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3 years ago

7

the perimeter of a rectangle is twice the sum of its length and its width. The perimeter is 16 meters and its length is 2 meters

more than twice its its width

2 answers:

Olegator [25]3 years ago

5 0

You'd do 16 times 2 since the length is TWICE as much as 16. So 16x2=32x2=64

Cerrena [4.2K]3 years ago

3 0

The length is 112 because 16*7=112

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fiasKO [112]

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3 years ago

Tricia has 12/15 pound of birdseed. She is filling bags with 1/5 pound of birdseed in each bag. How many bags will Tricia fill?

irina [24]

Answer:

C!!!!

Step-by-step explanation:

(3/15)x=12/15

x = 4

I would take a brainliest, but its your choice

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3 years ago

A map has a scale of 3 cm and 20 cm which statement is true or false two cities are actually 66 cm part are9.9 cm part

victus00 [196]

Answer:
Answer options
A. Two cities that are 7.5 cm apart on the map are actually 50 km apart.
D. Two cities that are actually 66 km apart are 9.9 cm apart on the map.
Step-by-step explanation:
Step 1
Indicate the scale as shown;
3 cm : 20 km, meaning 3 cm on the map represents 20 km on the ground
A). what does 7.5 cm represent on the ground
Distance on ground=(7.5×20)/3=50 km
B). what does 4 cm represent on the ground
Distance on ground=(4×20)/3=26.67 km
C). what does 45 km on ground represent on the map
Distance on map=(45×3)/20=6.75 cm
D). what does 66 km on ground represent on the map
Distance on the map=(66×3)/20=9.9 cm

8 0

3 years ago

An object is launched from a platform. Its height (in meters), xxx seconds after the launch, is modeled by h(x)=-5(x+1)(x-9)h(x)

Zarrin [17]

Answer:

What are the solutions of the equation 9x4 – 2x2 – 7 = 0? Use u substitution to solve

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

Please help me I will really appreciate it!!!

slega [8]

Answer:

<em /> $\displaystyle r=\sqrt[3]{\frac{3V}{4\pi}}$ <em />

<em>The last option matches the correct solution</em>

Step-by-step explanation:

<u>Equation Solving</u>

We have the following equation:

$\displaystyle V=\frac{4}{3}\pi r^3$

And it's required to solve it for r.

Solving this equation needs to perform some operations to have the r isolated from any other variables or constants.

It can be done by conveniently operating on both sides as follows:

Eliminate the denominator by multiplying by 3:

$\displaystyle 3V=4\pi r^3$

Move $4\pi$ to the other side by dividing by $4\pi$ :

$\displaystyle \frac{3V}{4\pi}= r^3$

Swapping sides to have r at the left side:

$\displaystyle r^3=\frac{3V}{4\pi}$

Finally, take the cubic root and leave r alone:

$\displaystyle r=\sqrt[3]{\frac{3V}{4\pi}}$

The last option matches the correct solution

5 0

3 years ago