[PDF] Unit-8 Exponents and Powerspmd - NCERT





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Answer Key to 9.1 Practice – Exponential Growth

Answer Key to 9.1 Practice – Exponential Growth. 1) Yes. 2) Yes. 3) No. The variable must be in the exponent not the base. 4) No. The base




9.1 Corrective Assignment – Exponential Growth Name: ID: 1

Next to each function write “yes” if it is an exponential function. If the answer is “no”

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9.1 – Exponential Growth 1

Next to each function write “yes” if it is an exponential function. If the answer is “no”

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Chapter 9 – Polynomials. Answer Key. CK-12 Algebra I Concepts. 1. 9.1 Polynomials in Standard Form. Answers. 1. Not a polynomial (fractional exponent).

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[PDF] Exponents - Upper Darby School District

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[PDF] Topic 1

52,965 = (5 x 10,000) + (2 X 1,000) + (9 X 100) + (6 x 10) + (5 X 1) Practice 1-1 WakeMSTAAT Write each expression in exponential form 1 5 X 5 X 5 X 5 X Write your own number pattern that uses the same operations answers will vary

[PDF] 91 Exponents - Leon County Schools

1 Communicate Mathematical Ideas How is the time, in hours, related 9 4 9 to the power of 4, 9 raised to 4 th power Use an exponent to write each expression For Exercises 38–42, write the answer with and without using an exponent

[PDF] Unit-8 Exponents and Powerspmd - NCERT

(d) 10–9 Solution : The correct answer is (b) In examples 3 to 5, fill in the blanks to For a fixed base, if the exponent decreases by 1, the number becomes

[PDF] Numerical Expressionspdf - Waynesville R-VI School District

Explain your answer P 8 1 Copyright Use exponents to write 9,800,100 Answer: 0000+000-0-000+0+0000 Sample answers shown 1 6+3+9, squares

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4 times.

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×+×+ (×()=

a c × b c = ( a × b) c You can use this law with more than two expressions. If the exponents are the same, multiply the expressions by multiplying the bases and using the same exponent. For example, 2 8 × 3 8 × 7 8 = (2 × 3 × 7) 8 = 42 8 "Find a single repeater machine that will do the same work as each hook-up. (a) (b) (c) (d) (e) (f) o...cFor each hook-up, determine whether there is a single repeater machine that will do the same work. If so, describe or draw it. (a) (b) (c) (d) (e) oocShikha has an order from a golf course designer to put palm trees through a (× 2 3 ) machine and then through a (× 3 3 ) machine. She thinks she can do the job with a single repeater machine. What single repeater machine should she use? orcNeha needs to stretch some sticks to 25 2 times their original lengths, but her (×25) machine is broken. Find a hook-up of two repeater machines that will do the same work as a (×25 2 ) machine. To get started, think about the hookup you could use to replace the (×25) machine. ovcSupply the missing information for each diagram. (a)    (b)    (c) (d) tits ws"c.I If possible, find a hook-up of prime base number machine that will do the same work as the given stretching machine. Do not use (× 1) machines. (a)(b)(c)(d) Find two repeater machines that will do the same work as a (× 81) machine.  Find a repeater machine that will do the same work as a (× 1 8 ) machine. Find three machines that can be replaced with hook-ups of (× 5) machines. ƒThe left column of the chart lists the lengths of input pieces of ribbon. Stretching machines are listed across the top. The other entries are the outputs for sending the input ribbon from that row through the machine from that column. Copy and complete the chart. ( )+˜×() •÷ ≠(×

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Activity 1

To make ballot papers for the upcoming school elections, cut a sheet of paper in half. Stack the two pieces and cut them in half again. Stack the resulting four pieces and cut them in half again. Repeat this process, creating smaller sized ballot papers. Count the ballots and record the result in the table below.

Number of Cuts Number of

Ballot papers

1 2 2 4 3 8 416

Now, answer the following:

(a) Can you predict the number of ballot papers after n number of cuts? (b)Suppose you could make 40 cuts. How many ballot papers would you have? (c) How many cuts would it take to make enough ballot papers for

512 students at school?

(d)Suppose you start with a sheet of paper having area 324 cm 2 . Copy and complete the table to show the area of each ballot paper after each of the first 10 cuts.

OE ×+ -+“ )="×+ ÷

€ 0324
1162
281
34
5 6 7 8 9 10 Observe the table and write an expression which gives the area of ballot papers after n number of cuts on sheet of given area A. (e) If you want 512 ballot papers each having area 16 cm 2 , then what will be the area of starting paper? "÷)≠≠)ˆ+

1. To meke ballot papers cut a sheet of paper into three. Stack the

three pieces and cut the stack into three. Stack all the pieces and cut the stack into three again. so on. 1 st Step2 nd Step3 rd Step (a) Complete the table to show the number of ballot papers after five such steps: OE,znpy-xyw(nhaOE,znpy-xy"+ee-(y‡+hnp 13 2 3 4 5 (b)Suppose you continue this process. How many ballot papers would you have after 15 steps? How many would you have after × cuts? (c) How many steps would it take to make at least one lakh ballot paper?

“p-aai-pu

"mp-aa (1) In - ÷ ≠×≠- × = -  ,  is the _________ of ÷ and ×. (1)-7 is the _______ of 2 exponents -5 and -2. (2)Very large numbers like 6,250,000,000 can be conveniently written using _______. (3)The value of = × if × = 0. (4)Very small numbers can be expressed in standard form using _____ exponents.

Ž-ib

(5)The value of 3 -2 . (6)The value of -3 1 2 . (7)5 7 is read as 5 raised to the ______ of 7. (8)As the exponent decreases by 1, the value becomes ______ of the previous value. (9)a -m is the ______ inverse of a m . (10)1.24 × 10 -4 is known as the ________ form of 0.000124.

EXPONENTS AND POWERS 279UNIT-8

Rough Work

280 EXEMPLAR PROBLEMSMATHEMATICS

Rough Work


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