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3 years ago

6) 98=4b+ 2c; Find b if c=5

Mathematics

1 answer:

andreev551 [17]3 years ago

8 0

The answer is b= 22 :)

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Dr. George is ready to by a new iphone and has two different carriers he can go with. Cell 4 U can be represented by the functio

Aleks04 [339]

At Cell 4U it would cost $250 with accessories
At Data House it would cost $245 with accessories.
He should buy a phone from Data house because it will be 5 dollars cheaper

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3 years ago

I am so confused. Can anyone help me??

natita [175]

Answer:

bro! im in 7th grade i would try to help but im very stupid sorry for the dissopiontment

Step-by-step explanation:

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3 years ago

Which two values of x are roots of the polynomial below?

Julli [10]

Answer:

B. and C.

Step-by-step explanation:

1. Set the polynomial equal to zero:

x² + 5x + 7 = 0

2. Plug the given values of a, b, and c into the quadratic formula:

$x=\frac{-5+-\sqrt{5^{2}-4(1)(7) } }{2(1)}$

3. Solve the square root:

$x=\frac{-5+-\sqrt{25-4(1)(7)} }{2(1)}$

$x=\frac{-5+-\sqrt{25-28} }{2(1)}$

$x=\frac{-5+-\sqrt{-3} }{2(1)}$

4. Simplify the rest:

$x=\frac{-5+-\sqrt{-3} }{2}$

5. Separate the solutions:

$x=\frac{-5+\sqrt{-3} }{2} , x=\frac{-5-\sqrt{-3} }{2}$

Thus, options B and C are the answers.

hope this helps!

4 0

2 years ago

0.008 is 1 tenth of what decimal

shepuryov [24]

0.08, Hope it helped

3 0

2 years ago

H(x)=-x^2-4 and I(x)=2x+3<br> H(I(s))

ICE Princess25 [194]

Easy peasy
just subsitute I(x) for the x in the h(x) so
h(I(s))=-(2s+3)^2-4
distribute and simplify
h(I(s))=-(4s^2+12s+9)-4
h(I(s))=-4s^2-12s-9-4
h(I(s))=-4s^2-12s-13

3 0

3 years ago