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3 years ago

State whether the following statements are True or False:

Mathematics

1 answer:

levacccp [35]3 years ago

6 0

Answer:

a) False

b) True

c) True

d) False

Step-by-step explanation:

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Find a formula for the described function. an open rectangular box with volume 9 m3 has a square base. express the surface area

Maru [420]

Let

x--------> the length side of the square base

h--------> the height of the box

we know that

the volume of the box is equal to

$V=x^{2} *h\\ V=9\ m^{3}$

$x^{2} *h=9\\\\h=\frac{9}{x^{2} }$

the surface area of the box is equal to

$SA=area\ of\ the\ base+perimeter\ of\ base*height$ (remember that the box is open)

area of the base= $(x^{2})\ m^{2}$

Perimeter of the base= $(4*x)\ m$

height=(h) m

$h=\frac{9}{x^{2}}$

substitute

$SA=x^{2} +4*x*h\\ \\ \\ SA=x^{2} +4*x*\frac{9}{x^{2} } \\ \\ SA=x^{2} +\frac{36}{x}$

we know that

the value of x can not be negative and the denominator can not be zero

therefore

the answer is

the domain of SA is x> 0

the domain is the interval-------------> (0,∞)

6 0

3 years ago

Will mark most brainly

tekilochka [14]

Answer:

19 and 157

Step-by-step explanation:

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3 years ago

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Blababa [14]

Answer:

The answer is 22.

Step-by-step explanation:

Just well use a calculator. If you don't have that then use PEMDAS. Hope it helps.

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3 years ago

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find the 16th term of the arithmetic sequence whose common difference is d=8 and whose first term is a↓1=3

Softa [21]

Answer:

123

Step-by-step explanation:

3 + (16 - 1)8

3 + (15)8

3 + 120

123

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3 years ago

Convert solar days into minutes

Pepsi [2]

Answer:

1 Solar day = 86,400 seconds (SI Base Unit)

1 day = 1,440 minutes

Step-by-step explanation:

If need anymore help just ask I'm not really good at explaining but I'll try just comment haha ☺️

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3 years ago