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3 years ago

F(x) = -4x2 + 19 Find f(-7)

Mathematics

1 answer:

faust18 [17]3 years ago

7 0

Step-by-step explanation:

Solution,

f(x) = -4x2 + 19

f(x)=-8+19

f(x)=27

As it is a constant function, therefore

f(-7)=27

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A theater has a discount pass that cost nine dollars with the past admission is $6.50 per movie. mike tyrell and juanita all bou

tia_tia [17]

Answer:

They saw 24 movies.

Step-by-step explanation:

The question is incomplete so the complete question is below:

A theater has a discount pass that cost nine dollars with the pass, admission is $6.50 per movie. Mike, Tyrell and Juanita all bought a pass and went to see movies together they spent a total of $183. Write and solve an equation to find out how many movies they saw.

Now, to find the number of movies they saw.

Let the number of movies they saw be $x.$

Discount pass = $9.

With the pass admission per movie is $6.50.

Total number of people = 3.

Total money spent = $183.

So, to get the number of movies they saw we write an equation:

$3(9)+6.50(x)=183$

Now, to solve the equation:

$3(9)+6.50(x)=183$

$27+6.50x=183$

Subtracting on both sides by 27 we get:

$6.50x=156$

Dividing both sides by 6.50 we get:

$x=24.$

Therefore, they saw 24 movies.

4 0

3 years ago

Decide whether each expression is equivalent to 0.75t-21. 3/4t-21 3/4( t-21) 0.75( t-28) t-0.25t-21. Explain how you know

butalik [34]

Answer: expression 1,3 and 4 are equivalent to 0.75t-21.

Step-by-step explanation:

Expression 1

3/4t-21

= 0.75t - 21

Expression 2

3/4( t-21)

Multiply through by 0.75

= 0.75 ( t - 21 )

= 0.75t - 15.75

Expression 3

0.75( t-28)

Multiply through by 0.75

= 0.75t - 21

Expression 4

t-0.25t-21

let t = 1

1-0.25t - 21

= 0.75t - 21

expression 1,3 and 4 are equivalent to 0.75t-21.

6 0

3 years ago

How to write expanded form 314,207

dangina [55]

Three hundred fourteen thousand two hundred and seven

6 0

3 years ago

Read 2 more answers

Please help I will give brainliest

steposvetlana [31]

Answer:

(rs)(4) = 8

(r/s)(3) = 2

Step-by-step explanation:

it was on my hw.

8 0

3 years ago

ESTIMATING please show all working out please!! thanks!!

GaryK [48]

1) 304 would round to 300, 9.96 would round to 10, and 0.51 would round to 0.5, so your final expression would be (300 × 10)/0.5. 300 × 10 = 3000, and 3000 ÷ 0.5 = 6000, which is your answer.

2) 6.7 would round to 7, 192 would round to 200, and 0.051 would round to 0.05. (7 × 200)/0.05. 7 × 200 = 1400, and 1400 ÷ 0.05 = 28,000, which is your answer.

I hope this helps!

5 0

3 years ago