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3 years ago

(−11, 6), (−7, 2) slope

Mathematics

2 answers:

Liula [17]3 years ago

8 0

Answer:

-1

Step-by-step explanation:

Monica [59]3 years ago

5 0

-1

Explanation:..............

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What is the 1st term when –5z2 + 7z4 + 11z – 8z3 is arranged in descending order?

djverab [1.8K]

The first term would be 7z4

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3 years ago

The Baker formula estimates the maximum heart rate, in beats per minute, of a person who is

seropon [69]

Answer:

For a=16, the Maximum Heart Rate is 188 Beats Per Minute.

Step-by-step explanation:

To begin, we know that the formula:

$b(a)=200-0.75a$ Eqn(1).

is equivalent to a linear equation of algebraic form denoted as:

$y=k+mx$ Eqn(2)

as such that Eqns (1) and (2) relate as follow:

$y$ ⇔ $b(a)$ : denoting our Dependent Variable, in this case Max. Heart Rate in Beats Per Minute

$x$ ⇔ $a$ : is our Independent Variable, in this case the Age of the Person

$m$ ⇔ $0.75$ : denoting the Rate of Change of the Age.

$k$ ⇔ $200$ : denoting our Constant.

Now in the question our value of $b(a)$ is given as 188 beats per minute, which by plugging in Eqn(1) gives:

$200-0.75a=188$

from which we can solve to obtain the value of $a$ as follow:

$-0.75a=188-200$ Gather similar terms on each side

$-0.75a=-12\\$ Simplify

$a=\frac{-12}{-0.75}$ Solve for $a$

$a=16$

Which tells us that at the Age of 16, the Max. Heart Rate is 188 Beats Per Minute.

4 0

3 years ago

Which type of transformation is shown?

kozerog [31]

Answer:

rotation? I think I'm not sure to or reflection

7 0

3 years ago

Read 2 more answers

In the first week of July, a record 1,040 people went to the local swimming pool. In the second week, 105 fewer people went to

lesantik [10]

Answer:

The percentage of people going to the people in week 4 compared to week 1 decreased by 25%.

Step-by-step explanation:

Week 1: 1,040 people

Week 2: 105 fewer people

1040 - 105 = 935 people

Week 3: 135 more people

935 + 135 = 1070 people

Week 4: 290 fewer people

1070 - 290 = 780 people

So, there were 260 fewer people, going to the pool in those 4 weeks compared to week 1.

Now, we must find the percentage change.

x/100 = 780/1040

Cross multiply.

1040x = 78000

Divide both sides by 1040 to leave x by itself on one side.

x = 78000/1040

x = 75%

This means only 75% of the total people from week one were going to the pool in week four. Therefore, there was a 25% decrease in the number of people who went to the pool over these four weeks.

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3 years ago

Right triangle ABC has side lengths AB = 4x+28, BC = 2x+13, AC = 3x-15. Assuming C is the right angle, for which value of x is t

barxatty [35]

Answer:

Step-by-step explanation:

Because the other just make no sense

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3 years ago