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Ivan
2 years ago
14

If Dominik completes a project by himself, it will take him 8 hours. Working with Katarina, it will take them 5 hours.

Mathematics
2 answers:
Andreas93 [3]2 years ago
7 0
I think the answer is D, I've been told it's D by many people.
OlgaM077 [116]2 years ago
7 0

Answer:

d. 1/8(5)

Step-by-step explanation: just took the test

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Find the first four terms of a sequence using the recursive definition. Please help
Ymorist [56]

Answer:

2, 5, 9, 19

Step-by-step explanation:

Using the recursive formula f(n) = 2f(n - 2) + f(n - 1)

with f(1) = 2 and f(2) = 5

f(3) = 2f(3 - 2) + f(3 - 1)

     = 2f(1) + f(2) = (2 × 2) + 5 = 4 + 5 = 9

f(4) = 2f(4 - 2) + f(4 - 1)

      = 2f(2) + f(3) = (2 × 5) + 9 = 10 + 9 = 19

7 0
3 years ago
The distance between Logan airport and Framingham a car can cover in 20 min. Logan Express bus can cover this distance in 30 min
Ronch [10]
That's a pretty confusing one. I think it's 10 minutes.
4 0
3 years ago
On Planet Galactica, common units of distance are alpha, beta, and gamma. 4 gammas equal 5 betas. 2 betas equal 3 alphas. How ma
Ghella [55]

Answer:

1 gamma = 15/8 alphas

Step-by-step explanation:

so we start by finding out what 1 gamma and 1 beta equals.

we know 4 gammas = 5 betas so if we divide by four on both sides we get:

1 gamma = 5/4 betas. we can apply that same procedure to 2 betas = 3 alphas and get 1 beta = 3/2 alphas

we know that 1 gamma = 5/4 betas and 1 beta = 3/2 alphas so how many alphas = 5/4 betas? using a proportion of ((3/2)/1) = ((x)/(5/4)) we can find that 5/4 betas = 15/8 alphas

therefore we know 1 gamma = 15/8 alphas or 1 and 7/8 alphas

3 0
2 years ago
The longest side of an obtuse triangle measures 20 cm. The two shorter sides measure x cm and 3x cm.
laiz [17]
The answer to your question would be 6.3
7 0
3 years ago
Read 2 more answers
Five more than the product of two and a number, decreased by seven;
PIT_PIT [208]

Answer:

First, write the expression

✔ 5 + 2a – 7

.

Second,

✔ substitute

8 in for the variable, a.

Third,

✔ simplify

by using

✔ order of operations

The answer is

✔ 14

5 0
3 years ago
Read 2 more answers
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