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erma4kov [3.2K]
3 years ago
14

Please help, this is due in 5 minutes

Mathematics
1 answer:
yawa3891 [41]3 years ago
4 0
Notice, "x" is a variable, so it varies, it will take on many values.

usually car dealers will say, you need to pay some processing fee, a flat-fee, and after that, you get charged for the "wear and tear" of the car, so by the mileage you drive, the more miles you drive, the more wear and tear, therefore, the more you pay, the less you drive, the less you pay.

0.15x   <---- 15 cents for every "x", miles

if you drive 200 miles you owe 0.15(200)
300 miles the 0.15(300) and so on.

the 22, is never changing in that equation, is a constant, just like the flat-fee.

\bf \stackrel{cost}{y}=\stackrel{\textit{15c per mile}}{0.15x}+\stackrel{flat-fee}{22}
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PLZZZ HELP ASAP solve the quadratic expression. show your work 4x^2=100
zalisa [80]
4x^2 = 100
x^2 = 25
x = + or - 5
x = 5  or  x = -5

Hope this helps.
5 0
3 years ago
PLEASE PLEASE PLEASE HELP ME
lubasha [3.4K]

Answer:

CE = 17

Step-by-step explanation:

∵ m∠D = 90

∵ DK ⊥ CE

∴ m∠KDE = m∠KCD⇒Complement angles to angle CDK

In the two Δ KDE and KCD:

∵ m∠KDE = m∠KCD

∵ m∠DKE = m∠CKD

∵ DK is a common side

∴ Δ KDE is similar to ΔKCD

∴ \frac{KD}{KC}=\frac{DE}{CD}=\frac{KE}{KD}

∵ DE : CD = 5 : 3

∴ \frac{KD}{KC}=\frac{5}{3}

∴ KD = 5/3 KC

∵ KE = KC + 8

∵ \frac{KE}{KD}=\frac{5}{3}

∴ \frac{KC+8}{\frac{5}{3}KC }=\frac{5}{3}

∴ KC + 8 = \frac{25}{9}KC

∴ \frac{25}{9}KC - KC=8

∴ \frac{16}{9}KC=8

∴ KC = (8 × 9) ÷ 16 = 4.5

∴ KE = 8 + 4.5 = 12.5

∴ CE = 12.5 + 4.5 = 17

7 0
3 years ago
You ran for 25 minutes and burned 220 calories. How many calories did you burn per minute?
Bezzdna [24]

Answer:

8.8, you have to do long devision

Step-by-step explanation:

Hope this helps!

3 0
3 years ago
Read 2 more answers
Select all the functions whose graphs include the point (3, 12)
anygoal [31]

1.   Y=4

2.  Y=2

3.  Y=X

4.  Y=2

(X,Y)

i hope this helps

Step-by-step explanation:

8 0
2 years ago
Which of the following graphs shows a parabola with a vertex of (1,-9) and solutions of (-2,0) and (4,0)?
Mariulka [41]

Answer:

Hello,

Step-by-step explanation:

Roots are -2 and 4

y=k*(x+2)(x-4)

Vertex = (1,-9) is a point of the parabola

-9=k*(1+2)(1-4) ==> k=1

Equation of the parabola is y=(x+2)(x-4)

But you don' t have given the graphs !!!!

3 0
2 years ago
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