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kolbaska11 [484]
2 years ago
12

[PICTURE ATTACHED] sigh, another variability one. if u get it correct, i’ll make you brainliest! :’)

Mathematics
2 answers:
Dominik [7]2 years ago
7 0

Answer: B

Step-by-step explanation:

shtirl [24]2 years ago
3 0

Option B

How many books have each of my classmates read this year?

Step-by-step explanation:

Every year the number of books each classmate read would be different

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Colt1911 [192]

Answer:

D.

Step-by-step explanation:

2y = (2 x y) = 2 x 0 = 0

<em>0 - 0 = 0</em>

4 0
2 years ago
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What is the simplified expression for 3 y squared minus 6 y z minus 7 + 4 y squared minus 4 y z + 2 minus y squared z? y squared
tresset_1 [31]

Answer:

7y^2 - y^2z - 10yz-5

C. 7 y squared minus y squared z minus 10 y z minus 5

Step-by-step explanation:

A. y squared minus y squared z minus 10 y z minus 5

B. y squared minus y squared z minus 5 y z minus 5

C. 7 y squared minus y squared z minus 10 y z minus 5

D. 7 y squared minus y squared z minus 2 y z minus 5

Given:

3y^2 - 6yz - 7 + 4y^2 - 4yz + 2 - y^2z

Collect like terms in the expression

3y^2 + 4y^2 - 6yz - 4yz - y^2z - 7 + 2

Simplify

7y^2 - 10yz - y^2z - 5

Rewritten as

7y^2 - y^2z - 10yz-5

Option C. 7 y squared minus y squared z minus 10 y z minus 5

Is the answer

4 0
3 years ago
Help helppp help i need answerr thank Uuuuuuuuu​
Galina-37 [17]

Answer:

see explanation

Step-by-step explanation:

(a)

The angles are vertical and congruent, that is

x - 10 = 125 ( add 10 to both sides )

x = 135

-------------------------------------------------

(b)

Supplementary angles sum to 180°

The angles are in the ratio 2 : 3 = 2x : 3x ( x is a multiplier ), then

2x + 3x = 180

5x = 180 ( divide both sides by 5 )

x = 36

thus

2x = 2 × 36 = 72

3x = 3 × 36 = 108

Then the 2 angles are 72° and 108°

3 0
2 years ago
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A satellite dish is the shape of a paraboloid. The dish is 38 inches wide, and 10 inches deep. How many inches should the receiv
vitfil [10]

Answer:

9 in approx

Step-by-step explanation:

Step one:

given data

the shape of the satellite dish takes the form of a paraboloid.

the diameter of the dish is 38in wide

and 10 inches deep.

step two:

The expression for the paraboloid is

4ay=x^2

where y is the vertical axis of the  paraboloid

a is vertex to focus.

and x is the radius of the dish

x= 38/2= 19in

substituting we have

4a10 =19^2\\\\40a=361 \\\\

divide both sides by 40

a=361/40\\\\a=9.025

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4 0
3 years ago
Which number sentence is true?<br><br>​
skelet666 [1.2K]

Answer:

B) √58 > 6.85

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so √58 is between 7 and 8 ---> 7 < √58 < 8

so √58 > 6.85 is true

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3 years ago
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