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schepotkina [342]
2 years ago
15

Which expression is equivalent to y^4-400?

Mathematics
1 answer:
timurjin [86]2 years ago
5 0

Answer: (2)

Step-by-step explanation:

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PLZ ANSWER APSP IM IN THE TEST RN!!!
olchik [2.2K]

Answer:

x = 38

y = 25

Step-by-step explanation:

To find x, you do

(2x + 5) = (3x - 33)

Subtract 2x from both sides to isolate x on one side, you get:

5 = (x - 33)

Add 33 to both sides to separate the normal number from the x, you get:

38 = x

From there, you plug x into one of the equations

2(38) + 5

The answer's 81, meaning that angle is 81 degrees. Using supplementary angles, you can find that angle ACD = 99, which you can use to find angle BCE. You'll get this equation:

(4y - 1) = 99

Add one to both sides to get rid of it, you get:

4y = 100

Divide by four, to get the y all alone:

y = 25

I hope this helped!

8 0
3 years ago
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In a survey, 250 out of 1000 people said that they preferred a particular brand of shampoo. What is the result of the survey in
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25% said that they preferred a particular brand of shampoo, the rest is 75 %

8 0
3 years ago
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Given ü=<4,-1 > and =< 3,2 >
Galina-37 [17]

Answer:

idk

Step-by-step explanation:

6 0
3 years ago
ZABD and ZDBC are supplementary angles.
PSYCHO15rus [73]
<h2>Answer:</h2>

<u>By supplementary angle property</u>,

x + 78° = 180°

x = 180° - 78°

x = 102°.

5 0
2 years ago
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1. Based on data collected over several sessions, a statistically minded trainer of office typists modeled the linzoom in
ipn [44]

Answer:

Statement D is correct.

Step-by-step explanation:

Solution:

Data Given:

Linear Regression Relationship = Speed = 10.3 + 5.4 (hour)

Linear Regression Relationship = y = mx + c

Here,

m = slope = 5.4

c = 10.3 = y - intercept

The correct Answer is D)

Because:

As, the residual value is positive, it means the typist attained faster speed than the model predicted. As we know, residuals is the result of difference between predicted values of the model and data values. On the contrary, if residual would be negative then we would say that typist speed is slower than the model predicted.

Hence, Statement D is correct.

6 0
3 years ago
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