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3 years ago

Find the values of k that make 2x^2 + kx + 5 factorable.. . A.. 1 or 10. . B.. 2 or 5. . C.. 7 or 11. . D.. 1 or 5

Mathematics

2 answers:

Damm [24]3 years ago

4 0

Test them
1 doesn't work, so cross out A and D
2 doesn't work cross out B
answer is C

andreev551 [17]3 years ago

4 0

The third term of the quadratic equation, also called the constant, is the product of the roots of the equations. Among the choices, only letter D. 1 or 5, will give a product of 5. All the rest of the choices do not satisfy the condition.

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2 years ago

4. The constant of proportionality between the height of the water in a sink (h) in centimeters and the number of minutes it has

RUDIKE [14]

Answer:

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Step-by-step explanation:

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3 years ago

A rectangular balcony has an area of 32 square feet. its perimeter is 24 feet. what are the dimensions of the balcony?

Paul [167]

Answer:

Step-by-step explanation:

8 ft by 4 ft

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3 years ago

2x-7/4 - 1-x/6=17<br> What is the answer?

GalinKa [24]

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3 years ago

Read 2 more answers

There are currently 17 frogs in a (large) pond. The frog population grows exponentially, tripling every 6 days. How long will it

Tema [17]

Answer:

t=11,11 days

Step-by-step explanation:

F=frogs poblation, t=time, be the variables dF/dt = KF, dF/F=Kdt, integrating $\int\limits^ {} \, dF/F =K\int\limits^ {} \, dt$ ⇒ LnF=Kt+c, $F=ce^{Kt}$ ; Knowing t=0, F=17 and t=6 F=51 (tripling every 6 days (17*3)), $F=ce^{K0} = F=c=17; F=17e^{6K} =51$ ⇒ $e^{6K} =51/17; K6=ln\frac{51}{17} ; K=ln\frac{51}{17}/6=0.183$ , so $F=17e^{0,183t}$ , now if F=130, t=? we have:

$130=17e^{0.183t} =e^{0.183t} =130/17; 0.183t=ln(130/17); t=ln(130/17)/0.183 = 11,11$

8 0

3 years ago