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slava [35]
3 years ago
6

I need help it’s a quiz

Mathematics
2 answers:
Alchen [17]3 years ago
7 0

Answer:

38x, 21y, and 24 aka =38x+21y+24

Step-by-step explanation:

the second one is

24a+27b+44

disa [49]3 years ago
6 0

Answer:

#8: 38x + 21y +24

#9: 24a+27b+44

Step-by-step explanation:

#8: 33x+5x=38x     Combine like terms

      15y+6y=21y

      16 + 8 = 24

#8 Answer: 38x + 21y + 24

#9 41a - 17a=24a    Combine like terms

    50b -23b=27b

    26+18=44

#9 Answer: 24a + 27b + 44

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A bouncing ball reaches a height of 54 inches at its first peak, 36 inches at its second peak, and 24 inches at its third peak.
sesenic [268]

Answer:

f(x) = 54(two-thirds) Superscript x minus 1

Step-by-step explanation:

Given that:

First peak : 36 / 54=2/3

Second peak : 24 / 36 = 2/3

The common ratio here is 2/3 ; which mean each bounce height is 2/3 of previous height

Modeling this using geometric progression :

An=a1r^(n-1)

An = nth term of a geometric progression

a1=first term

r=common ratio = 2/3

n = nth term

a1=54

Substituting into the above formular :

An=54(2/3)^(n-1)

4 0
2 years ago
Read 2 more answers
What is 20 5/81 in simplest form
Marizza181 [45]
20 5/81 in its simplest form is 20 5/81.

20 5/81 originally looks like this ⇒ 1625/81

((20 * 81)+5)/81 = (1620+5)/81 = 1625/81   * this is an improper fraction because the numerator is greater than the denominator. Improper fractions must be converted to proper fractions. It will then become a mixed fraction.
 
     <u>  0020  5/81</u>        
81 | 1625
       <u>162      </u>      * 81 x 2
           05

5 0
3 years ago
Why is the equation y-y1=m(x-x1) called the point-slope form?
MatroZZZ [7]

Answer:

The equation of the line with slope m = 2 and passing through the point (1, 1) will be:

y = 2x

Step-by-step explanation:

We know that the point-slope form of the line equation is

y-y_1=m\left(x-x_1\right)

where

  • m is the slope of the line
  • (x₁, y₁) is the point

The formula y-y_1=m\left(x-x_1\right) is termed as the point-slope form of the line equation because if we know one point on a certain line and the slope of that line, then we can easily get the line equation with this formula and, hence, determine all other points on the line.

For example, if we are given the point (1, 1) and slope m = 2

Then substituting the values m = 2 and the point (1, 2)

y-y_1=m\left(x-x_1\right)

y - 2 = 2(x-1)

y - 2 = 2x-2

y = 2x-2+2

y = 2x

Therefore, the equation of the line with slope m = 2 and passing through the point (1, 1) will be:

y = 2x

5 0
2 years ago
Which equation is solved for the variable h? v=by/3
max2010maxim [7]
The equation is given as: v=by/3 but it is actually <span>v=bh/3
</span><span>
Ans, now, we need to solve this for variable h.

So, </span>v=bh/3
On cross multiplying, we get,
3 × v = bh
On dividing the complete equation by "b" we get,
(3×v) / b = (bh)/b 

or  (3×v) / b = h

Thus, the value of h is : 3v/b 
8 0
3 years ago
Is there a solution to 2x^2+7x-4=0?
IgorLugansk [536]

Answer:

x= -8    x= 1

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
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