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a_sh-v [17]
3 years ago
10

What is the length...plz help

Mathematics
2 answers:
nikdorinn [45]3 years ago
4 0
The answer is 75 hope this helps


and if you could plz help with me most recent question thank you
morpeh [17]3 years ago
3 0
Use the Pythagorean theorem to solve:

BC = sqrt(21^2 + 72^2)

BC = sqrt(441 + 5184)

BC=  sqrt(5625)

BC = 75

Answer is F

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A recipe uses 5 cups of flour for every 2 cups of sugar. How much sugar is used for 1 cup of flour? Exact answers only
Aloiza [94]

Answer:

0.4

Step-by-step explanation:

Hopefully this can help

7 0
3 years ago
Simplify the expression (2 square root sign 27) - (3 square root sign 32)
monitta

Answer:

3\sqrt{3} - 4\sqrt{2}

Step-by-step explanation:

The expression (2 square root sign 27) - (3 square root sign 32) is 2\sqrt{27} - 3\sqrt{32}.

To simplify, simplify inside the radicals by removing perfect square factors.

\sqrt{27} =\sqrt{9*3} =3\sqrt{3}

\sqrt{32} =\sqrt{16*2} =4\sqrt{2}

The expression becomes 3\sqrt{3} - 4\sqrt{2}.

This cannot be simplified anymore because whats under the radical is not the same.

6 0
2 years ago
Can someone answer this question please?
tester [92]

Answer:

(6, 1)

Step-by-step explanation:

plug in 6 for x and 1 for y in the given equation.

(6) - 3(1) = 3

then use PEMDAS to solve the equation.

-3 x 1 = -3

6 - 3 = 3

3 = 3

this ordered pair is correct because both 6 and 1 make the equation true.

3 0
3 years ago
Evaluate the integral
Kruka [31]

Hello, please consider the following.

\displaystyle \begin{aligned} \int\limits^x {5sin(5t)sin(t)} \, dt &= -\int\limits^x {5sin(5t)} \, d(cos(t))\\ \\&=-[5sin(5t)cos(t)]+ \int\limits^x {25cos(5t)cos(t)} \, dt\\\\&=-5sin(5x)cos(x)+ \int\limits^x {25cos(5t)} \, d(sin(t))\\ \\&=-5sin(5x)cos(x)+[25cos(5t)sin(t)]+ \int\limits^x {25sin(5t)sin(t)} \, dt\\\\&=-5sin(5x)cos(x)+25cos(5x)sin(x)+ \int\limits^x {(25*5)sin(5t)sin(t)} \, dt\end{aligned}

And we can recognise the same integral, so.

\displaystyle (25-1)\int\limits^x {5sin(5t)sin(t)} \, dt= +5sin(5x)cos(x)-25cos(5x)sin(x)

And then,

\displaystyle \Large \boxed{\sf \bf\int\limits^x {5sin(5t)sin(t)} \, dt=\dfrac{5sin(5x)cos(x)-25cos(5x)sin(x)}{24}+C}

Thanks

3 0
3 years ago
Helppppppppppppp pleaseeeeeee fasttttttt
Yuki888 [10]

B

Step-by-step explanation:

YOU MULTIPLY EACH BY 2

4 0
3 years ago
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