3 years ago

What is 9 time 9? Please help.

Mathematics

2 answers:

Mandarinka [93]3 years ago

7 0

9 times 9 gives you 81

bazaltina [42]3 years ago

5 0

The answer is 81 because multiplication is just adding numbers. Just add 9+9 nine times.

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Tomb trees are standing side-by-side in the sunlight one is 50 feet tall and the other is 20 feet tall if the taller tree cast a

8090 [49]

Answer: Length of shorter tree = 7.2 feet .

Step-by-step explanation:

Given : Height of two trees as 50 feet and 20 feet.

At same time the angle made by sun rays would be same for both trees.

Both trees are vertical to the ground making right angle so triangles made by both triangles must be similar.

Corresponding sides of similar triangles are proportional.

So $\dfrac{\text{length of the shadow of the shorter tree}}{\text{height of shorter tree}}=\dfrac{\text{length of the shadow of the bigger tree}}{\text{height of bigger tree}}\\\\=\dfrac{\text{length of the shadow of the shorter tree}}{20}=\dfrac{18}{50}\\\\\Rightarrow\ \text{length of the shadow of the shorter tree}=\dfrac{18}{50}\times20\\\\\Rightarrow\ \text{length of the shadow of the shorter tree} = 7.2$

So, Length of shorter tree = 7.2 feet .

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3 years ago

If g(x)= 3x+1, evaluate g(-2)

seropon [69]

Hey there!

G(x) = 3x + 1

G(-2)

They just ask you to insert the value of -2 instead of x

= (-2)(3) + 1

G(-2)= -5

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3 years ago

A 7-by-7 foot rug is shown.

avanturin [10]

Answer:

A Between 0-1/2

Step-by-step explanation:

Because you don't know if the rug is solid white or a checkard rug. But I could be wrong with insufficient evidence of the rug

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2 years ago

The perimeter of the triangle shown on the right is 257 feet.

Alexeev081 [22]

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2 years ago

Alex has 3,330 toothpicks . He wants to use them all to make a floor mat with 18 equal rows . How many toothpicks should Alex us

Rudik [331]

Answer:

Step-by-step explanation:

for this problem we have to

3330/18=185 toothpicks for each row

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3 years ago

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