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Marrrta [24]
3 years ago
13

Which expression has a negative value?

Mathematics
2 answers:
Andrews [41]3 years ago
3 0

Answer:

A

Step-by-step explanation:

If you add 2 negative numbers the result is negative

AveGali [126]3 years ago
3 0

Answer:

A and D has a negative value

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The answer to this function
ANTONII [103]
 A function does not have an "answer."  In this case you are asked to simplify the given function as much as possible, not to "answer" it.

If f(x) = 2[sqrt(x)] + 1

the only possible simplification is to omit the brackets [   ]:

f(x) = 2sqrt(x) + 1.  END
6 0
3 years ago
A lunch menu has a 4-piece lunch special which consists of a sandwich, soup, dessert and drink. They offer the following choices
ryzh [129]

Answer:

There are 160 possible 4-piece lunch special meal.

Step-by-step explanation:

The lunch menu has a 4-piece lunch special which consists of a sandwich, soup, dessert and drink.

The available options for the sandwiches, soups, desserts and drinks are:

Sandwich: chicken, cheese and tomato, tuna, ham and lettuce, turkey

Soup: tomato, chicken noodle, vegetable

Dessert: ice-cream, piece of cake

Drink: tea, coffee, Coke, Sprite

So, the number of options are:

n (Sandwich) = n (A) = 5

n (Soup) = n (B) = 4

n (Dessert) = n (C) = 2

n (Drink) = n (D) = 4

There are 5 ways to select a sandwich, 4 ways to select a soup, 2 ways to select a dessert and 4 ways to select a drink.

The total number of possible 4-piece lunch special is:

Total number of 4-piece lunch special = n (A) × n (B) × n (C) × n (D)

                                                                =5\times4\times2\times4\\=160\\

Thus, there are 160 possible 4-piece lunch special meal.

8 0
3 years ago
In the regression equation y = -1.2x + 102.45, x represents the number of cloudy school days and y represents the percent of sch
MAVERICK [17]

Answer:

B.80.85%

Step-by-step explanation:

The equation shows that the percent of school attendance depends on cloudy days, in a negative way, which means that the more cloudy days, the less the percentage of students that go to school.

  • Particular, when there are 18 cloudy days, x takes a value of 18, x=18,
  • This means that y= -1.2 (18) + 102.45 which equals 80.85%.

4 0
3 years ago
Simplify.<br><br> 3/4−4x+1/2x−1/2+1/2x<br><br> Enter your answer in the box.
Ket [755]

Answer:

3(1−10x)43(1-10x)4

Step-by-step explanation:

34−4x+12x−212x34-4x+12x-212x

Simplify each term.

Combine 1212 and xx.

34−4x+x2−212x34-4x+x2-212x

Multiply the numerator by the reciprocal of the denominator.

34−4x+x2−(2(2x))34-4x+x2-(2(2x))

Multiply 22 by 22.

34−4x+x2−(4x)34-4x+x2-(4x)

Multiply 44 by −1-1.

34−4x+x2−4x34-4x+x2-4x

Find the common denominator.

Write −4x-4x as a fraction with denominator 11.

34+−4x1+x2−4x34+-4x1+x2-4x

Multiply −4x1-4x1 by 4444.

34+−4x1⋅44+x2−4x34+-4x1⋅44+x2-4x

Multiply −4x1-4x1 and 4444.

34+

5 0
3 years ago
Read 2 more answers
Write an equation for the line in the given form.
nexus9112 [7]

Answer:

  5x +y = 34

Step-by-step explanation:

Since a point and slope are given, it is convenient to start with point-slope form, then rearrange the equation to put it into standard form.

For slope m through point (h, k), the point-slope form of the equation of a line is usually written ...

  y -k = m(x -h)

For m=-5 and (h, k) = (6, 4), the equation is ...

  y -4 = -5(x -6)

  y -4 = -5x +30 . . . . . eliminate parentheses

__

Standard form looks like ...

  ax + by = c

where a > 0 and GCD(a, b, c) = 1. Here's how we can get there.

  5x +y -4 = 30 . . . . . . add 5x

  5x +y = 34 . . . . . . . . . add 4 to get standard form.

3 0
3 years ago
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