What is the value of the expression 1/3^-5 ?
A. 243
B. 15
C.1/15
D.1/243

Answers

Answer 1
Answer: A 1/3^-5 = 3^5 = 243
Answer 2
Answer: A. is the answer to that

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Casey is reading a book for a book report. At 3:30 P.M., he started reading where he had left off the day before. At 5:30 P.M. he was on page 160. At 8:00 P.M. he was on page 280. If reading the book is modeled by a linear function, what page did Casey start on at 3:30 P.M.? A) 60 B) 64 C) 70 D) 74
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Find the value of x RT=4x+10 SW= 5x-20

Answers

Well, as you can see from the rectangle RT and SW should have equal lengths. So to find the value of x, we need to do.....

4x + 10 = 5x - 20
-x + 10 = -20              (Subtraction property of equality)
-x = -30                      (Subtraction property of equality)
x = 30                        (Division property of equality)

To check our work:

4(30)+10 = 130
5(30)-20 = 130

So, the value of x is 30!


What are the answers to the following.​

Answers

Answer:

Step-by-step explanation:

8-11 =-3\n\nb. -8+10 = 2\n\nc. 13+(-6) = 13-6 \n= 7\n\nd. 7-(-3)\n= 7+3\n=10\n\ne.-5-(-2)\n=-5+2\n=-3\n\nf. -15-(-25)\n=-15+25\n=10\n\ng. -3+(-6)-(-9)\n= -3-6+9\n=-9+0\n=0\n\nh.-20-(-9)-(-8)\n=-20+9+8\n-20+17\n=-3\n\n

-2+3-(-4)+(-5)\n-2+3+4-5\n= 1-1\n=0\n\n\nb. 18-(-10)+(-19)-8\n=18+10-19-8\n28-27\n=1\n\nc. 65+(-72)-(-45)\n= 65-72+45\n=-7+45\n=38

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

Answers

for two line segments to be parallel, their slopes must be equal.

Therefore slope of AB must be equal to slope of CD

which is, option 3
 (y4-y3)/(x4-x3)=(y2-y1)/(x2-x1)

the complete question in the attached figure

we know that

Two lines are parallel if they have the same slope.

So

Computing for the slope of line segment AB and line segment CD using the formula

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

step 1

Find the slope segment AB

A(x1, y1), B(x2, y2)

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

step 2

Find the slope segment CD

C(x3, y3), D(x4, y4)

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

step 3

If AB is parallel to CD

then

mAB=mCD

((y2-y1))/((x2-x1))=((y4-y3))/((x4-x3))

therefore

the answer is

((y2-y1))/((x2-x1))=((y4-y3))/((x4-x3))

Is -5/8+3/5 irrational number

Answers

Any number that you can completely write with digits is rational.

What infinity multiplied by pi

Answers

Infinity is not a real number. It is an idea of something without an end. Therefore, you cannot multiply it by pi or any other number.
Infinity multiplied by any real, finite, nonzero number is infinity.

What is the reciprocal of 2 3/8?

Answers

(see picture )
1. make 2 3/8 into a improper fraction
2. Fly the numerator and the denominator
the reciprocal is 19/8. Multiply 8 by 2 and add 3= 19/8