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never [62]
2 years ago
14

Which of the following is the function f(x) if

lt="f^{-1}" align="absmiddle" class="latex-formula">(x)^{}=\frac{x+4}{11}
{A.P.E.X ~ Algebra 1 | SEM 1}

Mathematics
1 answer:
just olya [345]2 years ago
4 0

Answer:

B

Step-by-step explanation:

See attached images for work.

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Toni invests money into an account which pays a fixed rate of compound interest each year. The total value, £V, of her investmen
ehidna [41]

Answer:

a. 1350

b. 4%

Step-by-step explanation:

here is the complete question :

Toni invests money into an account which pays a fixed rate of compound interest each year. The total value, £V, of her investment after t years is given by the formula:

V = 1350 x 1.04^t

Answer questions a & b

a - How much money did Toni invest in pounds

b - What rate of compound interest is paid each year

the formula for calculating compound interest is given by :

V = P (1 + r)^t

P = Present value  -= amount invested = 1350

R = interest rate  = 4%

N = number of years  = t

i hope my answer helps you

7 0
3 years ago
Explain the Error: Alan says that two lines in the coordinate plane are perpendicular if and
Ivanshal [37]

Answer:

Check the step-by-step

Step-by-step explanation:

To get the perpendicular you need to find the negative reciprocal, therefore, he is wrong as he did not switch the negative/positive sign in m & 1/m. Also, if m is a fraction like 5/3, the reciprocal would not be 1/m, it would be 3/5 as you flip the denominator and numerator.

7 0
3 years ago
The curve y= (k+2)x^2 meets the line y=(k+3)x +3. Find the range of possible values of k.
Greeley [361]
(k+2)x^2=(k+3)x+3\\
(k+2)x^2-(k+3)x-3=0\\
\Delta\geq0 \wedge k\not=-2\\
\Delta=(-(k-3))^2-4\cdot(k+2)\cdot(-3)\\
\Delta=(-k+3)^2+12k+24\\
\Delta=k^2-6k+9+12k+24\\
\Delta=k^2+6k+33\\
k^2+6k+33\geq0\\
\Delta=6^2-4\cdot1\cdot33=36-132=-9
3 0
3 years ago
If you have 2x - 4 list three input and their output values.
poizon [28]

With 2x-4 given to you, you can substitute x (input) and solve with that input to get y (output).

Ex. 2(0)-4=-4, (0, -4)

     2(1)-4=-2, (1, -2)

     2(2)-4=0, (2, 0)

4 0
3 years ago
The floor of a shed given on the right has an area of 85 square feet. The floor is in the shape of a rectangle whose length is 7
lesya692 [45]

Answer: Length = 10 feet and width = 8.5 feet.

Step-by-step explanation:

Let x be the width of the floor.

Then length of the floor = 2x-7

Given : The area of the floor = 85 square feet

We know that the area of a rectangle is given by :-

A=l\times w

\Rightarrow\ 85=(2x-7)\times x\\\\\Rightarrow\ 2x^2-7x-85=0\\\\\ x=\dfrac{-b\pm\sqrt{b^2-4ac}}{2a}\\\\\Rightarrow\ x=\dfrac{7\pm\sqrt{49-4(2)(-85)}}{4}\\\\\Rightarrow\ x=\dfrac{7\pm27}{4}\\\\\Rightarrow\ x=\dfrac{17}{2}, -5

But dimension cannot be negative

So, the width of the floor = x=\dfrac{17}{2}=8.5\text{ feet}

And the length of the floor = 2(8.5)-7=10\text{ feet}

6 0
4 years ago
Read 2 more answers
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