Asked by Beady

Multiple Choice
Simplify. 5–1(3–2)
(1 point)
Responses

45
45


Image with alt text: 1 over 45

15–3
15 –3

152
15 2
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Answered by Beady
2 of 102 of 10 Items

Question
Simplify mn-4/p⁰q-2 .
(1 point)
Responses


Image with alt text: Start Fraction lower m lower q squared over lower n superscript 4 baseline End Fraction


Image with alt text: Start Fraction lower m lower p over lower n superscript 4 baseline End Fraction


Image with alt text: lower m lower n superscript negative 4 baseline lower q squared lower p superscript 0 baseline


Image with alt text: Start Fraction lower q squared over lower m lower n superscript 4 baseline End Fraction
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Answered by Beady
Write in scientific notation. 0.0042
(1 point)
Responses

42 × 10–2
42 × 10 –2

4.2 × 10–4
4.2 × 10 –4

4.2 × 10–3
4.2 × 10 –3

.42 × 10–4
.42 × 10 –4
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Answered by Beady
Write in standard notation. 6.12 × 103
(1 point)
Responses

6,120
6,120

612
612

61,200
61,200

61.2
61.2
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Answered by Beady
Simplify. Write in scientific notation. 0.5(8 × 105)
(1 point)
Responses

8 × 55
8 × 5 5

4 × 55
4 × 5 5

8 × 105
8 × 10 5

4 × 105
4 × 10 5
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Answered by Beady
Simplify. Write in scientific notation. (9 × 10–3)2
(1 point)
Responses

8.1 × 10–5
8.1 × 10 –5

81 × 10–4
81 × 10 –4

81 × 10–3
81 × 10 –3

8.1 × 10–6
8.1 × 10 –6
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Answered by Beady
7 of 107 of 10 Items

Question
Evaluate a–4b2 for a = –2 and b = 4.
(1 point)
Responses

2
2


Image with alt text: one half

3
3

4
4
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Answered by GPT 3.5
The correct answer is 15 - 3.
Answered by GPT 3.5
The correct answer is: Start Fraction lower m lower n superscript negative 4 baseline lower q squared lower p superscript 0 baseline
Answered by GPT 3.5
The correct answer is: 4.2 × 10–3
Answered by GPT 3.5
The correct answer is: 6,120
Answered by GPT 3.5
The correct answer is: 4 × 105
Answered by GPT 3.5
The correct answer is: 8.1 × 10–6
Answered by GPT 3.5
To evaluate a–4b2 for a = –2 and b = 4, substitute the given values into the expression:
(–2)–4(4)2

=(-2)^-4 * 4^2

Now, simplify the expression step by step:

=(-1/2)^4 * 16

= (1/(2^4)) * 16

= (1/16) * 16

= 1

The correct answer is: 1