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3 years ago

Can someone please help!

Mathematics

1 answer:

Sergio [31]3 years ago

5 0

Number 10 is 257.08 inches of ribbon. I’m not sure about number 9

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Which expressions are equivalent to 4^{-2} \cdot 7^{-2}4 −2 ⋅7 −2 4, start superscript, minus, 2, end superscript, dot, 7, start

PolarNik [594]

Answer:

Step-by-step explanation:

Given the expression 4^{-2}•7^{-2}. The following expression are equivalent to given expression on simplification.

Generally from indices, a^-b = 1/a^b. Applying this to the given expression we have:

4^{-2}•7^{-2} = 1/4^2 • 1/7^2

= 1/(4×4) • 1/(7×7)

= 1/16 • 1/49

= 1/(16×49)

= 1/784

4 0

3 years ago

Please show step by step for this question.

ruslelena [56]

Answer:

y= -1.46 (to 3 s.f.)

Step-by-step explanation:

Please see the attached picture for full solution.

7 0

3 years ago

Find the APY corresponding to the following nominal rate. 2% compounded quarterly The APY is ____%. (Type an integer or a dec

FrozenT [24]

Answer:

2.02%.

Step-by-step explanation:

We are asked to find the Annual Percentage Yield (APY) for the nominal rate of 2% compounded quarterly.

We will use APY formula to solve our given problem.

$APY=(1+\frac{r}{n})^n-1$ , where,

r = Stated annual interest rate in decimal form,

n = Number of times interest is compounded per year.

$2\%=\frac{2}{100}=0.02$

Compounded quarterly means that the value of n is 4.

$APY=(1+\frac{0.02}{4})^4-1$

$APY=(1+0.005)^4-1$

$APY=(1.005)^4-1$

$APY=1.020150500625-1$

$APY=0.020150500625$

Let us convert 0.020150500625 to percent as:

$0.020150500625\times 100\%=2.0150500625\%\approx 2.02\%$

Therefore, the required APY would be 2.02%.

$APY\approx 0.020150500625$

8 0

3 years ago

Please help find mad question last one please help ASAP

MatroZZZ [7]

Answer:

Step-by-step explanation:

add the numbers.

3+7+4+2= 16

then divide the answer by how much there is.

16 // 4= 4

//= divide

hope this helps

7 0

3 years ago

Would anyone care to explain how to get through this problem in the photo? I'm at a complete dead end! Any help would be appreci

shutvik [7]

Step-by-step explanation:

The slope of the equation tangent to y = f(x) at x = 4 is equal to f'(4). Therefore,

$m = f'(4) = \dfrac{1}{(4)^2 - 9} = \dfrac{1}{7}$

We also know that the line passes through the tangent point at (4, -1) so we can write the slope-intercept form of the equation as

$y = mx + b \Rightarrow -1 = \dfrac{1}{7}(4) + b$ or

$b = -\dfrac{11}{7}$

so our equation is

$y = \dfrac{1}{7}x -\dfrac{11}{7}$

or in standard form,

$x - 7y = 11$

5 0

3 years ago