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2 years ago

Please solve and please make sure your correct

Mathematics

1 answer:

Mazyrski [523]2 years ago

3 0

Answer:

(a) The ones that are equivalent to the given fraction are: $\frac{2}{-9}$ and $-\frac{2}{9}$

(b) The one that is equivalent to the given fraction is: $\frac{-8}{-5}$

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Eborah finds that the theoretical probability of flipping "heads" on a fair coin was 50%. After she flipped the fair coin 100 ti

eimsori [14]

Answer:

Step-by-step explanation:

Given that:

Theoretical probability = 50%

The experimental probability = number of desired outcome / number of trials

Hence, experimental probability = 45 / 100 = 0.45

0.45 = 0.45 * 100% = 45%

Percentage difference in theoretical and experimental probability :

Theoretical - experimental

50% - 45% = 5%

3 0

3 years ago

For which real numbers x and y is it true that x + y = x+y?

Alchen [17]

By the general application of cumulative property of addition :

x + y = y + x

For sure

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3 years ago

*Fill in the blanks with the correct letters* (You don't have to explain it I just need the answers please)

Vedmedyk [2.9K]

7x^2 + 7y^2 - 28x + 42y - 35 = 0.
⇒ x^2 + y^2 - 4x + 6y - 5 = 0.
⇒ (x-2)^2 + (y+3)^2 = 18

1. B
2. C
3. B

4 0

3 years ago

Referring to the Fig. in Question #40, find the unknown length Y.

icang [17]

Answer:

tan30°=7/x

$\frac{1}{ \sqrt{3} } = \frac{7}{x } \\ x = 7 \sqrt{3}$

cos30°=x/y

$\frac{ \sqrt{3} }{2} = \frac{7 \sqrt{3} }{y} \\ \\ 7 \sqrt{3} \times 2 = \sqrt{3} \times y \\ \frac{7 \sqrt{3 } \times 2}{ \sqrt{3} } = y \\7 \times 2 = y \\ 14 = y$

tell me if it's wrong.

7 0

2 years ago

Read 2 more answers

find the asymptotes, domain, range and end behavior and sketch the parent graph with the translated graph

Fed [463]

Answer:

27) x = 2^(y) – 5.

Asymptote: x = -5.

D: x > -5; (-5, infinity).

R: -infinity < f(x) < infinity; ARN;

(-infinity, infinity).

x → -infinity, f(x) → -infinity.

x → +infinity, f(x) → +infinity.

________________________

28) x = 2^-(y–3).

Asymptote: x = 0.

D: x > 0; (0, infinity).

R: -infinity < f(x) < infinity; ARN;

(-infinity, infinity).

x → -infinity, f(x) → +infinity.

x → +infinity, f(x) → -infinity.

________________________

29) x = 4^(y–2) + 1.

Asymptote: x = 1.

D: x > 1; (1, infinity).

R: -infinity < f(x) < infinity; ARN;

(-infinity, infinity).

x → -infinity, f(x) → -infinity.

x → +infinity, f(x) → +infinity.

________________________

6 0

3 years ago