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emmasim [6.3K]
3 years ago
6

I need help!!

Mathematics
1 answer:
iogann1982 [59]3 years ago
8 0

Answer:

1st is valid 2nd is not valid

Step-by-step explanation:

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Please help with these questions! will mark brainliest.
kykrilka [37]

Answer:

Step-by-step explanation:

no

no

yes

no

no

7 0
3 years ago
What is the solution to the system of equations y= -3x+6 y=9
Alex_Xolod [135]

Answer:

<h2>C. (-1, 9)</h2>

Step-by-step explanation:

\left\{\begin{array}{ccc}y=-3x+6\\y=9\end{array}\right\ \text{put the value of}\ y\ \text{to the first equation}\\\\9=-3x+6\qquad\text{subtract 6 from both sides}\\3=-3x\qquad\text{divide both sides by (-3)}\\-1=x\to x=-1

4 0
4 years ago
Determine the final amount after 20 years with a 5% annual interest rate if:you invest $10 000 in an account that earns compound
alekssr [168]

Answer:

$27,014.85

Step-by-step explanation:

We're gonna use the compound interest formula: P = A(1 + r/n)^nt

P = final amount

A = starting amount (10,000)

r = rate (0.05)

n = times applied (4 since it's quarterly)

t = years (20)

P = 10,000(1 + 0.05/4)^4*20

P = 10,000(1.0125)^80

P = 27,014.84940753337

Round it to just 27,014.85

4 0
3 years ago
Write the word sentence as an inequality
Sedaia [141]

Answer:

\frac{1}{4}q > -16  or \frac{q}{4} > -16

Step-by-step explanation:

3 0
3 years ago
I would enjoy a brief explanation for each one thank you!☺️
Ghella [55]

Step-by-step explanation:

1. 4 3/4=19/4

53/2=13/2

the total change of square will be. 19/4 + 13/2= 19+26/4=45/4

2. total change is 0.7+0.4=1.1

3.-7 1/6= -43/6

3 5/6= 23/6

-43/6 + 23/6 =-20/6 = -10/3

4. metals=2.625(m)

paper=5.58(p)

glass= x

total = 9.5(t)

m + p + x = t

2.625 + 5.58 + x =9.5

8.205 + x = 9.5

x = 9.5 - 8.205

x = 1.295

Hope That Helped

6 0
3 years ago
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