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4 years ago

Number 7: What do the lines on the shape mean

Mathematics

1 answer:

Serjik [45]4 years ago

5 0

The lines mean that they are parallel

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Please please help me with these questions. It’s urgent. I will mark BRAINLIEST.

zmey [24]

Answer:

$\large\boxed{Q1.\ \sin\theta=\dfrac{40}{41}}\\\boxed{Q2.\ 30^o}$

Step-by-step explanation:

Q1.

$\sin\theta=\dfrac{y}{r}$

$\text{We have}\\\\r=1\to(\text{radius of the unit circle}),\\\\y=\dfrac{40}{41}\to\text{from the given point}\ \left(\dfrac{9}{41},\ \dfrac{40}{41}\right)\\\\\text{Substitute:}\\\\\sin\theta=\dfrac{\frac{40}{41}}{1}=\dfrac{40}{41}$

Q2.

look at the picture

210° is in III Quadrant. Therefore the reference angle for θ is:

210° - 180° = 30°

8 0

3 years ago

Carlos buys a game for $7.89 and some batteries for $5.49. He pays with a $20 bill. What is the best estimate of how much change

Molodets [167]

Given:

Carlos buys a game for $7.89 and some batteries for $5.49. He pays with a $20 bill.

To find:

The best estimate of the amount of change he should get.

Solution:

First we need to approximate the data values.

$\$7.89\approx \$8.00$

$\$5.49\approx \$5.50$

Now, the total cost of game and batteries is

$\$8.00+\$5.50=\$13.50$

He pays with a $20 bill.

$Change=\$20-\$13.50$

$Change=\$6.50$

Therefore, the estimated amount of change is $6.50.

3 0

3 years ago

(-5)x (-5) x (-5) x (-5) = What would the answer be 20 points

Natasha_Volkova [10]

Answer:

$625x^{3}$

Step-by-step explanation:

4 0

3 years ago

Can anyone help me how to solve this?

devlian [24]

1) 3^6 * 3^5 = 3^11
2) 2^3 * 2^7 = 2^10
3)7^2*7^6 = 7^8

hope it helps

8 0

3 years ago

Read 2 more answers

A building society offers a rate of 11% per annum simple interest. Beth-Ann deposit 24000 in the society for 15 months. Calculat

Nostrana [21]

Answer:

The amount of money due to Beth-Ann at the end of this period is $27, 300.

Step-by-step explanation:

The amount at the end of a period, when simple interest is being charged is:

Amount (A) = Principal (P) + Interest (I)

Here interest is computed using the formula:

$I=P\times R\times T$

It is provided that:

P = 24,000

R = 11%

T = 15 months = 1.25 years

Compute the Interest as follows:

$I=P\times R\times T$

$=24000\times 0.11\times 1.25\\=3300$

The interest earned is, I = $3,300.

Compute the amount of money due to Beth-Ann at the end of this period as follows:

$A=P+I$

$=24000+3300\\=27300$

Thus, the amount of money due to Beth-Ann at the end of this period is $27, 300.

7 0

3 years ago