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Bess [88]
3 years ago
10

-8x + 7y=-16 4x + y=-28

Mathematics
1 answer:
topjm [15]3 years ago
5 0

Answer:

x=-5

y=-8

Step-by-step explanation:

let first equation be equation 1

let second equation be equation 2

so we gather the like terms

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What are the zeros of this function?
tatyana61 [14]

Answer:

Step-by-step explanation:

the zeroes of a function basically mean when y = 0, so basically the x-intercept(s)

in this case, the zeroes are 3 and 6

3 0
3 years ago
Read 2 more answers
Which expression is equivalent to 4(3 plus 5) - 3 x18
Veseljchak [2.6K]

Answer:

-22

Step-by-step explanation:

6 0
3 years ago
I need help ASAP. I'm not good with math.
bonufazy [111]

Given:

The increase in pressure P is the linear function of the depth d.

P(d)=0.445d+14.7

The cost of dinner is $300 and $10 per students.

To find:

The initial value and rate of change and their interpretation.

Find the cost function C where n is the number of students.

Solution:

The slope intercept form of a linear function is

f(x)=mx+b          ...(i)

where, m is rate of change and b is y-intercept or initial value.

We have,

P(d)=0.445d+14.7        ...(ii)

From (i) and (ii), we get

m=0.445,b=14.7

The initial value is 14.7. It means, the pressure at sea level is 14.7 pounds psi.

Rate of change is 0.445. It means, the pressure is increasing by 0.445 pounds psi for every feet.

The cost of dinner is $300 and $10 per students.

Let C(n) be the total cost for dinner and n be the number of students.

Fixed cost = $300

Additional cost for 1 student = $10

Additional cost for n student = $10n

Now,

Total cost = Fixed cost + Additional cost

C(n)=300+10n

Therefore, the required cost function is C(n)=300+10n.

8 0
2 years ago
Please help me<br>simplify<br><img src="https://tex.z-dn.net/?f=%20%5Csqrt%7B32%20-%20%20%5Csqrt%7B50%7D%20%7D%20" id="TexFormul
Mnenie [13.5K]

Answer:

\sqrt{32-5\sqrt{2} }

Step-by-step explanation: I hope it helps :)

\sqrt{32-\sqrt{50} } \\\\simplify \: \sqrt{50} \:to \:5\sqrt{2}  \\\\= \sqrt{32-5\sqrt{2} } \\\\Decimal Form: 4.992888

5 0
2 years ago
A child takes a nap averaging three hours and get an average of 12 hours of sleep at night . Nap time and night time sleep can e
algol13
That should be all of them. Hope it helps
8 0
2 years ago
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