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3 years ago

125 pts! 5-STAR RATING!! THANKS ON QUESTION/PROFILE! FIRST TO ANSWER ALL QUESTIONS RECEIVES BRAINLIEST!

Mathematics

2 answers:

Digiron [165]3 years ago

8 0

1. Y increases by 5 each time to the x value. So y=5x

2. No, y does not vary with x in this table

Glad I could help! ^-^

adelina 88 [10]3 years ago

4 0

1.)C
2.)D
3.)D
4.)C
5.)A
6.)C
7.)D
8.)C
9.)C
10.)B

Hope this helped :)

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Find the length of side x in simplest radical form with a rational denominator.

8090 [49]

Answer:

x=2

Step-by-step explanation:

Since this is a right triangle, we can use trig functions

sin theta = opp/ hyp

sin 30 = x/4

4 sin 30 =x

4 ( 1/2) =x

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3 years ago

Smith is a weld inspector at a shipyard. he knows from keeping track of good and substandard welds that for the afternoon? shift

In-s [12.5K]

The probability of finding a substandard weld is: p = 5% = 0.05 
We are given that the sample size: n = 300
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m = 300 * 0.05 
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s = 3.873

Assuming normal distribution, the z value corresponding to 30 sub standards is:
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z =(30 - 15) / 3.873
z = 15 / 3.873
z = 3.87

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6 0

3 years ago

A doctor’s office records the age at which 200 patients were treated for chicken pox. 60% of the patients were treated before ag

erik [133]

The answer is B. a=48, b=10, c=120, d=13

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3 years ago

Read 2 more answers

Which equation represents a linear function

zepelin [54]

Answer:

Option B) y=-3x+10 is correct

The equation y=-3x+10 represnts a linear function.

Step-by-step explanation:

To verify that which equation represents a linear function:

Given y=-3x+10

Linear functions are functions whose graph is a straight line. A linear function can be written as y=f(x)=a+bx where x is the independent variable and y is the dependent variable.It has only one independent and dependent variables.

It can be written as y=10-3x

Given equation is also in the form of linear function where a=10 and b=-3

Therefore Option B) y=-3x+10 is correct

The equation y=-3x+10 represnts a linear function.

8 0

4 years ago

Write the standard form for a parabola that has the following x intercepts: (-4, 0) and (7, 0).

Alja [10]

Answer:

y = x² - 3x - 28

Step-by-step explanation:

given a parabola with x- intercepts x = a and x = b , then

(x - a) and (x - b) are the corresponding factors and the equation is the product of its factors

y = (x - a)(x - b)

here the x- intercepts are x = - 4 and x = 7 , then the factors are

(x - (- 4)) and (x - 7) , that is (x + 4) and (x - 7) , then

y = (x + 4)(x - 7) ← expand using FOIL , then

y = x² - 3x - 28 ← in standard form

8 0

2 years ago