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allsm [11]
3 years ago
13

Simplify the expression 4(x+y) + 3y

Mathematics
1 answer:
Anuta_ua [19.1K]3 years ago
6 0

Answer:

4x + 7y

Step-by-step explanation:

4(x+y) + 3y

Distribute

4x+ 4y+ 3y

add like terms

4x + 7y

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1. Do you the following side lengths form a right triangle?2. Which measurement is closest to the value of X in centimeters?
koban [17]

Answer:

Part 1:

Yes, the side lengths form a right triangle.

Part 2:

Option d 37.1 cm

Explanation:

We need to use the pythagorean theorem.

In part 1, if the 3 side lengths are a right triangle, then, they must verify:

7.5^2=4.5^2+6^2

By the theorem. Then:

\begin{gathered} 7.5^2=56.25 \\ 4.5^2+6^2=20.25+36=56.25 \end{gathered}

They're equal, then the lengths correspond to a right triangle.

For part 2, we need to use again the theorem. In this case:

\begin{gathered} 12^2+x^2=39^2 \\ x=\sqrt{1521-144} \\ x=\sqrt{1377} \\ x\approx37.1cm \end{gathered}

6 0
1 year ago
Monica bought 14.75 yards of muslin
nikdorinn [45]

Answer: 531 inches

Step-by-step explanation:

3 0
2 years ago
I WILL GIVE YOU BRAINLIST IF YOU ARE CORRECT! THIS IS FOR 30 POINTS!
Maksim231197 [3]

Answer:If she buys 60 tiles, the cost at both shops is the same.

If she buys less than 60 tiles, then the second shop is cheaper.

If she buys more than 60 tiles, then the first shop is cheaper.

Step-by-step explanation:

Explanation:

Let the number of tiles be

x

At the first shop: Cost =

$

0.79

×

x

+

$

24

=

0.79

x

+

24

At the second shop: Cost =

$

1.19

×

x

=

1.19

x

If the cost is the same:

1.19

x

=

0.79

x

+

24

   

←

solve for x

1.19

x

−

0.79

x

=

24

0.4

x

=

24

x

=

24

0.4

x

=

60

tiles

If she buys less than 60 tiles, then the second shop is cheaper.

If she buys more than 60 tiles, then the first shop is cheaper.

8 0
3 years ago
A police officer investigating an accident finds a skid mark of 115 ft in length. How fast was the car going when the driver app
Dominik [7]
The question doesn't provide enough information to get an accurate answer. Please provide more information or provide acceptable assumptions.
5 0
3 years ago
Look at this picture and help me out please
Rainbow [258]

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