All categories

3 years ago

Find" r". Round to the nearestwhole number.R = 1,750F= 63.2W = 148r=R-2RF/W

Mathematics

1 answer:

Anika [276]3 years ago

3 0

r = 255

r = R-2RF/W

R = 1,750

F = 63.2

W = 148

Now, we need to plug the values in to substitute the variables with real numbers.

r = 1750-2(1750 x 63.2)/148

First, solve for the parentheses.

r = 1750-2(110600)/148

Second, multiply by 2.

r = 1750-221200/148

Next, divide by 148.

r = 1750 - 1494.594

Then, we subtract.

r = 255.406

Lastly, we round it to the nearest whole number.

r = 255

You might be interested in

.7 pls :P need this so I don’t fail math

Masteriza [31]

Answer:

Step-by-step explanation:

distribute 1/2 into 2x and 4, if both sides match then its infinitely many solutions !

7 0

2 years ago

What is the hcf of 45 and 100

Ira Lisetskai [31]

Answer:

45 100

/ \ / \

3 × 15 2×50

/ \ / \

3× 5 2×25

/ \

5×5

45 : 3×3×5

100: 2×2×5×5

common : 3×5

HCF: 15

6 0

2 years ago

If f(x)=x^4+3x^3-x^2+6, find f(-3).

docker41 [41]

Answer:

f(-3) = -3

Step-by-step explanation:

Step 1: f(x) means "f of x" and f(-3) means "f of -3", so you have to replace all the "x" letters in the function with the value -3.

$f(x)=x^4+3x^3-x^2+6\\f(-3)=(-3)^4+3(-3)^3-(-3)^2+6$

Step 2: Apply the exponents. Make sure you remember to put in the -3 and not just 3.

$f(-3)=81+3(-27)-9+6$

Step 3: Use BEDMAS rules to complete the calculation.

$f(-3)=81-81-9+6$

$f(-3)=-3$

Therefore the answer is f(-3) = -3.

4 0

2 years ago

What is the greatest common factor of the two expressions? 7a^2 8a^3b^2

Andreyy89

Answer:

a²

Step-by-step explanation:

(see attached for reference)

We can find GCF by expressing each expression into their prime factors

7a² = 7 x a x a

8a³b² = 8 x a x a x a x b x b

by observation, we can see that a x a or a² shows up in both expressions, highlighted in bold here:

7a² = 7 x a x a

8a³b² = 8 x a x a x a x b x b

Hence the greatest common factor is a x a = a²

6 0

3 years ago

What is the equation of a parabola with vertex (0, 0) and directrix x = -3.

miv72 [106K]

Answer:

${y}^{2}= 12x$

Step-by-step explanation:

The standard equation of a parabola with vertex at the origin and and directix x=-p is of the form

${y}^{2} = 4{p}x$

Where p is simplify the distance from the origin to the directrix.

That is

$p = 3$

${y}^{2} = 4 \times 3x$

This simplifies to

${y}^{2}= 12x$

3 0

2 years ago

Find" r". Round to the nearestwhole number.R = 1,750F= 63.2W = 148r=R-2RF/W​

Find" r". Round to the nearestwhole number.R = 1,750F= 63.2W = 148r=R-2RF/W