All categories

2 years ago

Please help (if you can)

Mathematics

1 answer:

jasenka [17]2 years ago

8 0

Hghgghfngg 1 5 and e

You might be interested in

Which is a rational number a) 1.4142135623 b) 3.6256256 c) 2 (pie) d) squared 5

vfiekz [6]

Answer:

Rational numbers can be expressed as a fraction

Squared 5 = 25

25 can be expressed as a fraction- 25/1, so d is correct.

Let me know if this helps!

8 0

2 years ago

Read 2 more answers

Ali is x years old Ali’s aunt is four times as old as Ali will be in 5 years Find the present age of Ali’s aunt

rosijanka [135]

Answer:

Ali= x + 5

Aunt= 4x

6 0

2 years ago

Please help me if possible

qaws [65]

Answer:

obtuse triangle

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

a spherical balloon is deflated at a rate of 256pi/3 cm^3/sec. at what rate is the radius of the balloon changing when the radiu

Hunter-Best [27]

What you need to look for is $\frac { dr }{ dt }$ when r=8.

Now:

$Volume\quad of\quad a\quad sphere:\\ \\ V=\frac { 4 }{ 3 } \pi { r }^{ 3 }$

$\therefore \quad \frac { dV }{ dr } =\frac { 4 }{ 3 } \pi \cdot 3{ r }^{ 2 }=4\pi { r }^{ 2 }\\ \\ \therefore \quad \frac { dr }{ dV } =\frac { 1 }{ \frac { dV }{ dr } } =\frac { 1 }{ 4\pi { r }^{ 2 } }$

$And:\\ \\ \frac { dV }{ dt } =-\frac { 256\pi }{ 3 } \\ \\ Therefore:\\ \\ \frac { dr }{ dt } =\frac { dr }{ dV } \cdot \frac { dV }{ dt }$

$\\ \\ =\frac { 1 }{ 4\pi { r }^{ 2 } } \cdot -\frac { 256\pi }{ 3 } \\ \\ =-\frac { 256 }{ 12 } \cdot \frac { \pi }{ \pi } \cdot \frac { 1 }{ { r }^{ 2 } }$

$\\ \\ =-\frac { 64 }{ 3{ r }^{ 2 } } \\ \\ When\quad r=8,\\ \\ \frac { dr }{ dt } =-\frac { 64 }{ 3\cdot { 8 }^{ 2 } } =-\frac { 1 }{ 3 } \\ \\ Answer:\quad -\frac { 1 }{ 3 } \quad cm/sec$

3 0

3 years ago

6.2×0.03= and tell me how you did it please

matrenka [14]

Answer:

0.186

Step-by-step explanation:

6.2

x 0.03

6.2

x 0.03 since 6*3=18, we have to carry the 1

6.2

x 0.03

186

6.2

x 0.03

186

6.2

x 0.03

186

6.2

x 0.03

186

6.2

x 0.03

186

+ 00 add the partial products

00

00186

6.2

x 0.03 count how many digits are after the decimal point from each factor =3 and place in product

186

+ 00

00

00.186=0.186

answer=0.186

8 0

3 years ago