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Vanyuwa [196]
3 years ago
15

Solve −2x2 − 16x − 44 = 0.

Mathematics
1 answer:
Ksivusya [100]3 years ago
4 0

Answer:

x=-3

Step-by-step explanation:

-2x2=-4

-4-16x-44=0

combine like terms (-4,-16)

-48-16x=0

move the 16x to the other side of the equal sign (add 16 since its -)

-48=16x

you need x alone so you need to divide by 16

-3=x

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15 points!
Elena L [17]
So this is a bit confusing. I don't know if you need me to solve them then simplify or just reduce them but I will try to write it anyways.

1. (4^{3} )^5
For this, you can just multiply 3 by 5 which is 15 then place it as an exponent as 4^{15}

But if you need to solve it, you multiply 4 by itself 15 times which is107,3741,824 but I don't think thats what you are looking for but here it is anyways

I assume that it was the former that was the answer

Answer: 4^{15}

2. 4^{-2}

When dealing with negative exponents, you get one and divide by the base according to the exponent. It says -2⇒2 which means you divide 1 by 4, twice

1÷4÷4=.0625

Answer: .0625

3. 4^3

Since its positive, you multiply by the base number (rather than divide if it was negative)

So it is 4×4×4=64

Answer: 64

4. 4^8

Here, you just take what I did in step 3 and multiply by the base number according to the exponent

4×4×4×4×4×4×4×4=65,536

Answer: 65, 536

5. 4^{15}

You do what you did in the previous steps but multiply the base 15 times


4×4×4×4×4×4×4×4×4×4×4×4×4×4×4=1,073,741,824

Answer: 1,073,741,824


If you don't know what to do, go and ask your teacher because he/she would know best on what to do :-) 


7 0
2 years ago
Is the square root of 12 irrational rational
olya-2409 [2.1K]

Answer:

Irrational

Step-by-step explanation:

3 0
2 years ago
rectangular stained glass window is 2 feet by 4 feet. A clear glass border is constructed around the stained glass window. The w
Mice21 [21]
S=2(4x+2x)+4x^2=4x^2+12x

4x^2+12x=7
4x^2+12x-7=0
D=12^2-4x4x(-7)=256
X1=(-12-16)/(2x4)=-3.5 impossible
X2=(-12+16)/(2x4)=0.5

A
7 0
3 years ago
The length of the shorter side of a parallelogram is 29 cm. Perpendicular line segment, which goes through the point of intersec
Katena32 [7]
A = 900cm^{2}

The area of a parallelogram can be found by taking its base (b) and multiplying by the height (h). The base has the measure of 33 +12 = 45 cm. Now, you just need to find the height of the parallelogram. The height can be found by using the pythagorean theorem (a^{2} +  b^{2} =  c^{2}. 

So, when simplified the height of the parallelogram will be found from \sqrt{ 29^{2} -  21^{2}}

The height is 20 cm. The base is 45 cm. 45 x 20 = 900. 
6 0
3 years ago
. 25% of 900 = 225, 25% is called____ *
posledela

Answer:

25% is called a quarter of 900

Step-by-step explanation:

{ \tt{25\% =  \frac{25}{100}  =  \frac{1}{4} }} \\

4 0
2 years ago
Read 2 more answers
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