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3 years ago

I need help and please explain thx

Mathematics

1 answer:

Alexeev081 [22]3 years ago

5 0

Assuming - m = price of each magazine:

Answer: 12/m (b)

It states that Deshawn bout SOME magazines not only one for $12.

If each magazine costs the same amount then we must divide to find how many magazines he bought for $12.

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At what point does the terminal side of the angle 7pi over 4 in standard position intersect the unit circle

maria [59]

The fourth terminal. The unit circle you move around counterclockwise and 8pi over 4 is 2pi, which is also zero. So the quadrant would be just 45 degrees below 2pi and in quadrant 4

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3 years ago

Which expression illustrates the associative property of addition? (3 19) – 12 = (3 12) – 19 3 (19 – 12) = 3 (19 12) (3 19) – 12

Gre4nikov [31]

Answer:

Associative Property

For multiplication, the rule is "a(bc) = (ab)c"; in numbers, this means 2(3×4) = (2×3)4.

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2 years ago

Determine the equation of the altitude from A.

Rudik [331]

Answer:

y = - 3x + 11

Step-by-step explanation:

the altitude is a line from the vertex A drawn perpendicular to the opposite side BC

calculate the slope of BC using the slope formula

m = $\frac{y_{2}-y_{1} }{x_{2}-x_{1} }$

with (x₁, y₁ ) = B (- 7, 3 ) and (x₂, y₂ ) = C (- 1, 5 )

$m_{BC}$ = $\frac{5-3}{-1-(-7)}$ = $\frac{2}{-1+7}$ = $\frac{2}{6}$ = $\frac{1}{3}$

given a line with slope m then the slope of a line perpendicular to it is

$m_{perpendicular}$ = - $\frac{1}{m}$ = - $\frac{1}{\frac{1}{3} }$ = - 3

the equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept ) , then

y = - 3x + c ← is the partial equation

to find c substitute A (4, - 1 ) into the partial equation

- 1 = - 12 + c ⇒ c = - 1 + 12 = 11

y = - 3x + 11 ← equation of altitude from A

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2 years ago

Jack wants to fined out which can pineapples is the best buy. He has a choice of four different -sized cans. Which can has the l

Step2247 [10]

It would be D if loo at A and B there in the 1 dollar units and C is above so D would be in the 1 dollar unit but it has more ounces so that correct answer would be D

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3 years ago

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Tell which property you would use to solve the question. p - 4 = 8

Grace [21]

I THINK it's possibly distributive??

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3 years ago

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