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4 years ago

Jay Feltcher deposited $3,400 into a retirement account. Find the rate if he has $3,494.50 in the account 9 months later.

Mathematics

2 answers:

Tom [10]4 years ago

8 0

7.4 is the correct answer

wlad13 [49]4 years ago

6 0

Answer:

3.7%

Step-by-step explanation:

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Can somebody help me????

ddd [48]

$f(x)=5x^2-3\\\\\\
f(x+a)=5(x+a)^2-3=5(x^2+2ax+a^2)-3=\\\\=\boxed{5x^2+10ax+5a^2-3}$

On the other hand:

$f(x+a)=5x^2+30x+42$

so:

$10ax=30x\\\\10a=30\qquad|:10\\\\\boxed{a=3}$

Answer C.

8 0

4 years ago

When added, what is the simplified form of (7 + 2i) + (3 + 6i)? Write the answer in standard form, a + bi, where a and b are rea

Liula [17]

9514 1404 393

Answer:

10 +8i

Step-by-step explanation:

You add these the same way you would if they were considered to be polynomials.

(7 +2i) +(3 +6i) = (7 +3) +(2 +6)i = 10 +8i

5 0

3 years ago

A man buys lemons at 3 for Rs. 5 and an equal number at 2 for Rs. 4. He mixes them and sells at 5 for Rs. 9. Find his gain or lo

melamori03 [73]

3 lemons cost = Rs. 5

Each lemon cost = Rs. 5/3

2 lemons Cost = Rs. 4

Each lemon cost =

$= \frac{4}{2} = \frac{2}{1} = 2$

Total Cost price of Each lemon =

$\frac{5}{3} + \frac{2}{1}$

LCM = 3

$\frac{5}{3} + \frac{2 \times 3}{1 \times 3} = \frac{6}{3} = \frac{5 + 6}{3} = \frac{11}{3}$

Each lemon Cost =

$= \frac{11}{3} \div \frac{2}{1}$

$= \frac{11}{3} \times \frac{1}{2}$

$= \frac{11}{6}$

Selling price of 5 lemons = 9

Selling price of 1 lemon = 9/5

$loss\% = \frac{loss \times 100}{CP}$

$= \frac{ \frac{4}{6} - \frac{9}{5} \times 100 }{ \frac{11}{6} }$

$= \frac{\frac{55 - 54}{30} \times 100}{ \frac{11}{6} }$

$= \frac{\frac{1}{30} \times 100}{ \frac{11}{6} }$

$= \frac{100}{30} \times \frac{6}{11}$

$= \frac{20}{1} = 1 \frac{9}{11} \% \: loss$

5 0

3 years ago

Read 2 more answers

Can anyone help me with this ?

STALIN [3.7K]

To solve this problem use the formula below. All you have to do is insert the respective points into the formula and it gives you the radical form.

6 0

3 years ago

Please help me with this please!!

Eva8 [605]

9514 1404 393

Answer:

135°

Step-by-step explanation:

In order to answer the question, we must assume that the black lines are parallel to each other.

The given angles (2, 8) are "same-side (consecutive) exterior" angles, so are supplementary.

∠2 +∠8 = 180°

15x +5x = 180°

x = 180°/20 = 9°

∠2 = 15x = 15(9°) = 135°

Angles 2 and 3 are vertical angles, so angle 3 has the same measure as angle 2.

∠3 = 135°

6 0

3 years ago