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tigry1 [53]
2 years ago
15

Express as a trinomial. (3x – 7)(3x + 10)

Mathematics
1 answer:
stiks02 [169]2 years ago
3 0

Answer:

9x^2 + 9x -70

Step-by-step explanation:

Use the distributive property to solve

(3x-7) (3x+10)

multiply 3x x 3x = 9x^2

multiply 3x(-7) and 3x(10)

add -21x + 30x = 9x

multiply -7 x 10 = -70

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What is the equation of the linear function written in slope-intercept form?
-Dominant- [34]

Answer:

<h2>f(x) = -3x - 1</h2>

Step-by-step explanation:

The slope-intercept form of an equation of a line:

f(x)=mx+b

<em>m</em><em> - slope</em>

<em>b</em><em> - y-intercept, (0, b)</em>

The formula of a slope:

m=\dfrac{y_2-y_1}{x_2-x_1}

From the graph we have two points <em>A(-1, 2)</em> and <em>B(0, -1) → b = -1</em>.

Calculate the slope:

m=\dfrac{-1-2}{0-(-1)}=\dfrac{-3}{1}=-3

Finally:

f(x)=-3x-1

3 0
3 years ago
in spencers garden the number of rose bushes is 7 less than 1.5 times the number of carnation bushes. If the number of carnation
Step2247 [10]
<span>1.5 times the number of carnation bushes. 
If the number of carnation bushes is c.
R = 1.5c - 7
Hope this helps:-)</span>
7 0
3 years ago
Plug in the point to determine if it is on the circle<br> (x – 3)² + y2 = 4<br> (5,0)
Butoxors [25]

Answer:

yes

Step-by-step explanation:

(5_3)^2+2(0)=4

substitute with the 5 to x and 0 to y

8 0
3 years ago
Factorize the following expression ab-a-b+1
dolphi86 [110]

Group 'em together

a b − a + 1 − b

a b − a = a ( b − 1 )

Notice that there will be a 1 as without it it'll simply be  ab

1 − b = 1 ( 1 − b )

Notice that it doesn't match with the upper one... so we'll change the signs

1 ( 1 − b ) = − 1 ( b− 1 )

(try to multiply them now!!

Jot them down in one expression

a ( b − 1 ) − 1 ( b − 1 )

You get!!!!!!

( a − 1 ) ( b − 1 )

5 0
3 years ago
Least to greatest -14,10,12,-6,-8,-9,13
tatyana61 [14]

Answer: -14, -9, -8, -6, 10, 12, 13

Step-by-step explanation: Think of all the numbers money. The negative ones mean that you owe people money so the bigger the negative number is the more you owe people which is the less money you have.

6 0
3 years ago
Read 2 more answers
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