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KatRina [158]
2 years ago
7

What is the coefficient in this expression?5 minus 4.7 minus 2 x + StartFraction 5 over 8 EndFractionNegative 4.7Negative 2Start

Fraction 5 over 8 EndFraction5
Mathematics
1 answer:
WITCHER [35]2 years ago
4 0

Answer:

-2

Step-by-step explanation:

i did the test

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Lin’s job pays $8.25 an hour plus $10 of transportation allowance each week. She has to work at least 5 hours a week to keep the
devlian [24]

Answer:

x ≥ 5, 8.25x + 10 = 175, and x = 20 hours.

Step-by-step explanation:

Let Lin works x hours per week.

Now given that Lin’s job pays $8.25 an hour plus $10 of transportation allowance each week.

And she has to work at least 5 hours a week to $175 per week.

So, the inequality that can be written from the above condition is x ≥ 5 .......(1)

And the equation that can be written that

8.25x + 10 = 175 ....... (2)

So now we can write x = 20 hours

Hope this was helpful :)

3 0
3 years ago
When does a linear equation have infinitely many solutions?
Kipish [7]

Answer:

An equation can have infinitely many solutions when it should satisfy some conditions. The system of an equation has infinitely many solutions when the lines are coincident, and they have the same y-intercept. If the two lines have the same y-intercept and the slope, they are actually in the same exact line.

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Suppose that cos = 12/13 what is sin what is cos 2
riadik2000 [5.3K]
First, some housekeeping:

cos = 12/13 is incomplete; "cos" must have an argument (input).

cos x = 12/13 is fine; here "cos" has the argument (input) x.

Given that cos x = 12/13, find sin x.  To do this, we'll need to find the length of the opposite side, given that the hypo length is 13 and the adj. side length is 12.

12^2 + opp^2 = 13^2, or            opp^2 = 169-144 = 25.

Then the opp side could be either 5 or -5.  Let's assume that it's +5, and that angle x is in the first quadrant.

Then sin x = opp / hyp  =  5/13   (answer)


cos 2 is an entirely different kind of problem.  Here you are told what the argument (input) to the cosine function is (it is 2, which here means 2 radians).

Using a calculator:  cos 2 = -0.416.  Note that the angle 2 rad is in QII, which is why the "adjacent side" is negative and also why the cos of 2 is negative.
8 0
3 years ago
What aspect of the town are most at risk for damage by the fire??
Stolb23 [73]

Answer:

Trees.

Step-by-step explanation:

The houses look sturdy, and not that flammable. The trees and grass are very plentiful, so they would spread easily.

Please clarify if this wasn't what you were asking.

7 0
3 years ago
Describe a way to make the arithmetic problem 45% x 680 mentally
lord [1]

Answer:

306.

Step-by-step explanation:

Firstly, we are aware 100% of 680 is obviously 680,

Next, we know half of a 100% is 50% therefore half of 680 is 340.

Then, we know 45% is 5% less than 50%

To find 5% of a number mentally, divide it by 10 as 100÷5=20

680÷20=34

Lastly 50% subtracted by 5%: 340-34=306.

Now we know, 45% of 680 is 306.

<em>Hope this helps.</em>

<em>Hope this helps.Please mark BRAINLIEST.</em>

5 0
3 years ago
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