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3 years ago

Select True or False for each statement. (10pts)

Mathematics

2 answers:

anyanavicka [17]3 years ago

7 0

Answer:

Truth if i believe

Step-by-step explanation:

galina1969 [7]3 years ago

5 0

The answer is true and true

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Solve the compound inequality 5 ≤ x + 2 < 11.

pav-90 [236]

Answer:

x∈[3,9]

Step-by-step explanation

first

x+2≥5

x+2<11

x≥3

x<9

last

x∈[3,9]

4 0

2 years ago

At a sand and gravel plant, sand is falling off a conveyor and onto a conical pile at a rate of 6 cubic feet per minute. The dia

Alla [95]

Answer:

$0.2122\text{ ft per min}$

Step-by-step explanation:

Let r be the radius ( in feet ) of the cone,

So, the diameter of the cone = 2 × radius = 2r feet,

∵ The diameter of the base of the cone is three times the height,

If h represents the height of the cone,

⇒ 2r = 3 × h,

⇒ $r=\frac{3h}{2}$ feet,

∵ Volume of a cone,

$V=\frac{1}{3}\pi R^2 H$

Where,

R = radius, H = height,

Thus, the volume of the given cone is,

$V=\frac{1}{3}\pi r^2 h$

$=\frac{1}{3}\pi (\frac{3h}{2})^2 h$

$=\frac{3}{4}\pi h^3$

Differentiating with respect to t ( time )

$\frac{dV}{dt}=\frac{9}{4}\pi h^2\frac{dh}{dt}$

We have,

$\frac{dV}{dt}=6\text{ cubic ft per min},h=2\text{ feet}$

$6=\frac{9}{4}\pi (2)^2 \frac{dh}{dt}$

$6=9\pi \frac{dh}{dt}$

$\implies \frac{dh}{dt}=\frac{6}{9\pi }\approx 0.2122\text{ ft per min}$

4 0

3 years ago

Consider the sequence of steps to solve the equation: 3(x − 4) + 5x = 9x − 36

castortr0y [4]

Answer:

The additive property of equality.

Step-by-step explanation:

36 is added to both sides of the equation.

3 0

3 years ago

A pillowcase requires 1 1/3 yards of material. If Mrs. Huerta plans to sew six pillowcases, then how many yards of fabric does s

Neko [114]

8 yards bc you just multiply the unit cost of each pillow (1 1/3 yards) by 6 bc that’s the total amount of pillows she’s making

7 0

3 years ago

Read 2 more answers

Plz help me.............

Mars2501 [29]

Ok. 50 soda bottles are made in 2 minutes. We need to know how many could be made in 1. Dividing 2 by 2 gives us one minute. So if we divide 50 by 2, keeping the ratio the same, gives us 25. Thus, 25 bottles can be made in 1 minute. Hope that helps!!!

6 0

3 years ago