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kap26 [50]
3 years ago
8

Can someone please help me with this question.

Mathematics
1 answer:
rusak2 [61]3 years ago
5 0
25x25+20x25+20x15+15x25=1800 the answer is D.
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What is bigger -6.1 or -6
vladimir1956 [14]

Answer:

-6

Step-by-step explanation:

-6.1 is more distant to the 0 and -0.1 off by getting closer.

5 0
3 years ago
7x + 1 = x + 7<br> whats the answer
Gnoma [55]

7x + 1 = x + 7

7(1) + 1 = 8

1 + 7 = 8

If you substitute 1 for x, the statement is true. Therefore, x = 1.

4 0
3 years ago
Read 2 more answers
If the time period of a vibrating body is 0.4 s, then it’s frequency is
irina1246 [14]

Answer:

2.5

Step-by-step explanation:

6 0
3 years ago
Intr un album numarul de fotografii s a micsorat cu 50%. Cu cat trebuie sa se mareasca pentru a reveni la numarul initial? Raspu
hodyreva [135]

Răspuns:

100%

Explicație pas cu pas:

Permiteți numărul inițial de fotografii = x

x - 50% din x = x - 0,5x = 0,5x

0,5x + câte% din 0,5x = x

x - 0,5x = y% de 0,5x

0,5x / 0,5x = 1

Prin urmare,

100% = 1

Prin urmare, x trebuie mărit cu 100% pentru a reveni la numărul original.

3 0
3 years ago
From the hay loft door, Ted sees his dog on the ground. The angle of depression of the dog is 40º. Ted's eye level is 16 feet ab
Vlad1618 [11]

Answer: 19 feet

Step-by-step explanation:

Hi, since the situation forms a right triangle (see attachment) we have to apply the next trigonometric function.  

Tan α = opposite side / adjacent side  

Where α is the angle of depression of the dog, the opposite side (16) is Ted's eye level above the ground, and the adjacent side (x) is the distance between the dog and the barn door.

Replacing with the values given:  

tan40 = 16/x

Solving for x  

x =16/tan40

x= 19 ft  

Feel free to ask for more if needed or if you did not understand something.  

5 0
3 years ago
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