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2 years ago

6

Help help help math math

1 answer:

Salsk061 [2.6K]2 years ago

7 0

Answer:

V = 4000 ft³

Step-by-step explanation:

if diameter is 20 then radius is half that, or 10

use formula:

V = 4/3(3)(10)³

V = 4(10)³

V = 4(1000)

V = 4000 ft³

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Needs to be submitted soon pls help! ASAP! Thank u (also step by step explanation if can)

ozzi

Answer:

$7$

Step-by-step explanation:

$3x+12x+12=7\\15x+12=7\\15x=-5\\x=\frac{1}{3}$

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$3(\frac{1}{3} )+4y=7\\1+4y=7\\4y=6\\y=1.5$

<h3>____</h3>

$3(\frac{1}{3}) +4(1.5)=7$

5 0

1 year ago

Brenda is 4 years older than Walter, and Carol is twice as old as Brenda. Three years ago, the sum of their ages was 35. How old

Ksju [112]

Walter is 35 brenda is 39 and carol 67

6 0

3 years ago

Read 2 more answers

Mikhael wanted to rewrite the conversion factor "1 yard ≈ 0.914 meter" to create a conversion factor to convert meters to yards.

Nataly [62]

Answer:

$1\ meter = 1.094\ yard$

Step-by-step explanation:

Given

$1\ yard = 0.914\ meter$

Required

Create a convert meter to yard expression

$1\ yard = 0.914\ meter$

Divide both sides by 0.914

$\frac{1\ yard}{0.914} = \frac{0.914\ meter}{0.914}$

$\frac{1\ yard}{0.914} = 1\ meter$

$1.09409190372\ yard = 1\ meter$

$1\ meter = 1.09409190372\ yard$

$1\ meter = 1.094\ yard$ --- approximated

6 0

2 years ago

Can somebody help me?????

natta225 [31]

Answer:

1/2 = 3/6

Step-by-step explanation:

.................

6 0

2 years ago

Read 2 more answers

Type the correct answer in each box. Use numerals instead of words. If necessary, use / for the fraction bar(s).

ddd [48]

Answer:

$f'(x) = 4x^2 - 3$ for $x \le -3$

Step-by-step explanation:

See attachment for proper question

Given

$f(x) = -\frac{1}{2}\sqrt{x + 3}$

For

$x \ge -3$

Required

Determine the inverse function

$f(x) = -\frac{1}{2}\sqrt{x + 3}$

Replace f(x) with y

$y = -\frac{1}{2}\sqrt{x + 3}$

Swap the positions of x and y

$x = -\frac{1}{2}\sqrt{y + 3}$

Multiply both sides by -2

$-2 * x =-2 * -\frac{1}{2}\sqrt{y + 3}$

$-2x =\sqrt{y + 3}$

Square both sides

$(-2x)^2 =(\sqrt{y + 3})^2$

$4x^2 =y + 3$

Make y the subject

$y = 4x^2 - 3$

The inverse has been solved. So, we need to replace y with f'(x)

$f'(x) = 4x^2 - 3$

Next, is to determine the interval

$x \ge -3$

Change inequality to $\le$

$x \le -3$

Hence, the inverse function is:

$f'(x) = 4x^2 - 3$ for $x \le -3$

7 0

2 years ago