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mamaluj [8]
2 years ago
12

Help please 12 points :>

Mathematics
2 answers:
Volgvan2 years ago
4 0
2x+5-0.75x+2= 1.25x+7; Equivalent

x-7+.25x+14= 1.25x+7; Equivalent

x+.25+5+2= x+7.25; Not Equivalent

hope this helps! :)
daser333 [38]2 years ago
4 0
<h2>Answer:</h2>

1)x+.25+5+2=[x= - \frac{28}{5}]=[x=-5.6] EQUIVALENT

2)x-7+.25x+14=[x=-\frac{28}{5}]=[x=-5.6] EQUIVALENT

3)2x+5-0.75x=2=[x=-\frac{29}{4}]=[x=-7.25] IS NOT EQUIVALENT

1.25x+7=[x=-\frac{28}{5}]=[x=-5.6]

<h2>Answer: </h2><h3>1 and 2 are equivalent, 3 is not equivalent!</h3>
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Javier is considering two lawn care services. Premier Landscaping charges $15.00 for travel to the job site and $55.00 per hour
Wittaler [7]

Answer:

Time in which both companies charge same cost = 1.5 hour

Step-by-step explanation:

Given:

                                                        Fixed    Variable

Premier Landscaping charges          $15        $55

Ace Landscaping charges                               $65

Find:

Time in which both companies charge same cost:

Computation:

Assume in X time both companies charge same cost:

So,

Premier Landscaping total cost = Ace Landscaping total cost

⇒ $15 + $55(Time taken) = $65 (Time taken)

⇒ $15 = $65 (Time taken) - $55(Time taken)

⇒ $15 = $10 (Time taken)

⇒ Time taken = 1.5 hour

Time in which both companies charge same cost = 1.5 hour

6 0
3 years ago
F(x)=2x^2-3x+7 evaluate f(-2)
Vilka [71]

Answer:

Step-by-step explanation:

Find two linear functions p(x) and q(x) such that (p (f(q(x)))) (x) = x^2 for any x is a member of R?

Let  p(x)=kpx+dp  and  q(x)=kqx+dq  than

f(q(x))=−2(kqx+dq)2+3(kqx+dq)−7=−2(kqx)2−4kqx−2d2q+3kqx+3dq−7=−2(kqx)2−kqx−2d2q+3dq−7  

p(f(q(x))=−2kp(kqx)2−kpkqx−2kpd2p+3kpdq−7  

(p(f(q(x)))(x)=−2kpk2qx3−kpkqx2−x(2kpd2p−3kpdq+7)  

So you want:

−2kpk2q=0  

and

kpkq=−1  

and

2kpd2p−3kpdq+7=0  

Now I amfraid this doesn’t work as  −2kpk2q=0  that either  kp  or  kq  is zero but than their product can’t be anything but  0  not  −1 .

Answer: there are no such linear functions.

6 0
2 years ago
Help please :) I'd greatly appreciate it
azamat
= 4i (2i) <span>√6
= 8i^2 </span><span>√6 but i^2 = -1
= - 8</span><span>√6</span><span>

</span>
6 0
3 years ago
What figure has properties of all sides congruent and all right angles?
andre [41]
A. Rectangle


Here bestie
7 0
2 years ago
What does the slope of a line represent?
timurjin [86]

Answer:

A.  change in a dependent variable

6 0
3 years ago
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