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2 years ago

Please someone solve this, this is my third time reposting this question so yea please be quick

Mathematics

1 answer:

egoroff_w [7]2 years ago

8 0

Answer:

Step-by-step explanation:

to calculate mean add all the entries in a week ,then divide by 7(the number of days)

i give you hint

mean for week 1=(52+65+... +60)/7

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Determine if the triangles, ΔYPQ and ΔNPD, are similar. If so, identify the similarity criterion.

pav-90 [236]

Answer:

The answer to your question is A) they are similar because of AA criterion

Step-by-step explanation:

- ∠ QYP is ≅ to ∠ DNP given

- ∠ QPN is ≅ to ∠ DPN vertical angles

- ∠ YQP is ≅ to ∠ NDP if two angles are congruent third angle

is also congruent.

Conclusion

ΔYPQ is similar to ΔNPD because of AA similarity.

6 0

2 years ago

Find the value of the expression 4a4 − 2b2 + 40 when a = 2 and b = 7.

Makovka662 [10]

4 a⁴ - 2 b² + 40 :

4 * ( 2⁴) - 2 * ( 7²) + 40 =

4 * 16 - 2 * 49 + 40 =

64 - 98 + 40 =

-34 + 40 =

+ 6

hope this helps!

4 0

2 years ago

I watched a movie called Nemo, the movie was 1h:20m long. The first commercial started at 20 minutes ideational commercials were

ankoles [38]

7 1 is 20 2,3,4,5,6,7 is at 10 mins

3 0

2 years ago

Read 2 more answers

0.4(5x – 12) + 0.5x = 15.2

kvasek [131]

Look at the attached picture ⤴

Hope it will help u..

3 0

3 years ago

Read 2 more answers

3. In a single growing season at the Smith Family Orchard, the average yield per apple tree is 150 apples when the number of tre

g100num [7]

Answer:

A.10000

B.25 more trees must be planted

Step-by-step explanation:

⇒Given:

The intial average yield per acre $y_{i}$ = 150

The initial number of trees per acre $t_{i}$ = 100

For each additional tree over 100, the average yield per tree decreases by 1 i.e , if the number trees become 101 , the avg yield becomes 149.
Total yield = (number of trees per acre) $*$ (average yield per acre)

A.

⇒If the total trees per acre is doubled , which means :

total number of trees per acre $t_{f}$ = $2*t_{i}$ = 200

the yield will decrease by : $t_{f}$ - $y_{i}$

$y_{f}= 150-100= 50$

⇒total yield = $50*200=10000$

B.

⇒to maximize the yield ,

let's take the number of trees per acre to be 100+y ;

and thus the average yield per acre = 150 - y;

total yield = $(100+y)*(150-y)\\=15000+50y-y^{2} \\$

this is a quadratic equation. this can be rewritten as ,

⇒ $=15000+50y-y^{2}\\=15000+625 - (625 - 50y +y^{2})\\=15625 - (y-25)^{2}$

In this equation , the total yield becomes maximum when y=25;

⇒Thus the total number of trees per acre = 100+25 =125;

3 0

2 years ago