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Fudgin [204]
3 years ago
15

I need some help and my teacher is trying to look at me :|

Mathematics
2 answers:
Tomtit [17]3 years ago
7 0

Answer:

0

Step-by-step explanation:

-5+5= 0

kicyunya [14]3 years ago
5 0

Answer:

0 feet.

Step-by-step explanation:

She swam to an elevation of -5 feet. Then she swam up 5 feet. - 5 + 5 = 0. S0, she is now at an elevation of 0 feet.

Hope this helps! :D

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F(a) = 2a<br> gla) = 4a - 3<br> Find f(g(-1))
Annette [7]

Answer:

first deal with g(-1)

y=4a - 3

a=4y -3 and now make y the subject again

a+3/4...now put it into f(a)

2(a +3/4) simplyifying

a+3/2 as yo final ans

3 0
3 years ago
The area of a rectangle is 20. The length is 3 less than twice the width. Find the length and the width
SIZIF [17.4K]

The length of rectangle is 5 units and width is 4 units.

Step-by-step explanation:

Given,

Area of rectangle = 20

Width of rectangle = w

Length of rectangle = 2w-3

Area = Length * Width

20=(2w-3)(w)\\20=2w^2-3w\\2w^2-3w-20=0

Factorizing

2w^2-8w+5w-20=0\\2w(w-4)+5(w-4)=0\\(2w+5)(w-4)=0

Either;

2w+5=0         =>2w=-5

Or,

w-4 = 0           => w=4

As width cannot be negative, therefore,

width of rectangle = 4 units

length of rectangle = 2w-3 = 2(4)-3 = 8-3 = 5 units

The length of rectangle is 5 units and width is 4 units.

Keywords: area, rectangle

Learn more about rectangle at:

  • brainly.com/question/12919591
  • brainly.com/question/12919988

#LearnwithBrainly

3 0
3 years ago
2x^3+7x^2-4x+7/x^2+2x+2
Paladinen [302]

Answer:

Step-by-step explanation:

7 0
3 years ago
Write your answer without using negative exponents (u^4)^-7
umka21 [38]

Answer:

<h2>\frac{1}{ {u}^{28} }</h2>

solution,

{(u}^{4} \: )^{ - 7}  \\   =  {(u)}^{4 \times ( - 7)}  \\  =  {(u)}^{ - 28}  \\  =  \frac{1}{ {u}^{28} }

Hope this helps...

Good luck on your assignment..

7 0
3 years ago
A bus left Limerick at 11.36am and arrived in Dublin at 3.05pm. How long did the journey take?​
TiliK225 [7]
11:36
12:36 1 hr
1:36 2 hr
2:36 3 hr
24 min
3 pm
5 min
3:05
In total, 3 hr 24 min + 5 min so it’s 3 hr 29 min
7 0
4 years ago
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