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UNO [17]
3 years ago
13

Use the substitution method to solve the system of equations. Choose the correct ordered pair. Y=5x-17 y=x+3

Mathematics
1 answer:
Whitepunk [10]3 years ago
6 0

Answer:

Look at the attachment

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Question 2 of 10<br> Which describes the graph of y = (x-4)2 - 1?
WITCHER [35]

y=(x-4)^2-1:   y=-\frac{4}{5}

Sure hope this helps you

y = -4/5

4 0
2 years ago
A survey of an urban university (population of 25,450) showed that 870 of 1,100 students sampled supported a fee increase to fun
Katen [24]

Answer:

95% confidence interval for the proportion of students supporting the fee increase is [0.767, 0.815]. Option C

Step-by-step explanation:

The confidence interval for a proportion is given as [p +/- margin of error (E)]

p is sample proportion = 870/1,100 = 0.791

n is sample size = 1,100

confidence level (C) = 95% = 0.95

significance level = 1 - C = 1 - 0.95 = 0.05 = 5%

critical value (z) at 5% significance level is 1.96.

E = z × sqrt[p(1-p) ÷ n] = 1.96 × sqrt[0.791(1-0.791) ÷ 1,100] = 1.96 × 0.0123 = 0.024

Lower limit of proportion = p - E = 0.791 - 0.024 = 0.767

Upper limit of proportion = p + E = 0.791 + 0.024 = 0.815

95% confidence interval for the proportion of students supporting the fee increase is between a lower limit of 0.767 and an upper limit of 0.815.

5 0
3 years ago
How much work must be done on a 1000-kg car to increase its speed from 1 m/s
yarga [219]

Answer:

w=f*d

f=ma

f=1000*10

f=10000

w=10000j

4 0
3 years ago
What is the answer to -3(x+6)=​
Amanda [17]
-3x - 18 = 0
-3x = 18
x = -6
7 0
3 years ago
(2x^4-3x^2+4x-9)÷(x+2)
dexar [7]
Working is attached: 2x^3 - 4x^2 + 5x - 6 remainder 3

3 0
3 years ago
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