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Ghella [55]
3 years ago
13

Help needed, much appreciated

Mathematics
2 answers:
boyakko [2]3 years ago
8 0

Answer:

7

Step-by-step explanation:

4 x -2 + 3 x 5 = 7

Iteru [2.4K]3 years ago
7 0
You want to substitute the given variables with the one given so you would get 4(-2)+3(5) once you do that you multiply giving you -8+15 after that you add that giving you 7
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Translate to an equation and solve the following: The quotient k and 22 is −66.
Phoenix [80]

Answer:k/22 =-66

k=-1,452

Step-by-step explanation:

6 0
3 years ago
Can I get the answers for number 14 plz?
nataly862011 [7]
A.
-1: 
2(2)^{-1}  \\ 2( \frac{1}{2}) \\  \frac{2}{2}  \\ 1
(-1,1)

0:
2(2)^{0} \\ 2(1) \\ 2
(0, 2)

1:
2(2)^{1}  \\ 2(2) \\ 4
(1, 4)

2:
2(2)^{2} \\ 2(4) \\ 8
(2, 8)

3:
2(2) ^{3}  \\ 2(8) \\ 16
(3,16)

b.
To graph the equation, simply go through the points (-2, 0.5), (-1, 1), (0,2), (1,4), (2,8), and (3,16). Make sure you never go below 0 on the x-axis, because there's an asymptote there.

Hope this helps!
8 0
3 years ago
Read 2 more answers
Holly invested £3000 in a savings account the account paid compound interest of 4% per year work out how much was in the account
pogonyaev
Exponential function 
form of interest rates 

P(1 + r)^x
where p is the prime and r is rate of change and x is time in years 

3000(1 + 4%)^1
The answer would be 
3000(1.04)^1 = 3120 Euros 
3 0
3 years ago
What is x2 + 2x + 9 = 0
vova2212 [387]

Answer:

x has no real solution

Step-by-step explanation:

Our equation is qudratic equation so the method we will follow to solve it is using the dicriminant :

  • Let Δ be the dicriminant
  • a=1
  • b=2
  • c=9
  • Δ= 2²-4*1*9 =4-36=-32
  • we notice that Δ≤0⇒x has no real solution

4 0
4 years ago
5,049 +48=105
Alborosie
<h2>Solution (a) :-</h2>

Let the cost of the less expensive comic book be x .

Then :-

1284 - 11x = x

Using this equation , we can find the cost of the less expensive comic book .

Price of the less expensive book :-

1284 - 11x = x

11x + x = 1284

12x = 1284

x =  \frac{1284}{12}

x = 107

Cost of the less expensive book is 107 .

Therefore , the epice of the less expensive book = $ 107 .

<h2>Solution (b) :-</h2>

Cost of the more expensive book = 11x

Which means :-

1284 - x = 11x

11x + x = 1284

12x = 1284

x = 107

11x = 11 \times 107

= 1177

Therefore , the price of the more expensive book = $ 1177 .

4 0
3 years ago
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