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Lina20 [59]
2 years ago
8

The length of a rectangle is 3 cm more than four times the width (This will be your first equation. The second equation comes fr

om the perimeter formula below). If the perimeter of the rectangle is 56 cm, what are its dimensions?
Mathematics
1 answer:
Paul [167]2 years ago
3 0

Answer:

the width is 5 and the length is 23

Step-by-step explanation:

2x+2(4x+3)=56

10x+6=56

10x=50

x=5

4(5)+3=23

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3. Determine if the following triangle is a right triangle or not using the Pythagorean Theorem Converse. Triangle with side len
stepladder [879]

Answer:

false

Step-by-step explanation:

these measure do not form a right triangle

5 0
2 years ago
how do you work out the volume of a prism the number on the left is 6,the number on the bottom is 3 and the number on the right
zubka84 [21]
1) calculate the volume of the tri prism    2) find area of the base face    3) find the height    4) multiply area of the triangle base time height    5) answer will be in cubic units
8 0
3 years ago
50 POINTS find the length of ab plz help me
Umnica [9.8K]

Answer:

about 9.4 units

Step-by-step explanation:

Distance formula:

√(x1 - x2)² + (y2 - y1)²

Coordinates:

A (4, 2)

B (9, 10)

Let's make 9 = x1

Let's make 4 = x2

Let's make 10 = y1

Let's make 2 = y2

Substitute into the distance formula:

√(x1 - x2)² + (y2 - y1)²

√(9 - 4)² + (2 - 10)²

Solve:

√(9 - 4)² + (2 - 10)²

√(5)² + (-8)²

√25 + 64

√89

≈ 9.4

Therefore, the length of AB is approximately 9.4 units.

7 0
3 years ago
Read 2 more answers
If r=20.5 and s=34.2 find S Round to the nearest tenth
astraxan [27]

Answer: option d

Step-by-step explanation:

Remember the identity:

tan\alpha=\frac{opposite}{adjacent}

The inverse of the tangent function is arctangent. You need to use this to calculate the angle "S":

 \alpha =arctan(\frac{opposite}{adjacent})

Knowing that: you need to find the measure of the angle "S" , r=20.5 (which is the adjacent side) and s=34.2 (which is the opposite side), you can sustitute values into \alpha =arctan(\frac{opposite}{adjacent})

Then, you get that the measure of "S" rounded to the nearest tenth is:

S=arctan(\frac{34.2}{20.5})\\\\S=59.1\°

7 0
3 years ago
Read 2 more answers
How to Simplify the following expression<br> −3x2+5−12x−149x2
laila [671]
Multiply the numbers: 3 x 2=6 = 6x + 5 - 12x - 2 x 149x 
Next Multiply the numbers 149 x 2 = 298

Then, Group like terms, =-6x-12x-298x+5

Add similar elements -6x-12x-298x=-316x,
and you get -316x+5!
3 0
3 years ago
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