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3 years ago

I need help with -1 + (-4) + (-9) PLEASE DO THE STEP BY STEP EXPLANATION

2 answers:

8 0

Answer: -14
Remove parenthesis to -1-4+(-9)
When there is a “+” in front of an expression in parenthesis, the expression remains the same, so;
-1-4-9 calculate the sum of the negative numbers
-1-4= -5, -5-9= -14

Lera25 [3.4K]3 years ago

5 0

Answer:

yes

Step-by-step explanation:

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3 years ago

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3 years ago

Find the length of BC if ABC is equilateral with AB=12x+4 and AC=8x+12

Citrus2011 [14]

Answer:

BC = 28

Step-by-step explanation:

Since the triangle is equilateral then all 3 sides are congruent.

Equate AB and AC and solve for x, that is

12x + 4 = 8x + 12 ( subtract 8x from both sides )

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4 0

3 years ago

14 T 1,000 lb. + 2 T 1,000

Olegator [25]

The answer will be 17 tons.

Step-by-step explanation:

Since we have given that

14 T 1,000 lb. + 2 T 1,000 lb.

As we know that

$1\ ton=2000\ lbs\\\\14\ tons=2000\times 14\ lbs\\\\14\ tons=28000\ lbs$

So, 14 T 1,000 lb. is given by

$28000\ lbs+1000\ lbs\\\\=29000\ lbs$

Similarly,

$1\ ton=2000\ lbs\\\\2\Tons=2\times 2000\ lbs\\\\2\ tons=4000\ lbs$

so,

2T 1,000 lb. is given by

$4000+1000\\\\=5000\ lbs$

So, 14 T 1,000 lb. + 2 T 1,000 lbs is given by

$29000+5000\\\\=34000\ lbs\\\\=\frac{34000}{2000}\\\\=17\ tons$

Hence, the answer will be 17 tons.

6 0

3 years ago