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3 years ago

How are real numbers different than integers?

Mathematics

1 answer:

Evgesh-ka [11]3 years ago

4 0

An integer cannot be rational or irrational. Real numbers are either rational or irrational.

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If the value of y varies directly with x when y=50, x=4. What is the value of y when x=2

den301095 [7]

Answer:

Step-by-step explanation:

The general equation for a direct variation is y = k*x

So your first step (usually) is to find k

y = k x

when x = 4

then y = 50

y = k*x
50 = k * 4 Divide by 4
50 / 4 = k*4/4
12.5 = k

Now you can find the value of y when x = 2

y = k*x
k = 12.5
x = 2
y = ?

y = 12.5 * 2

y = 25

8 0

2 years ago

Hey there can you please help me posted picture of question

mash [69]

We can use quadratic formula to determine the roots of the given quadratic equation.

The quadratic formula is:

$x= \frac{-b+- \sqrt{ b^{2} -4ac} }{2a}$

b = coefficient of x term = 12
a = coefficient of squared term = 4
c = constant term = 9

Using the values, we get:

$x= \frac{-12+- \sqrt{144-4(4)(9)} }{2(4)} \\ \\ 
x= \frac{-12+-0}{8} \\ \\ 
x= \frac{-3}{2}$

So, the correct answer to this question is option B

5 0

2 years ago

What is the length of segment of A’B?

tino4ka555 [31]

Answer:

Step-by-step explanation:

4 0

2 years ago

Read 2 more answers

Which equation is correctly rewritten to solve for x?

ikadub [295]

Answer:

Option (A)

Step-by-step explanation:

Te given equation is,

-qx + p = r

Toe find the value of x,

By subtracting p from both the sides of the equation.

-qx + p - q = r - q

-qx = r - q

By dividing the whole equation by (-q),

$\frac{-qx}{(-q)}=\frac{r-p}{-q}$

x = $-\frac{r-p}{q}$

x = $\frac{p-r}{q}$

Therefore, Option (A) will be the answer.

4 0

2 years ago

Nathaniel has $2 worth of dimes and quarters. He has 6 more dimes than quarters. By following the steps below, determine the num

Aleksandr-060686 [28]

Answer:

10 dimes and 4 quarters

Step-by-step explanation:

Number of dimes = d, each d = 10 c
Number of quarters = q, each q = 25 c
Total = $2 = 200 c

Equations according the given:

10d + 25q = 200
d = q + 6

Solve for q by substitution:

10(q + 6) + 25q = 200
10q + 60 + 25q = 200
35q = 140
q = 140/35
q = 4

Find the value of d:

d = 4 + 6 = 10

Nathaniel has 10 dimes and 4 quarters

8 0

2 years ago