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Salsk061 [2.6K]
3 years ago
6

Can you help me?

Mathematics
1 answer:
Semenov [28]3 years ago
8 0

Answer:

0=0

Step-by-step explanation:

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does anyone know how to help me with the letters in math, i dont understand it, and i need help, someone please? if you can can
galina1969 [7]

Answer:

Step-by-step explanation:

Letters are variables and those variable can store a number

Ex: x=5  y=2

evaluate : 3x+2y

we know that x is 5, so we know that 3x would be 15

we know that y is 2, so we know that 2x would be 4

then it says to add 3x and 2y, we would add 15 and 4 to get 19

(This is a very simple example, when you get older, the expression would be much more confusing.

3 0
3 years ago
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How many times does 15 go into 85 evenly?
ANEK [815]

Answer:5 1/3 times

Step-by-step explanation:

5 0
3 years ago
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If Sam drives his car 171 miles in 9 hours, what is his speed​
VikaD [51]
171/9=19mph hope it helps
4 0
3 years ago
PLEASE HELP! Will mark brainliest!
Stells [14]

Answer:

x = 4

Step-by-step explanation:

This is special right triangles  

For the triangle on the bottom, the shorter leg is x, the longer leg is x * √3, and the hypotenuse is x *2. This means that the shorter leg is 2 since you the longer leg is that side multiplied by √3. The hypotenuse is x *2, which is 2 * 2 which equals 4.

Now we have one side of the bigger triangle. This triangle is a 45-45-90 triangle, and the rule is that the two legs are x, and the hypotenuse is x *2. Since we found a leg and not the hypotenuse of the bigger triangle, and the two legs are congruent, that means x is 4.

8 0
3 years ago
an object is launched at 4 ft./s from 88 foot tall platform the objects height H in feet after T seconds is given by the equatio
posledela

Answer:

1.5seconds

Step-by-step explanation:

When the ball hits the ground, the height is equal to zero. So find t when H=0:

H=16t²+8t+80

0=16t²+8t+80

0=2t²+t+10

0=(2t-3)(t+2)

So (2t-3)=0, or (t+2)=0

So t=1.5 or t=-2. Time can't be negative though, so we take our answer as 1.5seconds

8 0
3 years ago
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