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3 years ago

6

PLEASE HELP FAST WILL GIVE BRAINLIEST

2 answers:

Fed [463]3 years ago

5 0

Answer:

b

Step-by-step explanation:

Brrunno [24]3 years ago

4 0

Answer:

b

Step-by-step explanation:

i just did it

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the length of a table is 6 feet. on a scale drawing, the length is 2 inches. write three possible scales for the drawing

butalik [34]

2 inches : 6 feet is the same as 1 inch : 3 feet
It could also be written:
1 inch : 36 inches
1 foot : 36 feet

8 0

2 years ago

All real numbers between -10 and 10

Eva8 [605]

Answer:

-9,-8,-7,-6,-5,-4,-3,-2,-1,0,1,2,3,4,5,6,7,8,9 and any decimal number.

Step-by-step explanation:

4 0

3 years ago

matteo is centering a poster on the back of the door that is 32 inches wide the poster is 18 1/2 inches wide how far from the ed

DiKsa [7]

All you have to do is subtract 18.5 from 32 = 13.5 and then divide that number by 2 for each side of the poster, 13.5 / 2 = 6.75 inches

8 0

3 years ago

The sum of the squares of two numbers is 8 . The product of the two numbers is 4 . Find the numbers.

fenix001 [56]

Hello there.

First, assume the numbers $x,~y$ such that they satisties both affirmations:

The sum of the squares of two numbers is $8$ .
The product of the two numbers is $4$ .

With these informations, we can set the following equations:

$\begin{center}\align x^2+y^2=8\\ x\cdot y=4\\\end{center}$

Multiply both sides of the second equation by a factor of $2$ :

$2\cdot x\cdot y = 2\cdot 4\\\\\\ 2xy=8~~~~~(2)^{\ast}$

Make $(1)-(2)^{\ast}$

$x^2+y^2-2xy=8-8\\\\\\ x^2-2xy+y^2=0$

We can rewrite the expression on the left hand side using the binomial expansion in reverse: $(a-b)^2=a^2-2ab+b^2$ , such that:

$(x-y)^2=0$

The square of a number is equal to $0$ if and only if such number is equal to $0$ , thus:

$x-y=0\\\\\\ x=y~~~~~~(3)$

Substituting that information from $(3)$ in $(2)$ , we get:

$x\cdot x = 4\\\\\\ x^2=4$

Calculate the square root on both sides of the equation:

$\sqrt{x^2}=\sqrt{4}\\\\\\ |x|=2\\\\\\ x=\pm~2$

Once again with the information in $(3)$ , we have that:

$y=\pm~2$

The set of solutions of that satisfies both affirmations is:

$S=\{(x,~y)\in\mathbb{R}^2~|~(x,~y)=(-2,\,-2),~(2,~2)\}$

This is the set we were looking for.

7 0

2 years ago

Carlos wants to get an average of 92 percent in his science class. The science teacher has given 5 tests. Carlos's scores on 4 o

LenaWriter [7]

Carlos would have to get 92
Plug in the numbers and add them to what he got on his original test and that would be (92=answer)

5 0

3 years ago