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3 years ago

I don't know how to do this please help me.

Mathematics

2 answers:

Lorico [155]3 years ago

7 0

Answer:

y = 3/4x - 2

Step-by-step explanation:

First you find b (the second blank) b is the y intercept, so you find that on the graph. You then find the slope (the first blank) by counting up the y axis and over to right on the x axis until you reach a spot that is on a point. For this problem you go up three and over four and that is the slope of the equation.

slava [35]3 years ago

5 0

Answer: I think Y=-2 and X=-2.5

Step-by-step explanation:

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elena55 [62]

This is an altitude. Shown by the right angle on the side opposite the point.

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4 years ago

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Use the given information to find the P-value. Also, use a 0.05 significance level and state the conclusion about the null hypot

Nina [5.8K]

Answer: a. 0.1031; fail to reject the null hypothesis

Step-by-step explanation:

Given: Significance level : $\alpha=0.05$

The test statistic in a two-tailed test is z = -1.63.

The P-value for two-tailed test : $2P(Z>|z|)=2P(Z>|-1.63|)=0.1031$ [By p-value table]

Since, 0.1031 > 0.05

i.e. p-value > $\alpha$

So, we fail to reject the null hypothesis. [When p< $\alpha$ then we reject null hypothesis ]

So, the correct option is a. 0.1031; fail to reject the null hypothesis.

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3 years ago

Simplify........................

Ivahew [28]

Answer:

$\frac {x^{3}-4x^{2}-20x+32}{x^{3}+2x^{2}-4x-8}$

Step-by-step explanation:

make the denominator same

$\frac{(x^{2}-4)(x-2)}{(x^{2}-4)(x+2) }-\frac{(2x+20)(x+2)}{(x^{2}-4)(x+2)}$

then expand

$\frac {x^{3}-2x^{2}-4x+8}{x^{3}+2x^{2}-4x-8} - \frac {2x^{2}+24x+40}{x^{3}+2x^{2}-4x-8}$

join

$\frac {x^{3}-4x^{2}-20x+32}{x^{3}+2x^{2}-4x-8}$

i think but not sure

3 0

3 years ago

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Please help i have to turn in in 6 mins...thanks :)

denis23 [38]

Answer: ~5

Step-by-step explanation:

It's been awhile for me but I think you do sin=opp/hyp

sin(45)=3sqrt(2)/x

x = 3sqrt(2)/sin(45) = (approx) 5

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3 years ago

What is the slope-intercept form equation of the line that passes through (3, 4) and (5, 16)?

irina1246 [14]

Slope between (x1,y1) and (x2,y2) is
(y2-y1)/(x2-x1)
given
(3,4) and (5,16)
slope=(16-4)/(5-3)=12/2=6

y=6x+b
find b
sub a point
(3,4)
(x,y)
4=6(3)+b
4=18+b
minus 18
-14=b

y=6x-14

fist one

7 0

3 years ago

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