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2 years ago

Factor as the product of two binomials. x^2 + 6x + 9 =

Mathematics

2 answers:

Lina20 [59]2 years ago

8 0

Answer:

(x + 3) (x + 3)

Step-by-step explanation:

This is because if you solve that, it would be x² + 3x + 3x + 9

Therefore it would equal x² + 6x + 9

BaLLatris [955]2 years ago

3 0

Answer:

I need help on this one to its hard

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In the diagram, ATPR ~ AXPZ. Find the length of the altitude PY

ruslelena [56]

8.9 I am pretty sure

6 0

2 years ago

(23.01) In a randomized comparative experiment on the effect of dietary calcium on blood pressure, researchers divided 58 health

Paul [167]

Answer:

$113.7-2.154\frac{9.1}{\sqrt{29}}=110.06$

$113.7+2.154\frac{9.1}{\sqrt{29}}=117.34$

And the 96% confidence is given by (110.06; 117.34)

Step-by-step explanation:

Information given

$\bar X=113.7$ represent the sample mean

$\mu$ population mean (variable of interest)

s=9.1 represent the sample standard deviation

n=29 represent the sample size

Confidence interval

The confidence interval for the mean is given by the following formula:

$\bar X \pm t_{\alpha/2}\frac{s}{\sqrt{n}}$ (1)

The degrees of freedom are given by:

$df=n-1=29-1=28$

The Confidence is 0.96 or 96%, the significance is $\alpha=0.04$ and $\alpha/2 =0.02$ , and the critical value would be $t_{\alpha/2}=2.154$

Replacing the info we got:

$113.7-2.154\frac{9.1}{\sqrt{29}}=110.06$

$113.7+2.154\frac{9.1}{\sqrt{29}}=117.34$

And the 96% confidence is given by (110.06; 117.34)

5 0

3 years ago

You have 5/6 cup of cocoa in your cupboard. A recipe for cookies calls for 2/5 cup of cocoa. How much cocoa would you have left

bixtya [17]

5/6-2/5= 13/30 .........

7 0

2 years ago

What is the slope for y=-5x-6

olga_2 [115]

Answer:

-5 is the slope and -6 is the y intercept

Step-by-step explanation:

This is in the form

y =mx+b where m is the slope and b is the y intercept

y = -5x -6

-5 is the slope and -6 is the y intercept

3 0

3 years ago

48. A map is drawn to a scale of 1cm to represent 50km. If the actual distance between two villages is 480km, what is the distan

lana66690 [7]

Set up a ratio:

1/50 = x/480

Cross multiply:

50x = 480

Divide both sides by 50:

X = 9.6

The distance on the map is 9.6 cm

5 0

3 years ago