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3 years ago

ASAPPPPP -2.0 * (-3.6)

Mathematics

2 answers:

Liula [17]3 years ago

7 0

Answer:

the answer is 7.2

Step-by-step explanation:

Doss [256]3 years ago

5 0

Answer:

7.2 or $\frac{36}{5}$

Step-by-step explanation:

-2.0 * (-3.6) = $\frac{36}{5}$

$\frac{36}{5}$ = 7.2

it becomes positive becomes two negative numbers are involved

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Verify identity list steps. Cot(t)(1-cos^2(t))=cos(t)sin(t)

storchak [24]

Remember: We have to work from either the LHS or the RHS.
(Left hand side or the Right hand side)

You should already know this:

$\huge{Cot(t) = \frac{1}{tan(t)} = \frac{1}{\frac{sin(t)}{cos(t)}} = 1\div \frac{sin(t)}{cos(t)} = 1\times \frac{cos(t)}{sin(t)}=\boxed{\frac{cos(t)}{sin(t)}}$

You should also know this:

$sin^2(t) + cos^2(t) = 1\\\\\boxed{sin^2(t)} = 1 - cos^2(t)$

So plugging in both of those into our identity, we get:

$\frac{cos(t)}{sin(t)}\cdot sin^2(t) = cos(t)\cdot sin(t)$

Simplify the denominator on the LHS (Left Hand Side)

We get:

$cos(t) \cdot sin(t) = cos(t) \cdot sin(t)$

LHS = RHS

Therefore, identity is verified.

4 0

3 years ago

The bases of a trapezoid lie on the lines y=2X +7 and y= 2X -5. Write the equation that contains the midsegment of the trapezoid

ryzh [129]

Given:

The bases of a trapezoid lie on the lines

$y=2x+7$

$y=2x-5$

To find:

The equation that contains the midsegment of the trapezoid.

Solution:

The slope intercept form of a line is

$y=mx+b$

Where, m is slope and b is y-intercept.

On comparing $y=2x+7$ with slope intercept form, we get

$m_1=2,b_1=7$

On comparing $y=2x-5$ with slope intercept form, we get

$m_2=2,b_2=-5$

The slope of parallel lines are equal and midsegment of a trapezoid is parallel to the bases. So, the slope of the bases line and the midsegment line are equal.

$m=m_1=m_2=2$

The y-intercept of one base is 7 and y-intercept of second base is -5. The y-intercept of the midsegment is equal to the average of y-intersects of the bases.

$b=\dfrac{b_1+b_2}{2}$

$b=\dfrac{7-5}{2}$

$b=\dfrac{2}{2}$

$b=1$

So, the y-intercept of the required line is 1.

Putting m=2 and b=1 in slope intercept form, we get

$y=2x+1$

Therefore, the equation of line that contains the midsegment of the trapezoid is $y=2x+1$ .

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2 years ago

Which constant number would be an to both sides of the equation rn order to complete the square for the quadratic function 1=x^2

AnnZ [28]

Answer:

k = 9

Step-by-step explanation:

Given

$1= x^2 - 6x$

Required

The perfect number

The coefficient c of x in the above equation is:

$c = -6$

Divide by 2

$c/2 = -3$

Square both sides

$(c/2)^2 = 9$

Hence, the constant to add is:

$k = 9$

8 0

3 years ago

What is the decimal multiplier to increase by 2.5%

Ivahew [28]

%100 x 2,5 is the answer

7 0

3 years ago

Please translate 2 minus the product of a number and 9 is 20.

ryzh [129]

Hey there! :D

2 minus the product of a number and 9 is 20.

2-9n=20 <== equation

number=n minus= - (9 and n are next to each other, so that means they are being multiplied) It is equal to 20.

I hope this helps!
~kaikers

8 0

3 years ago