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Triss [41]
3 years ago
7

Bar ModelMath show me 8÷2=4​

Mathematics
1 answer:
gtnhenbr [62]3 years ago
7 0
8/2 = 4

Explanation : reverse it so 4 times 4 = 8
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How to find the distance AB ? A(0,1) B(2,-3)
Anastaziya [24]

Hey there!!

Distance formula :

\sqrt{(y2-y1)^{2} + (x2-x1)^{2}  }

Coordinates given :

( 0,1 ) and ( 2,-3 )

( y2 = -3 ; y1 = 1 ) ( x2 = 2 ; x1 = 0 )

Plugging in the values :

... \sqrt{(-3-1)^{2}+(2-0)^{2} }

... \sqrt{(-4)^{2}+(2)^{2} }

... \sqrt{16+4}

... \sqrt{20}

... \sqrt{5}×\sqrt{4}

... 2\sqrt{5} units is the distance.

Hope my answer helps!!

4 0
3 years ago
Form the intersection for the following sets.
Dafna11 [192]

The intersection of two sets is the set composed by the elements that the two sets have in common.

So, we have

X\cap Y = \{100,\ 1000\}

In this particular case, since Y is a subset of X, we have

X\cap Y=Y

In fact, all elements of Y are elements of X as well, so in particular they are common elements.

7 0
4 years ago
Solve each system of inequalities by graphing. <br><br> x-2y&lt;3<br> 2x+y&gt;8
salantis [7]
Not easy to graph but

multily first equaiton by -2 remember to flip sign
-2x+4y>-6
add to other equaiton

2x-2x+y+4y>-6+8
5y>2
divide by 5
y>2/5

subtitute
2x+2/5>8
subtract 2/5 from both sdies
2x>7 3/5
divid eby 2
x>38/10=19/5=3 4/5

x>3 4/5
y>2/5
just shade the area in that zone, not including point (0,0)
6 0
3 years ago
Triangle ABC
Stolb23 [73]

▪▪▪▪▪▪▪▪▪▪▪▪▪  {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪

Let's solve for value of values of x and y ~

According to Angle sum property of triangles :

\qquad \sf  \dashrightarrow \: 70 \degree + 58\degree + x = 180\degree

\qquad \sf  \dashrightarrow \: x\degree + 128\degree = 180\degree

\qquad \sf  \dashrightarrow \:x =  180\degree - 128\degree

\qquad \sf  \dashrightarrow \: x = 52\degree

Now, solve for y ~

\qquad \sf  \dashrightarrow \: 70\degree + 49\degree + y = 180\degree

\qquad \sf  \dashrightarrow \:  y + 119 = 180\degree

\qquad \sf  \dashrightarrow \:  y =  180  -  119\degree

\qquad \sf  \dashrightarrow \:  y = 61 \degree

Now, by the results we got, we can conclude that :

The two triangles are not similar because 70 + 58 + x = 180 means x = 52° and 70 + 49 + y=180 means y = 61°

8 0
2 years ago
Read 2 more answers
F(x) = -x^2-7x-2<br><br>find f(-9)<br>PLEASE HELP
Anna11 [10]

Answer:

In the pic

Step-by-step explanation:

If you have any questions about the way I solved it, don't hesitate to ask me in the comments below ÷)

8 0
4 years ago
Read 2 more answers
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