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3 years ago

5. A cube is a three-dimensional solid with six square faces.

Mathematics

1 answer:

Bond [772]3 years ago

6 0

Conditionallslslslod

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If g(x) = ax2 + 3x – 5, what does a need to be so that...

Arisa [49]

Answer:

Step-by-step explanation:

g(x)=ax²+3x-5

then g(-1)=-15

therefore g(-1) ⇒ a(-1)²+3(-1)-5=-15

a-3-5=-15

a-8=-15

a=-15+8

a=-7

for g(-1)=-15

then g(x)= -7x²+3x-5

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3 years ago

If x5y4z2 <0 , which of the following must be true?

devlian [24]

In order for the whole expression to be negative, either (x⁵)
or (y⁴) or (z²) must be negative.

But an even-numbered power can't be negative ... even if the base
is a negative number, any even-numbered power of it is positive.

So (y⁴) and (z²) are always positive. The expression can be
negative if 'x' is negative, because (x⁵) will then be negative.

None of the proposed requirements is appropriate, so the
final answer is E. None .

4 0

4 years ago

3. If Jeff is walking 2 miles per hour (mph), how far can he travel in 1 hour?

Ipatiy [6.2K]

Jeff can travel 2 miles in one hour

4 0

3 years ago

A. How much carpet does Erin need?

cricket20 [7]

A. she needs 81sq ft

b. 202.5$

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3 years ago

5. Whitney deposits $9,000 for 2 years. She compares two different banks. State

Volgvan

Answer:

a. $ 381.969,

b. $ 369.171,

c. Kings Savings

d. Reliability.

Step-by-step explanation:

∵ Amount formula in compound interest,

$A=P(1+r)^t$

And, amount formula in continuously,

$A=Pe^{rt}$ ,

Where,

P = principal amount,

r = rate per periods,

t = number of periods,

a. In State bank,

P = $ 9000, r = 2.1% = 0.021, t = 2 years,

Also, interest earned compound annually,

Thus, amount,

$A=9000(1+0.021)^2 = 9000(1.021)^2 = \$ 9381.969$

So, interest earned = A - P = 9381.969 - 9000 = $ 381.969,

b. In Kings Savings,

P = $ 9000, r = 2.01% = 0.0201, t = 2 years,

Also, interest earned compound continuously,

Thus, amount,

$A=9000e^{0.0201\times 2} = \$ 9369.171$

So, interest earned = A - P = 9369.171 - 9000 = $ 369.171,

c. ∵ 369.171 > 381.969

Thus, King saving pays higher interest.

d. Since, the other factors might affect Whitney's choice besides interest would be reliability.

5 0

3 years ago