3 years ago

Make a ten to add. 3+7+9=

Mathematics

1 answer:

andre [41]3 years ago

7 0

You can add 7+3 then add 9 ad you get 19

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Simplify 3^2 x 3^4 x 3^6 A3^10 B3^12 C3^48 D3^0

kvasek [131]

Answer:

$\boxed{\sf\: B)\:3^{12}}$

Step-by-step explanation:

$\sf 3^2\times \:3^4\times \:3^6$

<u>Apply exponent rule:</u>

$\hookrightarrow \boxed{\sf a^b\times \:a^c=a^{b+c}}$

$\sf 3^2\times \:3^4\times \:3^6$

$\sf 3^{2+4+6}$

Add the numbers:

$\sf 2+4+6=12$

$\sf \:3^{12}$

________________________________

7 0

2 years ago

GalinKa [24]

A. 515
b. 43
c. 3510
d. 1.9705

4 0

2 years ago

A one-quart container of oil costs 89¢. A case of 12 one-quart containers costs $8.64. How much is saved per container by buying

zaharov [31]

Take the amount for the case and divide by 12
8.64/12=0.72
0.89-0.72= 0.17 saved per each quart

5 0

2 years ago

Suppose a - b = 0a−b=0a, minus, b, equals, 0. Which one of these expressions equals a+ba+ba, plus, b?

Lelu [443]

First we have the following equation:
a - b = 0
We clear one of the variables depending on the other:
a = b
Therefore we have to for the following expression:
a + b
We can substitute one of the variables, obtaining:
a + a = 2a
Equivalently:
b + b = 2b
Answer:
a + b = 2a
or
a + b = 2b

6 0

3 years ago

A research report claims that 20% of all individuals use Firefox to browse the web. A software company is trying to determine if

algol [13]

Answer:

Reject H0

Step-by-step explanation:

Z = -2.474873734

survey (positive) 26

n (total) 200

p 0.2

p /point est. 0.13

POPULATION(min) 4000

np >= 5 ? YES 40

n(1-p) >= 5 ? YES 160

Sample is valid

Confidence Level - "P" values

99% 2.58

Confidence Interval - "P" values

(0.0686 , 0.1914 )

Reference=0.2 Reject H0

4 0

2 years ago