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sergey [27]
3 years ago
9

Write an expression to represent this situation: seven less than the product of four and a number please help me

Mathematics
1 answer:
Studentka2010 [4]3 years ago
3 0
4x-7: "seven less than" means you're going to subtract it from the upcoming value, which is "the product of four and a number". "a number" refers to an unknown variable, which I chose to be x. So put it all together and you get 4x-7
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Write an expression that sho how to use the halving and doubling strategy to find 28×50
swat32
28x50
14x100
7x200=14,000
8 0
3 years ago
Clara's class is going on a trip to the local science museum. Twenty-five students, one teacher, and three parents are going on
yarga [219]

Answer:

$107.50

Step-by-step explanation:

$3.50 = 1 STUDENT

$5.00 = 1 ADULT

TWENTY FIVE STUDENTS = $3.50 × 25 = $87.50

FOUR ADULTS (ONE TEACHER AND THREE PARENTS) = $5.00 × 4 = $20.00

TOTAL COST = $87.50 + $20.00 = $107.50

4 0
3 years ago
A football is kicked toward the goal. the height of the ball is modeled by the function h(t) = −16t2 64t, where t equals the tim
diamong [38]

The function H(t) = -16t^2 + 64t exists in a parabola.

The axis of symmetry of a parabola exists at the midpoint between the two real roots.

The roots exist the solutions of H(t) = 0

To estimate the roots equation exists -16t^2 + 64t = 0

Factor t(-16t + 64) = 0

t = 0 and -16t + 64 =0

-16t + 64 = 0

t = 64 / 16 = 4

t = 4

Then the two roots are t = 0 and t = 4, and the axis of symmetry exists

t = (0+4)/2 = 4/2 = 2

<h3>How to estimate the axis of symmetry?</h3>

The axis of symmetry exists at t = 2.

It represents the time at which the ball is at the higher point, the maximum height.

You can find the maximum height replacing t = 2 in the function H(t)

H(t) = -16(2^2) + 64(2)

= 64 feet.

And you can also deduce that the second part of the flight will take 2 seconds, for a total flight time of 4 seconds.

To learn more axis of symmetry refers to:

brainly.com/question/21191648

#SPJ4

8 0
1 year ago
Please answer this for me
Pie
3) 2,000.376 inches of water
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5) 4,536 feet
6) 24 feet
5 0
3 years ago
Read 2 more answers
Can someone help me with this?
Crazy boy [7]

Answer:

Step-by-step explanation: What do you need help with??

6 0
2 years ago
Read 2 more answers
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