All categories

3 years ago

Find the value of a. a 52

Mathematics

1 answer:

liberstina [14]3 years ago

7 0

Answer:

because a is gone in b than

You might be interested in

Which statement explains how to correct the error that was made?

Svetradugi [14.3K]

Answer:

I believe that this is the best answer mark brainliest if it is

Step-by-step explanation:

The square root property should have been applied to both complete sides of the equation instead of to select

variables.

4 0

2 years ago

Write the integral that gives the length of the curve y = f (x) = ∫0 to 4.5x sin t dt on the interval [0,π].

Troyanec [42]

Answer:

Arc length $=\int_0^{\pi} \sqrt{1+[(4.5sin(4.5x))]^2}\ dx$

Arc length $=9.75053$

Step-by-step explanation:

The arc length of the curve is given by $\int_a^b \sqrt{1+[f'(x)]^2}\ dx$

Here, $f(x)=\int_0^{4.5x}sin(t) \ dt$ interval $[0, \pi]$

Now, $f'(x)=\frac{\mathrm{d} }{\mathrm{d} x} \int_0^{4.5x}sin(t) \ dt$

$f'(x)=\frac{\mathrm{d} }{\mathrm{d} x}\left ( [-cos(t)]_0^{4.5x} \right )$

$f'(x)=\frac{\mathrm{d} }{\mathrm{d} x}\left ( -cos(4.5x)+1 \right )$

$f'(x)=4.5sin(4.5x)$

Now, the arc length is $\int_0^{\pi} \sqrt{1+[f'(x)]^2}\ dx$

$\int_0^{\pi} \sqrt{1+[(4.5sin(4.5x))]^2}\ dx$

After solving, Arc length $=9.75053$

5 0

3 years ago

{3x + y = 5<br> {5x + 2y = 9<br> Solve using a matrix

alukav5142 [94]

Answer:

Y×-2=-2y

3x×-2=-6x

5×-2=-10

2x=-1

X=-0/5

5 0

2 years ago

Read 2 more answers

30, 400 in decimals

WARRIOR [948]

Step-by-step explanation:

Could you further explain?

4 0

2 years ago

Read 2 more answers

If y varies directly as x and y = 35 when x = 5, find y when x = 11.

Sloan [31]

Answer: 77

<u>Step-by-step explanation:</u>

varies directly means: $\frac{y}{x} = k$

Step 1: solve for k ⇒ $\frac{y}{x} = k$ ⇒ 7 = k

Step 2: input the given value and the k-value to find the unknown value: $\frac{y}{11} = 7$

y = 11(7)

y = 77

3 0

3 years ago