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frez [133]
2 years ago
13

Hi everyone! I have a very urgent work so please help me as fast as you could! I beg you. Your immediate action would be kindly

appreciated

Mathematics
1 answer:
romanna [79]2 years ago
3 0

Answer:

-3/8

Step-by-step explanation:

PemDas

2/3 x 3/4= 1/2

3/4 x -1/2 = -3/8

full equation is now

1/2 - 1/2 + -3/8

1/2-1/2 =0

-3/8 remains

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Can someone help me pls
Leviafan [203]

Answer:

Step-by-step explanation:

0.75 feet / day [ 1 day / 24 hours] * [12 inches / 1 foot]

This process is called dimensional analysis. The trick it uses is to cancel out units (like feet or days ) where possible. In this case, 1 day is going to cancel out and leave behind 24 hours. 1 foot will cancel out and leave behind 12 inches.

It is well worth learning how to do this, because the process is done in the higher sciences.

So what you are left with is

0.75 * 12 inches / 24 hours

0.75 inches /hour * 1/2

0.375 inches / hour.

6 0
3 years ago
Molly has 700 pennies. Which expression shows
Rashid [163]

Answer: 28

Step-by-step explanation:

Divide 700 by 25

7 0
3 years ago
10,25,35,45... What's the pattern?
Bumek [7]

Answer:

15

Step-by-step explanation:

The pattern is going by 15 because 10+15=25 and then continue going.

7 0
3 years ago
Rounded to the nearest hundredth, what is the positive solution to the quadratic equation 0=2x2+3x-8?
Basile [38]

Answer:

Step-by-step explanation:

The given quadratic equation is

2x^2+3x-8 = 0

To find the roots of the equation. We will apply the general formula for quadratic equations

x = -b ± √b^2 - 4ac]/2a

from the equation,

a = 2

b = 3

c = -8

It becomes

x = [- 3 ± √3^2 - 4(2 × -8)]/2×2

x = - 3 ± √9 - 4(- 16)]/2×2

x = [- 3 ± √9 + 64]/2×2

x = [- 3 ± √73]/4

x = [- 3 ± 8.544]/4

x = (-3 + 8.544) /4 or x = (-3 - 8.544) / 4

x = 5.544/4 or - 11.544/4

x = 1.386 or x = - 2.886

The positive solution is 1.39 rounded up to the nearest hundredth

8 0
3 years ago
Read 2 more answers
Please help. it’s 7th grade math. (mathematics)))
never [62]

Answer:

4. answer is -48xy

5. answer is 1

Step-by-step explanation:

4. -3/4*-8y*4/3*6x*-1

=6y*4/3*6x*-1

=8x*6x*-1

-48xy

5.

-13.6/x=-13.6/1

If the numerators are the same, the denominators have to too.

5 0
3 years ago
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