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3 years ago

9

This Venn diagram shows the pizza topping preferences for 9 students.

1 answer:

Agata [3.3K]3 years ago

5 0

Answer:

I think the answer is C.

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Solve the following equation for x: z=x^2+wx

Alja [10]

Minus z both sides
0=x^2+wx+z
we can use quadratic formula or manually complete the square
let's use quadratic

for
0=ax^2+bx+c
$x= \frac{-b+/- \sqrt{b^2-4ac} }{2a}$
given
0=1x^2+wx-z
a=1
b=w
c=-z

$x= \frac{-w+/- \sqrt{w^2-4(1)(-z)} }{2(1)}$
$x= \frac{-w+/- \sqrt{w^2+4z} }{2}$

$x= \frac{-w+ \sqrt{w^2+4z} }{2}$ or $x= \frac{-w- \sqrt{w^2+4z} }{2}$

4 0

3 years ago

What are reasons A,B,and C in the proof?

Vlad [161]

Answer:

Option D is correct.

Explanation:

Commutative Property of Multiplication define that two numbers can be multiplied in any order.

i.e $a\times b =b \times a$

Distributive property of multiplication states that when a number is multiplied by the sum of two numbers i.e, the first number can be distributed to both of those numbers and multiplied by each of them separately.

$a \times (b+c) = a\times b+ a\times c$

Associative property of multiplication states that multiplication allows us to group factors in different ways to get the same product.

Given:

A = $( 4\times 3) + (2 \times 4 )= ( 4\times 3) + (4 \times 2 )$

B = $4 \times ( 3+2)$

C = $4 \times 5$

then;

$( 4\times 3) + (2 \times 4 )$

Using Commutative property of Multiplication we can write $2 \times 4 = 4 \times 2$ then we have;

$( 4\times 3) + (2 \times 4 ) = ( 4\times 3) + (4 \times 2 )$

Using Distributive property of multiplication;

$( 4\times 3) + (4 \times 2 ) = 4 \times ( 3+2)$

by using associative property of multiplication ,

$4 \times (3+2) = 4 \times 5$

Therefore, the reasons for A , B and C in this proof are;

A.commutative property of multiplication

B. distributive property

C. associative property of multiplication

6 0

4 years ago

Are the rational numbers a subset of the set of all real

Scilla [17]

Answer:

yes the rational number is subset for all the real numbers but not the irrational numbers

6 0

3 years ago

Read 2 more answers

What is greater 905 grams or 905 lbs

Annette [7]

905 pounds is greater than grams.

Hope this helps (:

7 0

4 years ago

Read 2 more answers

Find the area of the following<br> parallelogram:<br> 1.5 cm<br> 2.5 cm<br> 2.25 cm<br> A= [?] cm

Serggg [28]

Answer:

given,

base (b) = 2.25cm

height (h) = 1.5 cm

now,

area (a) = b×h

or, a=2.25cm×1.5cm

therefore the area of parallelogram is 3.375cm^2.

<em>hope</em><em> </em><em>it</em><em> </em><em>helps</em><em>.</em><em>.</em>

7 0

3 years ago