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irga5000 [103]
3 years ago
14

Find the value of the expression -x+y*z-y when x= -3 ; y= -2 and z=5

Mathematics
1 answer:
Anuta_ua [19.1K]3 years ago
7 0

Answer:

-15

Step-by-step explanation:

-3+-2*5-2=-15

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Find the limit as x approaches 0 of x/sin3x
frozen [14]
\lim_{x \to 0}  \frac{x}{sin 3x}  = \\  =\frac{0}{0}= \\ = \lim_{x \to 0}  \frac{3x}{3sin3x}  =
= 1/3  ( because the limit as x approaches 0 of  t/sin t = 1 ). 
5 0
3 years ago
The Math Club is sponsoring a bake sale. If their goal is to raise at least $300, how many pies must they sell at $6.00 each in
soldi70 [24.7K]
Given:
bake sale at least $300
price of each pie is $6.00
let the number of pies be represented by x.

Write the inequality:
6x <u>></u> 300  

Solve the inequality:
6x <u>></u> 300
<u>÷6       ÷6</u>
  x <u>></u> 50

Graph the inequality.
y = 6x

x is the number of pies sold; x at least 50 and gradually increases.
y is the total sales


4 0
3 years ago
Read 2 more answers
Someone answer this please
irina [24]

Answer:

y = - 27/5

Step-by-step explanation:

4(3) - 5y = 39

12 - 5y = 39

-5y = 39 - 12 = 27

y = - 27/5

7 0
3 years ago
Find the value of x when the area of a triangle is 22 in2 and has a base of 3x-1 and height of x.
Virty [35]
The formula for the area of a triangle is (1/2)bh = A
when we plug in the numbers, we get (1/2)(3x-1)x = A
using the distributive property we get (1.5x - .5)x = A
Then its 1.5x^2 - .5x = A
then if we factor out 0.5x we get 0.5x(3x-1) = A
then with the zero product property, 0.5x can equal 0 and x would need to equal 0.
if 3x-1 = 0 , then 3x = 1 then x = 1/3. so our answer would be 1/3 I'm pretty sure because a length cannot be 0
5 0
3 years ago
A Chevy Malibu has a fuel capacity of 18.5 gallons. This vehicle averages 666 miles per tank. Assume the relationship between fu
Nuetrik [128]

Answer:

180 miles

Step-by-step explanation:

Step one:

capacity of tank= 18.5gallons

vehicle averages 666 miles per tank.

Hence, the vehicle can travel 666 miles on 18.5 gallons

Required

The distance covered on 5 gallons

Step two:

vehicle can travel 666 miles on 18.5 gallons

the vehicle will go x miles on 5 gallons

cross multiply we have

5*666= 18.5*x

3330=18.5x

divide both sides by 18.5

x= 3330/18.5

x=180 miles

5 0
3 years ago
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