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madreJ [45]
3 years ago
15

If -2/5r=-20, then r=50 true or false

Mathematics
2 answers:
Hunter-Best [27]3 years ago
5 0

Answer:

true

Step-by-step explanation:

Sveta_85 [38]3 years ago
3 0

Answer:

false

Step-by-step explanation:

-2/5*50=-20

-2/250=-20

-1/125=-20

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Constance's car has a 12-gallon gas
antiseptic1488 [7]

Answer:

7.5 hours

Step-by-step explanation:

Constance's car has a 12-gallon gas tank.

She can travel 25 miles on one gallon of gas, so she can travel

25\cdot 12=300 miles using all gas from the tank.

Constance begins with a full tank of gas and drives at a constant rate of 40 miles per hour.

So, Constance can drive for

300 : 40=7.5 hours.

3 0
3 years ago
Does 8m, 15m, 23m form a triangle
sammy [17]

Answer:

No it doesn't form the triangle because when we sum up two sides the. it should exceed the this side.

3 0
3 years ago
Multiply the following<br> (-7pq^2r^3) * (-13p^3q^2r)
artcher [175]

Answer:

91p^{1+3q^{2r}}q^{2r^3}

Step-by-step explanation:

  (-7pq^2r^3) * (-13p^3q^2r)

= 91p^{1+3q^{2r} }*q^{2r^{3} }

= 91p^{1+3q^{2r}}q^{2r^3}

7 0
3 years ago
40 POINTS!!! WILL MAKE BRAINLIEST FOR FIRST ANSWER TO BE CORRECT!
vredina [299]

Answer:

3

Step-by-step explanation:

We want to basically find all the points at which the line y = 3 intersects the given graph of g(x).

y = 3 is simply a straight horizontal line intersecting the y-axis at (0, 3). If we draw this line, we will see that it intersects g(x) at 3 different points. This indicates that there are 3 values of x where g(x) = 3.

Hope this helps!

6 0
3 years ago
Read 2 more answers
Find the area of the shaded region.
olasank [31]
Area of the big triangle (shaded area and small tris for below) is 36 * 51 divided by 2 (area of triangle is base * height over 2). this would give you 918.

area of the small triangle below is 51 * 11 divided by 2 (see above), which is 280.5.

shaded shape area is the big triangle shape minus the small triangle below, which is 918-270.5, which is 637.5 units.
3 0
4 years ago
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