All categories

3 years ago

Consider this system of equations. Which shows the first equation written in slope-intercept form? 1/2(2y+10)=7x

Mathematics

2 answers:

AysviL [449]3 years ago

8 0

Answer:y=7x-5

Step-by-step explanation:

notka56 [123]3 years ago

3 0

Answer:

$y=7x - 5$ is in slope intercept form

Step-by-step explanation:

$\frac{1}{2}(2y+10)= 7x$

We need to write the equation in slope intercept form

Slope intercept form of the equation is $y=mx+b$

where m is the slope and b is the y intercept

To get the equation in slope intercept form we need to get y alone

$\frac{1}{2}(2y+10)= 7x$

Multiply 1/2 inside the parenthesis

$y+5 = 7x$

To get y alone , subtract 5 from both sides

$y=7x - 5$ is in slope intercept form

You might be interested in

How do you solve this? 18 " n=21

dalvyx [7]

$18 ^{n} =21$

$log(18) ^{n}=log(21)$

$n*log(18)=log(21)$

$n= \frac{log(21)}{log(18)}$

$n=1.053$

6 0

3 years ago

A toy manufacturer wants to know how many new toys children buy each year. A sample of 1492 children was taken to study their pu

julia-pushkina [17]

By assuming the standard deviation of population 2.2 the confidence interval is 8.67 toys,8.94 toys.

Given sample size of 1492 children,99% confidence interval , sample mean of 8.8, population standard deviation=2.2.

This type of problems can be solved through z test and in z test we have to first find the z score and then p value from normal distribution table.

First we have to find the value of α which can be calculated as under:

α=(1-0.99)/2=0.005

p=1-0.005=0.995

corresponding z value will be 2.575 for p=0.995 .

Margin of error=z*x/d

where x is mean and d is standard deviation.

M=2.575*2.2/ $\sqrt{1492}$

=0.14

So the lower value will be x-M

=8.8-0.14

=8.66

=8.67 ( after rounding)

The upper value will be x+M

=8.8+0.14

=8.94

Hence the confidence interval will be 8.67 toys and 8.94 toys.

Learn more about z test at brainly.com/question/14453510

#SPJ4

8 0

1 year ago

I need help with this graph.

tatuchka [14]

Two parallel lines never intersect, therefore they will never have a solution.

One line could be x=6 and the other could be x=2

Hope this helps :)

3 0

3 years ago

What formula would you use to calculate the mass of fermium-253 remaining after d days? f(d)=400(0.833)d f(d)=400(0.794)d f(d)=4

seraphim [82]

Answer:

f(d)=400(0.794)^d

Step-by-step explanation:

4 0

2 years ago

What is the equation, in slope-intercept form, of the line that is perpendicular to the line y – 4 = –(x – 6) and passes through

Mkey [24]

Let's convert the equation in point-slope form to slope-intercept form.

y - 4 = -(x - 6)
Multiply everything out.
y - 4 = -x + 6
Add 4 to both sides.
y = -x + 10

To be perpendicular, the slope of the new has to be the reciprocal of the other line. To slope in this equation is -1/1. To get the reciprocal, flip the numerator and denominator and change the sign too.

-1/1 becomes 1/-1, and changes to 1/+1, or 1.

y = x + b

Input the coordinate point and solve for b.

-2 = -2 + b
Add 2 to both sides.
0 = b

y = x

4 0

3 years ago