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4 years ago

Please help! ill give brainliest.

Mathematics

1 answer:

WITCHER [35]4 years ago

5 0

Answer:

$y = -\dfrac{4}{5}x + 11$

Step-by-step explanation:

(5, 7), (10, 3)

$m = \dfrac{y_2 - y_1}{x_2 - x_1} = \dfrac{3 - 7}{10 - 5} = -\dfrac{4}{5}$

$y = mx + b$

$y = -\dfrac{4}{5}x + b$

$7 = -\dfrac{4}{5} \times 5 + b$

$7 = -4 + b$

$b = 11$

Answer:

$y = -\dfrac{4}{5}x + 11$

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(3x)^2 write in expanded form use parentheses to indicate multiplication

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(3x)^2 = (3x)(3x)

(3x)(3x) is your expanded form

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3 years ago

Heron’s formula: Area = Triangle PQR has sides measuring 9 feet and 10 feet and a perimeter of 24 feet. What is the area of tria

VladimirAG [237]

Hello,

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4 years ago

Read 2 more answers

I need help with number 2

horrorfan [7]

Answer:

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Step-by-step explanation:

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3 years ago

Find the indicated sum of each sequence S8 of -2,-13,-24,-35

valentina_108 [34]

Answer:

The sum of the arithmetic sequence is $S_{8}=-324$ .

Step-by-step explanation:

A sequence is a set of numbers that are in order.

In an arithmetic sequence the difference between one term and the next is a constant. In other words, we just add the same value each time infinitely.

If the first term of an arithmetic sequence is $a_1$ and the common difference is d, then the nth term of the sequence is given by:

$a_{n}=a_{1}+(n-1)d$

For the sequence

$-2,-13,-24,-35,...$

The pattern is continued by adding -11 to the last number each time.

An arithmetic series is the sum of an arithmetic sequence. We find the sum by adding the first, $a_1$ and last term, $a_n$ , divide by 2 in order to get the mean of the two values and then multiply by the number of values, n