Ce sunt mamiferele ??????

2 answers:

3 0

<span>un animal vertebrat cu sânge cald a unei clase, care se distinge prin posesia de păr sau blană, secreția de lapte de femei pentru hrana tinerilor, și (de obicei) nașterea pui vii.</span>

avanturin [10]3 years ago

3 0

Mamiferele sunt animale care au păr.
Păsările nu sunt mamifere, deoarece acestea au pene.
Mamiferul numai de zbor este un liliac.

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A student has a savings account with $475 in it. She deposits $125 of her paycheck into the account every week. Her goal is to s

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Answer:

a. $850

b. 7 weeks

c. f(x) = 125x +475

d. see attached (3, 850), (7, 1350)

e. 53 weeks

Step-by-step explanation:

After 3 weeks, $125×3 = $375 will have been added to the $475 already in the account. The balance will be ...

$375 +475 = $850

The student will have to add $1350 -475 = $875 to her account to reach $1350. At a rate of $125 per week, that will take ...

$875/($125/week) = 7 weeks

The initial value is $475, and the rate of change is $125 per week, so the equation can be written ...

f(x) = 475 +125x . . . . . . . balance after x weeks

See the attached graph with the required points marked. (3, 850), (7, 1350)

It will take more than 53 weeks for the student to reach her goal. (After 52 weeks, the account will have $6975, so will be $25 short of the goal.)