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3 years ago

All of the following are equivalent except 7x2 4x+3x (4+3)x 7x

Mathematics

2 answers:

swat323 years ago

6 0

Answer:

7x2

Step-by-step explanation:

7x2 is 14 and all the other ones equal 7

atroni [7]3 years ago

6 0

4x+3x,(4+3)x, and 7x are equivalent except 7x^2

Let's solve:

4x+3x=7x

(4+3)x=7x

Hope it will help u...

 

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AysviL [449]

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2 years ago

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finlep [7]

Answer:

$\boxed{B. \: 5 {x}^{6} + 5 {x}^{5} + 8 {x}^{2} - x + 2}$

Step-by-step explanation:

$= > (2 {x}^{6} + 8 {x}^{2} - x + 1) + (3 {x}^{6} + 5 {x}^{5} + 1) \\ \\ = > 2 {x}^{6} + 8 {x}^{2} - x + 1 + 3 {x}^{6} + 5 {x}^{5} + 1 \\ \\ = > 2 {x}^{6} + 3 {x}^{6} + 5 {x}^{5} + 8 {x}^{2} - x + 1 + 1 \\ \\ = > 5 {x}^{6} + 5 {x}^{5} + 8 {x}^{2} - x + 2$

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3 years ago

Pls help me with this

Free_Kalibri [48]

Answer:

$\boxed{\sf \frac{15}{22} }$

Step-by-step explanation:

The radius of the circle is 7 cm.

The two legs of the triangles are 7cm as well.

Area of a trinagle is ( base × height )/2.

$\frac{7 \times 7}{2} =24.5$

Multiply the value by 2 since there are two triangles.

$24.5 \times 2 = 49$

Calculate the area of the circle.

$\pi r^2$

The radius is given.

$\pi (7)^2$

Take $\pi$ as $\frac{22}{7}$

$49(\frac{22}{7} )$

$=154$

Subtract the area of the two triangles from the area of the whole circle.

$154-49=105$

The area of the shaded part is 105 cm². The total area of the shape is 154cm².

$\frac{105}{154} =\frac{15}{22}$

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3 years ago

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He put 12 stamps in his collection.

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2 years ago

a store had a sale on art supplies. the price p of each item was marked down 60%. which expression represents the new price

andrezito [222]

If the price of the item drops by 60% then that means the new price is 40% of the original

new price = p*0.4

ex:
new price = $100*0.4= $40
new price= $75*0.4 = $30

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2 years ago