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Svetradugi [14.3K]

4 years ago

5

Water freezes at 0 celsius and 32 fahrenheit. water boils at 100 celsius and 212 fahrenheit. write degrees celsius as a linear f

unction of degrees fahrenheit.

2 answers:

kenny6666 [7]4 years ago

6 0

Simplifying, we get y -32 = 9x/5 or equal to y = 9/5 x + 32 where x is degrees Celsius and y is degrees Fahrenheit.

ale4655 [162]4 years ago

4 0

Answer:

A

Step-by-step explanation:

water boils at 100 % celsius

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Find how many centimeters are in 4.5 inches, you should

Inessa05 [86]

Answer:

4.5in=11.43cm

Step-by-step explanation:

4.5*2.54=11.43

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3 years ago

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The radius of a cylindrical vessel is 7 cm and height is 1400 m . Find the cost of painting its inner curved surface area at the

Olegator [25]

Answer:

Cost = 616000 DHS per square centimetre.

Step-by-step explanation:

curved surface of a cylinder = 2 $\pi$ rh

r = 7 cm

h = 1400 m = 140000 cm

The outer curved surface area of the cylinder = inner curved surface area of the cylinder

The inner curved surface of the cylinder = 2 $\pi$ rh

= 2 x $\frac{22}{7}$ x 7 x 140000

= 2 x 22 x 1 x 140000

= 6160000

The inner curved surface of the cylinder is 6160000 square centimetre.

But, the cost of painting is at the rate of 10 DHS per square centimetre.

The inner curved surface of the cylinder = 6.16 x $10^{6}$ square centimetre.

cost of painting the inner curved surface area = $\frac{6.16*10^{6} }{10}$

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The cost of painting the inner surface is 616000 DHS per square centimetre.

6 0

3 years ago

MaRussiya [10]

Answer:

1.32

Step-by-step explanation:

Consider ...

x = sec⁻¹(4) . . . . . the inverse secant function of 4, also written arcsec(4)*

Taking the secant of both sides, we have ...

sec(x) = 4

Writing this in terms of more familiar functions, it is ...

1/cos(x) = 4

cos(x) = 1/4

Now, we can use a calculator to find the inverse function. Be sure the calculator is in the appropriate angle mode. We suspect the desired result is in radians.

x = cos⁻¹(1/4) ≈ 1.318116

sec⁻¹(4) ≈ 1.32 . . . . . radians

_____

* One way to read this is "the angle whose secant is 4." This helps remind you that the result is an angle, so can be in degrees or radians (or any of several other angle measures).

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3 years ago

If x - 5y = 6, what is the value of y when<br> X= -4?<br> A:-2<br> B-2/5<br> C:2/5<br> D:2

zysi [14]

Answer:

I think the answer is D. 2

4 0

3 years ago

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A quantity with an initial value of 6200 decays continuously at a rate of 5.5% per month. What is the value of the quantity afte

ELEN [110]

Answer:

410.32

Step-by-step explanation:

Given that the initial quantity, Q= 6200

Decay rate, r = 5.5% per month

So, the value of quantity after 1 month, $q_1 = Q- r \times Q$

$q_1 = Q(1-r)\cdots(i)$

The value of quantity after 2 months, $q_2 = q_1- r \times q_1$

$q_2 = q_1(1-r)$

From equation (i)

$q_2=Q(1-r)(1-r) \\\\q_2=Q(1-r)^2\cdots(ii)$

The value of quantity after 3 months, $q_3 = q_2- r \times q_2$

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From equation (ii)

$q_3=Q(1-r)^2(1-r)$

$q_3=Q(1-r)^3$

Similarly, the value of quantity after n months,

$q_n= Q(1- r)^n$

As 4 years = 48 months, so puttion n=48 to get the value of quantity after 4 years, we have,

$q_{48}=Q(1-r)^{48}$

Putting Q=6200 and r=5.5%=0.055, we have

$q_{48}=6200(1-0.055)^{48} \\\\q_{48}=410.32$

Hence, the value of quantity after 4 years is 410.32.

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3 years ago

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