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tamaranim1 [39]
3 years ago
6

Answer the following questions:

Mathematics
2 answers:
AlekseyPX3 years ago
8 0
A. The slope intercept form of a line is generally expressed as, y = mx + b. Not all the lines may be expressed this way because some lines do not have y-intercept.
B. Not all lines have two distinct intercepts because vertical and horizontal lines only has one intercepts each.
C. No. Each line will have 1 or more intercepts. 
Gemiola [76]3 years ago
5 0

Answer:

(a) No, every equation of line can't be written in slope Intercept form which can be explained in the following way.

→y=m x +c, where m is slope of line and c is y intercept.

Suppose a line is , ax +by+c=0

   by=-ax -c

 y=\frac{-ax}{b}-\frac{c}{b}

if, c=0, then line will be not in slope intercept form.

(b) NO,

Every line has two intercepts , one is called X intercept and another one is Y intercept.

Equation of line in Intercept form

    ax +by+c=0

   by+ax =-c

 \frac{x}{\frac{-c}{a}}+\frac{y}{\frac{-c}{b}}=1

But if,c=0,equation of line can't be written in intercept form.

(c)

Yes, all lines which passes through Origin have no intercepts that is X intercept and Y intercept.

Equation of these lines are

y= mx, where m is slope of the line.

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Given ABCD, find the measure of m
Elza [17]
(10x+20)+(32+6x)=180
52+16x=180
16x=128
x=8
A=100 degrees
4 0
3 years ago
in a given year, the rate of flu infection for the general public was 8.3%. And sample of 200 people who receive the flu vaccine
makkiz [27]

Answer:

\fbox{\begin{minipage}{10em}Option A is correct\end{minipage}}

Step-by-step explanation:

<em>Step 1: Define significance level</em>

In this hypothesis testing problem, significance levels α is selected: 0.05, the associated z-value from Laplace table:

Φ(z) = α - 0.5 = 0.05 - 0.5 = -0.45

=> z = -1.645

<em>Step 2: Define null hypothesis (</em>H_{0}<em>) and alternative hypothesis (</em>H_{1}<em>)</em>

H_{0} : rate of flu infection p = 8.3% or 8.3/100 = 0.083

H_{1} : rate of flu infection p < 8.3% or 8.3/100 = 0.083

<em>Step 3: Apply the formula to check test statistic:</em>

K = \frac{f - p}{\sqrt{p(1 - p)} } * \sqrt{n}

with f is actual sampling percent, p is rate of flu infection of H_{0}, n is number of samples.

The null hypothesis will be rejected if K < z

<em>Step 4: Calculate the value of K and compare with </em>z

K = \frac{(\frac{3.5}{100})  - 0.083}{\sqrt{0.083(1 - 0.083)} } * \sqrt{200} = -2.46  

We have -2.46 < -1.645

=>This is good evidence to reject null hypothesis.

=> The actual rate is lower. (As H_{1} states)

Hope this helps!

:)

5 0
3 years ago
PLEASE HELP ME ITS TIMED!!
Arturiano [62]

Answer:

x=10

Step-by-step explanation:

x^2 + 24^2 = 26^2

x^2 + 576 = 676

x^2 = 100

√x^2 = √100

x=10

8 0
3 years ago
Read 2 more answers
The blueprint for a fence shows a rectangle with the dimensions bin x
OleMash [197]

Answer:

The width of the actual fence is 90ft

Step-by-step explanation:

If 2in = 10ft, you want to find the scale factor. To do this, you need to divide 10/2, so for every 5ft, it is 1in. Now, you would take how many inches you have and multiply it by 5. (in our case, 18in)

18 x 5 = 90.

So the actual fence length is 90ft.

5 0
3 years ago
I NEED SOMEONE TO ANSWER A SCALE FACTOR PROBLEM AND WILL AWARD BRAINLIEST
Mrac [35]
Use a ratio to answer this:
24/10 
Simplified, this is 12/5, also 240%. 
Hope this helps!
4 0
3 years ago
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