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3 years ago

Which of these activities is not related to the muscular system?

Mathematics

2 answers:

Lesechka [4]3 years ago

8 0

Maybe A, please correct me if I’m wrong

leonid [27]3 years ago

5 0

A is the answer.... have a good day

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Someone help!! With this question please

Anastasy [175]

You’re trying to get the first equation to equal y so you can substitute it in the second question

2x + y = -2
subtract 2x from both sides: y = -2 - 2x
rearrange the equation : -2x -2
so the answer is C

8 0

3 years ago

If the sum of two real number is 21, what is the greatest possible value of their product

Softa [21]

Answer:

Step-by-step explanation:

let th numbers be x and y.

x+y=21

y=21-x

Product P=xy=x(21-x)=21 x-x^2

P'=21-2x

P'=0 gives 21-2x=0,x=21/2

P"=-2

which is less than 0 at x=21/2

so P is greatest at x=21/2

y=21-21/2=21/2

P=21/2 ×21/2=441/4=110.25

4 0

3 years ago

Find the discriminant of the following equation:

vladimir1956 [14]

Option 1

The discriminant of given equation is 116

Solution:

We have to find the discriminant of given equation

Given equation is:

$f(x) = 4x^2+6x-5$

To find discriminant,

$4x^2+6x-5 = 0$

$\text {For a quadratic equation } a x^{2}+b x+c=0, \text { where } a \neq 0$

Discriminant is given by:

$D = b^2-4ac$

On comparing the given quadratic equation $4x^2+6x-5 = 0$ with general quadratic equation $ax^2+bx+c = 0$

a = 4

b = 6

c = -5

Substituting in above formula,

$D = 6^2-4(4)(-5)\\\\D = 36-16(-5)\\\\D = 36+80\\\\D = 116$

Thus discriminant of given equation is 116

8 0

3 years ago

Which statement is true about the diagram

Kazeer [188]

Answer:

DEF is a right angle

Step-by-step explanation:

7 0

4 years ago

Read 2 more answers

Solve the following question:

vredina [299]

Answer:

x = 2, x = 8

Step-by-step explanation:

reminder that f'(x) = $m_{tangent}$

Differentiate f(x) term by term using the power rule

$\frac{d}{dx}$ (a $x^{n}$ ) = na $x^{n-1}$

f(x) = $\frac{1}{3}$ x³ - 5x² + 2x + 10

f'(x) = x² - 10x + 2

Equating f'(x) to - 14

x² - 10x + 2 = - 14 ( add 14 to both sides )

x² - 10x + 16 = 0 ← in standard form

(x - 2)(x - 8) = 0 ← in factored form

Equate each factor to zero and solve for x

x - 2 = 0 ⇒ x = 2

x - 8 = 0 ⇒ x = 8

4 0

3 years ago