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Olenka [21]
3 years ago
15

Solve the following quadratic equation by using the Quadratic Formula: X²+ 2x - 3

Mathematics
1 answer:
Leno4ka [110]3 years ago
4 0
Yep he or she is right have a nice day
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How much do you earn per week if your annual salary is $40,716?
Sidana [21]

Answer:

783

Step-by-step explanation:

There are 52 weeks in a year. Divide 40,716/52 and you get $783 weekly.

4 0
3 years ago
(1 - cosx) (1 + 1/cosx) = sinxtanx
Nataly [62]

Answer:

cos x ≠ 0 ⇔ x ≠ \frac{pi}{2}+k.pi ; k ∈ N

(1-cosx)(1+\frac{1}{cosx})=sinx.tanx\\\\(1-cosx)(\frac{cosx+1}{cosx})=sinx.\frac{sinx}{cosx}\\\\ \frac{1-cos^{2} x}{cosx} =\frac{sin^{2}x }{cosx}\\\\=>1-cos^{2}x=sin^{2}x

<=> cos²x + sin²x = 1

⇔ 1 = 1

=> x =  { R \ (pi/2 + k.pi); k ∈ N}

Step-by-step explanation:

5 0
3 years ago
Find the distance between 6.2 and<br> -4.3 on a number line.
Nitella [24]

Answer:

The two given numbers are 10.5 units apart.

Step-by-step explanation:

Subtract the smaller from the larger.  The larger number here is 6.2. Then we have

6.2 - (-4.3) = 6.2 + 4.3 = 10.5

The two given numbers are 10.5 units apart.

8 0
3 years ago
-3(z-8)+10=-5<br> What is z equal to?
Brut [27]

Answer:The value of z can be calculated by doing thefollowing steps;

Step-by-step explanation:

8 0
3 years ago
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The quantity of four minus one all raised to the five-minus- two power
leva [86]

Answer:

(4-1)^5-2

Step-by-step explanation:

The quantity means parenthesis, around four minus one, (closed quantity), all raised to the power (exponent) five minus 2

3 0
3 years ago
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