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12345 [234]
4 years ago
10

Please dont ignore, need help) Write the ratios for sin P and cos Q

Mathematics
1 answer:
Elan Coil [88]4 years ago
6 0

Answer: both are 21/29

Step-by-step explanation:

Use SOHCAHTOA so the opposite/hypotenuse for P is 21/29 and the adjacent/hypotenuse for Q is also 21/29

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A car start from rest and accelerates at the rate of 2m/s² for 5 seconds. it maintenance this velocity for another 5 seconds. it
Vladimir79 [104]

Answer:

2m/s² ; - 2m/s²

25m ; 50m ; 25m

6.67 m/s²

Step-by-step explanation:

The acceleration and deceleration :

Both rates are the Same from the graph ;

According to scenario described, acceleration = 2m/s²

Deceleration occurred in equal time interval = - 2m/s

Distance covered during each stage:

Stage 1 : area of triangle

0.5 * base * height

0.5 * 5 * 10 =25 m

Stage 2: area of rectangle :

Length * breadth = 5 * 10 = 50 m

Stage 3 : area of triangle

0.5 * base * height

0.5 * 5 * 10 =25 m

Average Velocity :

Total distance / time = (25 + 50 + 25) / 15 = 100/ 15 = 6. 67 m/s

5 0
3 years ago
Please help and plz make sure it’s right :)
Softa [21]

Answer:

-10

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
In an isosceles trapezoid the length of a diagonal is 25 cm and the length of an altitude is 15 cm. Find the area of the trapezo
andreev551 [17]

Answer:

The area of the trapezoid is 525\ cm^{2}

Step-by-step explanation:

we know that

The area of a isosceles trapezoid is equal to the area of two isosceles right triangles plus the area of a rectangle

step 1

<em>Find the area of the  isosceles right triangle</em>

Remember that

In a isosceles right triangle the height is equal to the base of the triangle

we have

h=15\ cm

so

b=15\ cm

The area is equal to

A=\frac{1}{2}(b)(h)

substitute the values

A=\frac{1}{2}(15)(15)=112.5\ cm^{2}

step 2

Find the area of the rectangle

The area of the rectangle is equal to

A=LW

we have

W=15\ cm -----> is the height of the trapezoid

d=25\ cm  -----> the diagonal of the rectangle

Applying the Pythagoras Theorem

25^{2}=L^{2}+15^{2}\\L^{2}=25^{2}-15^{2} \\ L^{2} =400\\L=20\ cm

The area of the rectangle is

A=(20)(15)=300\ cm^{2}

step 3

Find the area of the trapezoid

A=2(112.5\ cm^{2})+300\ cm^{2}=525\ cm^{2}

6 0
4 years ago
Read 2 more answers
debby collected eight times as many bags of cans as her friend. if her friend collected 1 2/3 pf bags. how many did debby collec
Harlamova29_29 [7]
13 1/3 bags.

We start off with:
8 x 1 2/3

Convert the mixed number into an improper fraction:
8 x 5/3

Multiply:
40/3

Simplify:
13.333...

Convert decimal to fraction:
13 1/3
6 0
3 years ago
Which one out of these two is a dependent variable?<br> 1. students<br> or<br> 2. pizzas
marta [7]
The student because the student depends on the pizza
7 0
4 years ago
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