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4 years ago

Solve for x 2x+10 divided by 4=y

Mathematics

2 answers:

kogti [31]4 years ago

8 0

Be more specific this makes no sense

Rzqust [24]4 years ago

4 0

(2x + 10)/4 = y
multiply both sides by 4
2x + 10 = 4y
subtract 10 from both sides
2x = 4y - 10
divide both sides by 2
x = (4y - 10)/2 OR x = 2y - 5

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A spinner is divided into 8 section of equal size. The sections are numbered 1 through 8. Use this information to determine the

olga_2 [115]

1) 1/8

2) 1/2

Step-by-step explanation:

First of all, we notice that the spinner is divided into 8 sections of equal size.

So the number of sections is

n = 8

Secondly, we note that each section has the same size: this means that the probability of the spinner landing on each section is the same.

The probabilty of a certain event A to occur is given by

$p(A)=\frac{a}{n}$

where

a is the number of successfull outcomes (in which A occurs)

n is the total number of possible outcomes

Here we want to find

$p(7)$ = probability that the spinner lands on section 7

Here we have:

$a=1$ (only 1 outcome is successfull: the one in which the spinner lands on section 7)

$n=8$

Therefore, the probability is

$p(7)=\frac{1}{8}$

Here we want to find the probability that the spinner lands on an even numbered section.

As before, the total number of possible outcomes his:

$n=8$

which corresponds to: 1, 2, 3, 4, 5, 6, 7, 8

The even-numbered sections are:

2, 4, 6, 8

So, the number of successfull outcomes is

$a=4$

Because there are only 4 even-numbered sections.

Therefore, the probability that the spinner lands on an even numbered section is:

$p(e)=\frac{a}{n}=\frac{4}{8}=\frac{1}{2}$

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3 years ago

X+ 3(x+2) = 2 x = Answer

deff fn [24]

Answer: x=-1
Step by step shown below:

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Round 552,945 to the place value

Lostsunrise [7]

If rounded to the nearest 100,000th it would be 600,000

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Dovator [93]

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→ Subtract both sides by sin x

$\cos ^2x-\sin ^2x=2\sin xcosx-\sin x$

→ Take sin x as a common factor in the right side

$\therefore\cos ^2x-\sin ^2x=\sin x(2\cos x-1)$

From the graph, the equation has 4 solutions, the intersection points between the 2 graphs

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1 year ago

Prove the following relations: 1) (1 - cos²A) (1 + tan²A) = tan²A

liberstina [14]

Step-by-step explanation:

(1 - cos²A) (1 + tan²A) = tan²A

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3 years ago

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