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2 years ago

In triangle PQR, the measure of angle P=53degrees, PQ=7.4, and PR=9.6. what is the measure of angle R to the nearest degree?

Mathematics

1 answer:

grigory [225]2 years ago

6 0

The answer is B 49 degrees

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HELP PLEASE THANKS:(

astraxan [27]

2(2)+3y=13
4+3y=13
3y=9
y=3
The answer is B

6 0

3 years ago

6(a-5)=105 solve for A

Paraphin [41]

Answer:

i think its 45/2

decimal form= 22.5

6 0

2 years ago

The height of a cuboid is 12cm,the volume is 1200cm3 find the side of the of a cuboid

Tasya [4]

Answer:

area=volume/height

area=1200cm cubed/12cm

area=100cm squared

5 0

1 year ago

Please Help me with this Click to select the following graphic figure. A square circumscribed about a circle:

Sophie [7]

The answer would be the first image.

Step-by-step explanation:

From context, it appears that to be circumscribed is to be drawn about; thus the square circumscribed about the circle is the first graph.

3 0

3 years ago

Rocket is launched from a tower. The height of the rocket, y in feet, is related to the time after launch, x in seconds, by the

Brut [27]

Answer:

The time that the rocket will hit the ground is 12.87 seconds.

Step-by-step explanation:

Given : The rocket is launched from a tower $y=-16x^2+199x+90$ . The height of the rocket, y in feet, is related to the time after launch, x in seconds, by the given equation.

To find : The time that the rocket will hit the ground ?

Solution :

When the rocket hit the ground i.e. height became zero y=0,

Equation is $y=-16x^2+199x+90$

Substitute y=0,

$-16x^2+199x+90=0$

Using quadratic formula, $x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}$

$x=\frac{-(199)\pm\sqrt{(199)^2-4(-16)(90)}}{2(-16)}$

$x=\frac{-199\pm\sqrt{45361}}{-32}$

$x=\frac{-199+\sqrt{45361}}{-32},\frac{-199-\sqrt{45361}}{-32}$

$x=-0.43,12.87$

Reject negative value.

The time taken is 12.87 seconds.

5 0

2 years ago