A math question I need help in

Mathematics

1 answer:

gizmo_the_mogwai [7]3 years ago

4 0

The answer will be A

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What is time 45x 45 divided by 6. Help I a Desperate!

Lilit [14]

Answer:

337.5

Step-by-step explanation:

_____

2225 ÷6 = 337.5

5 0

3 years ago

Read 2 more answers

Ms. Robinson gave her class 12 minutes to read. Carrie read 5 1/2 pages in that time. At what rate, in pages per hour, did Carri

cricket20 [7]

The answer is: " 27.5 pages " ; or, write as: " 27 $\frac{1}{2}$ pages " .
____________________________________________________________

5.5 pages / 12 minute = ? pages / 60 minutes;

12 * 5 = 60 ;

5.5 * 5 = ?

5.5 * 5 = 27.5
____________________________________________________________
The answer is: " 27.5 pages " ; or, write as: " 27 $\frac{1}{2}$ pages " .
____________________________________________________________

4 0

3 years ago

Question 9

Alenkasestr [34]

Answer:

$PX=4\\PY=4\sqrt{3}$

Step-by-step explanation:

Let $\angle PYZ=Q$

$\Rightarrow \angle XYP=90-\angle PYZ\\\angle XYP=90-\theta$

In the $\Delta PYZ$

$\tan\theta =\frac{opposite}{adjacent}=\frac{PZ}{PY}......(1)$

In the $\Delta YPX$

$\tan(90-\theta)=\frac{opposite}{adjacent}=\frac{PX}{PY}$

$\cot=\frac{PX}{PY}....(2)$

eqn(1) $\times$ eqn(2)

$\tan\times\cot\theta=\frac{PZ}{PY}\times\frac{PX}{PY}\\\\1=\frac{PZ\times PX}{PY^2}\ \ (as\ tan\theta\ =\frac{1}{\cot\theta})\\\\PY^2=PZ\times PX\\PY^2=12PX.......(3)$

Now in $\Delta XYP$

use Pythagorean theorem

$XY^2=PY^2+PX^2\\8^2=PY^2+PX^2\ \ (as\ XY\ =8)\\PX^2+PY^2=64\\\\PY^2=12PX\ \ (eqn(3)\\\\\Rightarrow PX^2+12PX=64\\\\PX^2+12PX-64=0\\\\PX^2+16-4PX-64=0\\\\(PX+16)(PX-4)=0\\\\PX=4,\ -16$