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Ksenya-84 [330]
3 years ago
8

Estimate 8.25% sales tax on a $39.89 purchase

Mathematics
1 answer:
pickupchik [31]3 years ago
6 0

Turn the percentage into a decimal.

8.25% / 100 = 0.0825

Multiply.

39.89 * 0.0825 ≈ $3.29

Subtract.

39.89 + 3.29 = $43.18

Best of Luck!

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Solving for a Confidence Interval: Algebra 2 points possible (graded) In the problems on this page, we will continue building th
baherus [9]

Answer:

Step-by-step explanation:

1) The given inequality is

|\sqrt{n} \frac{(\bar R_n-p)}{\sqrt{p(1-p)} } |

\to n( \bar R _n - p)^2

\to n\bar R +np^2-2nR_np

Arranging the terms  with p² and p, we get

p^2(n+q^2_{\alpha /2)-p(2n \bar R _n+q^2_{\alpha / 2})+n \bar R ^2 _n

Hence, the inequality is of the form

Ap² + Bp + c < 0

2. A quadratic equation of the form

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4 0
3 years ago
Solve for x: 3 − (2x − 5) &lt; −4(x + 2)
Firdavs [7]

Answer:

A. x < -8 (first option)

Step-by-step explanation:

3 - (2x - 5) <  - 4(x + 2)

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8 - 2x <  - 4x - 8

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6 0
3 years ago
TOY has coordinates T (-3, 4), O (-4, 1) and Y (-2, 3). a translation maps point T to T' (-1, 1). find the coordinates of O' and
NeX [460]

Answer:

Answer:  The correct option is (A) O' (−2, −2); Y' (0, 0).

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We are to find the co-ordinates of the points O' and Y'.

The given transformation from T to T' is

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So,

and

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(a, b) ⇒ (a+2, b-3).

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co-ordinates of O' are (-4+2, 1-3) = (-2, -2),

and

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8 0
3 years ago
I need help with this
omeli [17]

sorry i don't know this one wish i could help

7 0
3 years ago
Pls answer and explain how you got it - i will mark brainliest<br> (just answer #28)
Akimi4 [234]

Answer:

5 x^2 y^ (-3) z = ?

Step-by-step explanation:

We know the volume of a rectangular prism is given by

V = l*w*h

V = 2x^2 * y^-2 * ?

We are given the volume

V =10x^4 y^-5 z

Set  the two equal

10x^4 y^-5 z = 2x^2 * y^-2 * ?

Divide each side by 2x^2 y^-2

10x^4 y^-5 z /2x^2 y^-2 = 2x^2 * y^-2 * ?/2x^2 * y^-2

10x^4 y^-5 z/ 2x^2 y^-2 = ?

Simplifying

10/2  * x^4/x^2  y^-5/ y^-2  z = ?

We know that a^b/ a^c = a^(b-c)

5 x^ (4-2) y^(-5 - -2) z = ?

5 x^2 y^ (-5 +2) z = ?

5 x^2 y^ (-3) z = ?

4 0
3 years ago
Read 2 more answers
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