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Annette [7]
3 years ago
13

Use the quadratic formula to solve x² + 9x + 10 = 0.

Mathematics
1 answer:
tekilochka [14]3 years ago
7 0

Answer:

The quadratic formula: (-b+-sqrtb^2-4ac)/2a

Plugging in the values of a=1, b=9, and c=10, the roots of the equation are: -7.7 and -1.3.

So, the first option is correct.

Let me know if this helps!

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Let’s look at another one of Homer’s rocket launches. It was launched from ground level with an initial velocity of 208 feet per
kozerog [31]

Answer:

Smax = 676 ft

the maximum altitude (height) the rocket will attain during its flight is 676 ft

Step-by-step explanation:

Given;

The height function S(t) of the rocket as;

S(t) = -16t2 + 208t

The maximum altitude Smax, will occur at dS/dt = 0

differentiating S(t);

dS/dt = -32t + 208 = 0

-32t +208 = 0

32t = 208

t = 208/32

t = 6.5 seconds.

The maximum altitude Smax is;

Substituting t = 6.5 s

Smax = -16(6.5)^2 + 208(6.5)

Smax = 676 ft

the maximum altitude (height) the rocket will attain during its flight is 676 ft

8 0
3 years ago
How would I do this
Solnce55 [7]

Answer:

  the ramp must be lowered

Step-by-step explanation:

Use the definition of the sine function to find the height of a ramp that is 8°.

  Sine = Opposite/Hypotenuse

  sin(8°) = height/8

  height = 8×sin(8°) = 1.11

The height Nate's dad allows is 1.11 feet. At 1.5 feet, the ramp is too high.

The ramp must be lowered.

4 0
3 years ago
You made some snacks for a party. You have 24 cheese snacks, 18 yogurt snacks, and 32 vegetable snacks. Total number of snacks.
Papessa [141]
The answer is 74 snacks.
24+32 =56
56+18=74
3 0
4 years ago
Read 2 more answers
What is the greatest commen factor of 30 and 54
seropon [69]
54. 30
^ ^
27 2. 10 3
^ ^
9 3. 5 2
^
3 3
They only have 3 and two in common when you fully factor them. 3×2= 6
6 is the greatest common factor.
3 0
3 years ago
Read 2 more answers
Find all rational zeros and factor f(x) for<br> x^3 + 2x^2 -45x -126
alexdok [17]
The rational root are x= 7,-3,-6
You can find them by substituting y for 0
6 0
4 years ago
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