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Tanya [424]
2 years ago
13

Help me please, i just need an answer

Mathematics
1 answer:
Kruka [31]2 years ago
4 0

Answer:

6

Step-by-step explanation:

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Michaela spent 5/6 of an hour reading on each of 3 days this week. She spent 3/4 of an hour on each of 2 days this week doing sc
Kay [80]
5/6 of an hour is 50 min. So 50 times 3 equals 150 min for reading. 3/4 of an hour is 45 min. 45 times 2 equals 90 min for science. And 1/2 of an hour is 30 min. So 30 times 4 equals 120 mins for math. Add 150,90, and 120 min all together and you get 360 mins total. Divide 360 by 60, and you get 6 hours total that Michaela spent on reading, math, and science. Not 2 1/2.
7 0
3 years ago
What are the solutions to the system of equations?
svet-max [94.6K]

Answer:the third option is correct

Step-by-step explanation:

The system of equations are

y = 2x^2 - 5x - 7 - - - - - - - - - - -1

y = 2x + 2 - - - - - - - - - - - - - 2

We would equate equation 1 and equation 2. It becomes

2x^2 - 5x - 7 = 2x + 2

2x^2 - 5x - 2x - 7 - 2 = 0

2x^2 - 7x - 9 = 0

We would find two numbers such that their sum or difference is -7x and their product is - 18x^2. The two numbers are 2x and - 9x. Therefore

2x^2 + 2x - 9x - 9 = 0

2x(x + 1) - 9(x + 1) = 0

2x - 9 = 0 or x + 1 = 0

2x = 9 or x = - 1

x = 9/2 = 4.5

Substituting x = 4.5 or x = -1 into equation 2, it becomes

y = 2 × 4.5 + 2 or y = 2 × - 1 + 2

y = 11 or y = 0

Therefore, the solutions are

(4.5, 11) (- 1, 0)

6 0
3 years ago
What is 0.5 L/S= M/L
ch4aika [34]

Answer:

1.8e+6

I googled ngl

6 0
3 years ago
\begin{aligned} f(x)&=|x| \\\\ g(x)&=|x | + 1 \end{aligned} f(x) g(x) ​ =∣x∣ =∣x∣+1 ​ We can think of ggg as a translate
Tema [17]

Answer:

To get the function g, shift f by 1 unit.

Step-by-step explanation:

Given

\begin{aligned} f(x)&;=|x| \\ g(x)&;=|x | + 1 \end{aligned}

Required

How do f(x) translates to g(x)

In terms of f(x), g(x) can be represented as:

g(x) = f(x) + k

Where

f(x)= |x|

and

k = 1

<em>This implies that f(x) is vertically shifted 1 unit up to get g(x)</em>

7 0
2 years ago
In triangle ABC, AB = 6 cm, BC = 7cm, ∠B=3 0 . Then
Lynna [10]

Answer:

i think you should search on the internet by copypasting. u will learn it too

Step-by-step explanation:

7 0
3 years ago
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