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Veronika [31]
3 years ago
11

ILL GIVE BRAINLY THING

Mathematics
1 answer:
kvasek [131]3 years ago
8 0

Answer:

A) A = 4x^2 - x - 5

B) f(2) = 9

Step-by-step explanation:

area is L x W, so you multiply 4x - 5 with x + 1

A = (4x - 5)(x + 1)

which gives you

A = 4x^2 - x - 5

you would then plug in 2 for x which gives you your answer of

9

Hope this helps you :)

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£580 is divided between Sushil, Fiona & Pip so that Sushil gets twice as much as Fiona, and Fiona gets three times as much a
Art [367]

Answer:

Fiona gets £ 174

Step-by-step explanation:

Ths problem has three unknowns: the amounts each person gets. So let's identify each amount with a letter to write them in mathematical equation form:

Amount Sushil gets is : "x"

Amount Fiona gets is : "y"

Amount Pip gets is : "z"

Now we write three equations based on the information we have:

1) the addition of all these amounts should equal the 580 total:

x + y + z = 580

2) Sushil (x) gets twice as much as Fiona (y):

x = 2 y

3) Fiona (y) gets three times as much as Pip (z):

y = 3 z

So we can write the first equation in terms of "z" only, by using the appropriate substitutions in the intermediate stes:

Replace every instance of "y" with "3 z":

Equation 2 can give then "x" in terms of "z" as well:

x = 2 y = 2 (3 z) = 6 z

Then Eq 1 becomes:

6 z + 3 z + z = 580

10 z = 580

and therefore:

z = £ 58

Now Fiona's amount (y) is "3 times z", therefore:

y = 3 * 58 = £ 174

3 0
3 years ago
C is directly proportional to d such that
defon

Answer:

we have

C = 1.5d

or

d=C/1.5

Step-by-step explanation:

when d is 12

C=1.5×12=18

when c=15

d=15/1.5=10

5 0
3 years ago
Is 8.4 an irrational number?
zhannawk [14.2K]
No because it is a terminating decimal
3 0
3 years ago
Read 2 more answers
3x2 − y3 − y3 − z if x = 3, y = −2, and z = −5.
tatyana61 [14]
Ok so from experience on this site
3x2=3x^2
people don't know how to put exponents
3x^2-y^3-y^3-z
simplify first

3x^2-2y^3-z

x=3
y=-2
z=-5
3(3^2)-2(-2)^3-(-5)
3(9)-2(-8)+5
27+16+5
48
8 0
3 years ago
Exit Ticket Anyone Can help me?
Umnica [9.8K]

Answer:

okay, so 1 1/6 can be converted to 7/6.

2 3/8 can be converted to 19/8

now find a common denominator, which is 24

7/6 would turn into 28/24

19/8 would turn into 57/24

now add! 28+57= 85/24

85/24

Step-by-step explanation:

please consider marking me as brainliest, my answer took alot of time and I am trying to rank up! have a great day lovely!!

4 0
3 years ago
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