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3 years ago

Please I need help the answer please

Mathematics

2 answers:

almond37 [142]3 years ago

7 0

Answer:

Negative times positive = negative

negative x negative = positive

6 x 12 = 72

6 x -12 = -72

Hope this helps

Step-by-step explanation:

Volgvan3 years ago

5 0

Answer:-72

Step-by-step explanation:

(6)*(-12)

-72

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Start with the equation 5 • 0 = 0 to explain why 5 • -2 must equal -10. Drag descriptions and equations to the table to complete

lorasvet [3.4K]

Answer:

Step-by-step explanation:

1. The problem is telling us to start with the equation 5*0=0

2. Substitute. Any number plus its opposite is zero. Since the opposite of 10 is -10, 10+(-10)= 0: 5(10+-10)=0

3. 3 Use the distributive property. In other words multiply 5 by 10 and 5 by -10: 4·10+5·-10=0

4. Multiply. perform the first multiplication of step 4: 5·10=50, so: 50+4·-10=0

5. Subtract 50 from both sides. 50-50+5·-10=0-50; simplify the left side: 0+5·-10=0-40

5·-10=0-50

6. Simplify to solve for 5·-10. Simplify the right side: 5·-10=-50

____________________________________________________________

Given. 5·0=0

Step 2 Substitute. Any number plus its opposite is zero. 5(10+-10)=0

Step 3 Use the distributive property. 5·10+5·-10=0

Step 4 Multiply. 40+4·-10=0

Step 5 Subtract 40 from both sides. 5·-10=0-50

Step 5 Simplify to solve for 4·-10. 5·-10=-50

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

I Really hopes this helppps uu ! <3

8 0

2 years ago

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leonid [27]

Answer:

It is B. (0,1)

Step-by-step explanation:

4 0

1 year ago

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3 years ago

The mean length of 5 childrens' index finger is 5.6cm.

Brilliant_brown [7]

The mean length (rounded to 2 DP) of these 8 people's index finger is 5.83

<h3>What is the mean length (rounded to 2 DP) of these 8 people's index finger?</h3>

The given parameters are:

<u>Children</u>

Mean = 5.6 cm

Frequency = 5

<u>Adult</u>

Mean = 6.2 cm

Frequency = 3

The mean length of these 8 people's index finger is calculated as:

$\bar x = \frac{\sum fx}{\sum f}$

So, we have

Mean = (5.6 * 5 + 6.2 * 3)/(5 + 3)

Evaluate

Mean = 5.83

Hence, the mean length (rounded to 2 DP) of these 8 people's index finger is 5.83