a store sells small notebooks for $7 and large notebooks for $14. if a student buys 6 note books for $63, how many notebooks each did she buy

Answers

Answer 1

Answer: The answer is 3 of each. 3X7=21; 14X3=42, and 42+21= 63.

Answer 2

Answer: She bought 3 large notebooks and 3 small notebooks, because 3 * 14 = 42 and 3 * 7 = 21 and 21 + 42 =63

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A rectangle has a width of 10 centimeters. The rectangle's length is 4 times its width. What is the perimeter of the rectangle?

Circle J is located in the first quadrant with center (a, b) and radius s. Felipe transforms Circle J to prove that it is similar to any circle centered at the origin wuth radius r. Which sequence of transformations did Felipe use? a. translate circle J by(x+a, y+b) and dilate by a factor of t/s
b. translate circle J by (x+a, y+b) and dilate by a factor of s/t
c. translate circle J by (x-a, y-b) and dilate by a factor of t/s
d. translate circle J by (x-a, y-b) and dilate by a factor of s/t

Answers

The correct answer for the question that is being presented above is this one: "c. translate circle J by (x-a, y-b) and dilate by a factor of t/s." Circle J is located in the first quadrant with center (a, b) and radius s. Felipe transforms Circle J to prove that it is similar to any circle centered at the origin with radius r.

A sum of 17 and a difference of 5?

Answers

11 and 6
11+6=17
11-6=5

Simplify 5t + (t - 3) - [(7t + 5) - (8 - 3t)].

Answers

This process is:

Distribute of the Negative Sign:
5t+t−3+−1(7t+5−(8−3t))
5t+t+−3+−1(7t)+(−1)(5)+(−1)(−8)+−1(3t)
5t+t+−3+−7t+−5+8+−3t
Now simple, Just Combine Like Terms:
5t+t+−3+−7t+−5+8+−3t
(5t+t+−7t+−3t)+(−3+−5+8)
−4t

-4t would be the answer.

~Evie

I presume that this is talking about simplification with the rule of PEMDAS. First, look at the parenthesis and brackets. Let's do the [(7t + 5) - (8 - 3t)] part first. The parenthesis can go away on the inside if you distribute the negative in (8 - 3t), which flips the signs of those. You should then have [7t + 5 - 8 + 3t], then work it out to form just (10t - 3). The negative will also carry for the brackets that were there before, so - (10t - 3) turns into -10t + 3. Now, you just have 5t + t - 3 - 10t + 3. Work that out to get your final answer of -4t.

-4t is the answer.

Divide using synthetic division $(45x^(5)+6x^(4) +3x^(3) +8x+12)$ ÷ $(3x-2)$

Answers

Answer:

15x4 + 12x3 + 9x2 + 6x + 20/3 + 76/3(3x−2)

The coordinates of the endpoints of AB and CD are A(x1, y1), B(x2, y2), C(x3, y3), and D(x4, y4). Which condition proves that AB||CD ?

Answers

Based on the concept of coordinates and the available information, the correct answer is option D. (y2 - y1)(y4 - y3) = (x2 - x1)(x4 - x3)

What is Coordinates?

Coordinate is a mathematical term that is used to describe the values on which mathematical operations occur in an algebraic expression.

In this case, to determine if AB is parallel to CD check if the slopes of the two lines are equal since parallel lines have the same slope.

The slope of a line passing through two points (x1 y1) and (x2 y2) is given by the formula:

m = (y2 - y1) / (x2 - x1)

So the slope of line AB is:

m_AB = (y2 - y1) / (x2 - x1)

And the slope of line CD is:

m_CD = (y4 - y3) / (x4 - x3)

If AB is parallel to CD then the slopes m_AB and m_CD should be equal.

Therefore the condition to prove that AB is parallel to CD is:

m_AB = m_CD

If the condition m_AB = m_CD is true it proves that line AB is parallel to line CD.

Hence, in this case, the correct answer is option D. (y2 - y1)(y4 - y3) = (x2 - x1)(x4 - x3)

Learn more about Coordinates here: brainly.com/question/17206319

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The option is in the image attached to the answer.

Answer:

c= -1

Step-by-step explanation:

What is the standard form of the number in the calculators display?2.3e-9
A: 0.00000000023
B: 0.0000000023
C: 2,300,000,000
D: 23,000,000,000

Answers

The answer is gonna be B because its not a -9 only would be a positive.

Your welcome :)

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