All categories

4 years ago

How can I verify that a value for a variable is correct?

Mathematics

1 answer:

jeka57 [31]4 years ago

3 0

Answer:

In problems involving proportions, we can use cross products to test whether two ratios are equal and form a proportion. To find the cross products of a proportion, we multiply the outer terms, called the extremes, and the middle terms, called the means.

Step-by-step explanation:

You might be interested in

Round 6.81 to the nearest tenth

zhenek [66]

6.8 is the answer!!!!

8 0

3 years ago

Factor the polynomial F(x) =x^3-x^2-4x+4 completely.

Norma-Jean [14]

Answer:

Step-by-step explanation:

PART 1:

Possible roots by noticing the coefficient of first term:

x = 1, -1

PART 2:

1 | 1 -1 -4 4

1 0 -4 0

The remainder is zero, hence one factor is (x-1)

PART 3:

$x^3-x^2-4x+4=(x^2-4)(x-1)\\\\x^3-x^2-4x+4=(x+2)(x-2)(x-1)$

PART 4:

$f(x)=(x+2)(x-2)(x-1)\\\\=(x^2-4)(x-1)\\\\=x^3-4x-x^2+4\\\\=x^3-x^2-4x+4$

6 0

3 years ago

Which is great 1.1 or 1.403

satela [25.4K]

1.403 > 1.1
1.1 = 1.100
1.403>1.100

3 0

3 years ago

Read 2 more answers

a satellite cable company charges an installation fee of $50 plus an additional $35.95 per month for service

SashulF [63]

Y=50+35.95x
x is how many months you have it
y is how much you pay total

7 0

3 years ago

The value of y varies directly with x and inversely with

Pani-rosa [81]

Answer:

x = 45 when y = 20 and z = 6

Step-by-step explanation:

The general formula here is y = kx/z²

If x = 24 and y = 6, z = 8, so:

y = kx/z² becomes 6 = k(24)/8², and:

6 1

k = ---------------- = -------------- = 16

24/64 4/64

Then y = 16x/z², and so, if y = 20 and z = 6 (check this!), then:

20 = 16x/36, or 16x = 720, or x = 45

x = 45 when y = 20 and z = 6

3 0

3 years ago

How can I verify that a value for a variable is correct?​

How can I verify that a value for a variable is correct?