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4 years ago

PLEASE HELP! I’m so confused. Explain your answer, thanks!

Mathematics

2 answers:

kakasveta [241]4 years ago

5 0

Answer:

y+2 = 3/4 (x-1)

Step-by-step explanation:

We have a slope and a point, we can use the point slope form of the equation for a line

y-y1 = m(x-x1)

where m is the slope and (x1,y1) is the point

y--2 = 3/4(x-1)

y+2 = 3/4 (x-1)

kolezko [41]4 years ago

3 0

Answer:

The equation for a line is written as Y - Y1 = slope(x-X1)

You are given (1,-2) as a point, so x1 = 1 and y1 = -2 and the slope is given as 3/4

replace those values in the equation:

y - (-2) = 3/4(x-1)

When you have a minus and a negative number as above it becomes an addition.

The equation becomes:

y+2 = 3/4(x-1)

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Determine whether the sequence below is a geometric sequence and, if so, find a formula that describes the sequence.

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2, 4, 8, 16, –32, 64, …

Common ratio = 4/2 = 2

16/8 = 2

But -32/16 = -2.

The ratio is not constant, hence it is not a geometric.

D. The sequence is not a geometric sequence.

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3 years ago

Charles can ride his bike 4 miles in 20 minutes. Which of the following ratios show the number of miles to minutes Charles can r

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Answer:

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Step-by-step explanation:

He rode one mile in 5 minutes because 4/4 is 1 and 20/4 is 5

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4 years ago

You are working for a company that designs boxes, bottles and other containers. You are currently working on a design for a milk

ra1l [238]

Volume is a measure of the quantity of substance a given object can contain. The required answers are:

1.1 The volume of each milk carton is 360 $cm^{3}$ .

1.2 The area of cardboard required to make a single milk carton is 332.6 $cm^{2}$ .

1.3 Each carton can hold 0.36 liters of milk.

1.4 The cost of filling the 200 cartons is R 86.40.

The volume of a given shape is the amount of substance that it can contain in a 3-dimensional plane. Examples of shapes with volume include cubes, cuboids, spheres, etc.

The area of a given shape is the amount of space that it would cover on a 2-dimensional plane. Examples of shapes to be considered when dealing with the area include triangle, square, rectangle, trapezium, etc.

The box to be considered in the question is a cuboid. So that;

Volume of cuboid = length x width x height

Thus,

1.1 The volume of each milk carton = length x width x height

= 6 x 6 x 10

= 360

The volume of each milk carton is 360 $cm^{3}$ .

1.2 The total area of cardboard required to make a single milk carton can be determined as follows:

i. Area of the rectangular surface = length x width

= 6 x 10

= 60

Total area of the rectangular surfaces = 4 x 60

= 240 $cm^{2}$

ii. Area of the square surface = side x side = s²

= 6 x 6

Area of the square surface = 36 $cm^{2}$

iii. There are four semicircular surfaces, this implies a total of 2 circles.

Area of a circle = $\pi r^{2}$

where r is the radius of the circle.

Total area of the semicircular surfaces = 2 $\pi r^{2}$

= 2 x $\frac{22}{7}$ x $(3)^{2}$

= 56.57

Total area of the semicircular surfaces = 56.6 $cm^{2}$

Therefore, total area of cardboard required = 240 + 36 + 56.6

= 332.6 $cm^{2}$

The area of cardboard required to make a single milk carton is 332.6 $cm^{2}$ .

1.3 Since,

1 $cm^{3}$ = 0.001 Liter

Then,

360 $cm^{3}$ = x

x = 360 x 0.001

= 0.36 Liters

Thus each carton can hold 0.36 liters of milk.

1.4 total cartons = 200

Total volume of milk required = 200 x 0.36

= 72 litres

But, 1 kiloliter costs R1 200. Thus

Total volume in kiloliters = $\frac{72}{1000}$

= 0.072 kiloliters

The cost of filling the 200 cartons = R1200 x 0.072

= R 86.40

The cost of filling the 200 cartons is R 86.40.

For more clarifications on the volume of a cuboid, visit: brainly.com/question/20463446

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2 years ago

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joja [24]

The practical domain of time is t ∈ [0, 4.25s].

The set of values that make feel in a particular context is referred to as the sensible area.
All feasible solutions are addressed by way of theoretical domains and stages.
domain names and stages restrict the solution sets such that they may be realistic in the parameters given
.The ball begins its motion at time t = 0s.
To locate the time while the ball hits the floor,
we solve the equation:
h(t) = -16t² + 68t
h(t) = 0
-16t² + 68t = 0
t(-16t + 68) = 0
t = 0 and -16t + 68 = 0.
16t = 68
t = 68/16
t = 4.25
h(t) is non-negative within the interval [0, 4.25].
Hence, the practical domain is 0 ≤ t ≤ 4.25 s.

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In a cookie mix, we find chocolate chip cookies, walnut cookies, and ginger cookies in a ratio of

Nana76 [90]

Answer:

Step-by-step explanation:

1x = number of chocolate chip cookies

3x = number of walnut cookies

5x = number of ginger cookies

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x = 8

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3 years ago