Figure A is a scale image of Figure B. whas the value of x?

Mathematics

2 answers:

kaheart [24]3 years ago

8 0

X = 30, do 45 / 27. which equals 1.66 then times that by 18 to get 30

spayn [35]3 years ago

6 0

X = 30 because the ratio of 27/45 = .6 so 18/.6 is 30

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PLS HELP THIS IS DUE TOMORROW AND I'M SO DUMB

Vitek1552 [10]

To find a perimeter of any shape you just need to add together all the sides of the shape.
For example: /_\ (pretend this is a triangle)
If each side of the triangle is 5 cm, then 5+5+5=15 cm (or you can do 5*3=15 cm)
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8 0

3 years ago

What is the answer

Andrej [43]

Answer:

V = IR
12 volts

Step-by-step explanation:

Starting with ...

I = V/R

Multiply by R to find V:

IR = V

The equation is ...

V = I·R

Using the given values for I and R, we have ...

V = (2)(6)

V = 12 . . . required voltage (volts)

7 0

4 years ago

Which function in Excel is used to perform a test of independence? a. T.TEST b. CHISQ.TEST c. NORM.S.DIST d. Z.TEST

denis23 [38]

Answer:

b. CHISQ.TEST

Step-by-step explanation:

Notation and previous concepts

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The statistic is given by:

$\chi^2 = \sum_{i=1}^n \frac{(O_i-E_i)^2}{E_i}$

In order to calculate the p value we need to have in count the degrees of freedom , on this case $df=(rows-1)(#cols-1)$ . And we can calculate the p value would be given by: