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
cupoosta [38]
2 years ago
6

. Evaluate each of the following without using a calculator. Show all steps clearly. - 5^2​

Mathematics
1 answer:
Verizon [17]2 years ago
7 0

Answer:

25

Step-by-step explanation:

-5^2 expanded is  -5 x -5

- two negatives equal a positive

-visual representation of 5 x 5

O O O O O

O O O O O

O O O O O

O O O O O

O O O O O

You might be interested in
Determine the central angle and sum of exterior angles of an irregular nonagon
ololo11 [35]

Answer:

Step-by-step explanation:

You cannot find the exterior angles of any irregular nonagon. If it is a regular one, then you can. A regular nonagon has 9 sides and so 9 exterior angles all of which are equal to 360/9 = 40 degrees. The interior angle = 180 - 40 = 140 degrees.

7 0
3 years ago
Let a = 3; x = 2<br><br>c) y = ( a * x ) * x * ( x + 7 )​
Molodets [167]

Step-by-step explanation:

please mark me as brainlest

6 0
3 years ago
Please help me find 'x' your help would be much appreciated <br><br><br> -Thanks
Vladimir79 [104]

Answer:

x=25.

Step-by-step explanation:

We know because of corresponding angles, the sum of the angle adjacent to (2x-5) and (2x-5) is 180 degrees

2x-5+5x+10=180

7x+5=180

7x=175

x=25

4 0
3 years ago
Suppose that nine is a factor of a number which statement has to be true
tensa zangetsu [6.8K]
Since 9 is a factor of an unknown number, that means that that number has to be a multiple of 9. If 9 is the factor of something then that something HAS to be a multiple of 9.
6 0
3 years ago
Robert makes 50 litres of green paint by mixing litres of yellow paint and litres of blue paint in the ratio 2:3.
podryga [215]

Answer:

  • 35%

Explanation:

<u>1. Cost of each liter of yellow paint:</u>

Yellow paint is sold in 5 litre tins and ach tin costs £26, thus the cost of one liter is £26 / 5 liters = £5.2 per liter.

<u>2. Cost of each liter of blue paint:</u>

Blue paint is sold in 10 litre tins and each tin costs £48, thus the cost of one liter of blue paint is £48 / 10 liters = £4.8 per liter

<u>3. Cost of each liter of green paint.</u>

Green paint is made by mixing yellow paint and blue paint in the ratio 2:3

Thus, 5 liters of green paint will cost:

2 liters yellow paint: 2 liter × £5.2 / liter = £10.4

3 liters blue paint:     3 liter × £4.8 / liter = £14.4

                                 ==========              ========

5 liters green paint:   5 liter                        £24.8

Cost of one liter of gree paint: £24.8 / 5 liter = £4.96 / liter

<u>4. Profit</u>

Price of each liter of green paint: £66.96 / 10 liters = £6.696 / liter = £6.70 / liter

Profit per liter = price per liter - cost per liter = £6.70/liter - £4.96 / liter = £1.74 / liter

Percentage profit = profit per liter / cost per liter × 100

Percentage profit = (£1.74 / liter) / (£4.96/liter) × 100 =  35.08% = 35%

4 0
3 years ago
Other questions:
  • 0.067 as a fraction
    5·2 answers
  • A rectangular garden is 30ft wide. If it’s area is 1800ft^2 , what is the length of the garden?
    15·2 answers
  • F(x) = 9 - x, g(x) = x2 + x, h(x) = x - 2 <br> Compute the following: <br> f(g(x)
    15·1 answer
  • #7 I don't know how to solve this
    7·1 answer
  • How many unique triangles can be drawn with side lengths 8 in., 12 in., and 24 in.? Explain.
    8·1 answer
  • What is the equation of the line through the origin and (3,4)
    10·1 answer
  • 6(3c - 5d + 6) =6(3c−5d+6)=6, left parenthesis, 3, c, minus, 5, d, plus, 6, right parenthesis, equals
    8·1 answer
  • Sports American football fields measure 100 yards long between the end zones, and are 53 1_3yards wide. Is the length of the dia
    14·1 answer
  • What is 125 ÷ (2×7) = ???
    12·2 answers
  • Need help finding the one complete period of a non transformed contangent function
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!