3 years ago

Please help with this question ASAP!!

Mathematics

1 answer:

diamong [38]3 years ago

4 0

Graph the inequality by finding the boundary line, then shading the appropriate area.
y>2x-5

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If a is the average (arithmetic mean) of 4x and 7, b is the average of 5x and 6, and c is the average of 3x and 11, what is the

Debora [2.8K]

Answer:

2x+4

Step-by-step explanation:

Given that a is the average (arithmetic mean) of 4x and 7, b is the average of 5x and 6, and c is the average of 3x and 11

By definition of arithmetic mean,

we have $a=\frac{4x+7}{2} \\b=\frac{5x+6}{2} \\c=\frac{3x+11}{2}$

Let us calculate sum of a,b,c in terms of x

a+b+c = $\frac{4x+7+5x+6+3x+11}{2} \\=6x+12$

Average = sum/3 = $\frac{6x+12}{3} =2x+4$

7 0

4 years ago

The perimeter of the triangle below is 99 units. Find the length of side WX.

frez [133]

Answer:

Step-by-step explanation:

Perimeter= 99

XV+VW+WX=99

4z+3z+1+z+2=99

8z+3=99

8z= 96

z=96/8

z= 12

WX= z+2= 12+2= 14.

Hope it helps :-)

8 0

3 years ago

Which inequality does the number line represent? A) 2x + 7 < 1 B) x − 3 ≥ −7 C) −3(x − 2) ≤ 12 D) −5(3x − 10) ≥ −10

vaieri [72.5K]

Answer:

compound Inequalities.

8 0

3 years ago

How to factor x^2 +3x-4

Vikki [24]

(x +4) * (x -1)
****************************************************

6 0

3 years ago

Read 2 more answers

How many cubic yards of concrete are in a light pole caisson having a diameter of 24 inches and a

lesya [120]

Answer:

C. 0.7 yd³

Step-by-step explanation:

Find the volume of cylinder:

V = πr²h

Convert the dimensions into yards:

d = 24 inches = 24/36 yards = 2/3 yards ⇒ r = 1/2d = 1/2*2/3 = 1/3 yards
h = 6 feet = 6/3 yards = 2 yards

Find the volume by substituting the values:

V = 3.14*(1/3)²*2 = 0.69777 ≈ 0.7 yd³

Correct choice is C

3 0

3 years ago