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3 years ago

What figure is comprised of two rays that share a common endpoint called a vertex?

1 answer:

4 0

<span>The answer is B. Angle. In order to form an angle two rays must meet at an endpoint called a vertex and lie in a plane. Appropriately, the word angle comes from the Greek word for corner. Generally speaking there are three types of angles; acute, obtuse, and straight angles.</span>

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Please help with number 5.<br> Select all that apply.

posledela

Answer: options A, B and C are correct

Step-by-step explanation:

Ray's daily pay,P in dollars is given by the function, p(h) = 10h with h representing the number of hours that he worked on that day. If he worked c hours on Thursday and this is 3 hours more than he worked on Friday, then the following statement is true. We substitute c and c-3 for Thursday and Friday into the given function, p(h) = 10h

A) 10c -3 represents Ray's pay in dollars on Friday.

B) 10c represents Ray's pay in dollars on Thursday.

C) p(c ) - p(c-3) represents how much more Ray's pay was on Thursday than on Friday

8 0

3 years ago

If u-ai + bj and v-ci + dj are vectors, then which of the following statements is not true?

alukav5142 [94]

Answer:

Option C

Step-by-step explanation:

Given that u-ai + bj and v-ci + dj are vectors

We have dot product

$u.v = (ai+bj).(ci+dj)$ hence inner product of u and v. So option a is true

The dot product of u and v is a scalar is true because dot product is always a scalar

The dot product of u and v is a vector. is false because dot product is only a scalar and has no direction and hence cannot be a vector

The dot product of u and v is given by the expression ac+bd

True because we multiply corresponding i components and j components and add.

So only C is not true.

7 0

3 years ago

Elements can have a positive charge, a negative charge, or no charge. Determine the magnitude of each element given below. Eleme

Ipatiy [6.2K]

Answer: $||q_{A}||=5$ , $||q_{B}||= 3$ , $||q_{C}|| = 0$ .

Step-by-step explanation:

The magnitude is an absolute value by definition. Hence, each element has the respective value:

$||q_{A}|| = 5\\||q_{B}|| = 3\\||q_{C}|| = 0\\$

5 0

3 years ago

The longest side of a triangle is 5 in longer than the shortest side. The medium side is 4 in longer than the shortest side. If

aliina [53]

Answer: Shortest side = 6 inches, Medium side = 10 inches and Longest side = 11 inches

Step-by-step explanation: The perimeter has been given as 27 inches, and we know that the perimeter of any given figure is the addition of all sides. The sides are unknown yet, but we have clues as follows;

The longest side is 5 inches longer than the shortest side, hence the longest side equals s + 5. The medium side is 4 inches longer than the shortest side, hence the medium side equals s+ 4. Th shortest side remains s.

Therefore with the perimeter given as 27, we now have the expression;

s + s + 4 + s + 5 = 27

3s + 9 = 27

Subtract 9 from both sides of the equation

3s = 18

Divide both sides of the equation by 3

s = 6

Hence, the sides of the triangle are given as 6, (6+ 4) and (6+ 5), which is,

6 inches, 10 inches and 11 inches.

7 0

3 years ago

5m + 9n if m = -7 and n = 4

dusya [7]

Answer:

Step-by-step explanation:

5m + 9n

5(-7) + 9(4)

-35 + 36

8 0

3 years ago

Read 2 more answers