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3 years ago

Someone know the answer to this? I need help.

Mathematics

2 answers:

Arisa [49]3 years ago

8 0

Answer:

D. y=20+45

Step-by-step explanation:

You can rule out A because the y-intercept is 45.

It will be D because the increase is 20 and the intercept is 45.

The answer will be y=20x+45

Hitman42 [59]3 years ago

3 0

J, the graph starts at (0,45) so that is your y-intercept (the last number in the equation) and using y2-y1/x2-x1 using the points (6,165) and (0,45) we can do 165-45/6-0 to find 20. hope this helps!

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A: value of g(2) is larger than value of g(-4)

loris [4]

Answer:

$g(2) = 4(2) - 5 \\ = 8 - 5 \\ = 3 \\ \\ g( - 4) = 4( - 4) - 5 \\ = - 16 - 5 \\ = - 21$

The answer is A

8 0

3 years ago

How many solutions does 3.2p-2.5+2.1p=5p-7/2

Sergio039 [100]

Answer:

-3.3...

Step-by-step explanation:

3.2p-2.5+2.1p=5p-7/2

3.2p+2.1p-5p=-7/2+2.5

5.3p-5p=-7/2+2.5

0.3p=-1

p=-1/0.3

p=-3.3

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4 years ago

Mary invests £120000 in a savings account.the account pays 1.5% compound interest per year work out the value of her investment

iris [78.8K]

Answer:

120,027£

Step-by-step explanation:

A=P(1+r/100)^n

120,000(1+1.5/100)^2

=120,027£

hope it helps

5 0

3 years ago

Which number is prime? 36 37 35 38

dybincka [34]

A number is prime if its only divisors are 1 and the number itself.

Out of your numbers, 36 and 38 are even, and thus divisible by 2, so they aren't prime.

Similarly, 35 ends with 5, so it's divisible by 5, and is not prime.

37 is divisible only by 1 and 37, and thus it's prime.

5 0

3 years ago

Please help!! I need the answer to the question in the picture!!!!

zloy xaker [14]

Answer:

$\large\boxed{D.\ x=-2(y+3)^2-1}$

Step-by-step explanation:

The equation of a horizontal parabola in the standard form:

$x=a(y-k)^2+h$

(h, k) - vertex

if a > 0, then open right

if a < 0, then open left

We have the vertrex (-1, -3) and the parabola is open left (a < 0).

Therefore the equation of a given parabola could be:

$x=-2(y-(-3))^2+(-1)=-2(y+3)^2-1$

8 0

3 years ago