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oksian1 [2.3K]
3 years ago
15

Help me with these questions show your work !

Mathematics
1 answer:
lord [1]3 years ago
5 0

Answer:

2) Ans;

\frac{( - 19) - ( - 7)}{5 - ( - 9) - 10}  \\  \\  \frac{ - 19 + 7}{5 + 9 - 10}  \\  \\  \frac{ - 12}{4}  =  - 3

4) Ans;

( - 3)^{3}  +  \frac{12}{4 - 2}  \\  \\  - 27 +  \frac{12}{2}  \\  \\  - 27 + 6 =  - 21

6) Ans;

\frac{8 \times 2 \times 2}{ - 8}  - 2 \\  \\  \frac{24}{ - 8}  - 2 \\  \\  - 4 - 2 =  - 6

I hope I helped you^_^

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Solve 5√3 as the square root of a single number​
Andreyy89

Answer:

/75

Step-by-step explanation:

As I couldn't take the radical symbol I used this - "/".

5 /3

If 5 has to come in the radical sign it has to be squared

So, /25 × /3

/25×3

/75

3 0
4 years ago
Solve y = x + 4 for x.<br> x = y − 4<br> x = y + 4<br> x = −y + 4<br> x = −y − 4
finlep [7]

Answer:

x=y-4

Step-by-step explanation:

y=x+4

-4

y-4=x

8 0
4 years ago
Read 2 more answers
find three consecutive odd integers such that the sum of the smallest number and middle number is 27 less than 3 times the large
katrin2010 [14]

A generic odd number can be written as

2k+1,\quad k \in \mathbb{Z}

Since there is an odd number every two numbers, three consecutive odd numbers will be

2k+1,\quad 2k+3,\quad 2k+5

Now let's make up the equations: the sum of the first two is

(2k+1)+(2k+3)

And 27 less than 3 times the largest is

3(2k+5)-27

These two must be the same, so we have

(2k+1)+(2k+3)=3(2k+5)-27 \iff 4k+4 = 6k+30-27 \iff 4k+4=6k+3

Subtracting 4k and 3 from both sides gives

1=2k \iff k=\dfrac{1}{2}

Which means that the problem has no solution.

To confirm this hypothesis, we can observe that, on the left hand side, we have the sum of two odd numbers, which is even

On the right hand side, we have an odd number, multiplied by 3 (still odd), take away 27 (still odd).

So, the left hand side is even, and the right hand side is odd. They can't be the same number.

7 0
4 years ago
What is the surface area of the square pyramid
user100 [1]

Answer:

128 feet squared

Step-by-step explanation:

you multiply 4 by 4 to get 16 ,

then you multiply 7 by 4 and get 28,

also multiply 28 by 4 and get 112 ,

finally add 112 and 16 to get 128


6 0
3 years ago
The graph plots four equations, A, B, C, and D: Line A joins ordered pair negative 6, 16 and 9, negative 4. Line B joins ordered
grigory [225]

The pair of equations that has (0, 8) as its solution is: A. equation A and equation C.

<h3>What is the Solution to a System of equations?</h3>

The solution to a system of linear equations that are graphed is the pair of x and y coordinates of the points where two lines intersect.

In the graph given, the lines representing equations A and C intersect at point (0, 8). Therefore, the pair of equation that has a solution of (0, 8) is: A. equation A and equation C.

Learn more about solution of a system of equations on:

brainly.com/question/847634

#SPJ1

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