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3 years ago

Help me please,Thanks;)

Mathematics

1 answer:

kow [346]3 years ago

6 0

Is letter A hope this help

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The temperature falls 3 degrees Celsius each hour for 8 hours. What is the total change in temperature over this eight-hour peri

VikaD [51]

Answer:

–24°C

Step-by-step explanation:

(–3°C) × 8 = <u>–24°C </u>

8 0

4 years ago

$4.52/ gal to cents/ mL

REY [17]

12 cents per milliliter

7 0

3 years ago

A video game uses the quadratic equation h equals space minus 16 t to the power of 2 space end exponent plus space 64 t space pl

stellarik [79]

Answer:

Step-by-step explanation:

Given

h varies as

$h=-16t^2+64t+190$

Above h represents the height of object at any instant t

For example at t=0

h=190 ft

At t=1 s

h=-16+64+190=238 ft

For maximum height differentiate h w.r.t time

$\frac{\mathrm{d} h}{\mathrm{d} t}=-16\times 2\times t+64$

Put $\frac{\mathrm{d} h}{\mathrm{d} t}=0$ to get maximum height

$-32t+64=0$

t=2 i.e. at t= 2 s h is maximum

h at t=2 s

$h=-16\times 2^2+64\times 2+190=254 m$

7 0

4 years ago

❤️ i need this last question

spayn [35]

Answer: $10\left(\cos90^{\circ}+i\sin90^{\circ}\right)$

Step-by-step explanation:

Given

The complex number is $z_1=0+10i$

Complex number in polar form is given by

$z=r\left(\cos \theta +i\sin \theta\right)$

Compare it with the given complex number

$r=10$ and $\sin \theta=1$ which implies $\theta$ must be $90^{\circ}$

So, in the polar form, it is

$z_1=10\left(\cos90^{\circ}+i\sin90^{\circ}\right)\\z_1=10e^{i\frac{\pi}{2}}$

4 0

3 years ago

What is 5/8 greater than -9/8

Tresset [83]

Answer:

-4/8 i think

Step-by-step explanation:

-9/8 + 5/8 = -4/8

4 0

3 years ago

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