All categories

3 years ago

Algebra Evaluate each expression for the given value of x

Mathematics

1 answer:

Andrew [12]3 years ago

5 0

Answer:

Step-by-step explanation:

Substitute 7 as x in the original equation, (9x-13)

9(7)-13

1) Multiply 9 and 7:

63-13

2) Subtract:

You might be interested in

For each of these relations on the set {21, 22, 23, 24}, decide whether it is reflexive, whether it is symmetric, whether it is

bonufazy [111]

Answer:

Step-by-step explanation:

I. { (22,22) , (22,23) , (22,24) , (23,22) , (23,23) , (23,24) }

Reflexive : True because we see the pairs (22,22) , (23,23)..

Symmetrix : NO, as we see the pairs (22,24) BUT NOT (24,22)

Transitive : YES, As we see (22,22 ) and (22, 24) , we see the pairs (22,24)

Antisymmetric : NO

II){ (21,21) , (21,22) , (22,21) , (22,22) , (23,23) , (24,24) }

Reflexive : True because we see the pairs (22,22) , (23,23) (21,21)

Symmetrix : Yes, as we see the pairs (21,22) AND (22,21)

Transitive : YES,

Antisymmetric : NO

7 0

3 years ago

Read 2 more answers

Which of the following examples illustrates ordinal numbers?

Margaret [11]

Answer:

30-5×2 of 3+(19-3) ÷8

Step-by-step explanation:

30-5×6+(19-3)÷8

30-5×6+16÷8

30-30+8

38-30

6 0

2 years ago

HELP ASAP!!!!!!!!! I gave almost half of my points plz plz plzzzzz!!!

faltersainse [42]

Answer:

heyy dejanae

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

A. -5 B. 11 C. 38 - 8i D. 3+ 8i

siniylev [52]

Answer:

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

Recall the chapter example which described the fact that the mean IQ in large, diverse populations is 100 and the standard devia

vova2212 [387]

Answer:

The margin of error for the 99% confidence level for this sample is ±2.23.

None of the given figures is close to the answer:

E. None of the above

Step-by-step explanation:

margin of error (ME) around the mean can be calculated using the formula

ME= $\frac{z*s}{\sqrt{N} }$ where

z is the corresponding statistic of the 99% confidence level (2.576)

s is the population IQ standard deviation (15)

N is the sample size (300)

Using these numbers we get:

ME= $\frac{2.576*15}{\sqrt{300} }$ ≈ 2.23

7 0

3 years ago