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Which expressions are equivalent to 2^5.2^4? Check all that apply.

USPshnik [31]

Answer:

$2^9$

Step-by-step explanation:

$2^5 \times 2^4$

The law of exponents says that when the base is same in multiplication, add the exponents.

$2^{5+4}$

$=2^9$

The answer is 2 to the power of 9.

5 0

3 years ago

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