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3 years ago

Use the order of operations to evaluate the expression. 4 × ( 3 4 − 1 2 ) + 3 × 6

Mathematics

2 answers:

Vlad [161]3 years ago

7 0

Answer:

Step-by-step explanation:

4 × ( 3/ 4 − 1/ 2 ) + 3 × 6

PEMDAS

Parentheses first

4 × ( 3/ 4 − 2/4 ) + 3 × 6

4 × ( 1/4 ) + 3 × 6

Then multiply and divide from left to right

1 + 18

Sloan [31]3 years ago

3 0

Answer:

Step-by-step explanation:

= 4 * (3/4 − 2/4) + 3 * 6

= 4 * (1/4) + 3 * 6

= 1 + 18

= 19

Hope this helps, and please mark me brainliest if it does!

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Write a rule for the nth term of the geometric sequence if r = 1/4 and a3 = 2.

GarryVolchara [31]

Answer:

$a_{n} = 32(\frac{1}{4})^{n-1}$

Step-by-step explanation:

The nth term of a geometric sequence is given by the following equation.

$a_{n+1} = ra_{n}$

In which r is the common ratio.

This can be expanded for the nth term in the following way:

$a_{n} = a_{1}r^{n-1}$

In which $a_{1}$ is the first term.

This means that for example:

$a_{3} = a_{1}r^{3-1}$

$a_{3} = a_{1}r^{2}$

$2 = a_{1}(\frac{1}{4})^{2}$

$2 = \frac{a_{1}}{16}$

$a_{1} = 32$

Then

$a_{n} = 32(\frac{1}{4})^{n-1}$

4 0

3 years ago

Alicia bought a frozen lemonade for $3.71. She gave the clerk a $5 bill. How much change should she receive?

Grace [21]

5 - 3.71 = $1.29
hope this helps! :)

8 0

2 years ago

Read 2 more answers

Which expressions are equivalent to -3(2+7) A: -6+21 or B:-21+6

Neporo4naja [7]

<u>Answer:</u>

None

<u>Explanation:</u>

-3(2+7) = -3×9 = -27

-6+21 = 15

-21+6 = -15

Hence there is no equivalence

3 0

3 years ago

Does a plane have a definite beginning and end?

Lorico [155]

Technically no. It extends forever in the X and Y axis, but does not have a Z axis.

5 0

3 years ago

keon ha some change in his pocket then a friend loaned him 0.25 now keon has 1.45 in his pocket which equation can be used to fi

Studentka2010 [4]

Answer:

$1.45-$0.25=x

x=$1.20

Step-by-step explanation:

3 0

3 years ago