2 years ago

What expression is equivalent to 3(x + 6)?

Mathematics

2 answers:

Bas_tet [7]2 years ago

6 0

Answer:

3x+18

Step-by-step explanation:

Marina86 [1]2 years ago

5 0

3x+18

hope this helps

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It would be 10 the slope is always with the x

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$6.40

Step-by-step explanation:

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The complex solution to a quadratic equation is x equals start fraction three plus or minus square root of negative 36 end squar

Naya [18.7K]

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Joshua is 1.45 meters tall. At 2 p.m., he measures the length of a tree's shadow to be 31.65 meters. He stands 26.2 meters away

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Answer:

The height of the tree=8.42 m

Step-by-step explanation:

We are given that

Height of Joshua, h=1.45 m

Length of tree's shadow, L=31.65 m

Distance between tree and Joshua=26.2 m

We have to find the height of the tree.

BC=26.2 m

BD=31.65m

CD=BD-BC

CD=31.65-26.2=5.45 m

EC=1.45 m

All right triangles are similar .When two triangles are similar then the ratio of their corresponding sides are equal.

$\triangle ABD\sim \triangle ECD$

$\frac{AB}{EC}=\frac{BD}{CD}$

Substitute the values

$\frac{AB}{1.45}=\frac{31.65}{5.45}$

$AB=\frac{31.65\times 1.45}{5.45}$

$AB=8.42m$

Hence, the height of the tree=8.42 m

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2 years ago

suppose the probability you will get an A in this class is .25 and the probability you will get a B is .50. What is the probabil

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75% chance

Step-by-step explanation:

Probability always adds to 1.00

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The grades above a C are A, which is a 25% chance and B, which has a 50% chance. Adding these up we get a 75% chance.

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