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2 years ago

Find the rate of change of the line by completing parts (a) and (b).

Mathematics

1 answer:

Taya2010 [7]2 years ago

4 0

Answer:

The rate of change is 1/2

Step-by-step explanation:

Formula:

y-y/x-x

The two points i chose were (-1,1) and (1,1)

You plug them in:

1-0/ 1 - (-1)

leaving you with 1/2

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PLEASE ANSWER ASAP!!!

qwelly [4]

Answer:

D, E

Step-by-step explanation:

It’s not A because the equation can not be any pair of numbers.

It’s not B because that is stupid logic.

It’s not C because (3,4) and (10,8) don’t work

It’s not F because there is 1 solution

5 0

3 years ago

Please help me i really need to pass!! i’ll mark you as brainliest

lapo4ka [179]

Answer:

x=33.4

Step-by-step explanation:

4 0

2 years ago

Read 2 more answers

3. For the following geometric sequence, determine a1 and r and find an explicit formula for the sequence: 2, -6, 18, -54…

Vilka [71]

Step-by-step explanation:

a1 is the first term. In this case, 2.

r is the common ratio. Each term is multiplied by -3 to get the next term, so r = -3.

an = 2 (-3)ⁿ⁻¹

4 0

2 years ago

Heart beats 2,320 times during 20 minutes of rowing. While resting the heart is beating 16 times in 15 seconds. What is the diff

Mrac [35]

Answer: 0.87 times per second (Or 52.2 times per minute)

Step-by-step explanation:

You need to make the conversion from minutes to seconds.

Remember that 1 minute has 60 seconds. Then 20 minutes to seconds is:

$(20minutes)(\frac{60seconds}{1minute})=1,200seconds$

Find the number of times the heart beats in 1 second when it is rowing:

$x_1=\frac{(2,320times)}{1,200seconds}=1.93\ times\ per\ second$

Find the number of times the heart beats in 1 second when it is resting:

$x_2=\frac{(16times)}{15seconds}=1.06\ times\ per\ second$

Then the difference is:

$difference=(1.93-1.06)\ times\ per\ second\\difference=0.87\ times\ per\ second$

(Or 52.2 times per minute)

6 0

3 years ago

Read 2 more answers

What are the solutions of the equation?

yKpoI14uk [10]

Answer:

Option (b) is correct.

The solution of the quadratic equation $x^2+4x=21$ is -7 and 3

Step-by-step explanation:

Consider the given quadratic equation $x^2+4x=21$

This can be rewritten as, $x^2+4x-21=0$

We can solve the quadratic equation using middle term splitting method,

4x can be written as 7x-3x , we get,

$\Rightarrow x^2+4x-21=0$

$\Rightarrow x^2+7x-3x-21=0$

Taking terms common, we get,

$\Rightarrow x(x+7)-3(x+7)=0$

Thus, $\Rightarrow (x-3)(x+7)=0$

Thus, we get (x-3)= 0 or (x+7)= 0

this gives x = 3 or x = -7

Thus, the solution of the quadratic equation $x^2+4x=21$ is -7 and 3

7 0

3 years ago