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steposvetlana [31]
3 years ago
6

A grocery clerk sets up a display of oranges in the form of a triangle using 14 oranges at the base and 1 at the top how many or

anges were used by the clerk to make the arrangement?
Mathematics
1 answer:
Leviafan [203]3 years ago
6 0

Answer:

  105

Step-by-step explanation:

The numbers that can be used to form triangles are collectively called "triangle numbers." The n-th triangle number is the sum of all numbers less than or equal to n. It is ...

  n(n+1)/2

For n=14, the number is 14(15)/2 = 7·15 = 105.

The clerk used 105 oranges to make the arrangement.

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A semi- circle has an area of 35cm . What is its diameter?
patriot [66]

Answer:

<h2>Area Semicircle = 1/2 πr² </h2>

where

r radius of semicircle

→ ½ * 22/7 * r² = 35

→ 11/7 * r² = 35

→ r² = 35*7/11

→ r² = 245/11

→ r² = 22.77

→ r = √22.77

→ r = 4.77

Therefore,

Diameter = 2*4.77

= 9.54 cm

5 0
2 years ago
Part A:
Soloha48 [4]

Answer:

Option D

Step-by-step explanation:

A). From the graph attached,

    Arrow AB represents the RISE and arrow BC represents the RUN.

B). RUN from point A to B (Horizontal distance) = 2 units

    Rise from point A to B (Vertical distance) = -4 [Since, downwards arrow represents negative notation]

    Slope of the line segment AB = \frac{\text{Rise}}{\text{Run}}

                                                       = \frac{-4}{2}

                                                       = -2

   Therefore, slope of the line = slope of the line segment AB = -2

    Option D will be the correct option.

4 0
3 years ago
I needddd heelpppp please
Nostrana [21]
Okay I am not 100% sure because that is an extremely confusing question. But here is what I got.

(A) 2c² = 2bc + ac/2     Given

(B) 4c² = 2bc + ac        Multiplication and Distribution

(C) 4c = 4b + a            Division and Distribution

(D) 4c - a + 4b             Subtraction

(E) 4b = 4c - a              Symmetric
6 0
3 years ago
What is two less than 3 times a number is the same as the number plus 10.
d1i1m1o1n [39]
2 less than (3 times a number) is the same as (the number plus 10)
2 less than (3*x) = (x + 10)
3x - 2 = x + 10
From here, you solve! :)

3x - 2 - x = x + 10 - x
2x - 2 = 10
2x - 2 + 2 = 10 + 2
2x = 12
2x / 2 = 12 / 2
x = 6

Hope this helps! :)
6 0
3 years ago
Shanking draws a line that is 25cm long. Kathi draws a line that is 30cm longer than shaniks line. How long is kathis line
Dvinal [7]

Answer:

55

Step-by-step explanation:

If Kathi´s line is 30cms longer than Shanking´s, you would just add 30 and 25 to get the length of Kathi´s line.

7 0
3 years ago
Read 2 more answers
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