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Marysya12 [62]
2 years ago
15

21. Which property is used to simplify the expression 5(3x + 18) to 152 + 90?

Mathematics
1 answer:
chubhunter [2.5K]2 years ago
3 0
You distribute your 5 to 3x and 18 heirij irn is
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Quick i need help so bad :(
Vanyuwa [196]

There are 4 triangles with base of 5 and height of 8.4

Area of triangle = 1/2 x base x height

Area of triangle = 1/2 x 5 x 8.4 = 21 m^2

Multiply by 4 = 21 x 4 = 84 m^2

Area of the base = length x width = 5 x 5 = 25 m^2

Total area = 84 + 25 = 109 m^2

8 0
3 years ago
Please help me!!
ipn [44]

{\color{chartreuse}{Measure\:of\: ∠\:on\: one\: side\:of\:line\:=\:180°}}

∠ Given are (x + 18)° , x° , 4x° and one Angle is 90° as per diagram

Let ,

1st∠ = (x + 18)°

2nd∠ = x°

3rd∠ = 4x°

so ,

⟶\:(x \:+\: 18)°\:+\:x°\:+\: 4x°\:+\:90°\:=\:180°

⟶\:6x°\:+ \:18°\:+\:90°\:=\:180°

⟶\:6x°\:+ \:108°\:=\:180°

⟶\:6x°\:=\:180°\:-\:108°

⟶\:6x\:=\:72°

⟶\:x\:=\:\frac{72}{6} \\

⟶\:x\:=\:12°

substituting x = 12 at the place of x .

= x° + 18°

= 12° + 18 °

1st∠ = 30°

__________________________________

= x°

2nd∠ = 12°

__________________________________

= 4x°

= 4(12)°

3rd∠ = 48°

7 0
3 years ago
Can you guys graph a system of equations and make sure it has two parabolas with the same vertex and a line that crosses the sam
Andrews [41]

Answer:

Sketch the following three graphs:

1) y = (x - 5)²

2) y = -(x - 5)²

3) y = x - 5

First two are parabolas with vertex at (5,0)

Third one is a line which intersects both the parabolas as (5,0)

6 0
3 years ago
Read 2 more answers
Need help really bad, brainliest to who answers,
Paraphin [41]

Answer:

I know (A, (E, and (F

Note:

There might be more.

<em>-kiniwih426</em>

7 0
3 years ago
Find the sum of 4.5 x 10^-1and the quotient of 7x10^-4 and 8x10^-3
eduard

Answer:

4.5=9+8=10 cause we subbed

8+9=17

Step-by-step explanation:

5 0
2 years ago
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