MATHEMATICS MIDDLE SCHOOL

If LMN=XYZ, which congruences are true by CPCTC? Check all that apply

Answers

Answer 1

Answer:

Answer:

A) <Z = <N

C) ML = YX

E) <X = <L

Step-by-step explanation:

ΔLMN ≅ ΔXYZ

<L = <X

<M = <Y

<N = <Z

LM = XY

MN = YZ

LN = XZ

so answers:

A) <Z = <N

C) ML = YX

E) <X = <L

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Help please!Hadar went shopping for supplies for her dog. She spent $14 for dog food, $5 for a collar, and $11 for a leash.

What percent of the amount that Hadar spent on the supplies was the price of the leash? Round to the nearest percent, if necessary.

Answers

add all the prices, and get 30. then divide by 11. the answer is 2.7272727% (27%)

36.667% of 30

for some reason i need 20 characters?

Which is the largest? 76%,4/5, .77

Answers

4/5 is the same as 80% or .80, so it's larger than 76% and .77

Use the squared identities to simplify sin^2x cos^2x

Answers

Answer:

$(1-cos^2(2x))/(4)$

Step-by-step explanation:

We have the following expression

$sin^2x *cos^2x$

Whe know that:

$sin^2(x) = (1-cos(2x))/(2)\n\ncos^2(x)=(1+cos(2x))/(2)$

Now replace these equations in the main expression and simplify

$((1-cos(2x))/(2))*((1+cos(2x))/(2))$

$(((1-cos(2x))(1+cos(2x)))/(4))$

Apply the following property

$(a + b) (a-b) = a ^ 2 -b ^ 2$

Then

$(((1-cos(2x))(1+cos(2x)))/(4))=(1^2-cos^2(2x))/(4)$

Finally:

$(((1-cos(2x))(1+cos(2x)))/(4))=(1-cos^2(2x))/(4)$

Please i need help fast
find the missing term
blank 180 30 5

Answers

I think it might be this sort of sequence :
So 5 times 6 =30
30 times 6=180
So its 180 times 6 which is =
1080
I hope this is right!

5*6=30
30*6=180
180*6=1080

Nata spent $28 on 2 DVDs. At this rate, how much would 5 cost? At what rate did she spend her money

Answers

we know that

Nata spent $\$28$ on $2$ DVDs

so

by proportion

Find the cost of $5$ DVDs

$(28)/(2) (\$)/(DVD) =(x)/(5) (\$)/(DVD)\n \n2*x=28*5\n \nx=28*5/2\n \nx=\$70$

therefore

The answer Part a) is

The cost of $5$ DVDs is $\$70$

Part b) Find the unit rate

we know that

Unit Rate is the ratio of two measurements in which the second term is $1$

so

Find the cost of $1$ DVDs

$(28)/(2) (\$)/(DVD) =(x)/(1) (\$)/(DVD)\n \n2*x=28\n \nx=28/2\n \nx=\$14$

therefore

the unit rate is $14(\$)/(DVD)$

The answer Part b) is

Nata spent her money at the rate $14(\$)/(DVD)$

$14 dollars for each cd and if she buys 5 it's $70

What is a 30% increase followed by a 15% decrease?

Answers

Answer:

In the end, it’s a fifteen percent increase.

Step-by-step explanation:

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