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V125BC [204]
3 years ago
5

Determine whether each system of equations has no solution, one solution, or infinitely many solutions

Mathematics
2 answers:
guapka [62]3 years ago
7 0
It has one solution

Daniel [21]3 years ago
6 0

Answer:

  • One solution

Step-by-step explanation:

<u>Given system:</u>

  • y = -3
  • -3(x + 9) = y

The first equation is a horizontal line, the second equation is a line with a slope of -3.

Since the lines have different slopes, they intersect at one point.

As there is one intersection, the system has one solution.

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2. During typhoon Ambo, PAGASA tracks the amount of accumulating rainfall. For
Luda [366]

Answer:

The piecewise equation is given as :A(t)=\begin{cases} 25x& \text{ if } 0 \leq x \leq 3 \\  75& \text{ if } 3

Step-by-step explanation:

Let x be the time in hour and A(x) be the amount of accumulating rainfall at time x.

We are given that in the first three hours the rain fell at a constant rate of 25mm per  hour

Amount of rainfall in 1 hour = 25

Amount of rainfall in t hours = 25x

A(x) = 25x ; 0 \leq x \leq 3

The rain then slows down and remains constant

So, Amount of rain for that hour = 25 \times 3 = 75 mm

75 mm ; 3

Now we are given that started again at a constant rate of 20 mm  per hour for the next two hours.

Amount of rain after 4 hours = 75+20(x-4) ; 4 \leq x\leq 6

The rain increases at a rate of 20t from 4 ≤ x ≤ 6.

Hence the piecewise equation is given as :A(t)=\begin{cases} 25x& \text{ if } 0 \leq x \leq 3 \\  75& \text{ if } 3

7 0
3 years ago
13........................
Trava [24]

Answer:

C.

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
If a math problem asks you about how much something is for division , will the problem make you estimate?
postnew [5]

Answer:

Yes

I hope this answers your question!

Step-by-step explanation:

How do you estimate a division problem?

You can use multiplication to check your division answer this way.

1) Do the division problem.

2) Multiply the quotient times the divisor.

3) If there is a remainder, add it to the multiplication product.

4) Compare this answer to the dividend. They should be the same number (630 = 630).

8 0
3 years ago
I need help I have to turn it in tomorrow
m_a_m_a [10]

Hello.

I'm not sure which question you need help for, so I'm going to answer both.

TOP: The improper fraction for the mixed number is 16/3. Multiply the whole number and denominator, then add the numerator.

BOTTOM: The number rounded to the nearest hundredth is 765.88.

7 0
4 years ago
Read 2 more answers
A mortgage company offers a loan for 30 years at an
natulia [17]

Answer: C

Step-by-step explanation:

8 0
3 years ago
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