Giving brainliest to the CORRECT answer

Mathematics

1 answer:

eimsori [14]3 years ago

3 0

brainliest pls pls pls

Step-by-step explanation:

x is greater than 1

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Use the expression 5(6 + 4x) to answer the following:

marissa [1.9K]

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3 years ago

Determine the intercepts of the line. y-6=4(x+5)

Westkost [7]

To find the x-intercept, substitute in 0 for y and solve for x. To find the y-intercept, substitute in 0 for x and solve for y.

x-intercept: (−13/2,0)(-132,0)

y-intercept: (0,26)

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3 years ago

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Solve: 2/3x - 3/4 = 5 + 5/6x

Slav-nsk [51]

Answer:

$\large\boxed{x=-\dfrac{69}{2}\to x=-34\dfrac{1}{2}\to x=-34.5}$

Step-by-step explanation:

$\dfrac{2}{3}x-\dfrac{3}{4}=5+\dfrac{5}{6}x\qquad\text{multiply both sides by LCD = 12}\\\\12\!\!\!\!\!\diagup^4\cdot\dfrac{2}{3\!\!\!\!\diagup_1}x-12\!\!\!\!\!\diagup^3\cdot\dfrac{3}{4\!\!\!\diagup_1}=(12)(5)+12\!\!\!\!\!\diagup^2\cdot\dfrac{5}{6\!\!\!\diagup_1}x\\\\(4)(2x)-(3)(3)=60+(2)(5x)\\\\8x-9=60+10x\qquad\text{add 9 to both sides}\\\\8x-9+9=60+9+10x\\\\8x=69+10x\qquad\text{subtract}\ 10x\ \text{from both sides}\\\\8x-10x=69+10x-10x\\\\-2x=69\qquad\text{divide both sides by (-2)}\\\\x=-\dfrac{69}{2}$

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4 years ago

3. Which ordered pair is a solution of the equation y = x – 2? (1 point) (3, 1) (1, 3) (–1, 3) (3, –1)

kozerog [31]

The answer is (3,1)

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3 years ago

What is the volume of a hollow ball whose other radius is 200m and inner radius of 100m? What is the mass if it is iron?

kati45 [8]

Solution :

Volume of ball = Volume of outer ball - Volume of inner ball

$V = \dfrac{4\pi R^3}{3} - \dfrac{4 \pi r^3}{3}\\\\V = \dfrac{4\pi}{3}( R^3 - r^3 )\\\\V = \dfrac{4\pi}{3}( 200^3 - 100^3 )\\\\V = \dfrac{4\pi}{3}(2^3 - 1^3) \times 10^6\\\\V = 2.93 \times 10^7 \ m^3$

Now, density of iron is, d = 7300 kg/m³.

So, mass of iron ball is :

$m = d\times V\\\\m = 7300\times 2.93 \times 10^7 \ kg\\\\m = 2.14 \times 10^{11}\ kg$

Hence, this is the required solution.

5 0

3 years ago