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Eva8 [605]
4 years ago
13

!!!50 POINTS!!! Help Please 2. Which functions are exponential decay functions? Choose exactly two answers that are correct. A.

f(x)=0.9^x B. g(x)=(6/5)^x C. h(x)=1.25^x D. j(x)=(4/5)^x
Mathematics
1 answer:
Goshia [24]4 years ago
5 0
A characteristics of an exponential decay function is it has a constant term that is lesser than 1, this is because when you raise it a number that is lesser than 1 to higher values the result will be lesser and lesser, that is why it is called decay function. so the decay functions are a. f(x)=0.9^x and d. <span>j(x)=(4/5)^x</span>
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WILL MARK BRAINLEIST
lina2011 [118]

Answer:

decrease by 50%

Step-by-step explanation:

\frac{0.4x}{0.8y} =\frac{x}{2y}      

Decreased by 60% = (100%-60%)x = 0.4x.

Decreased by 20% = (100%-20%)x = 0.8x.

\frac{x}{y} initial fraction, and we can see that denominator will increase 2 times, so fraction will decrease 2 times, or decrease by 50%.

6 0
3 years ago
{(5²)} ³×5⁴}÷5⁷ simplify and express the following as exponent​
Stels [109]

Answer:

The answer is 5³.

Step-by-step explanation:

You have to apply Indices Law :

{a}^{m}  \times  {a}^{n} ⇒   {a}^{m + n}

{a}^{m}  \div  {a}^{n}⇒ {a}^{m - n}

{ ({a}^{m} )}^{n}  =  {a}^{mn}

So for this question :

( {( {5}^{2}) }^{3}  \times  {5}^{4} ) \div  {5}^{7}

= ( {5}^{6}  \times  {5}^{4} ) \div  {5}^{7}

=  {5}^{10}  \div  {5}^{7}

=  {5}^{3}

8 0
3 years ago
Solve the following equation for x.
Arlecino [84]
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See the picture for explanation plz
3 0
3 years ago
A population of 1,750 cheetahs decreases by 10% per year. How many cheetahs will there be in the population after 11 years? Roun
Triss [41]

Answer:

The answer is C. 546.

If a population decreases by 11%, that means that 89% (100% - 11% = 89%) of cheetahs remains each number. 89% can be expressed as 0.89, so to calculate the change of the population, we must each year multiply the number of cheetahs by 0.89.

After 1 year:     1750 * 0.89 ≈ 1558

After 2 years:  1558 * 0.89 ≈ 1387

After 3 years:  1387 * 0.89 ≈ 1234

After 4 years:  1234 * 0.89 ≈ 1098

After 5 years:  1098 * 0.89 ≈ 977

After 6 years:  977 * 0.89 ≈ 870

After 7 years:  870 * 0.89 ≈ 774

After 8 years:  774 * 0.89 ≈ 689

After 9 years:  689 * 0.89 ≈ 613

After 10 years:  613 * 0.89 ≈ 546

Step-by-step explanation:

4 0
3 years ago
Damien Smart is trying to decide whether to lease or purchase a new car costing $18,000. If he leases, he’ll have to pay a $600
gizmo_the_mogwai [7]
the\ lease:\\\\ \$450\cdot36(payments)- \$600(security)=\$16,200-\$600=\$15,600 \\\\ the\ purchase:\\\\down\ payments+payments+sales\ tax- residual\ value= \\\\=\$2,400+\$515\cdot36+\$1,080-\$6,500=\$2.400+\$18,540-\$5420=\\\\=\$15,520\\\\\$15,520
6 0
3 years ago
Read 2 more answers
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