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olganol [36]
3 years ago
14

I need help right now with homework plz.both of them are on the same homework page.

Mathematics
2 answers:
quester [9]3 years ago
5 0
1. 64 π
2. 10 π
3. 31.4
4. 30 π
5. 75.36
6. 150.796447372
7. 128π
8. 100 feet
9. Using the pi symbol since it represents the number multiplied by all the decimals of pi and not a rounded version like 3.14
katovenus [111]3 years ago
4 0

Answer:

For the first one I believe it is 90

Step-by-step explanation:

All I did to solve this was do 180 which is the diameter and divide by 2

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I WILL MARK 5.0 AND ANYTHING YOU WANT!! NEED THIS ASAP
Dominik [7]

Answer:

119°

Step-by-step explanation:

m\angle BAD = 62\degree + 57\degree

(Vertical angles)

m\angle BAD = 119\degree

4 0
3 years ago
Below is the justification for the formula for area of a circle. Which word, when placed in the blank best completes this argume
mote1985 [20]

Answer:

The correct answer is option A.  r

Step-by-step explanation:

From the figure we can see a circle and a parallelogram.

The circle is divided into a small sectors and these sector then arranged into a parallelogram.

The base of the parallelogram is half the circumference.

The height of parallelogram is equal to the radius of the given circle. Here radius is 'r'.

Therefore the correct answer is option A.   r

8 0
4 years ago
Read 2 more answers
The angle marked a = 146 Work out the angle marked x.​
notka56 [123]

Answer:

<h2>34 degrees</h2>

Basic facts:

<em>Corresponding angles are sometimes known as 'F' angles.</em>

angles in a straight line add up to 180

Step-by-step explanation:

To find the other side of <em>a</em> we follow the Basic fact annd do

180-146

=34

following the rule, we know that this is a flipped F

An F is a corresponding angle

therefore f is 34

5 0
2 years ago
How many grams are 7.00 x 1022 molecules of NaOH?
olya-2409 [2.1K]

Answer:

46.5

explanation

6.022*10^23 molecules=40g.

7.00*10^23=40*7.00*10^23/6.022*10^23 g =46.5 g

8 0
3 years ago
Romb ma obwód równy 32 cm. Jakie jest pole tego rombu, jeżeli jego wysokość ma 3 cm?
Goshia [24]

Answer:

24 cm²

Step-by-step explanation:

Z zadanego powyżej pytania uzyskano następujące dane:

Obwód (obwód) = 32 cm

Wysokość (h) = 3 cm

Obszar rombu (A) =?

Następnie określimy długość boku rombu. Można to uzyskać w następujący sposób:

Obwód, czyli obwód (P) = 32 cm

Strona (y) =?

P = 4 s

32 = 4 s

Podziel obie strony przez 4

s = 32/4

s = 8 cm

Stąd długość boku rombu wynosi 8 cm

Na koniec określimy obszar rombu w następujący sposób:

Długość boków = 8 cm

Wysokość (h) = 3 cm

Obszar rombu (A) =?

A = sh

A = 8 × 3

A = 24 cm²

Dlatego obszar rombu jest

24 cm².

8 0
3 years ago
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