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3 years ago

True or False? Natural Numbers are closed under division.

Mathematics

1 answer:

nignag [31]3 years ago

7 0

False because you can subtract your way out of the set of whole numbers

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On a basketball court the free throw line is marked off geometrically this area of the court is called a key and is topped

Alenkinab [10]

Step-by-step explanation:

Arc length formula is

$s = rx$

where x is radinas.

A semi circle has a radian measure of

$\pi$

The radius is half of the diameter, 12 so the radius is

$12 \times \frac{1}{2} = 6$

So the arc length is

$6 \times \pi = 6\pi$

Area of semi circle is

$\frac{1}{2} \pi {r}^{2}$

where r is the radius.

$\frac{1}{2} \pi6 {}^{2}$

$\frac{1}{2} 36\pi$

$18\pi$

3 0

2 years ago

In this truss bridge, AAOB ABDC. AO=5 meters, BD=10 meters, AB=5 meters. What is the length of BC? A. 5 m B. 8 m C. 10 m D. 15 m

Olenka [21]

Consider $\Delta AOB\cong \Delta BDC$ .

Given:

$\Delta AOB\cong \Delta BDC, AO=5\ m,BD=10\ m, AB=5\ m.$

To find:

The length of BC.

Solution:

We have,

$\Delta AOB\cong \Delta BDC$

We know that the corresponding parts of congruent triangles are congruent (CPCTC).

$AB=BC$ (CPCTC)

$5\ m=BC$

The length of BC is 5 m. Therefore, the correct option is A.

5 0

3 years ago

There were 6.04 gallons of water in Karen's bathtub. Then 0.24 gallons drained out. How much water is left in the bathtub?

san4es73 [151]

Answer:

5.8 gallons in tub

Step-by-step explanation:

6.04-.24=5.8

8 0

3 years ago

Find the value of x in the rectangle ABCD.

attashe74 [19]

Answer:

52°

Step-by-step explanation:

here's your solution

=> we know that the measure of angle of rectangle is 90°

=> 38° + X = 90°

=> X = 90° - 38°

=> X = 52°

hope it helps

3 0

3 years ago

Read 2 more answers

Select the correct answer.

Alex73 [517]

C. 7.2°F is warmer than 7.0°F but colder than 7.6°F.

4 0

3 years ago