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adell [148]
3 years ago
11

Select the statement that correctly describes the expression below.

Mathematics
1 answer:
timama [110]3 years ago
7 0

Answer:

B

Step-by-step explanation:

The product of the difference of x and 5 and the sum of x and 3

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I need help with this problem ASAP!
Karo-lina-s [1.5K]

Form a right angle triangle joining both given points to the origin, we get:

Perpendicular = 2 ( distance is always positive)

Base = 4 ( same logic)

Applying Pythagorus theorem

Hypotenuse = root of ( perpendicular squared + base squared)

Hypotenuse = root of 20 = 2 * root 5

Using x instead of theta

Sin x = perpendicular/hypotenuse

Cos x = base/hypotenuse

Sin x = -1/ root 5

Cos x = -2/ root 5

High probability of this answer being wrong.

Double check recommended.

4 0
3 years ago
1. Solve for y=. 6 + 2y = 12.​
Dimas [21]

Answer:

y=3

Step-by-step explanation:

8 0
3 years ago
Triangle ABC is an obtuse triangle with the obtuse angle at vertex B. Angle A must be
kvv77 [185]
Answer:

Angle A must be acute.

Explanation:

Both angle A and C must be acute. The sum of the angles in a triangle is 180°.

An obtuse angle is more than 90°, so the sum of the remaining 2 angles has to be less than 90°.

Note that it is impossible to have:

<span>2 right angles in a triangle, because <span>90°+90°=180</span>° and the third angle still needs to be added.1 obtuse and 1 right angle in a triangle, their sum is more than 180°2 obtuse angles in a triangle, their sum is more than 180°</span>

It is possible to have an obtuse-angled isosceles triangle, but the vertex angle must be obtuse and the equal base angles will be acute.

8 0
3 years ago
Rewrite the expression as an algebraic expression in x.<br> tan(sin−1(x))
solmaris [256]
Let tan^{-1} x=\alpha
Then it can be shown by using a right-angled triangle and the rule of Pythagoras that \alpha= tan^{-1} \frac{x}{ \sqrt{1-x^{2}} }
Therefore
tan(sin ^{-1} (x))=\frac{x}{ \sqrt{1-x^{2}} }
7 0
4 years ago
Suppose n is an integer. Is n2 +n always, sometimes, or never an even integer? Explain.
romanna [79]
Is the 2 an exponent? if so, it is always an even integer.
4 0
3 years ago
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