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3 years ago

14

What does 3x^2+8x-10 equal?

2 answers:

blsea [12.9K]3 years ago

5 0

Answer:

0.927

Step-by-step explanation:

just plug it in to a algebraric calculator!

Vikki [24]3 years ago

5 0

The Answer would be:
0.927

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Kinda ned some help how do i solve this problem

Harrizon [31]

So we know that the area of only the pool is 198 ft^2. To find the area of the entire yard, multiply length times width so:

Area of yard = 22 ft x 30 ft
Area of yard = 660 ft^2

Now subtract the pool area from the yard area:

660 - 198 = 462

So the area of only the yard is 462 ft^2

Hope this helps!!

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3 years ago

Hello, help me please)

AlladinOne [14]

Answer:

Given equation:

$10^{5x-2}=2^{8x-3}$

Take natural logs of both sides:

$\implies \ln 10^{5x-2}= \ln 2^{8x-3}$

$\textsf{Apply log Power law}: \quad \ln_ax^n=n\ln_ax$

$\implies (5x-2)\ln 10=(8x-3) \ln 2$

Expand brackets:

$\implies 5x\ln 10 - 2\ln 10=8x \ln 2 -3 \ln 2$

Collect like terms:

$\implies 5x\ln 10 - 8x \ln 2 =2\ln 10-3 \ln 2$

Factor left sides:

$\implies x(5\ln 10 - 8 \ln 2) =2\ln 10-3 \ln 2$

$\textsf{Apply log Power law}: \quad \ln_ax^n=n\ln_ax$

$\implies x(\ln 10^5 - \ln 2^8) =\ln 10^2- \ln 2^3$

$\textsf{Apply log Quotient law}: \quad \ln_a\frac{x}{y}=\ln_ax - \ln_ay$

$\implies x\left(\ln\left(\dfrac{10^5}{2^8}\right)\right) =\ln\left(\dfrac{10^2}{2^3}\right)$

Simplify:

$\implies x\left(\ln\left(\dfrac{3125}{8}\right)\right) =\ln\left(\dfrac{25}{2}\right)$

$\implies x=\dfrac{\ln\left(\dfrac{25}{2}\right)}{\ln\left(\dfrac{3125}{8}\right)}$

$\implies x=0.4232297737...$

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2 years ago

Which of the following can cause market failure?

nalin [4]

Answer: C

Step-by-step explanation: not enough information

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3 years ago

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Brums [2.3K]

Answer:

6(-3+7x)

Step-by-step explanation:

Factor out 6 from each term

- 6*3 + 6*7x

6(-3+7x)

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3 years ago

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