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krek1111 [17]
3 years ago
12

Multiply

Mathematics
1 answer:
Mashcka [7]3 years ago
6 0

Answer:

= 6x^{2}−7x−20

Step-by-step explanation:

(2x−5)(3x+4)

= (2x+−5)(3x+4)

= (2x)(3x)+(2x)(4)+(−5)(3x)+(−5)(4)

= 6x^{2} +8x−15x−20

= 6x^{2}−7x−20

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What is the input if the output is 0 ?
Elodia [21]

In other words, what is <em>y</em> if <em>x</em> is 0.

Look on the graph, a line passes through point, A(x,y)\longrightarrow A(0,-3)

So we can conclude that at that very point the input <em>x</em> was 0 and the output <em>y</em> was -3 therefore,

\boxed{f(-3)=0}

Hope this helps.

<u>r3t40</u>

6 0
3 years ago
1. (k+7)² =289<br>2. (2s-1)² =225<br>3. (x-4)² =169<br><br>please help me answer these :)
professor190 [17]
(k+7)^2 =289\\&#10;|k+7|=17\\&#10;k+7=17\vee k+7=-17\\&#10;k=10 \vee k=-24

(2s-1)^2 =225\\&#10;|2s-1|=15\\&#10;2s-1=15\vee 2s-1=-15\\&#10;2s=16 \vee 2s=-14\\&#10;s=8 \vee s=-7

(x-4)^2 =169\\&#10;|x-4|=13\\&#10;x-4=13 \vee x-4=-13\\&#10;x=17 \vee x=-9
6 0
3 years ago
Read 2 more answers
A regular hexagonal prism has a volume of 160 cubic meters. Its base has a perimeter of 30 meters and an area of 64 square meter
valkas [14]
We know that

[volume of a <span>regular hexagonal prism]=[area of the base]*height
height=volume/area of the base
h=160/64-----> 2.5 m

[surface area </span><span>hexagonal prism]=2*[area of the base]+[perimeter of base]*h
</span>[surface area hexagonal prism]=2*[64]+[30]*2.5----> 203 m²

the answer is
203 m²
5 0
3 years ago
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vampirchik [111]

Answer:

42

Step-by-step explanation:

x=3

6+x6+x6

6+(3)6+(3)6

6=6

(3)6=18

(3)6=18

6+18+18

24+18

42

Hope this helps ;) ❤❤❤

8 0
3 years ago
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Change this standard form equation into slope intercept form, then name the slope and the y-intercept.
vodomira [7]
Haha, part of my final today was about this! Don't worry, I got you!
y=2/3x-4

(the 2/3 is supposed to be a fraction)
5 0
3 years ago
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