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4 years ago

15

The graph shows how the number of keychains in your collection increased since you began collecting five months ago. How many ke

ychains did you collect during the third month? PLZ HELP

2 answers:

lina2011 [118]4 years ago

7 0

Ten keychains in 3 months

prisoha [69]4 years ago

5 0

Answer:

fourth month

Step-by-step explanation:

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The given line passes through the points (−3, 4) and (3, -4). What is the equation, in point-slope form.

lidiya [134]

We replace two point into any equation
there
y-4=-4/3(x+3)
right.

7 0

3 years ago

Which expression has both 8 and n as factors?

mezya [45]

Answer:

8n

Step-by-step explanation:

8n is the factor of both 8 and n. in the following question.

Factor ⇒ If a number, that use to divide another number and we get zero as a remainder, the number is called the factor of another number.

In this question, 8n is divided by both 8 and n and also we get zero as a remainder.

Therefore, 8n is the factor of both 8 and n .

4 0

4 years ago

mario62 [17]

Answer:

26.4

Step-by-step explanation:

<u>Law Of Cosines:</u>

$cos(A)=\frac{b^2+c^2-a^2}{2bc}$

This should work for any side. This can generally be thought as:

$cos(\text{angle}) = \frac{\text{sum of squares of two other sides-opposite side squared}}{\text{2 times the product of the other two sides}}$

If this is too confusing here's the formula for the other sides (which is essentially the same, just different variables)

$cos(B)=\frac{a^2+c^2-b^2}{2ac}$

$cos(C) =\frac{a^2+b^2-c^2}{2ab}$

Anyways now just plug in the known values into the equation

$cos(A)=\frac{4^2+6^2-3^2}{2(6)(4)}\\$

Square and multiply values

$cos(A)=\frac{16+36-9}{48}$

Add the values in the numerator

$cos(A)=\frac{43}{48}$

Take the inverse of cosine on both sides

$A=cos^{-1}(\frac{43}{48})$

calculate arccosine (inverse cosine) using a calculator

$A\approx 26.384$

Round to nearest tenth

$A\approx26.4$

7 0

2 years ago

Lauren says that two expressions 3x+4(2x+5) and 6x +5x . do these equal the same

spin [16.1K]

<em>these do not equal the same. </em>

step by step: 3x + 4 (2x + 5)

multiply 4 by 2x, which is 8, then multiply 4 by 5, which is 20.

simplify; 3x + 8x + 20

combine like terms; (3x + 8x) + (20)

you’ll come up with 11x + 20

step by step: 6x + 5x

just add the two together and... bam, you get 11x.

4 0

4 years ago

Find each unknown. Double a known fact. <br>9 x 4=

Bogdan [553]

Answer: 36

Step-by-step explanation:

7 0

3 years ago