3 years ago

What’s the surface area ?

Mathematics

1 answer:

Svetlanka [38]3 years ago

8 0

Answer:

Step-by-step explanation:

do 11x5 that answer +5+ one more 5 then +2+2+2 =67

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If f(x) = 3x - 5 and g(x) = 7x + 2, what is (f * g)(x)? NEED HELP ASAP!!!!

QveST [7]

Answer:(f*g)(x)= 21x^2 -29x -10

Step-by-step explanation:

(3x-5)(7x+2)

21x^2-35x+6x-10

21x^2-29x-10

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3 years ago

10. The sum of two numbers is 6 less than twice the first number. Their difference is 10 less than four times the second number.

Ilya [14]

Answer:

10 and 4.

Step-by-step explanation:

Let x be the first number.

Let y be the second number.

x + y = 2x - 6

x - y = 4y - 10

x = 4y - 10 + y

x = 5y - 10

(5y - 10) + y = 2(5y - 10) - 6

6y - 10 = 10y - 20 - 6

6y - 10 = 10y - 26

6y - 10y = -26 + 10

-4y = -16

y = 4

x - (4) = 4(4) - 10

x - 4 = 16 - 10

x - 4 = 6

x = 6 + 4

x = 10

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3 years ago

Find the gradient, picture below

hoa [83]

Answer:

$\frac{dy}{dx} = \frac{13}{8}$

Step-by-step explanation:

$y = 2x + 6 {x}^{ - \frac{1}{2} } \\ \frac{dy}{dx} = 2 + 6( - \frac{1}{2}) {x}^{ - \frac{1}{2} - 1 } \\ \frac{dy}{dx} = 2 - 3 {x}^{ - \frac{3}{2} } \\ \frac{dy}{dx} = 2 - \frac{3}{ \sqrt{ {x}^{3} } }$

When x = 4,

$\frac{dy}{dx} = 2 - \frac{3}{ \sqrt{ {4}^{3} } } \\ = \frac{13}{8}$

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2 years ago

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A circle in the standard (x, y) coordinate plane is tangent to the x-axis at 4 and tangent to the y-axis at 4. Which of the foll

irakobra [83]

The answer would be (A) <span>(x − 4)^2 + (y − 4)^2 = 16
</span>

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3 years ago

Ms. Young acquired a loan of $40,000 at her local bank. The loan has a simple interest rate of 6% per year. What is the amount o

soldier1979 [14.2K]

Answer:

12.000

Step-by-step explanation:

40000x6= 240000/100= 2400x5

8 0

3 years ago