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3 years ago

Seven years less than 13 times the age

Mathematics

1 answer:

forsale [732]3 years ago

3 0

It is leomar de tdegvs fef fuwhf sf sfwvfsahfbas feufbasefbsafhsef/

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I WILL GIVES BRAINLIEST!!!!

andrew-mc [135]

Answer:

3 1/3 cups

Step-by-step explanation:

one and one half dozen = 1.5 * 12 = 18 cookies

18 cookies 90 cookies

---------------- = -------------

2/3 cup x cups

using cross products

18 * x = 2/3 * 90

18 x = 60

divide each side by 18

x = 60/18

divide top and bottom by 6

x = 10/3

change the improper fraction to a mixed number

3 goes into 10 3 times with 1 left over

x = 3 1/3 cups

6 0

3 years ago

What value of n makes the equation true?

Anastasy [175]

Answer:

Step-by-step explanation:

$(4^{3} /4)^{3} = 4^{n} \\(4^{2})^{3} = 4^{n} \\4^{6} = 4^{n} \\n=6$

5 0

3 years ago

Integrate sin²2x cos²2x dx

DochEvi [55]

$\sin^2x=\dfrac{1-\cos2x}2$
$\cos^2x=\dfrac{1+\cos2x}2$

From the identities above, you have

$\sin^22x\cos^22x=\dfrac{(1-\cos4x)(1+\cos4x)}4=\dfrac{1-\cos^24x}4$

Applying once more, you have

$\dfrac{1-\cos^24x}4=\dfrac{1-\dfrac{1+\cos8x}2}4=\dfrac{1-\cos8x}8$

So,

$\displaystyle\int\sin^22x\cos^22x\,\mathrm dx=\frac18\int(1-\cos8x)\,\mathrm dx=\frac x8-\frac1{64}\sin8x+C$

7 0

3 years ago

Please help I beg please oh please I’ll give brainliest to whoever answers

Darya [45]

Answer: The third option is correct

Step-by-step explanation: With increased trials, experimental probability will grow closer to theoretical probability. Blue pens make up 1/2 of the probability pool.

8 0

3 years ago

As the angle θ increases to 90° the value of tan(θ)

Nutka1998 [239]

Answer:

C. increases rapidly.

Step-by-step explanation:

tan(θ) = sin(θ)/cos(θ)

Now, when sin 90 = 1

and cos 90 = 0

so, tan(90) = 1/0 = not defined.

<em>(1/0 is infinity and its value is not defined)</em>

So, when angle θ increases to 90°, then the value of tan(θ) increases rapidly, as shown in the figure below.

5 0

3 years ago