Write the following expression in standard form.
-3.2a +5( -7b) + (12.c.4)

Answer:

the length of each side of the square are 6 cm

Answer:

sqrt 4^2+3^2=5

Answer:

perimeter: 36

area: i dont know sorry

Step-by-step explanation:

Step-by-step explanation:

54^2 + a^2 = 90^2

2916 + a^2 = 8100

a^2 = 8100 - 2916

a^2 = 5184

take the square root of 5184

a = 72

you could have also guessed that its a 3 4 5 right triangle

all the sides are multiples of 3 4 or 5

Answer:

41

Step-by-step explanation:

Answer:

A. 29

B. 11

C. 10

D. 12

Step-by-step explanation:

A. 180 - 122 = 58

58 divided by 2 = 29

-

B. 180 - 37 = 143

x = 11

5 x 11 = 55

8 x 11 = 88

55 + 88 = 143 + 37 - 180

-

C. the small box in a triangle means right angle = 90

90 - 68 = 22

(2x - 2) we subtract before finding out what x is

22 - 2 = 20

2x = 20 divide by 2  = 10

x is equal to 10

-

D. to find the total, you must figure out what each equation is to add them up to make 180.

(8x + 3) + (2x + 9) + 4x = 180

add up the numbers with x and the numbers without them

14x + 12 = 180

subtract 180 - 12 = 168

168 divided by 14 = 12

x = 12

Hope this helped !!

Answer:

37.9 degrees

Step-by-step explanation:

Using the law of sines, [tex]\frac{\sin(m\angle C)}{21}=\frac{\sin(47^\text{o})}{25}[/tex]. It follows that [tex]\sin (m\angle C) = \frac{21\sin(47^\text{o})}{25} \approx 0.6143371[/tex]. Therefore, [tex]m\angle C = \sin^{-1}(0.6143371)=37.9^\text{o}[/tex].

Answer:

x=-0.5 or x=-1/2

Step-by-step explanation:

Answer:

I think you're missing some basic operations... but i'd love to help you so if you could let me know what the operations are I'd love to help :)

Step-by-step explanation:

Answer:

false

Step-by-step explanation:

508/72=49

127/18=49

127=884

Answer:

D as likely as not.

Step-by-step explanation:

......

Answer:

Explanation:

P (even number) = 3/6 = 1/2

⇒ as likely as not

Answer: 16

Step-by-step explanation:

Use the pythagorean theorem ([tex]a^2+b^2=c^2[/tex]). A and b are the 2 legs, and c is ALWAYS the hypotenuse.

Plug in the values and solve:

[tex]12^2+b^2=20^2\\144+b^2=400\\b^2=256\\b=16[/tex]

Answer:

68 degrees

Step-by-step explanation:

That angle counts as 90 degrees, so all you need to do is subtract 90 from 22 because 90 degrees is the full angle.

90-22=68

Answer:

13

Step-by-step explanation:

Given :

3x + 1/4 y^2

For x = 3 ; y = 4

3(3) + 1/4(4^2)

9 + 1/4(16)

9 + 4

= 13

Answer:

9

Step-by-step explanation:

To solve this just take b (in this case 6x) divide it by 2 and then square it

which means that c=9

this will factor to (x+3)²

Answer:

A) Parallelogram and Rectangle

Step-by-step explanation:

A parallelogram has two pairs of parallel sides. Because a rectangle has two pairs of parallel sides AND 4 right angles, the first option is correct.

Answer:

Parallelogram and rectengle

Step-by-step explanation:

Answer:

[tex]Hypotenuse^2 = 5^2 + 2^2 = 25 + 4 = 29\\\\Hypotenuse= \sqrt{29}\\\\diagonal^2 = (\sqrt{29})^2 + 2^2\\\\diagonal^2 = 29 + 4 = 33\\\\diagonal = \sqrt{33} = 5.7445 = 5.8[/tex]

Answer: 16

Step-by-step explanation:

Answer:

[tex]distance = \sqrt{ {(8 - ( - 8))}^{2} + {( - 6 - ( - 6))}^{2} } \\ = \sqrt{256} \\ = 16 \: units[/tex]

Answer:

Reject Null Hypothesis given that  P-value < ∝

Step-by-step explanation:

Applying the Five ( 5 ) step model and assuming ∝ = 0.05

First step : determine the Null hypothesis

H0 : Age and support for Anti-smoking = independent

Second step : Determine the alternate hypothesis

Ha : Age and support for Anti-smoking ≠ independent

Thirdly : Identify significance level ( ∝ ) = 0.05

4th step : Calculate the Test statistic and P-value

Chi-squared test = 36.1429 using excel function

P-value =  1 - CHISQ.DIST(36.1429, 1, TRUE)  < 0.0001

finally : we can conclude that Age and support for Anti -smoking are not Independent hence we Reject The Null hypothesis. Given that

P-value < ∝

Answer:

1/9

Step-by-step explanation:

1. aa

2. ab

3. ao

4. ba

5. bb

6. bo

7. oa

8. ob

9. oo

Answer:

anwser is 2/11

i took the quiz and picked 1/9 and it sayed that the anwser was 2/11

Answer:

6

Step-by-step explanation:

The median is the central number of a data set. To the left of 6, there are 5 data points. To the right of 6, there are also 5 data points. This means that 6 is the median.

Answer:

6

khan approved, it right.

Answer:

Here is ur answer mate

Answer:

i guess it is B after mid term break formula

Answer:

x³ = 125

y¹ = 10

Step-by-step explanation:

x³

5³ = 125

y¹

10¹ = 10

Answer:

150

Step-by-step explanation:

(5*3) . (10*1) = 150

Hope this helps, good luck!

===================================================

Work Shown:

x = the other number

(5+4i)*x = 41

x = 41/(5+4i)

x = 41*(5-4i)/( (5+4i)*(5-4i) ) ..... see note below

x = 41*(5-4i)/( 41 )

x = (41/41)*(5-4i)

x = 5 - 4i  

As a way to check, (5+4i)*(5-4i) = 5^2+4^2 = 25+16 = 41

The rule used is (a-bi)(a+bi) = a^2 + b^2

-----------

Note:  I multiplied top and bottom by (5-4i) to get rid of the imaginary term in the denominator.

Answer:

10

Step-by-step explanation:

7.5/0.75=10

Answer:

10

Step-by-step explanation: