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Tresset [83]
3 years ago
12

I have NO idea how to do this to be honest.

Mathematics
2 answers:
kogti [31]3 years ago
7 0
15a^3 

:P............................
vazorg [7]3 years ago
4 0
(-5a)(-3a ²)
= 
15a³

-5 x -3 = 15 ( negative times negative = positive)
a x a² = a³ ( when multiplying exponents, you add the exponents together )
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X=4 for x^2 - 3x - 10<br><br> is the value of x a solution to the given inequality?
olga2289 [7]

Answer: yes

Step-by-step explanation:

There is not answer to your equation so technically anything could be X

4 0
3 years ago
X + 2y = 10<br> 3x + 4y = 8<br><br> Which point is the solution to the system of equations?
bija089 [108]

Answer:

x = -12

y = 11

Step-by-step explanation:

i used substitution and let 'x' = 10 - 2y

3(10 - 2y) + 4y = 8

30 - 6y + 4y = 8

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6 0
3 years ago
I need help with this <br>7f + 2f - 3b + b<br><br>I can't figure it out ​
Leni [432]

Answer:

9f-4b

Step-by-step explanation:

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5 0
3 years ago
An object is launched from a platform. Its height (in meters), xxx seconds after the launch, is modeled by: h(x)=-5x^2+20x+60h(x
EastWind [94]
It takes 6 seconds for it to hit the ground.

0 = -5x²+20x+60

We can solve this by factoring.  First factor out the GCF, -5:

0 = -5(x²-4x-12)

Now we want factors of -12 that sum to -4.  -6(2) = -12 an -6+2 = -4:
0 = -5(x-6)(x+2)

Using the zero product property, we know that either x-6=0 or x+2=0; this gives us the answers x=6 or x=-2.  Since we cannot have negative time, x=6.
3 0
4 years ago
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Determinants and matrix <br><img src="https://tex.z-dn.net/?f=%20%7C%20%5Cfrac%7B7%7D%7B4%7D%20%5C%20%5Cfrac%7B9%7D%7B3%7D%20%20
zavuch27 [327]
<h2>>> Answer </h2>

_________

\ \:

  • \sf{| \frac{7}{4} \frac{9}{3}  |  = a}

\sf \:  |a|  = ad - bc

\sf\:  |a|   = (7 \times 3) - (9 \times 4)

\sf \:  |a|  = 21 - 36

\sf \:  |a|  =  \bold{ \blue{ - 15}}

3 0
3 years ago
Read 2 more answers
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