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Kamila [148]
3 years ago
13

(x+1)^2 (x-4)(-2x+3) degree? Ld. Coef? y-int?

Mathematics
1 answer:
8_murik_8 [283]3 years ago
6 0
(x + 1)²(x - 4)(-2x + 3)
(x + 1)(x + 1)(x - 4)(-2x + 3)
(x² + x + x + 1)(-8x² + 3x + 8x - 12)
(x² + 2x + 1)(-8x² + 11x - 12)
(-8x^4 + 11x³ - 12x² - 16x³ + 11x² - 12x - 8x² + 11x - 12)
(8x^4 + 11x³ - 16x³ - 12x² + 11x² - 8x² - 12x - 11x - 12)
8x^4 - 5x³ + 15x² - 23x - 12
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Work out the gradient of a line that passes through co-ordinates (3,4) &amp; (6,16).<br>​
Ipatiy [6.2K]

Answer:

4.33

Step-by-step explanation:

Given data

x1= 3

y1=3

x2=6

y2=16

M= y2-y1/x2-x1

substitute

M=16-3/6-3

M= 13/3

M=4.33

Hence the gradient is 4.33

3 0
3 years ago
A school was attempting to determine the proportion of students who have access to the internet in their homes. Demographic data
Likurg_2 [28]

Answer:

Z = -1.789

P value = 0.036807

Step-by-step explanation:

Here

H0: p = 0.85 students will have access to the internet at home

Ha: p < 0.85 students will have access to the internet at home

As per the given data, out of 120 sampled students, 95 have access to internet at home

This is 79.17 % of the total number of sampled students.

The Z values is given by

Z = \frac{p-p'}{\sqrt{\frac{p(1-p)}{n} } }

Substituting the given values, we get -

Z = \frac{0.7917-0.85}{\sqrt{\frac{0.85(1-0.85)}{120} } }\\Z = -1.789

The sample proportion of 0.7917 is about -1.789 standard errors below the population proportion given in the null hypothesis.

Considering, result is significant at p < .05, the P-Value is .036807.

3 0
3 years ago
Evaluate the expression for q = –17 and r = 16. Simplify your answer.<br> r/q+r<br> /=divide
kirill [66]

Answer:

i tried many times but l didn't get the best ans

8 0
4 years ago
Solve by any method (substitution, graphing, linear combination y=x−6 3x+2y=8 (14,8) (0,-6) (4,-2) (3,-3)
aivan3 [116]

Answer:

The answer is (4,-2)

Step-by-step explanation:

y=x-6

3x+2y=8

3x+2(x-6)=8

3x+2x-12=8 Combine like terms

3x+2x-12+12=8+12 add 12 to both sides then combine

5x=20→ x=4

then plug it in to y=x-6→y=4-6→y=-2

5 0
3 years ago
Read 2 more answers
16) through: (1, 1) and (2,-4)
makkiz [27]

Answer:

y= -5x + 6

Step-by-step explanation:

8 0
3 years ago
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