1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
kupik [55]
3 years ago
8

A hotel plans to use marble for part of the floor lobby. The marble section of the floor will be in the shape of a triangle with

a base of 80 feet and a height of 60 feet. The marble flooring costs $6 per square foot. How much will the marble for the floor cost?
Mathematics
2 answers:
lidiya [134]3 years ago
8 0
It will cost $14,400 to do the triangle the hotel plans to do.
cricket20 [7]3 years ago
8 0
The area of a triangle is half the base times the height:

A=\dfrac{b\cdot h}{2}

Thus, the area of the marble section is:

A=\dfrac{80 \cdot 60}{2} = 2,400 \text{ square feet}

If every square foot costs $6, the total cost is:

2,400 · 6 = $14,400
You might be interested in
Figure 1 is transformed to Figure 3, as shown in the diagram. Describe the transformation. A) dilation, then reflection B) refle
tresset_1 [31]
C. hope this helps...
3 0
4 years ago
Read 2 more answers
I need help with this question I’ll give 15 points
weeeeeb [17]

Answer:

Calculating (5 x 2) violates the order of operations

Step-by-step explanation:

According to the order of operations, multiplies all have equal priority. Therefore, they must be evaluated left to right, not right to left. Evaluating (5 x 2) first is incorrect, and instead (9 x 5) should be calculated first.

3 0
2 years ago
Read 2 more answers
Please Solve The Triangle for x
telo118 [61]
What triangle? Is there one on here?
4 0
2 years ago
I got two more pls answer
polet [3.4K]

Answer:

33.) = 4

34.) = 2

35.) = 6

36.) = 6

37.) = 91

38.) = 35

39.) = 4

40.) = 28

41.) = 18

42.) = (-6)

Step-by-step explanation:

<h3>33.)</h3>

(10 + 6) ÷ [(9 – 5) × (5 – 4)²]

(16) ÷ (4) × (1)²

16/4 = 4

Thus, The answer is 4

<h3>34.)</h3>

(3² × 2) ÷ (5 + 8 – 5 + 1)

(9 × 2) ÷ (9)

18/9 = 2

Thus, The answer is 2

<h3>35.)</h3>

6² ÷ {2 + 5 – [9 – (6 + 2)]}

6² ÷ [2 + 5 – (9 – 8)]

36 ÷ [2 + 5 – (1)]

36 ÷ 7 – 1

36/6 = 6

Thus, The answer is 6

<h3>36.)</h3>

(3 × 3 × 2) ÷ (4 – 1)

18/3 = 6

Thus, The answer is 6

<h3>37.)</h3>

4 × 3 × 10 – 4² – (10 + 3)

120 – 16 – 13

120 – 29 = 91

Thus, The answer is 91

<h3>38.)</h3>

5 × [(22 – 1) × 2] ÷ (8 + 2 – 4)

5 × [(21) × 2] ÷ (6)

5 × 42 ÷ 6

5 × 7 = 35

Thus, The answer is 35

<h3>39.)</h3>

-2 × 4 ÷ [2 + (-4) – (-4)] – 4

-8 ÷ (2 – 4 + 4) – 4

-8 ÷ 2 – 4

-8/-2 = 8/2 = 4

Thus, The answer is 4

<h3>40.)</h3>

-4(-1 + 2) × 4 – 2 + (-1)

-4 × (1) × 4 – 2 – 1

(-4) × (-7) = 28

Thus, The answer is 28

<h3>41.)</h3>

-3 – (-3 × 3) + 6 × 2

-3 – (-9) + 12

-3 + 9 + 12

6 + 12 = 18

Thus, The answer is 18

<h3>42.)</h3>

6 – {3² + [3 × (-1)²]}

6 – [9 + (3 × 1)]

6 – (9 + 3)

6 – 12 = -6

Thus, The answer is (-6)

<u>-TheUnknownScientist 72</u>

7 0
3 years ago
Read 2 more answers
Simplify the following expression using imaginary numbers. Express your answer in a + bi form
mamaluj [8]
<h2>Answer:</h2>

0 - 17i

<h2>Step-by-step explanation:</h2>

Given expression;

i⁸⁰ + i³⁸ - i17

To express the expression in the form a+bi;

<em>i. Rewrite the expression such that it contains terms in i²</em>

(i²)⁴⁰ + (i²)¹⁹ - i17

<em>ii. Solve the result from (i) above using the identity i² = -1</em>

We know that the square root of -1 is i. i.e

\sqrt{-1} = i

<em>Squaring both sides gives</em>

<em>=> </em>(\sqrt{-1} )^{2} = i^{2}<em />

=> -1 = i²

Therefore,

i² = -1

<em>Substitute i² = -1 in step (i) above</em>

(-1)⁴⁰ + (-1)¹⁹ - i17

<em>(iii) Solve the result in (ii)</em>

We know that the when a negative number is raised to the power of an even number, the result is a positive number. If it is raised to the power of an odd number, the result is a negative number. Therefore,

(-1)⁴⁰ + (-1)¹⁹ - i17 becomes

1 + (-1) - i17

0 - i17

<em>(iv) Write the result from (iii) in the form a+bi</em>

0 - 17i

5 0
3 years ago
Other questions:
  • Someone please help me with my homework please please help please help me with my homework
    14·1 answer
  • If x = -6, which inequality is true, -5 - 3x &gt; 10, -3 - 5x &lt; -14 or 2-x &lt; -3?
    5·1 answer
  • Liana was going to the park at 12:30pm.She came back at 4:27. How many hours did she stay at the park? Explain.
    7·1 answer
  • Please help me answer :)) <br> Will give brainlst
    11·1 answer
  • HELP NO LINKS NO FILES JUST ANSWERS DUE TODAY
    11·1 answer
  • A muffin recipe calls for 4 cups of sugar and yields 36 muffins. If China only wants to make 24 muffins, how much sugar will she
    13·2 answers
  • A restaurant sells beverages in 16-pint pitchers. If a customer orders a pitcher of lemonade, how many gallons of lemonade does
    15·1 answer
  • Solve the problem below<br><br> 8 ÷ 2(2+2)=
    5·2 answers
  • Please Help!!!
    13·1 answer
  • Roxanne likes to fish. She estimates that 30% of the fish she catches are
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!