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stich3 [128]
3 years ago
13

your friend says that since -a is the opposite of a , the opposite of a number is always negative describe and correct the error

Mathematics
1 answer:
Scrat [10]3 years ago
6 0

Answer:

He is incorrect due to the fact that the opposite of a negative number is not just another negative number. For instance, the opposite of -2 is actually positive.

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7/19 en numero decimal​
Nataly [62]

Answer:   0.368421053

Step-by-step explanation:  19/7=0.368412053 :-)

5 0
3 years ago
What is the length of the side opposite the 30° angle?
Sladkaya [172]

Answer:

5/√3 inches long.

Step-by-step explanation:

The property is that the lengths of the sides of a 30-60-90 triangle are in the ratio 1:2:√3. Thus if you know that the side opposite the 60 degree angle measures 5 inches then then this is √3 times as long as the side opposite the 30 degree so the side opposite the 30 degree angle is 5/√3 inches long.

8 0
3 years ago
in the diagram,the pyramid has a rectangular base.ifthe pyramid has a volume of 176 cmcube and the height of 11cm ,find the valu
SOVA2 [1]
The formula of pyramid:
v =  \frac{1}{3} ah
Where v is the volume, a is the base area and h is the height.

We can then put the given information into the formula:

176 = (1/3)(3x × x)(11)

(176 × 3) / 11 = 3x^2

3x^2 = 48

x^2 = 48/3

x = _/16

x = 4
3 0
3 years ago
3. At a bargain store, Tanya bought 3 items that each cost the same amount. Tony bought 4 items that each cost the same amount,
Inessa [10]
(a) 3x=4(x-2.25) (or simplified: 3x=4x-9)

(b) 3x=4x-9
0=x-9
x=$9

(c) 3x9=27
4x9=36
36-9=27
and 27=27 therefore they spent the same and it is correct

(d) Tanya's items cost $9 each and Tony's items cost $2.25 less than this, or $6.75
3 0
3 years ago
6x+6+9x+9=? Please help
Hoochie [10]

Answer:

15x + 15

Step-by-step explanation:

Combine like terms. Like terms are terms with the same amount of variables. Set the equation so that the terms are grouped:

6x + 9x + 6 + 9

Combine like terms:

(6x + 9x) = 15x

(6 + 9) = 15

15x + 15 is your answer.

~

5 0
3 years ago
Read 2 more answers
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