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3 years ago

ANSWER THIS U GET BRAINLIEST:)

Mathematics

2 answers:

Bess [88]3 years ago

5 0

Answer:

B is correct because its reflected over both the y and x axis.

LenaWriter [7]3 years ago

3 0

Answer:

Step-by-step explanation:

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Given that sin theta = 1/4, 0→theta→π/2, what<br>. what is the exact value of cos 8?

natali 33 [55]

<h3>Answer: Choice B $\frac{\sqrt{15}}{4}$ </h3>

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Work Shown:

Angle theta is between 0 and pi/2, so this angle is in quadrant Q1.

Square both sides of the given equation

$\sin \theta = \frac{1}{4}\\\\\sin^2 \theta = \left(\frac{1}{4}\right)^2\\\\\sin^2 \theta = \frac{1}{16}$

Then use the pythagorean trig identity to get

$\sin^2 \theta + \cos^2 \theta = 1\\\\\cos^2 \theta = 1-\sin^2 \theta\\\\\cos \theta = \sqrt{1-\sin^2 \theta} \ \ \ \text{cosine is positive in Q1}\\\\\cos \theta = \sqrt{1-\frac{1}{16}}\\\\\cos \theta = \sqrt{\frac{16}{16}-\frac{1}{16}}\\\\\cos \theta = \sqrt{\frac{16-1}{16}}\\\\\cos \theta = \sqrt{\frac{15}{16}}\\\\\cos \theta = \frac{\sqrt{15}}{\sqrt{16}}\\\\\cos \theta = \frac{\sqrt{15}}{4}\\\\$

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3 years ago

The courtyard behind Jennie’s house is shaped like a trapezoid the bases measure 8 meters and 11 meters the height of the trapez

almond37 [142]

Answer:

104.5 meters square

Step-by-step explanation:

The area of a trapezoid is found using the formula A = 1/2 (a + b)h. Substitute a = 8, b = 11 and h = 12.

The area is A = 1/2(8+11)*12.

A = 1/2 (19)*12 = 104.5

8 0

3 years ago

Lucy wants to plant 16 roses, 24 sunflowers, and 32 lilies in her garden. She wants to plant only one type of flower in each row

uranmaximum [27]

Answer:

8 by 8

Step-by-step explanation:

well the GCF of all those are 8 and then adding 16+24+32=64

8 goes into 64 8 times so it would be 8 by 8

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3 years ago

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Original Price: $22.56 Tax: 7.3% Final Price

Colt1911 [192]

Just take 7.3% of 22.56, and add it to the total cost

$24.21

To find the percentage of a number, Multiply the number by the percent, divide by 100, round.

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3 years ago

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You ordered two digital cameras online that cost $364 each.edhelper offers a 15% discount off the digital camera.You pay no tax,

iris [78.8K]

The costs of the digital Camera is $185.00 dollars The sales tax rate is said to be 5.7%. Now, let’s solve for the final price by simply adding 5.7% to the original price. Solutions: => 185 dollars – original price => 5.7% - sales tax => 5.7% = 5.7 / 100 = .057 Let’s get the 5.7% value => 185 * .057 = 10.545 Now, we have the value, let’s add this to the original price of the camera => 185 + 10.545 = 195.545 Thus, the final price with the sales tax is 195.55

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3 years ago