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svp [43]
3 years ago
13

Create a scaled copy of ABCD using a scale factor of 4

Mathematics
1 answer:
Karolina [17]3 years ago
3 0
Just multiply every side by 4
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Its me nagito komaeda
Katyanochek1 [597]

Answer: The answer is 10 :)

Step-by-step explanation: (-8+3) + (-x+5)  distributive property

-8+3=-x+5

-5=-x+5  Subtract 5 to both side

-5  = -5

-10=-x    divide x which is (1) to both side

/-1 =/-1

10=x

7 0
3 years ago
Read 2 more answers
Based on the sample of 500 people, 42% owned cats. Calculate the test statistic. Round to two decimal places.
Tanzania [10]

Answer:

z= 3.63

z for  significance level = 0.05 is ± 1.645

Step-by-step explanation:

Here p = 42% = 0.42

n= 500

We formulate our null and alternative hypotheses as

H0: p= 0.42     against Ha : p> 0.42 One tailed test

From this we can find q which is equal to 1-p= 1-0.42 = 0.58

Taking p`= 0.5

Now using the z  test

z= p`- p/ √p(1-p)/n

Putting the values

z= 0.5- 0.42/ √0.42*0.58/500

z= 0.5- 0.42/ 0.0220

z= 3.63

For one tailed test the value of z for  significance level = 0.05 is ± 1.645

Since the calculated value does not fall in the critical region we reject our null hypothesis  and accept the alternative hypothesis that more than 42%  people owned cats.

4 0
4 years ago
A large university accepts 70% of the students who apply. Of the students the university accepts, 30% actually enroll. If 30,000
Irina-Kira [14]

Answer:

630

Step-by-step explanation:

you need to do a 2 step equation, first finding the amount of students that get accepted, and then use the info you just got solving how many people actually enroll.

formula:

part part %

---------- = -----------

total total %

5 0
4 years ago
Help me fill this out thanks
irga5000 [103]

Answer:

y = 2 \sqrt{6}

Step-by-step explanation:

\frac{y}{ \sin(60) }  =  \frac{4 \sqrt{2} }{ \sin(90) }  \\  \frac{y}{ \frac{1}{2} \sqrt{3}  }  =  \frac{4 \sqrt{2} }{1}  \\ y = 4 \sqrt{2} \times  \frac{1}{2}   \sqrt{3}  \\ y = 2 \sqrt{6}

6 0
3 years ago
Helppppp it’s an emergency!!!!!
Feliz [49]

Answer:

Equation: 2(x+8)+2(3x-5)+23 = 126

x = 12.125m

AB = 20.125m

EF=31.375m

Step-by-step explanation:

The equation of the perimeter of this shape can be written as:2(x+8)+2(3x-5)+23 = 126 (Sides with the same number of dashes are equal in length)

Which becomes:

2x+16+6x-10+23=126

8x+29=126

8x=97

x= 12.125

Since AB = x+8, we can substitute to get the length of AB:

x+8 = 12.125+8

=20.125

We can also use substitution to solve for the length of EF:

3x-5=3(12.125)-5

=31.375

Hope this helps :)

8 0
3 years ago
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