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Anna11 [10]
4 years ago
6

Find the value of x if this is a rectangle.​

Mathematics
1 answer:
Bumek [7]4 years ago
4 0

Answer:

x=4

Step-by-step explanation:

we know that

In a rectangle the two diagonals are congruent (same length), and each diagonal bisects the other.

so

In this problem

(2x-1)=(x+3)

solve for x

(2x-x)=(3+1)

x=4

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7200 meters are in 7.2 kilometers
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The ratio of North American butterflies to South American butterflies at a butterfly park is 5:3. The ratio of South American bu
Natalija [7]

Answer: There are 12 European butterflies.

Step-by-step explanation:

Let be "s" the number of South American butterflies at the butterfly park.

Since the ratio of North American butterflies to South American butterflies at a butterfly park is 5:3 and the number of North American butterflies at the butterfly park is 30, you can write the folllowing proportion:

\frac{5}{3}=\frac{30}{s}

Solving for "s", you get:

(s)(\frac{5}{3})=30\\\\s=(30)(\frac{3}{5})\\\\s=18

Let be "e" the number of European butterflies at the butterfly park.

Knowing that the ratio of South American butterflies to European butterflies at the butterfly park is 3:2, and since there are 18 South American butterflies, you can write the following proportion:

\frac{3}{2}=\frac{18}{e}

Solving for "e", you get:

(e)(\frac{3}{2})=18\\\\e=(18)(\frac{2}{3})\\\\e=12

4 0
4 years ago
What's the algebraic expression for n cubed increased by 5??
sertanlavr [38]
N^3+5 is the algebraic expression for it.
7 0
3 years ago
Let r represent the region bound by
krek1111 [17]
Let r represent the region bound by the graphs of y=sin(π x) and y=x³-4x.
5 0
3 years ago
Help me plz im stuck
viva [34]

Answer:

A) Fill the blanks, Fail, 0.15, Success, 244, 0.61

B) 240 times

Step by-step explanation:

A) Void , 96, 0.24

    Fail, 60, it should be 0.15 because 60/400

     Success, 400 - 96- 60 or 244 and the relative frequency is 0.61.

B)    

There is a total of 1000. If the relative frequency is 0.24, multiply 0.24 by 1000 to get the amount of times YOU would expect to be VOID.

Or in other words , 240 times

By proving it add all up

0.24 x 1000 + 0.76 x 1000 = 1000

<h3><u><em>Hope this helps!!!</em></u></h3><h3><u><em>PLEASE GIVE BRAINLIEST!!!</em></u></h3><h3><u><em>APPRECIATE IT!!!</em></u></h3><h3><u><em>AND AS ALWAYS,</em></u></h3><h3><u><em>SIMPLIFY BANANAS              : )</em></u></h3>

7 0
3 years ago
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