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3 years ago

Use distribute property and simplify Help me please

Mathematics

2 answers:

koban [17]3 years ago

6 0

Step-by-step explanation:

must calculate the number in ( ) first before calculate the number in [ ]

- - > +

+ + > +

+ - > -

- + > -

stellarik [79]3 years ago

5 0

Answer:

104

155

180

Step-by-step explanation:

an easy way is to solve what is in the parenthesis then multiply by the outside number

but if you need to use the distributive property:

1. 4 x (20 - -6)

(4 x 20) - (4 x -6) = 80 - -24 = 80 + 24 = 104

2. -5 x (24 - -7)

(-5 x 24) - (-5 x -7) = -120 - 35 = 155

3. 12 x (-30 + 45)

(12 x -30) + (12 x 45) = -360 + 540 = 180

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I NEED HELP PLZ!!!!!!!!!!!! Find the volume of the prism.

GrogVix [38]

Answer:

210 cm cubed

Step-by-step explanation:

5 x 6 x 7 = 210

7 0

2 years ago

the letters of the word independent are written on individual card and the cards are put into a box a card is selected and then

puteri [66]

Answer:

The probability of obtaining the letter p twice is 1/121

Step-by-step explanation:

Probability of Recurring Events

There are 11 letters in the word 'independent', one of which is the letter 'p'.

When those letters are written on individual cards and they are put into a box, there are 11 different choices to pick at random.

This means the individual probability of getting a 'p' is:

$\displaystyle P_1=\frac{1}{11}$

The card is reinserted into the box, leaving the sample space unaltered, thus the second card has the same probability:

$\displaystyle P_2=\frac{1}{11}$

We'll use the multiplication rule. Just multiply the probability of the first event by the second.

$\displaystyle P=P_1*P_2=\frac{1}{11}*\frac{1}{11}$

$\displaystyle P=\frac{1}{121}$

The probability of obtaining the letter p twice is 1/121

6 0

2 years ago

If a=3, b=-5 fond the value of (2a+3b) (4a sq- 6ab+9b square)

snow_lady [41]

Step-by-step explanation:

(2a+3b)(4a²-6ab+9b²

(2a+3b){(2a)²-2a×3b+(3b)²}

Because (a³+b³)=(a+b)(a²-ab+b²)

Therefore,

(2a+3b){(2a)²-2a×3b+(3b)²}

=(2a)³+(3b)³

By substituting the values , we get

(2a)³+(3b)³
(2×3)³+(3×(-5))³
6³+(-15)³
216+(-3375)
216-3375
-3159

4 0

3 years ago

Help me pls ty :D 助けてください

beks73 [17]

Answer: Me don’t know

Step-by-step explanation:

6 0

2 years ago

Read 2 more answers

Use the commutative law of addition to find an expression equivalent to 7(c+3)

Vlada [557]

Answer:

7c+21

Step-by-step explanation:

multiply 7 by c and 7 times 3

7c and 21

7c+21

5 0

3 years ago

Use distribute property and simplify Help me please​

Use distribute property and simplify Help me please