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2 years ago

Someone please help me. Ill give Thanks and Brainliest

Mathematics

1 answer:

MrRa [10]2 years ago

8 0

Answer:

B) y = 3x - 5

Step-by-step explanation:

6x - 2y = 10

convert to y = mx + b, slope intercept form

6x - 2y = 10

-6x -6x

-2y = -6x + 10

divide by -2

y = 3x - 5

Hope this helped! Have a nice rest of ur day! Plz mark as brainliest!!!

-Lil G

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What is the equation of this line

photoshop1234 [79]

Answer:

$y = -\frac{4}{3}x + 4$

Step-by-step explanation:

Use the slope-intercept form to write the equation if the line of the graph given.

$y = mx + b$ , where,

b = y-intercept, which is where the line cuts across the y-axis = 4.

m = slope = $\frac{y_2 - y_1}{x_2 - x_1} = \frac{0 - 4}{3 - 0} = \frac{-4}{3}$

Substitute m = ⁴/3 and b = 4, into the slope-intercept formula to get the equation of the line:

$y = mx + b$

$y = -\frac{4}{3}x + 4$

8 0

2 years ago

A home’s value increases at an average rate of 5.5% each year. The current value is $120,000. What function can be used to find

notsponge [240]

So we need to cover 5.5% into a decimal.

0.055 = 5.5%

The house value is 120,000.
So

(1.055x) * (120,000)=

So

f(x)=1.055x * 120,000

7 0

3 years ago

Read 2 more answers

(6,5) what is b y=mx+b

PolarNik [594]

Answer:

b = y-intercept

Step-by-step explanation:

7 0

2 years ago

Mrrafil [7]

Answer:

£510

Step-by-step explanation:

Simple interest = (principal × rate × time) / 100

Principal = £1700

Rate = 10%

Time = 3 years

Simple interest = (principal × rate × time) / 100

= (1700 × 10 × 3) / 100

= 51,000/100

= 510

Simple interest = £510

7 0

3 years ago

The weights of 67 randomly selected axles were found to have a variance of 3.85. Construct the 80% confidence interval for the p

VLD [36.1K]

Answer:

$3.13$

Step-by-step explanation:

We are given the following in the question:

Sample size, n = 67

Variance = 3.85

We have to find 80% confidence interval for the population variance of the weights.

Degree of freedom = 67 - 1 = 66

Level of significance = 0.2

Chi square critical value for lower tail =

$\chi^2_{1-\frac{\alpha}{2}}= 51.770$

Chi square critical value for upper tail =

$\chi^2_{\frac{\alpha}{2}}= 81.085$

80% confidence interval:

$\dfrac{(n-1)S^2}{\chi^2_{\frac{\alpha}{2}}} < \sigma^2 < \dfrac{(n-1)S^2}{\chi^2_{1-\frac{\alpha}{2}}}$

Putting values, we get,

$=\dfrac{(67-1)3.85}{81.085} < \sigma^2 < \dfrac{(67-1)3.85}{51.770}\\\\=3.13$

Thus, (3.13,4.91) is the required 80% confidence interval for the population variance of the weights.

8 0

3 years ago