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2 years ago

What is this? (2 photos please look and just answer A, B, or C)

Mathematics

2 answers:

igomit [66]2 years ago

7 0

I think the answer is C

loris [4]2 years ago

5 0

I thick it is C because

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if £500 is invested for 3 years at a rate of compound interest of 4% per annum how much will be in the account after three years

Hoochie [10]

Answer:

£562.43

Step-by-step explanation:

£500 is invested for 3 years at a rate of compound interest of 4% per annum how much will be in the account after three years

Given data

P= £500

t= 3 years

r= 4%

The expression for the compound interest is given as

A= P(1+r)^t

substitute

A= 500(1+0.04)^3

A= 500(1.04)^3

A= 500*1.124864

A= 562.432

Hence the final amount is £562.43

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2 years ago

F(x) = 100 - 4x what is the value of f f(-5)

scoundrel [369]

Answer:

Step-by-step explanation:

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2 years ago

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Which characteristics best describe the undefined concept?

never [62]

Line. A line would have a length but has no width

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2 years ago

Sabendo que "K" satisfaz a equação {2(k-8) + 3(-k+1) = -4k +11} Os valores reais de x que satisfazem a equação 15x² - kx + 1 = 0

erastova [34]

Answer:

D) 1/5 e 1/3

Step-by-step explanation:

You have the following quadratic equation:

$15x^2-kx+1=0$ (1)

In order to find the values of x that are solution to the equation (1), you first find the solution for k in the following equation:

$2(k-8)+3(-k+1)=-4k+11\\\\2k-16-3k+3=-4k+11\\\\2k-3k+4k=11+16-3\\\\3k=24\\\\k=8$

Next, you replace the previous value of k in the equation (1) and you use the quadratic formula to find the roots:

$15x^2-8x+1=0\\\\x_{1,2}=\frac{-(-8)\pm \sqrt{(-8)^2-4(15)(1)}}{2(15)}\\\\x_{1,2}=\frac{8\pm 2}{30}\\\\x_1=\frac{1}{5}\\\\x_2=\frac{1}{3}$

Then, the roots of the equation (1) are

D) 1/5 e 1/3

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3 years ago

CDEF is a kite and m

blagie [28]

m < 3 = 90 - 46 = 44 degrees answer.

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3 years ago

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