2 years ago

Please help: write each equation in exponential form

Mathematics

1 answer:

Setler [38]2 years ago

4 0

Answer:

$4^{4}=256$

Step-by-step explanation:

Rewrite log4256=4 in a different form:

$4^{4}=256$

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Which expression can be used to model the phrase "the sum of three and a number"?

NeX [460]

The sum of three and a number is 3+x

3 0

3 years ago

Daniel dives into a swimming pool. The height of his head is represented by the function h(t) = -8t2 - 28t + 60, where t is the

8_murik_8 [283]

So, h(t) is how far is Daniel's head from the surface of the water, namely the surface itself is when the height is nill, so his head is at the surface and the height of it is just 0, thus h(t) = 0. Namely, what is "t" when h(t) is 0?

$\bf h(t)=-8t^2-28t+60\implies \stackrel{h(t)}{0}=-8t^2-28t+60
\\\\\\
0=-2t^2-7t+15\implies 2t^2+7t-15=0\implies (2t+3)(t-5)=0
\\\\\\
\begin{cases}
2t+3=0\implies 2t=-3\implies &t=-\frac{3}{2}\\\\
t-5=0\implies &\boxed{t=5}
\end{cases}$

clearly the seconds cannot be a negative unit, so is not -3/2.

6 0

2 years ago

Need help!! I’d really appreciate it....

LenaWriter [7]

40. m∠2=148° m∠4=148°

41. ∠2 and ∠5

42. ∠1 and ∠2

43. ∠3 and ∠5

Sorry, I don't know how to do the rest, but I hope this helps!

6 0

3 years ago

Work out 140-3^2×(8+4)+6÷2

kiruha [24]

Answer:

140 - 9 (12) + 3

140 - 108 +3

140 - 111

= 29

4 0

2 years ago

Solve the simultaneous equations: 5x+4y=5 2x+7y=29

OLga [1]

Answer:

x=−3 and y=5

Step-by-step explanation:

3 0

2 years ago