All categories

3 years ago

Marshall evaluates the expression 15.3 - 7.9 and gets an answer of 7.4.

Mathematics

1 answer:

creativ13 [48]3 years ago

7 0

Answer:

yes

Step-by-step explanation:

15.3-7.9=7.4

You might be interested in

Tori ran 4/5 Mile in 1/5 hour. write an equation for the distance in miles Y that she ran in X hours if she ran at a constant ra

nirvana33 [79]

Answer:

$y=4x$

Step-by-step explanation:

Let

y ----> the distance in miles

x ----> the time in hours

using proportion

$\frac{y}{x}=\frac{(4/5)}{(1/5)}$

Simplify

$\frac{y}{x}=\frac{4}{1}$

$y=4x$

This is a linear direct variation

The unit rate or speed is the slope of the linear equation

The unit rate is 4 miles/hour

6 0

3 years ago

Evaluate ∫3x2sin(x3)cos(x3)dx by

liraira [26]

Answer:

Evaluate ∫3x2sin(x3)cos(x3)dx

Step-by-step explanation:

hello (a) using the substitution u=sin(x3) because

du =3x²(cos x3)dx

you have ∫3x2sin(x3)cos(x3)dx = ∫udu=u²/2 +c............continu

6 0

2 years ago

Arianna is preheating her oven before using it to bake. Arianna created the following

fredd [130]

Answer:

The change in degrees Fahrenheit for every change of one minute.

Step-by-step explanation:

7 0

3 years ago

A sphere rolls up an inclined plane of inclination angle 30 degree. At the bottom of the incline the center of mass of the spher

Zigmanuir [339]

Answer: The sphere is 0.002548 cm travel up the plane.

Step-by-step explanation:

Since we have given that

Inclination angle = 30°

Translational speed = 0.25 m/s

As we know that

$KE=0.5\times lw^2=PE$

and

Length of solid sphere is given by

$l=\dfrac{2Mr^2}{5}$

So, it becomes,

$KE=0.5\times \dfrac{2Mr^2}{5}w^2=Mgd\sin \theta$

And $0.25\ m/sv=rw$

So, it becomes,

$1\times (0.25)^2=5\times d\times 9.81\times \sin 30^\circ\\\\0.0625=49.05d\times \dfrac{1}{2}\\\\\dfrac{0.125}{49.05}=d\\\\d=0.002548$

Hence, the sphere is 0.002548 cm travel up the plane.

5 0

3 years ago

What is the Square root of -3

zavuch27 [327]

The square root of -3 is 1.73205081

3 0

3 years ago