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Juliette [100K]
3 years ago
15

Please help me I'm stuck on these.. Thanks​

Mathematics
1 answer:
ra1l [238]3 years ago
3 0

Answer:

Step-by-step explanation:

3(n+4)=1/2(6n+4)

We simplify the equation to the form, which is simple to understand

3(n+4)=1/2(6n+4)

Simplifying:

3*(n+4)=0.5*(6n+4)

Reorder the terms in parentheses

+(+3n+12)=0.5*(6n+4)

Remove unnecessary parentheses

+3n+12=0.5+*(+6n+4+)

Reorder the terms in parentheses

+3n+12=+(+3n+2)

Remove unnecessary parentheses

+3n+12=+3n+2

We move all terms containing n to the left and all other terms to the right.

+3n-3n=+2-12

We simplify left and right side of the equation.

n=-10

0=-10

The left and right sides are not equal, therefore there is no solution. This equation is invalid.

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Find the volume of the rectangular prism.<br> 19 cm<br> 9 cm<br> 2 cm
Makovka662 [10]

Answer: 342 cm³

Step-by-step explanation: To find the volume of the rectangular prism, start with the formula for the volume or a prism.

Volume = length × width × height

Since we are not sure what the length, width, or height is in this problem, we can plug any of these numbers in for the length, width, or height. The commutative property of multiplication states that changing the order of the factors does not change the product.

Volume = (19 cm) (9 cm) (2 cm)

Volume = 342 cm³

Therefore, the volume of the rectangular prism is 342 cm³.

5 0
3 years ago
Alex made a sketch for a poster contest. The sketch measures 4 in. × 5 in. The scale factor from the sketch to the finished post
leonid [27]
<span>4*5/2 = 10
5*5/2 = 25/2 = 12/5 

The poster is 10 x 12.5 inches. </span>
3 0
3 years ago
A rectangle has a length of 19 in and a height of 11 in. Another rectangle has a length of 95
scoundrel [369]

Answer:

Option D. No,they are not similar because their side lengths are not proportional.

Step-by-step explanation:

we know that

If two figures are similar, then the ratio of its corresponding sides is proportional and its corresponding angles are congruent

In this problem If the rectangles are similar

then

The ratio of its corresponding lengths must be equal to the ratio of its corresponding heights

<u><em>Verify</em></u>

\frac{95}{19}=\frac{6.5}{11}\\\\95*11=19*6.5\\\\1,045\neq123.5

therefore

The rectangles are not similar because their side lengths are not proportional.

4 0
3 years ago
Hello guys, im stuck in this last question, please tell me this answer, im very sick and this assigment is due in 14 minutes, pl
Bond [772]

Answer:

If the geometric shape is classified as a quadrilateral and all angles are equal then each angle as a right angle measuring at 90 degrees.

Step-by-step explanation:

I hope this helps!

7 0
2 years ago
If a1 = 10 and an = 3an-1 then find the value of a6.
Black_prince [1.1K]

Answer:

a(6)=2430

Step-by-step explanation:

a(1)=10

a(n)=3×a(n-1)

This is a geometric sequence, with ratio=3

a(2)=3×a(1)=3×10

a(3)=3×a(2)=3²×10

a(6)=3⁵×20=(27×9)×10=243×10=2430

7 0
3 years ago
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