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3 years ago

Quick answers please!

Mathematics

1 answer:

MakcuM [25]3 years ago

7 0

Answer:

27.44

Step-by-step explanation:

area of the half sircle = 12.56

area of the rectangle = 40

area of the shaded protion = 40 -12.56

=27.44 square yards

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Find the coordinates of P(a,b) whose ordinate is twice as much as abscissa and sum of coordinates is -12.

ser-zykov [4K]

Answer:

P(- 4, - 8 )

Step-by-step explanation:

The abscissa is the x- coordinate and the ordinate is the y- coordinate.

Here b = 2a , thus

a + 2a = - 12

3a = - 12 ( divide both sides by 3 )

a = - 4

and b = 2a = 2 × - 4 = - 8

P(- 4, - 8 )

8 0

4 years ago

How do you solve 14g > 56

Alona [7]

You divide both sides by 14:

$14g>56 \iff \dfrac{14g}{14}>\dfrac{56}{14} \iff g>4$

4 0

4 years ago

1+Sin/Cos + Cos/1+Sin = 2Sec

Bond [772]

Step-by-step explanation:

Consider the left-hand side:

$\dfrac{1+\sin{\theta}}{\cos{\theta}} + \dfrac{\cos{\theta}}{1+\sin{\theta}}$

$\:\:\:\:= \dfrac{(1+\sin{\theta})^2 + \cos^2{\theta}}{\cos{\theta}(1+\sin{\theta})}$

$\:\:\:\:=\dfrac{1+2\sin{\theta}+\sin^2{\theta} + \cos^2{\theta}}{\cos{\theta}(1+\sin{\theta})}$

$\:\:\:\:=\dfrac{2+2\sin{\theta}}{\cos{\theta}(1+\sin{\theta})} =\dfrac{2(1+\sin{\theta})}{\cos{\theta}(1+\sin{\theta})}$

$\:\:\:\:= \dfrac{2}{\cos{\theta}} = 2\sec{\theta}$

7 0

3 years ago

lisa spun a tri-color spinner twice. what is the probability that the spiner landed on the the colors blue and green in any orde

brilliants [131]

Ratio: 2:6 (Reduced 1:3)

Fraction: 2/6 (Reduced 1/3

7 0

3 years ago

Which order pair is a solution to the system of linear equations -4+y=8 and x-5y=17?

andreev551 [17]

Hello!

To find this ordered pair, we solve for x and y and put them together in an ordered pair.

-4+y=8

x-5y=17

Let's solve the first equation for y.

y= 12

Now, let's plug 12 into the second equation for y.

x-5(12)=17

x-60=17

x=77

Therefore, our ordered pair is (77,12)

I hope this helps!

4 0

4 years ago

Read 2 more answers

Quick answers please!​

Quick answers please!