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3 years ago

I NEED THIS FOR MY TEST ASAP!

Mathematics

1 answer:

Reptile [31]3 years ago

4 0

Answer:

-1

Step-by-step explanation:

2(.5n-3)=n-0.25(12-12n)

first you distribute whatever is on the outside of the parenthesis to the inside of the parenthesis

1n-6=n-3+3n

then you combine like terms and end up with

1n-6=-3+4n

add 6 to each side to get

n=3+4n

subtract 4n from each side to get

-3n=3

divide -3 from each side to get

n=-1

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It cost $0.10 per coppy. stacy needs 257 coppies. hiw much much money does stacy need

ipn [44]

1 copy = $0.10

247 copies = $0.10 x 247 = $24.70

Answer: $24.70

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3 years ago

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el angulo de depresion de un barco desde un acantilado es de 54° y si se acerca 150m a la costa es de 72° ¿cual es la altura del

elena-s [515]

Answer:

Step-by-step explanation:

the angle of depression of a boat from a cliff is 54 ° and if it approaches 150m to the coast it is 72 ° what is the height of the cliff?

Check attachment for drawing

Using trigonometry on triangle ABC

tan x = opposite / adjacent

tan72 = h / 150

h = 150 × tan 72

h = 461.65 m

Verifique el archivo adjunto para dibujar

Usando trigonometría en el triángulo ABC

tan x = opuesto / adyacente

tan72 = h / 150

h = 150 × tan 72

h = 461.65 m

4 0

4 years ago

What is the area of a rectangle that is 1 1 4 1 4 1 1, start fraction, 1, divided by, 4, end fraction meters long and 3 4 4 3

hjlf

Answer:

4 11/16 m²

Step-by-step explanation:

The formula for the area of a rectangle = Length × Width

From the question:

Length = 1 1/4 m

Width = 3 3/4m

Area of the rectangle =

1 1/4 m × 3 3/4 m

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= 75/16 m²

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Area of the rectangle = 4 11/16 m²

7 0

3 years ago

Ope

ad-work [718]

The slope of the line is 4.83 and the y-intercept is 51

<h3>How to determine slope and the y-intercept?</h3>

From the graph, we can see that the line of the best fit touches the y-axis at y = 51

This means that:

The y-intercept is 51

The slope is then calculated as:

m = (y2 - y1)/(x2 - x1)

Using the points on the line, we have:

m = (80 - 51)/(6 - 0)

Evaluate

m = 4.83

Hence, the slope of the line is 4.83

Read more about line of best fit at:

brainly.com/question/25226042

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2 years ago

Select the correct answer from the drop-down menu. Find the solution set for the system of equations. 9x + 5y = 28 5x + 9y = 56

Aliun [14]

The correct answer is
x = -0.5
y = 6.5
or
(x, y) = (-0.5, 6.5)

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4 years ago

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