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4 years ago

−3x+9−2x=−12−5xminus

Mathematics

1 answer:

scoundrel [369]4 years ago

8 0

Answer:

x = 21/5 + m, m E R

Step-by-step explanation:

Solving Steps:

-3x=9 - 2x = -12 - 5m

collect the like terms

-5x + 9 = - 12 - 5m

move constant to the right

-5x = - 21 - 5m

Divide both sides by -5

x 21/5 + m

the final solution

x = 21/5 + m, m E R

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Select the graph of y=cot x.

Kisachek [45]

Because of the vertical asymptote and the change in concavity, we conclude that the correct option is B.

<h3>Which is the graph of cotangent of x?</h3>

Remember that cot(x) = 1/tan(x).

Then we can rewrite:

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cot(0) = cos(0)/sin(0) = 1/0

Then we have a vertical asymptote that tends to ± infinity.

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2 years ago

A fruit stand sells apples, peaches and tomatoes. Today, they sold 4 apples for every 5 peaches. They sold 2 peaches for every 3

Brrunno [24]

Answer:

He sold 32 apples, 40 peaches and 60 apples.

Step-by-step explanation:

We are given that

4 apples are sold every 5 peaches and

3 tomatoes are sold every 2 peaches.

i.e. the ratio is apples: peaches = 4 : 5 ...... (1)

and the ratio peaches: tomatoes = 2 : 3 ...... (2)

Peaches are the common link here in both the ratio terms.

Let us make the peaches value in both the <em>ratio as 10 </em>to make it equal in both the ratio terms.

Multiply (1) by 2 and (2) by 5:

The ratio becomes;

apples:peaches = 8:10

peaches: tomatoes = 10:15

In other words, the ratio becomes:

apples:peaches:tomatoes = 8:10:15

Let the number of apples = $8x$

Let the number of peaches = $10x\\$

Let the number of tomatoes = $15x$

We are given that total fruits are = 132

$\Rightarrow 8x+10x+15x = 132\\\Rightarrow 33x = 132\\\Rightarrow x =4\\$

So, number of apples sold = $8 \times 4 = 32$

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Number of tomatoes sold = $15 \times 4 = 60$

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3 years ago

Please can you factor this equation.

Mademuasel [1]

The answer is: 2y^2-20y+12

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4 years ago

In a right triangle, the value of cos B = 3/5. What is the value of sin B?

ozzi

Answer:

4/5

Step-by-step explanation:

cos B = 3/5

cos Ф = adjacent/hypothesis

hypothesis ² = adjacent² + opposite²

5²= 3²+ o²

25 = 9+o²

25-9=o²

16 = o²

√16 = o = 4

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The answer is $6.80 because you need to divide both by 12 then times by 10

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3 years ago

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