MATHEMATICS HIGH SCHOOL

Whats 9+9-289*19/-90pi*3?

Answers

Answer 1
Answer: = 9 + 9 − (289)(19)/(-90)(3.14)(3)
multiply 289*19

= 9 + 9 - 5491/-90(3.14)(3)
add 9 + 9; divide -5491/-90; negative divided by negative is positive

= 18 + (61.0111111111)(3.14)(3)
multiply 61.0111111111*3.14

= 18 + (191.5748888889)(3)
multiply 191.5748888889*3

= 18 + 574.7246666667

= 592.7246666667


ANSWER: 592.7246666667 (round to decimal place required by teacher)

Hope this helps! :)

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Which of the following correctly completes the square for the equation below x2+2x=19A: (x+1)^2=23
B:(x+2)^2=20
C:(x+1)^2=20
D:(x+2)^2=23

Answers

answer is C:(x+1)^2=20

x2 + 2x = 19
x2 + 2x + 1 = 19 + 1
(x + 1)^2 = 20

Select the protractor measuring an angle that is 55°.A. Figure A
B. Figure B
C. Figure C
D. Figure D

Answers

Answer:

A. Figure A

Step-by-step explanation:

The protractor on the top left has an arrow halfway inbetween 50° and 60, making the angle 55°.

Therefore, the answer is Figure A.

Select one of the factors of 5x2 + 7x + 2. A. (5x – 2) B. (x + 2) C. (5x + 1) D. None of the above

Answers

5 x² + 7 x + 2 =
= 5 x² + 5 x + 2 x + 2 = 
= 5 x ( x + 1 ) + 2 ( x + 1 ) =
= ( x + 1 ) ( 5 x + 2 ) 
Answer:
D ) None of the above.

5 x² + 7 x + 2 =

= 5 x² + 5 x + 2 x + 2 =  

= 5 x ( x + 1 ) + 2 ( x + 1 ) =

= ( x + 1 ) ( 5 x + 2 )  

Answer:

D ) None of the above.

Write 2/3 and 3/4 as a pair of fractions with a common denominator

Answers

in short simply we "multiply one fraction's top and bottom by the other's denominator", so let's do so,

\bf \cfrac{2\cdot 4}{3\cdot 4}\implies \boxed{\cfrac{8}{12}}\qquad \qquad \qquad \qquad \qquad \cfrac{3\cdot 3}{4\cdot 3}\implies \boxed{\cfrac{9}{12}}

How many decigrams are in 14 hectograms

Answers

Answer: 14000 decigrams

Step-by-step explanation:

Answer:

14000 decigrams

Step-by-step explanation:

What is the area of wxy?

Answers

A = ¹/₂bh
A = ¹/₂(18)(8)
A = ¹/₂(144)
A = 72 m²
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