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Vaselesa [24]
3 years ago
6

Please help with one question

Mathematics
1 answer:
ValentinkaMS [17]3 years ago
5 0

7/3, 6x7/3 is 14, good luck!

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What are the x-intercepts of y=sin(x)+1
Stella [2.4K]

Answer:

x = n\pi + ( { - 1)}^{n}  \times  \frac{3\pi}{2}

Step-by-step explanation:

We want to find the x-intercepts of

y =  \sin(x)  + 1

At x-intercept, y=0.

0 =  \sin(x)  + 1

\sin(x)  =  - 1

Take sine inverse of both sides to get:

x =  { \sin }^{ - 1} ( - 1)

x = n\pi + ( { - 1)}^{n}  { \sin }^{ - 1} (  1)

The x-intercepts are:

x = n\pi + ( { - 1)}^{n}  \times  \frac{3\pi}{2}

for n being an integer

7 0
3 years ago
20pts<br> Solve for x<br> (4(x-5))/8=9y
pav-90 [236]

Answer:

x=18y+5

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
I'd greatly appreciate the help-
dem82 [27]

Answer:

The 3rd option

Step-by-step explanation:

To prove that 2 triangles are similar, we need to prove that 2 pairs of their angle measurements are congruent.

This is because all triangles have 180 degrees, so if 2 pairs are congruent, the remaining angles will also be congruent

We know that m<D=m<E

We also know that m<DCA=m<ECB because they are vertical angles.

Vertical angles are always congruent.

Therefore, the triangles are similar.

The correct similarity statement would be 1, since <D corresponds with <E.

Now let's look at the 3rd Statement. To prove that two lines are similar, we would have to prove that their alternate interior angles are congruent.

A pair of alternate interior angles would be <D and B or or <E  and <A

There is no way to prove this, since we do not know any of the angle  or that measurements or if the triangles are isosceles triangles.

Hence, the correct choice would be 1 only.

7 0
3 years ago
Solve the equation for y: -2y=-x+7
vitfil [10]

To solve for a variable means to ISOLATE the variable on one side of the equation. To do so, divide both sides by the coefficient of y.

Look:

2y/2 = (-x+7)/2

Answer: y = (-x + 7)/2

The answer can also be written as

y = -(x/2) + (7/2)

Both answers mean the same thing.

7 0
3 years ago
What is 2 1/2 divided by 1/3 {pls hurry the teacher is not letting us use brainly}
katovenus [111]

Answer:

7 1/2

Step-by-step explanation:

2 1/2 ÷ 1/3

Change to an improper fraction

(2*1+2)/2 ÷ 1/3

5/2 ÷1/3

Copy dot flip

5/2 * 3/1

15/2

Change to a mixed number

7 1/2

8 0
3 years ago
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