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3 years ago

Need help, please...

Mathematics

2 answers:

NemiM [27]3 years ago

5 0

Answer:

yes it is .

Step-by-step explanation:

Elodia [21]3 years ago

3 0

No, 10 isnt a solution.
> means more than. the _ under it means or equal to. what the equation is saying is that 10 is more than OR equal to 12. which isnt true because 10 is LESS than 12

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Bethany sells roses and petunias. The expression 3r+2.5p3r+2.5p gives the cost (in dollars) of rr roses and pp petunias. What is

yawa3891 [41]

Answer:

The cost of 7 roses and 8 petunias is $9001

Step-by-step explanation:

We are given expression for cost as

$C=3r+2.5p^3r+2.5p$

where

r is number of roses

p is petunias

We are given

r=7

and

p=8

so, we can plug here

$C=3(7)+2.5(8)^3(7)+2.5(8)$

now, we can simplify it

and we get

$C=9001$

So,

The cost of 7 roses and 8 petunias is $9001

5 0

4 years ago

Read 2 more answers

Please check out my quizlet account and stuff lol its called Tinathefox thats all plz look at my one quiz on it.and read the des

natima [27]

Sure I’ll go check the account.

5 0

3 years ago

Suppose that a function f(x) is defined for all real values of x except at xequals=c. can anything be said about the existence

Margaret [11]

we are given that

f(x) is defined for all values of x except at x=c

Limit may or may not exist

case-1:

If there is hole at x=c , then limit exist

case-2:

If there is vertical asymptote at x=c , then limit does not exist

Examples:

case-1:

$\lim_{x \to c} \frac{x^2-cx}{(x-c)}$

We can simplify it

$\lim_{x \to c} \frac{x(x-c)}{(x-c)}$

$=\lim_{x \to c} x$

$=c$

so, we can see that limit exist and it's value defined

case-2:

$\lim_{x \to c} \frac{1}{(x-c)}$

Left limit is

$\lim_{x \to c-} \frac{1}{(x-c)}$

$=-\infty$

Right Limit is

$\lim_{x \to c+} \frac{1}{(x-c)}$

$=+\infty$

so, we can see that left limit is not equal to right limit

so, limit does not exist

4 0

3 years ago

A decreased by 20% and then increased by 20% express using algebra<br> asapppppp

Ket [755]

Answer:

96%

Step-by-step explanation:

assume the whole number is x

the first thing is decreasing by 20 %

x - 20%x = 80% x

then now the 80%x is the whole number

now It's the turn of increasing

80%x + 20% * (80% x) = 80%x + 16%x = 96% x

I hope this is hlepful to you !!!!

Feel free to ask me in the comments

6 0

3 years ago

Tennis balls: Must rebound approximately 111 cm when dropped from 200 cm. Soccer balls: Must rebound approximately 120 cm when d

Bas_tet [7]

Answer:

There is no basis for comparison because the effect of the other variables that are not being studied are not minimized

Step-by-step explanation:

The rate at which each type of ball bounce are;

Tennis balls;

The height to which the ball is must rebounds ≈ 111 cm

The height from which the ball is dropped = 200 cm

Surface = Steel plate

Basketballs;

The height to which the ball must rebounds ≈ 5.35 inches

The height from which the ball is dropped = 72 inches

Surface = Wooden floor

Squash balls

The height to which the ball must rebounds ≈ 29.5 inches

The height from which the ball is dropped = 100 inches

Steel plate at 70°

Therefore, given that the experimental are performed with different variables of height from which each type of ball is dropped, the surface to which the ball is dropped, the angle of the surface to which the ball is dropped, there is no controlled variable to provide a basis for comparison

5 0

3 years ago