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ale4655 [162]
3 years ago
14

Please help me solve these quadratic equations. Also please show your work simply!!

Mathematics
1 answer:
mojhsa [17]3 years ago
4 0

Answer:

Negative numbers can't have a square root so they are all undefine and so is 7.

Step-by-step explanation:

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One way to determine the surface area of this cylinder is to-
Anestetic [448]

Answer:

equal to the area of the two bases plus the area of the outer surface

Step-by-step explanation:

4 0
2 years ago
If n = 20, use a significance level of 0.01 to find the critical value for the linear correlation coefficient r.
Oliga [24]

Answer:

0.561

Step-by-step explanation:

To solve this problem we must resort to external information that I will leave attached with the answer, it is a table that for each value of n, gives us the critical values.

Returns the critical values ​​for both the significant levels of 0.01 and 0.05.

If we go to the table we know that when n = 20 and the significant level is 0.01, the corresponding critical value is: 0.561

7 0
3 years ago
Solve this linear equation for p: 2.6(5.5p – 12.4) = 127.92 1. Distributive property: 2. Addition property of equality: 3. Divis
Ronch [10]

P= 11.2

Not sure why you took p out of the equation.

2.6(5.5p-12.4)=127.92

14.3p - 32.24 =127.92

14.3p = 160.16

P = 11.2

4 0
3 years ago
Read 2 more answers
7≥ 3x + 4 is it 4, 1, 2 or -1
san4es73 [151]

Answer:

x≤1

Step-by-step explanation:

7≥3x+4

Intercambie los lados para que todos los términos de las variables estén en el lado izquierdo. Esto cambia la dirección de la señal.

3x+4≤7

Resta 4 en los dos lados.

3x≤7−4

Resta 4 de 7 para obtener 3.

3x≤3

Divide los dos lados por 3. Dado que 3 es >0, la dirección de desigualdad sigue siendo la misma.

x≤  

3

3

​

 

Divide 3 entre 3 para obtener 1.

x≤1

6 0
2 years ago
Goodmorning, Anyone know the answer to this?
SVEN [57.7K]

Answer:

1. 5

2. 66/25

3. -7.2

4. 25/24

5 0
4 years ago
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