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3 years ago

Help me out guys!!!!!!!!!!!

Mathematics

1 answer:

Liono4ka [1.6K]3 years ago

3 0

Answer:

When solving absolute value equations, such as [the absolute value of 2x + 5] = 13, it is important to create two equations.

2x + 5 = 13 and 2x + 5 = -13.

Resulting in x = 4 or -9.

.....

d = 4

d = -5

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Richard is frustrated. He knows the line to the right should have a 3 and a 4 in the equation but he can't remember if it is y =

Alisiya [41]

Answer:

The correct equation is "y=4x+3"

Step-by-step explanation:

Given equation:

$y= 4x+3 \ \ or \ \ y=3x+4$

As per the given line formula:

$\to y=mx+c$

The slope(m) of the line is $\frac{4}{1} = 4$ and y-intercept at 3, that is the point (c). So, the correct equation of the line: $y = 4x + 3$

7 0

3 years ago

Can someone break this donw for me?? please

alekssr [168]

Answer:

y = 4x

Step-by-step explanation:

We need to look at where the line's dots are to find the slope. Between each dot the line goes 1 to the right and 4 up. Remember the saying rise over run to know that the slop is 4/1. 4/1 is just 4 so in the equation we put that next to x.

The next part of making an equation is the y-intercept, or where it crosses the y-axis. Since this hits the y-axis at 0 the complete equation will be

y = 4x + 0

but obviously we don't need to add 0 so the answer is

y = 4x

5 0

3 years ago

Read 2 more answers

The difference of Vidya’s height and 15 is 74?

Luba_88 [7]

Answer: V - 15 = 74; V = 89

Step-by-step explanation:

"difference" means subtraction

"is" means equals

Vidya's height minus 15 is 74

V - 15 = 74

To solve, add 15 to both sides: V - 15 + 15 = 74 + 15

V = 89

4 0

3 years ago

Another math equation, Another scratch on the head. Please advise, thanks bud!

fenix001 [56]

Answer:

A = no

B = yes

C = yes

D = yes

Step-by-step explanation:

Hope I could help.

8 0

3 years ago

Question

AlekseyPX

Answer:

The population mean is 5 volts

Step-by-step explanation:

Output voltage is assumed to be normally distributed, with standard deviation 0.25 Volts

s=0.25

n = 8

$H_0:\mu = 5\\H_a:\mu \neq 5$

Sample mean = $\bar{x}=4.85$

Since n < 30 and population standard deviation is unknown

So, we will use t test

Formula : $t = \frac{x-\mu}{\frac{s}{\sqrt{n}}}$

$t = \frac{4.85-5}{\frac{0.25}{\sqrt{8}}}$

t=-1.69

Refer the t table for p value

Degree of freedom = n-1 = 8-1 = 7

So, $t_{(df,\alpha)}=t_{7,0.05}=2.365$

P value >α

So, We are failed to reject null hypothesis

Hence The population mean is 5 volts

7 0

4 years ago