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4 years ago

I don’t even know. I really need help with this question.

Mathematics

1 answer:

Klio2033 [76]4 years ago

8 0

Answer: Third option is the answer.

Step-by-step explanation: for example -1+-4= -5, -2 + 1= -1, etc. it is the only one that is right for all equations.

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In 2010 a family membership in a country club cost $18,000 if this cost increased $475 each year since 2010, then how much will

kvasek [131]

Answer:

21,800

Step-by-step explanation:

Because 475 x 8 equals 3800 you add 3800 to 18,000 and get 21,800

4 0

3 years ago

Name a combination of coins that is 65% of the value of a dollar. (SHOW LIst of combination<br>

svet-max [94.6K]

We need a combination of coins that equal 65 cents.

The easiest one is 13 nickels.

Another combination is 6 dimes and 1 nickel.

A third is 2 quarters, 1 dime, and 1 nickel.

The list goes on.

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hope it helps

4 0

3 years ago

PHOTO HERE^<br> help????????

Dmitrij [34]

Please put a thanks so i know your question was answered. It helps since im new here and really boosts my morale :D

if x =4 and y =-3

F = $\frac{ x^{2}-4y }{2} = \frac{ (4)^{2}-4(-3) }{2} = \frac{ 16+12 }{2} = 14$

3 0

3 years ago

NEED ANSWER ASAP BRIANLIEST TO GIVE A house increases in price by 3% each year. If the house starts at £180,000, how much is it

kow [346]

Answer:

£196,690.86 or £196,691

4 0

4 years ago

The graph of y = 1/2 x2 + 2x + 3 is shown. What are the solutions to the equation 1/2 x2 + 2x + 3 = x + 7?

kirill [66]

Answer:

Step-by-step explanation:

Let's organise our information :

the function is (1/2)x²+2x+3

we want to khow the value of x that gives us : (1/2)x²+2x+3=x+7

Now the trick is to write this expression as a quadratic equation with zero at one side :

(1/2)x²+2x+3=x+7

(1/2)x²+2x+3-x-7=0
(1/2)x²+x-4=0

Now let's solve this equation :

a= 1/2
b= 1
c= -4

Δ=1²-4*(1/2)*(-4)

= 9

So we have two solutions :

$\left \{ {{y=\frac{-1-3}{2*0.5} } \atop {x=\frac{-1+3}{2*0.5} }} \right.$

y= -4
x= 2

So the solutions are -4 and 2

3 0

4 years ago