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Oksi-84 [34.3K]
3 years ago
12

11. The surface area of a triangular prism is 78 square inches. What is

Mathematics
1 answer:
atroni [7]3 years ago
3 0

Answer:

D. 702square inches

Step-by-step explanation:

1. V=78km^3

2. K=∛9

3. K^3=∛9^3

4.9 x 78=702

Rest of the Key for the test is here:

http://mrsaperez.weebly.com/uploads/1/1/0/5/110500127/t8_review_part_2_key.pdf

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Reid's Hardware discounts all riding lawnmowers 8% to customers paying in cash. If Trey paid $1,193.89 in cash for a riding lawn
MArishka [77]

Are there chocies ???

Step-by-step explanation:

8 0
3 years ago
The ratio of boys to girls in a classroom is 7 to 11. If
Vesna [10]

Answer:

Step-by-step explanation:

The ratio of boys to girls is

7

:

11

, and there are

49

boys, so therefore there are

49

7

⋅

11

=

77

girls

Total number of boys and girls in the classroom is

77

+

49

=

126

.

5 0
3 years ago
Determine if the following statement is true or false. (Enter TRUE if the statement is true, enter a counterexample if the state
ehidna [41]

Answer:

The answer is: the satement is FALSE.  

Step-by-step explanation:

The first step is to transform the propositons in the statement into symbols:

A: m is any positive integer

B: n is any positive integer

C: mn is a a perfect square

D: m is a perfect square

E: n is a perfect square

After that we replace the symbols into the statement:

If A and B and C, then D and E

Logical connectives on the satement are:

  • p⇒q conditional (if ...,then...). For this connective the only case when is FALSE is when the antecedent is true and the consequent is false.  
  • p ∧ q conjunction (p and q). For this connective the only case when is TRUE is when the two propositions are true at the same time.  

So now, we are going to replace the logical connectives on the statement:

((A ∧ B) ∧ C)  ⇒ (D ∧ E)

There is a hierarchy in logical connectives, first we evaluate those inside brackets. The principal connective is evaluated at the end. In this particular case, the principal connective is the conditional.

As we have five different propositions, the combinations are given by the following rule:

2^n= 2^5=32

32 different combinations  

In figure 1, added bellow, it shows the construction of truth table.

In figure 2, added bellow, it shows the development of the truth table. In the development, we don't have as a result a tautology, therefore the statement is FALSE.  

Download pdf
<span class="sg-text sg-text--link sg-text--bold sg-text--link-disabled sg-text--blue-dark"> pdf </span>
<span class="sg-text sg-text--link sg-text--bold sg-text--link-disabled sg-text--blue-dark"> pdf </span>
8 0
3 years ago
Describe the solutions of 2-5&gt;n in words
inna [77]
2-5\ \textgreater \ n \ \textgreater \  Switch\;sides \ \textgreater \  n\ \textless \ 2-5 \ \textgreater \  Simplify \ \textgreater \  2-5 \ \textgreater \  -3

n\ \textless \ -3

Hope this helps!
5 0
3 years ago
What are the coefficients of the like terms in this expression? 18x - 9xy + 12x
likoan [24]
Steps to my answer:

18x-9xy+12x

Add similar elements together,  your answer comes out to be:
=30x-9xy
I hope this is what you were looking for! :) 
6 0
3 years ago
Read 2 more answers
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