Answer: C equilateral triangle
Step-by-step explanation:
It is given in the question that
Abbie decides to start doing crunches as part of her daily workout. She decides to do 10 crunches the first day and then increase the number 2 each day after that.
So the sequence of number of crunches are

Here the first term, a , ia 10 and the constant difference,d, is 2.
To find the nth term, we use the formula of nth term of arithmetic series, which is

Substituting the values of a and d, we will get

Therefore , correct option is d .
Answer:
$4n
Step-by-step explanation:
The variable identified in question 1 isn't given ;
If the cost per unit of fruit = $4
The total cost of fruit will be :
Cost per fruit * number of fruits
If the number of fruits is denoted by the variable, n
The the total cost of fruit will be :
Cost per fruit, $4 * number of fruits, n
Total cost = $4 * n = $4n
Answer:The answer is 25 blocks
Step-by-step explanation: This is because if 17 and -8 are subtracted, you get 25.
Answer:
Step-by-step explanation:
When two angles add up to 90, they are complementary angles
∠a + ∠b = 90
59 + ∠b = 90
∠b = 90 - 59
∠b = 31°