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3 years ago

15

How to Graph 5x+4y=-20

1 answer:

Helga [31]3 years ago

7 0

Find intecepts
where x=0, then y=-5
when y=0, then x=-4

start from center, go 4 units left along the x axis and plot a point
go backto center, go 5 units down along the y axis and plot a point

connect the points and you get the line

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Suppose that a box contains one fair coin and one coin with a head on each side. suppose that a coin is selected at random and t

lukranit [14]

There is a 50% chance it is the fair coin

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4 years ago

Two ropes, AD and BD, are tied to a peg on the ground at point D. The other ends of the ropes are tied to points A and B on a fl

Lisa [10]

Answer: 5(√3-1) unit.

Step-by-step explanation:

Since, By the below diagram,

For triangle BDC,

We can write,

$tan 30^{\circ}=\frac{BC}{DC}$

⇒ $\frac{1}{\sqrt{3}}=\frac{BC}{5\sqrt{3}}}$

⇒ $\sqrt{3}=\frac{5\sqrt{3}}{BC}$

⇒ $BC=\frac{5\sqrt{3} }{\sqrt{3} }$

⇒ $BC=5\text{ unit}$

Now, In triangle ADC,

$tan45^{\circ}=\frac{AC}{DC}$

⇒ $1=\frac{AB+BC}{DC}$

⇒ $1=\frac{DC}{AB+BC}$

⇒ $1=\frac{5\sqrt{3}}{AB+5}$

⇒ $AB+5=5\sqrt{3}$

⇒ $AB=5\sqrt{3}-5=5(\sqrt{3}-1)\text{ unit}$

8 0

3 years ago

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For her softball uniform Meredith has a green, white, or striped jerseyShe also white, green, striped shortIf Meredith jersey an

lilavasa [31]

Answer:

probability that she'll go with a striped jersey and green shorts = ¹/₉

Step-by-step explanation:

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probability that she'll go with a striped jersey and green shorts = ¹/₃ x ¹/₃ = ¹/₉

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The sum of two times a number and six is equal to two times the sum of a number and three

Serhud [2]

2x+6=2(x+3)

Step-by-step explanation:

let x represent the unknown number

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3 years ago

The formula for velocity of an object is the equals d over t where he is a velocity of the object t is the distance traveled and

butalik [34]

Answer:

$(a)\ t =\frac{d}{v}$

$(b)\ d = vt$

Step-by-step explanation:

<em>The question is mixed up with details of another question. See comment for original question</em>

<em />

<u>Given</u>

$v = \frac{d}{t}$

$v \to velocity$

$d \to distance$

$t \to time$

Solving (a): Solve for time

We have:

$v = \frac{d}{t}$

Cross multiply

$t * v = d$

Make t the subject

$t =\frac{d}{v}$

Solving (b): Solve for distance

We have:

$v = \frac{d}{t}$

Cross multiply

$d = v * t$

$d = vt$

7 0

3 years ago