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siniylev [52]
3 years ago
5

What is the area of a triangle whose sides are 15 cm, 8 cm and 19 cm?​

Mathematics
1 answer:
ludmilkaskok [199]3 years ago
3 0
Is it 2,280
Hope that work
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IaI − IbI + IcI , if a=−8; b=−5; c=1<br><br>pLEEEEEEZE hELP
yawa3891 [41]

Answer:

4

Step-by-step explanation:

to solve | a | - | b | + | c | we need to plug in the given values

a = -8

b = -5

c = 1

the | | bars mean absolute value which is the exact value a number is away from 0 on a number line. an absolute value has to be positive, not a negative, as you cant be negative spaces away from something. plugging in the values into the equation we have:

| -8 | - | -5 | + | 1 |

the absolute value of -8 is 8, as -8 is 8 units away from 0 on a number line

like wise with -5, the absolute value of -5 is 5, as -5 is 5 units away from 0 on a number line

1 is the absolute value of 1 as its 1 unit away from 0 on a number line

the new expression looks like the following:

8 - 5 + 1

now we just add/subtract

8 -5 = 3

3 + 1 = 4

the solution to this expression is 4

6 0
3 years ago
Show that there are exactly five 3 digit cube numbers
KiRa [710]

Answer:

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6 0
3 years ago
Solve for x: 3 &lt; x +3 &lt; 6
DaniilM [7]

Answer: 0< x < 3

Step-by-step explanation:

Hope this helps!

3 0
3 years ago
What is the slope of y=-1+3xy=−1+3xy, equals, minus, 1, plus, 3, x?
kari74 [83]

Answer:

3

Step-by-step explanation:

Given the function: y=-1+3x

Slope=\dfrac{\text{Change in y axis}}{\text{Change in x axis}}

The above is the derivative of y with respect to x.

Therefore, for

y=-1+3x\\\dfrac{dy}{dx}=3

Therefore the slope of the function is 3.

6 0
3 years ago
Read 2 more answers
Evaluate the expression 3 4/5x-2 1/2 for x =-10
lyudmila [28]

Answer:

The value of given expression for x = - 10  is - 81

Step-by-step explanation:

Given expression as :

3 \frac{4}{5}x - 2 \frac{1}{2}

Or, 3 +  \frac{4}{5}x  - 2 -  \frac{1}{2}

Or,  \frac{19}{5}x -  \frac{5}{2}

or,  \frac{38 x - 25}{5}

Now for  x = - 10

\frac{38\times (- 10)  - 25}{5}

Or, {38\times (- 2)  - 5}

∴ - 76 - 5

Or, - 81

Hence The value of given expression for x = - 10  is - 81  Answer

5 0
3 years ago
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