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3 years ago

PLEASE HELP ASAP I WILL GIVE BRAINLIEST TO FIRST CORRECT ANSWER

Mathematics

2 answers:

Blababa [14]3 years ago

6 0

Answer:

X = 53 degrees

Y = 74 degrees

Z = 53 degrees

Step-by-step explanation:

So if you knew that all angles in triangles add up to 180 degrees. You first want to find Y. 180 - 36 - 70 is equal to 74. So, Angle Y is 74 degrees. Line XYZ is a line that has a 180 degree on there. So 180 - 74 and divide that by 2 to find X and Z. 180 - 74 is 106. 106/2 = 53. Therefore, X and Z are 53 degrees, Y is 74 degrees.

aalyn [17]3 years ago

5 0

Y =74

Step-by-step explanation:

Add the number till u get 180

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Why does it make sense that 4 x (-3) and -3 x 4 have the same product?

Contact [7]

Answer:

hello!!!

We will learn it simple method,we know that multiplication of whole numbers is repeated addition. For example

3*4= 4+4+4

in this same way we can say that

[-12]=(-3)+(-3)+(-3)+(-3)

also,

4(*-3)=(-12)

for the second equation we can take it same as the above one

So it make no diffrence when we multiplied integers as (positive)*(negative) OR (NEGATIVE)*(POSITIVE)

And so now we can say

FOR ANY TWO POSITIVE INTEGER a and b WE CAN SAY

(-a) *(b) = (-b)*(a) = -(a*b)

HOPE FULLY U MAY LIKED MY ANSWER GIVE POSITIVE FEEDBACK AND IF WANTS ANYTHING OTHER YOU MAY ASK ME IN COMMENT

7 0

1 year ago

Rectangles J and K are similar. If the area of rectangle J is 440, what is the area of rectangle K? I need this today

Hunter-Best [27]

Answer:

$Area = 27.5$

Step-by-step explanation:

Given

$J_{Area} = 440$

$J_{Width} = 22$

$K_{Width} = 5.5$

<em>See attachment</em>

Required

Determine the area of K

First, we need to calculate the length of the rectangle J

$J_{Length} * J_{Width} = J_{Area}$

This gives:

$J_{Length} * 22 = 440$

Divide both sides by 22

$\frac{J_{Length} * 22}{22} = \frac{440}{22}$

$J_{Length} = 20$

So, the length of the rectangle J is 20.

Since both shapes are similar, then:

$J_{Length} : J_{Width} = K_{Length} : `K_{Width}$

Substitute the known values:

$20 : 22 = K_{Length} : `5.5$

Express as fraction:

$\frac{20 }{ 22 }= \frac{K_{Length} }{ `5.5}$

Make Length, the subject of formula

$K_{Length} = \frac{5.5 * 20}{22}$

$K_{Length} = \frac{110}{22}$

$K_{Length} = 5$

The area of K is:

$Area = K_{Length} * K_{Width$

$Area = 5.5 * 5$

$Area = 27.5$

4 0

3 years ago

You pay $20 for 4 cups of coffee. What is theunit rate?

7nadin3 [17]

Answer: The unite rate is $5 per cup of coffee.

Step-by-step explanation:

20/4= 5

4 0

3 years ago

Read 2 more answers

HELP ALSO IGNORE THE SKETCH THING I EONT NEED THAT

adell [148]

Answer:

A. 92% bc 100-8= 92 so 216 animals are 92% of the now 233 animals after 8% increase.

B. 100% bc that is the final # of animals.

8 0

3 years ago

Read 2 more answers

PLEASE HELP, WILL GIVE LOTS OF POINTS & BRAINLY<br> solve the 2 questions!

Thepotemich [5.8K]

Answer:

5) we get a=6

6) we get c=8

Step-by-step explanation:

The triangles given are similar.

When the triangles are similar, the ratio of corresponding sides are also similar.

5) If c = 12, find a

We will use the ratio

$\frac{30}{12}=\frac{15}{a}$

Now cross multiply to find value of a

$30*a=12*15\\a=\frac{180}{30}\\a=6\\$

So, we get a=6

6. If b = 6.4, find c

We will use the ratio

$\frac{30}{c}=\frac{24}{6.4}$

Now cross multiply to find value of b

$30*6.4=24*c\\c=\frac{192}{24}\\c=8\\$

So, we get c=8

4 0

3 years ago