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3 years ago

What is the product of (x - 9) and (2x - 7)

Mathematics

2 answers:

Crazy boy [7]3 years ago

6 0

2x^2-7x-18x+63

2x^2-25x+63

Vesnalui [34]3 years ago

6 0

Answer:

$2x^2-25x+63$

Step-by-step explanation:

You have to multiply both terms from the first one by both term in the second on, it'll look like this:

$(x-9)*(2x-7)=(x*2x)+(x*-7)+(-9*2x)+(-9*-7)\\(x-9)*(2x-7)=(2x^2)+(-7x)+(-18x)+(63)$

Once you combine like terms it'll be the final answer:

$(x-9)*(2x-7)=2x^2-25x+63$

You can use foiling to get any other questions like this:

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Write a function equation that represents a line that contains the two points (-3, 5) and (2, 10).

Eva8 [605]

Step-by-step explanation:

1. 1st of all calculate the gradient

( - 3, 5) ( 2, 10)

Gradient = (10 - 5) / ( 2--3)

= 1

2. Then find the eq

Y = mx + c

Where m is the gradient

y= 1x + c

Now replace any 2 coordinates from above in the eq.

For ex I'm taking (2, 10)

Y = 1x + c

In the coordinate, x = 2 and y =10

By replacing this in the eq, I will find c

10 = 1(2) + c

2 + c = 10

c = 10 - 2

= 8

So the eq is y = x + 8 ⬅️

4 0

3 years ago

Uhm help please no links -^-

devlian [24]

Answer:

<u>x = 58</u>

Step-by-step explanation:

180 - 148 = 32

32 + 90 + x = 180

122 + x = 180

180 - 122 = x

x = 58

Have a nice day!

6 0

2 years ago

Read 2 more answers

How do you solve algebraically 8x^2=18

vodka [1.7K]

That would be
$x = + \frac{ \sqrt[]{3} }{ \sqrt[]{2} }$
BTW the plus sign is supposed to have this sign underneath it _
Good luck.

5 0

2 years ago

Atevery bus station, busses depart at a rate of 3 every 10 minutes. At this rate, how many buses would you expect to depart in o

Ber [7]

Rate of 3 every 10 minutes.

In 10 minutes there are 3 buses.

In 1 minute it is (3/10). For 1 hour = 60 minutes.

For 60 minutes = 3/10 * 60 = 18.

18 buses.

7 0

2 years ago

n 2018, homes in East Baton Rouge (EBR) Parish sold for an average of $239,000. You take a random sample of homes in Ascension p

Olenka [21]

Answer:

Conclusion

There is no sufficient evidence to conclude that the mean of the home prices from Ascension parish is higher than the EBR mean

Step-by-step explanation:

From the question we are told that

The population mean for EBR is $\mu_ 1 = \$239,000$

The sample mean for Ascension parish is $\= x_2 = \$246,000$

The p-value is $p-value = 0.045$

The level of significance is $\alpha = 0.01$

The null hypothesis is $H_o : \mu_2 = \mu_1$

The alternative hypothesis is $H_a : \mu_2 > \mu_1$

Here $\mu_2$ is the population mean for Ascension parish

From the data given values we see that

$p-value > \alpha$

So we fail to reject the null hypothesis

So we conclude that there is no sufficient evidence to conclude that the mean of the home prices from Ascension parish is higher than the EBR mean

3 0

2 years ago