For question 4: you have to do (y2 - y1) divided by (x2 - x1) to get the rise over run...
5-2
——. = 3/4
11 - 7
For question 5: input the values of x,y and the gradient into the equation of a line.....
y = mx+ c
-8 = 3(-2) + c
-8 = -6 + c
-2 = c
therefore:
y = 3x - 2
Hope this helps! Any questions let me know :)
Answer:
Number of term = 48
Step-by-step explanation:
GIven:
Arithmetic progression
2,5,8..
Total sum of Arithmetic progression is 392
Find:
Number of term
Computation:
First term a = 2
Difference d = 5 - 2 = 3
Sn = [n/2][2a + (n-1)d]
392 = [n/2][2(2) + (n-1)3]
392 = [n/2][4 + 3n - 3]
784 = [n][1 + 3n]
784 = n + 3n²
3n² + n - 784
n = 48 , n = -49
Number of term = 48
Answer:
Step-by-step explanation:
Let's write out a case for two specific questions being correct and the rest being incorrect:
,
The represents the chances of getting the question correct, as there are 5 answers and 1 correct answer choice.
The represents the chances of getting the question incorrect, as there are 5 answers and 4 incorrect answer choices.
The equation above does show the student getting two answers correct and three answers incorrect, but it only shows one possible case of doing so.
We can choose any two of the five questions to be the ones the student gets correct. Therefore, we need to multiply this equation by the number ways we can choose 2 from 5 (order doesn't matter): .
Therefore, the probability the student gets two questions correct is:
Answer:
$3003.2
Step-by-step explanation:
Step 1
Paso 1
Averiguamos cuánto era el 25% de sus ahorros.
Se nos dice en la pregunta que gastó el 33.3% en decoraciones para su nueva casa y si los adornos cuestan $ 250.00.
Esto significa
33.3 % × x = 250
33.3 x/ 100 = 250
Cruz multiplicar
33.3x = 250 × 100
x = 25.000 / 33.3
x = 750.75075075
Por lo tanto, la cantidad o el costo de los adornos = 33.3% del 25% de sus ahorros = $ 750.8
Paso 2
De la pregunta:
Un joven retira el 25% de sus ahorros y
Por lo tanto:
Sea y = monto total de sus ahorros
25/100 × y = $ 750.8
25y = 100 × 750.8.
y = 100 × 750.8 / 25
y = $ 3003.2
Por lo tanto, tenía $ 3003.2 en su cuenta.