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3 years ago

The product of 51 and a number less than 427 is 185

Mathematics

1 answer:

sweet [91]3 years ago

4 0

Answer:

3.3 i think myabe just close to it

Step-by-step explanation:

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Use the difference of two squares to find the product of 22 and 18.

vladimir2022 [97]

Answer:

396

Step-by-step explanation:

Difference of two squares is breaking down numbers into pieces and using the distributive property to solve. The pieces should be in the form (a-b)(c+d).

Write 22 as (20 + 2) and 18 as (20-2).

(20+2)(20-2) = 400 + 40 - 40 - 4 = 400 - 4 = 396

4 0

3 years ago

Which expressions are equivalent to 76(3 + c)?

dimaraw [331]

Answer:

76c + 228

Step-by-step explanation:

Use the distributive property

76 × 3 = 228

76 × c = 76c

76c + 228

6 0

3 years ago

Read 2 more answers

a circle with a radius of 1 cm sits inside a 3cm x 3cm rectangle. What is the area of the shaded region (the rectangle is shaded

masha68 [24]

Answer:

The area of the shaded region is $5.86\ cm^{2}$

Step-by-step explanation:

we know that

The area of the shaded region is equal to the area of the rectangle minus the area of the circle

The rectangle is a square

$A=b^{2} -\pi r^{2}$

we have

$b=3\ cm$

$r=1\ cm$

assume

$\pi =3.14$

substitute the values

$A=3^{2} -(3.14)(1)^{2}$

$A=5.86\ cm^{2}$

5 0

3 years ago

Read 2 more answers

Which statement best describes the geologic features?

vovangra [49]

Answer:

what are the options

Step-by-step explanation:

geologic features can occur anywhere on earth, these features are formed by the movements of earth's plates.

4 0

3 years ago

Read 2 more answers

Write y=2x^2+12x+14 In vertex form

ratelena [41]

Answer:

$\large\boxed{y=2(x+3)^2-6}$

Step-by-step explanation:

The vertex form of a parabola f(x) = ax² + bx + c:

$y=a(x-h)^2+k$

(h, k) - vertex

$h=\dfrac{-b}{2a}\\\\k=f(h)$

We have the equation:

$y=2x^2+12x+14\\\\a=2,\ b=12,\ c=14\\\\h=\dfrac{-12}{2(2)}=\dfrac{-12}{4}=-3\\\\k=f(-3)=2(-3)^2+12(-3)+12=2(9)-36+12=18-36+12=-6$

Finally:

$y=2(x-(-3))^2+(-6)=2(x+3)^2-6$

7 0

3 years ago