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3 years ago

Sharonda is plotting quadrilateral PQRS on the graph below She

Mathematics

1 answer:

UkoKoshka [18]3 years ago

3 0

Answer:

7 :)

Step-by-step explanation:

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What number must be added to the expression below to complete the<br> square?<br> x² - 18x

kiruha [24]

Answer:

$\boxed {\boxed {\sf 81}}$

Step-by-step explanation:

The standard form of a quadratic is:

$ax^2+bx+c$

To complete the square, the a (leading coefficient) must be 1 and there can only be terms with variables on one side.

The expression given:

$x^2-18x$

follows these rules. Next, we divide the b (linear coefficient) by 2, then square it. Basically:

$(\frac{b}{2})^2$

The b in the expression is -18.

$(\frac{-18}{2})^2$

$(-9)^2= -9*-9= 81$

This is the number that is added.

5 0

3 years ago

What percentage of the shape is pink

iVinArrow [24]

Answer:

60%

Step-by-step explanation:

here 10 blocks total here among which 6 blocks are pink and 4 not coloured.

so to find the percentage of pink = pink blocks / total boxes

= ( 6 / 10 ) * 100

= 60%

6 0

3 years ago

FIRST ONE TO AWNSER AND IF CORRECT GETS BRAINLYIST AND 50 POINTS!!!!!

Sholpan [36]

Answer:

the answer would be A ? ig

7 0

3 years ago

Help someone <br> Work and correct = brainlist

EastWind [94]

13.

<3 = 180 - <1

<3 = 180 - 90

<3 = 90°

14.

<8 = 180 - <6

<8 = 180 - 137

<8 = 43°

15.

<4 = 180 - <2

<4 = 180 - 34

<4 = 146°

5 0

3 years ago

Factorise x²+8x+12plz give answer

larisa86 [58]

Answer:

(x+6)(x+2)

Step-by-step explanation:

we have

ax²+bx+c

To factor parabolas we need to find a number that adds to b (or 8) and mulitplies to a*c (or 12)

The numbers 6 and 2 fit this criteria which means we have

(x+6)(x+2)

7 0

3 years ago

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