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bixtya [17]
3 years ago
5

-4.2x + 31.5= -65.1What is the value of X

Mathematics
2 answers:
xenn [34]3 years ago
8 0

-4.2x+31.5=-65.1

-31.5 -31.5

-4.2x=34.6

I think if anyone thinks I'm wrong correct me plz

mojhsa [17]3 years ago
4 0

Answer:

x =23

Step-by-step explanation:

-4.2x + 31.5= -65.1

Subtract 31.5 from each side

-4.2x + 31.5-31.5= -65.1-31.5

-4.2x =-96.6

Divide each side by -4.2

-4.2x/-4.2 = -96.6/-4.2

x =23

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Which statements apply to the expression
bagirrra123 [75]

Answer:

A, C, D, F

Step-by-step explanation:

Given the expression : (3/5)³

Recall :

a^b where, a = base ; b = exponent

In ; (3/5)^3

Base = 3/5 ; exponent = 3

Similarly ;

a^b = a in b places

(3/5)^3 = (3/5) * (3/5) * (3/5)

(3/5) * (3/5) * (3/5) = (3*3*3) / (5*5*5) = 27/125

Hence, A, C, D and F are all correct

7 0
3 years ago
If a ball is thrown into the air with a velocity of 48 ft/s, its height in feet t seconds later is given by y = 48t − 16t2. Find
dimaraw [331]
The formula for average velocity between two times t1 and t2 of the position function f(x) is (f(t2)-f(t1)) / (t2-t1)
Plugging the values in for the first time period we get (f(2.5)-f(2)) / (2.5-2)
=> (f(2.5)-f(2)) / 0.5
f(2) will be the same for all 4 time periods and is
48(2)-16(2)^2 = 32
Now we plugin the other values
f(2.5) = 48(2.5)-16(2.5)^2 = 20
f(2.1) = 48(2.1)-16(2.1)^2 = 30.25
etc.
f(2.05) = 31.16
f(2.01) = 31.8384
Now plug these values into the formula
(20-32)/0.5 = -24
(30.25-32)/0.1 = -17.5
etc.
= -16.8
= -16.16
Final answer:
2.5s => -24 ft/s
2.1s => -17.5 ft/s
2.05 => -16.8 ft/s
2.01 => -16.16 ft/s
Hope I helped :)
6 0
3 years ago
What is the distance between (-5, 5) and (1, -2)
Murrr4er [49]

Answer:

\displaystyle d=\sqrt{85}\text{, or about 9.22 units}

Step-by-step explanation:

          We will use the distance formula to solve.

\displaystyle d=\sqrt{(x_{2}-x_{1})^2 +(y_{2}-y_{1})^2}

\displaystyle d=\sqrt{(1--5)^2 +(-2-5)^2}

\displaystyle d=\sqrt{(6)^2 +(-7)^2}

\displaystyle d=\sqrt{36+49}

\displaystyle d=\sqrt{85}\text{, or about 9.22 units}

<em>Read more about using the </em><em>distance formula</em><em> here: brainly.com/question/15691280</em>

6 0
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Does anybody know the answer's to, 2,3, and 4?
Jobisdone [24]
2, No solution
3, Infinite many solutions
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7 0
2 years ago
Simplify 2 to the 5 power to the fourth power over 3 to the second power
melisa1 [442]
I'm assuming you mean 2^(5)(4/3)(2). 
So multiplying all of the powers together yields 2^(40/3)
4 0
3 years ago
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