All categories

3 years ago

Which expression below equals a rational number, choose all that apply. Please help.

Mathematics

1 answer:

uranmaximum [27]3 years ago

3 0

Answer:

BELOW IN BOLD.

Step-by-step explanation:

4/5 + 3/8

= 47 / 49 which id Rational

√100 + √5

= 10 + √5; - Irrational

7√5 - √245

=7√5 - 7√5

= 0 RATIONAL

Next one = 56 so Rational

Last one is Irrational

You might be interested in

Geometry proofs! 100+ points!

Leona [35]

1. BC/CD = AC/CE      1. Given
2. <BCA is congruent to <ECD              2. Vertical angles are congruent
3. Tr.ACB is congr to Tr.ECD                 3. SAS Similarity

5 0

3 years ago

Read 2 more answers

What is the value of X? (20 points)

Vitek1552 [10]

Answer:

54.5

Step-by-step explanation:

$x \degree = \frac{1}{2} (160 \degree - 51 \degree) \\ \\ x \degree = \frac{1}{2} \times 109 \degree \\ \\ x \degree = 54.5 \\ \\ x = 54.5$

5 0

3 years ago

6-3q < 1 choose all answers that apply

AysviL [449]

Answer:

q>5/3

Step-by-step explanation:

8 0

3 years ago

A normal distribution has a mean of 85.3 and a standard deviation of 4.85. Find the data value corresponding to the value of z g

Mazyrski [523]

Answer: 87.9675

Step-by-step explanation:

Formula for z:

$z=\dfrac{x-\mu}{\sigma}$ , where x= data value corresponding to z, $\mu$ = mean, $\sigma$ = standrad deviation.

Given: $\mu$ =85.3, $\sigma$ =4.85, z=0.55

To find : x

$0.55=\dfrac{x-85.3}{4.85}\\\\\Rightarrow\ 0.55\times4.85=x-85.3\\\\\Rightarrow\ 2.6675=x-85.3\\\\\Rightarrow\ x=85.3+2.6675\\\\\Rightarrow\ x=87.9675$

Hence, The required data value= 87.9675

6 0

3 years ago

What are the six regions of the united states

Lina20 [59]

Answer:

New England.

Mid-Atlantic.

The South.

Mid-West.

The Southwest.

The West.

Step-by-step explanation:

6 0

3 years ago