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2 years ago

Can someone help me pls

Mathematics

1 answer:

irina [24]2 years ago

3 0

Answer:

(d) x = (5±√53)/2

Step-by-step explanation:

The given quadratic equation is in standard form, so the coefficients are readily identified. The solution is given by the quadratic formula based on those coefficients.

<h3>Quadratic formula</h3>

The solution to the quadratic equation ax² +bx +c = 0 is given by the formula ...

$x=\dfrac{-b\pm\sqrt{b^2-4ac}}{2a}$

<h3>Application</h3>

The given equation has coefficients a = 1, b = -5, c = -7, so the solutions given by the formula are ...

$x=\dfrac{-(-5)\pm\sqrt{(-5)^2-4(1)(-7)}}{2(1)}=\dfrac{5\pm\sqrt{25+28}}{2}\\\\\boxed{x=\dfrac{5\pm\sqrt{53}}{2}}$

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A shirt company has 3 designs each of which can be made with short or long sleeves . There are 7 color patterns available. How m

Arlecino [84]

Answer:

There are 42 different types of shirt available for this company.

Step-by-step explanation:

Given:

Number of design Company has = 3

Number of color pattern available = 7

Types of shirt (short or long sleeves) = 2

We need to find the number of different types of shirts are available from this company.

Solution:

the number of different types of shirts can be calculated by multiplying Number of design Company has with Number of color pattern available also multiplying with Types of shirt (short or long sleeves).

framing in equation form we get;

the number of different types of shirts $3\times7\times2 =42$

Hence There are 42 different types of shirt available for this company.

5 0

3 years ago

15% of R560 - 15% of R500 is:

Dahasolnce [82]

15% of R560 - 15% of R500

=> 0.15 × 560 – 0.15 × 500

=> 0.15 ( 560–500)

=> 0.15 × 60

=> Rs. 9

HOPE IT HELPS

PLEASE MARK ME BRAINLIEST ☺️

8 0

3 years ago

Which expression is equivalent to x6 – 9?

Cerrena [4.2K]

Answer:

12-9

Step-by-step explanation:

If 'x' value is 2

Then x*6 - 9

Then x*6 = 12

Then x*6-9 = 12-9

5 0

4 years ago

Please help, I need it soon.

nadya68 [22]

Answer is : 8v^3+ 14v^2+11v+3
For cubic feet

Solution

Formula : volume base area x height

So base area = 4v^2 +5v+3
Height = 2v+1

So multiply

Volume =(4v^2+5v+3) x(2v+ 1)

The rest is below

7 0

2 years ago

Will the defenders be able to reach the ball carrier explain why or why not plz

Afina-wow [57]

Answer:

if your going based off of the path that they are taking i say yes because the will meet at the end point or in this case the 1 yard line

Step-by-step explanation:

6 0

3 years ago