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3 years ago

Two sides of a right triangle measure 2 units and 4 units.

Mathematics

1 answer:

Liono4ka [1.6K]3 years ago

8 0

Step-by-step explanation:

a/q first we have to find the measurement of third side

so,

h² = a² + b²

4² = a² + 2²

16 = a² + 4

a = 16 - 4 = 12

a² = 12

a = √12 = 3.46

so,

area of square = a × a

= 3.46 × 3.46 = 11.97 sq unit

hope this answer helps you dear...take care!

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Please answer this question

lana66690 [7]

Answer:

b (0, 4)

Step-by-step explanation:

The other options already have an input (the x) in the function so it must be b.

Las otras opciones ya tienen una entrada (la x) en la función, por lo que debe ser b.

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3 years ago

A shopper is standing on level ground 800 feet from the base of a 250 foot tall department store the shopper looks up and sees a

Aleks04 [339]

Answer:

The elevation to the top of the building from the point on the ground where the shopper is standing is = 17.35°

Step-by-step explanation:

From the ΔABC

AB = height of the building = 250 feet

BC = 800 ft

Angle of elevation = $\theta$

$\tan \theta = \frac{AB}{BC}$

$\tan \theta = \frac{250}{800}$

$\tan \theta$ = 0.3125

$\theta = 17.35$ °

Therefore the elevation to the top of the building from the point on the ground where the shopper is standing is = 17.35°

8 0

3 years ago

We have 8 yards of wraping paper. if we use 2 feet for each present how many present can we wrap

kirill [66]

We can wrap 12 presents. multiply the number of yards by the feet.

3 0

3 years ago

Read 2 more answers

Find the area of the shaded region.

Papessa [141]

Answer:

21.46 cm²

Step-by-step explanation:

because the question want only for the SHADED REGION but NOT AREA OF THE SQUARE

(if we just multiply 10x10. you will get the area of a square which is hundered)

To find the shaded region:

1. area of a circle is πr² (we have 4 circle there)

2. Find the area of all circle

# how do we know the radius?

- half of 10 is 5

- 5 is the diameter of each circle

- the radius is half of 5 which is 2.5

- π(2.5)² = 25/4π (area of 1 circle)

3. since we have 4 circle then, 25/4π x 4 = 25π

4. the area of the square is 100cm²

5. we want the shaded region so we have to minus the area of the circle

6. 100 - 25π (use your calculator to find the answer)

answer should be 21.46 cm²

(hope this helps)

8 0

3 years ago

the height of a ball dropped from a 160 foot building after t seconds is represented by h(t)=160-16t^2.how high will the ball be

alekssr [168]

Answer:

The height of the ball after 3 secs of dropping is 16 feet.

Step-by-step explanation:

Given:

height from which the ball is dropped = 160 foot

Time = t seconds

Function h(t)=160-16t^2.

To Find:

High will the ball be after 3 seconds = ?

Solution:

Here the time ‘t’ is already given to us as 3 secs.

We also have the relationship between the height and time given to us in the question.

So, to find the height at which the ball will be 3 secs after dropping we have to insert 3 secs in palce of ‘t’ as follows:

$h(3)=160-16(3)^2$

$h(3)=160-16 \times 9$

h(3)=160-144

h(3)=16

Therefore, the height of the ball after 3 secs of dropping is 16 feet.

8 0

3 years ago