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3 years ago

The function T = 25 - sin ( – 4)) +5

Mathematics

1 answer:

tatuchka [14]3 years ago

3 0

Answer:

the third one ithink

Step-by-step explanation:

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Help with math pls cant figure it out

tatyana61 [14]

Answer:

$\frac{5}{4}+or-\frac{3i\sqrt{7} }{4}$

Step-by-step explanation:

You can solve this equation with the quadratic formula which is:

$m_{1,2}=\frac{-b+or-\sqrt{b^{2}-4ac } }{2a}$

All you need to do is rearrange the equation (add $-\frac{11}{2}$ to both sides and then multiply both sides by 2) to get:

$2m^2-5m+11=0$

From this new equation, we can easily see that a = 2, b = -5, and c = 11 AND you don't have to work with as many fractions. Substitute the values for a, b, and c into the quadratic formula to get:

$m_{1,2}=\frac{5+or-\sqrt{(-5)^{2}-4(2)(11) } }{2(2)}$

That simplifies to:

$\frac{5}{4}+or-\frac{\sqrt{25-88} }{4}$

Which simplifies even further to:

$\frac{5}{4}+or-\frac{\sqrt{-63} }{4}$

Which gets you:

$\frac{5}{4}+or-\frac{3i\sqrt{7} }{4}$

P.S. The plus-minus sign wasn't working for me, so I had to just write, "+or-". I hope that didn't make it too confusing for you.

P.P.S. Hope this helps :) Don't forget to mark Brainliest if it did.

7 0

3 years ago

If $17,000 is invested in an account for 25 years. Calculate the total interest earned at the end of 25 years if the interest is

KATRIN_1 [288]

Answer:

a.) $29,750.00 simple interest

b.) $75,266.35 Compounded annually

c.) $79,358.65 compunded quarterly

d.) $80,332.11 compounded monthly

Step-by-step explanation:

a.) Formula: I = p x r x t

Where:

P is the principal amount, $17000.00.

r is the interest rate, 7% per year, or in decimal form, 7/100=0.07.

t is the time involved, 25....year(s) time periods.

So, t is 25....year time periods.

To find the simple interest, we multiply 17000 × 0.07 × 25 to get that:

The interest is: $29750.00

______________________________

b.) $75,266.35

c.) $79,358.65

d.) $80,332.11

5 0

3 years ago

1 + 1 = A 4 B 37 C 69 D. i. c. k

Shkiper50 [21]

Answer:

It is 2

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

(x2yz3)2 how do you solve

AVprozaik [17]

<u>Use the distributive property to solve. Multiply the two by every term in the parentheses and then combine alike terms.</u>

6 0

4 years ago

Please show your work

belka [17]

Answer:

W = 8.2 cm

Step-by-step explanation:

The perimeter formula is P = 2W + 2L and here the perimeter is 65.6 cm.

Thus, 65.6 cm = 2W + 2L. Substituting 3W for L, we get

65.6 cm = 2W + 2(3W) = 8W.

Solving for W by dividing both sides by 8, we get W = 65.6 cm / 8, or

W = 8.2 cm

3 0

3 years ago

Read 2 more answers