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3 years ago

PLEASE HELP YOU WILL GIVE YOU POINTS!!!

Mathematics

1 answer:

Dafna1 [17]3 years ago

8 0

Answer:

The Answer is the 2nd Table from the top

Step-by-step explanation:

Total of 30 men, 20 watched 10 didn't

Total of 80 participants, 45 Watched, 35 Didn't

The Female participants had to add up to fill in the bottom rows.

You might be interested in

An equation is shown below:

Roman55 [17]

PEMDAS

10x -40 +15 = -15
-10x -10x
________________
-40 +15 = -15 - 10x
+15 +15
________________
-40 + 15 +15 = -10x
_______________
-40 + 30 = -10x
_____________
-25 = -10x
+10 +10
________
-15 = x

<em>Hopefully this all makes sense to you ☺</em>

4 0

4 years ago

Read 2 more answers

Daniel is looking over some data regarding the temperatures of countries and how the temperature relates to the number of mosqui

Doss [256]

The logarithmic function when the temperature is 64 degrees is given as
ln f(x) = x ln 2.

<h3>What is a logarithmic function?</h3>

A logarithmic function is the inverse of an exponential function. It is to be noted that all exponential functions can be written as logarithmic functions.

Hence, to convert the mathematical statement above into a logarithmic function we say:

f(x) = 2ˣ

ln f(x) = ln 2ˣ

ln f(x) = x ln 2

Ln 64 = x Ln 2

Let f(x) = 64;

Hence,

Ln 64 = x ln 2

Divide both sides by ln 2 to get x

ln 64/ln 2 = x

Hence,

x = ln 64/ln 2

= 6

Learn more about Logarithmic Functions at:
brainly.com/question/1695836

#SPJ1

7 0

2 years ago

F(x) = 3 x² + 5 x - 7 &

Andrew [12]

Answer:

4x² + 13x + 3 and 2x² - 3x - 17

Step-by-step explanation:

(a)

f(x) + g(x)

= 3x² + 5x - 7 + x² + 8x + 10 ← collect like terms

= 4x² + 13x + 3

(b)

f(x) - g(x)

= 3x² + 5x - 7 - (x² + 8x + 10)

= 3x² + 5x - 7 - x² - 8x - 10 ← collect like terms

= 2x² - 3x - 17

6 0

3 years ago

ASAP pleaseeee i have to submit it noww

Sauron [17]

Answer:

a. 95

b. 86

Step-by-step explanation:

Since you need it quick, no explanation for now.

7 0

3 years ago

Read 2 more answers

Choose the equivalent system of linear equations that will produce the same solution as the one given below. (1 point) 4x − 2y =

Kamila [148]

<h3><u>Question:</u></h3>

Choose the equivalent system of linear equations that will produce the same solution as the one given below.

4x - 2y = 6

2x + y = 5

Options:

A) -4x - 2y = 10

-4y = 4

B) -4x - 5y = -1

-7y = 5

C) 3x + 2y = 6

7x = 12

D) 4x + 2y = 10

8x = 16

<h3><u>Answer:</u></h3>

Option D

The equivalent system of linear equations that will produce the same solution as the one given is 4x + 2y = 10 and 8x = 16

<h3><u>Solution:</u></h3>

Given system of equations are:

4x - 2y = 6 --------- eqn 1

2x + y = 5 ------- eqn 2

Multiply eqn 2 by 2

2(2x + y = 5)

4x + 2y = 10 --------- eqn 3

Add eqn 1 and eqn 3

4x - 2y + 4x + 2y = 6 + 10

8x = 16

x = 2

Substitute x = 2 in eqn 1

4(2) - 2y = 6

8 - 2y = 6

2y = 8 - 6

2y = 2

y = 1

Thus the solution of given system of equations is (x , y) = (2, 1)

<h3>Let us check the options one by one</h3><h3>Option A) </h3>

Given system of equations are:

-4x - 2y = 10 ---- eqn 1

-4y = 4 --- eqn 2

Substitute the obtained solution (x, y) = (2, 1) in above equations and check if it makes the equation true

From eqn 2,

-4(1) = 4

$-4\neq 4$

Thus this option does not produce the same solution as the one given

<h3>Option B)</h3>

-4x - 5y = -1 ----- eqn 1

-7y = 5 ------- eqn 2

Substitute the obtained solution (x, y) = (2, 1) in above equations and check if it makes the equation true

From eqn 2,

$-7(1) = 5\\\\-7\neq 5$

Thus this option does not produce the same solution as the one given

<h3>Option C)</h3>

3x + 2y = 6 ------ eqn 1

7x = 12 --------- eqn 2

Substitute the obtained solution (x, y) = (2, 1) in above equations and check if it makes the equation true

From eqn 2,

$7(2) = 12\\\\14\neq 12$

Thus this option does not produce the same solution as the one given

<h3>Option D)</h3>

4x + 2y = 10 ------ eqn 1

8x = 16 -------- eqn 2

Substitute the obtained solution (x, y) = (2, 1) in above equations and check if it makes the equation true

From eqn 2,

8(2) = 16

16 = 16

Also,

from eqn 2,

8x = 16

x = 2

substitute x = 2 in eqn 1

4(2) + 2y = 10

8 + 2y = 10

2y = 2

y = 1

Thus solution is (2, 1)

Thus this option produce the same solution as the one given

4 0

3 years ago