2 years ago

What is the value of x in the triangle?

Mathematics

1 answer:

elixir [45]2 years ago

7 0

Answer:

180 degrees, because the sum of all the angles of a triangle always equals 180 degress.

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Alexis bought a pyramid-like paperweight for her teacher. The paperweight has a volume of 200 cm3 and a density of 1.5 grams per

Nikolay [14]

Answer:

The density is equal to the weight divided by the volume:

$\rho=\dfrac{W}{V}$

The paperweight weights 300 grams.

Step-by-step explanation:

The density of the paperweight can be calculated knowing the weight and the volume of this paperweight.

The density is equal to the weight divided by the volume:

$\rho=\dfrac{W}{V}$

We know that the density of this paperweight is 1.5 grams per cm3, and its volume is 200 cm3.

We can use the formula of the density to calculate the weight:

$\rho=\dfrac{W}{V}\\\\\\W=\rho\cdot V=1.5\;\dfrac{g}{cm^3}\,\cdot\;200\; cm^3\\\\\\W=300\;g$

The paperweight weights 300 grams.

7 0

3 years ago

Factor the expression.<br> 2x + 8

IgorC [24]

Answer:

2x+8

2 is common

2(x+4)=0

Step-by-step explanation:

5 0

2 years ago

What is the solution to the system of equations <br><br> 3x+2y=39<br> 5x-y=13

Marta_Voda [28]

3x + 2y = 39

5x - y = 13

Multiplying the last by two:

10x - 2y = 26

Adding to the first

13x = 65

x = 5

y = 5x-13 =25-13=12

Check:

3(5)+2(12)=39 good

5(5)-12=13 good

Answer: x=5, y=12

8 0

3 years ago

Maths revision 6 can someone help

Inga [223]

20) 13=2f+5

2f=8

f=4

6x<=3

x<=1/2

-f-5(2f-3)=-f-10f+15=-11f+15

answer B

45+0,15*45=45+6,75=51,75$

6 0

3 years ago

Mr. Whittaker’s science class uses tide gauges to measure annual variations in water levels at different parts of a river, and t

strojnjashka [21]

Answer:

-1.05 mm/year

2.48 years

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers