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Greeley [361]
3 years ago
10

I need help please help

Mathematics
2 answers:
sergij07 [2.7K]3 years ago
3 0

Answer:

21u-16v+18w

Step-by-step explanation:

(7u-4v+4w) 14u-12v+14w

21u-16v+18w

Alenkasestr [34]3 years ago
3 0

Answer:

= 21u−16v+18w

Step-by-step explanation:

Let's simplify step-by-step.

7u−4v+4w−2(−7u+6v−7w)

Distribute:

=7u+−4v+4w+(−2)(−7u)+(−2)(6v)+(−2)(−7w)

=7u+−4v+4w+14u+−12v+14w

Combine Like Terms:

=7u+−4v+4w+14u+−12v+14w

=(7u+14u)+(−4v+−12v)+(4w+14w)

=21u+−16v+18w

Answer:

=21u−16v+18w

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If 3/4 of a certain number is equal to 41/2 find the number​
SSSSS [86.1K]

Answer:

x = \frac{82}{3}

Step-by-step explanation:

  • let x be that number

(\frac{3}{4} )x =  \frac{41}{2}

\frac{3x}{4} = \frac{41}{2}

  • multiply both sides by 4

\frac{3x}{4} * 4 = 4 * \frac{41}{2} \\3x = \frac{41 }{2} * 2 * 2\\3x = 41 *2 \\3x = 82 \\

  • divide both sides by 3

\frac{3x}{3} = \frac{82}{3}

x = \frac{82}{3}

7 0
3 years ago
WILL GIVE BRANLIEST HELP PLEASE!
allochka39001 [22]

I believe since you are looking for the angle of M<ABC, you just add both 120 and 25 together, since they practically share a point.

So 120 + 25 = 145

So I guess 145 would be your answer.

I remembered this type of problem from Geometry.

3 0
2 years ago
A horse's resting heart rate is
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<span>The pulse rate of an adult horse at rest averages 30-40 beats per minute.</span>
4 0
3 years ago
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What is the absolute value of -5/8?
Gemiola [76]

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the absolute value of -0.625 is 0.625.

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Ryan, a baker, measured the weights of cakes baked in each batch at his bakery and found that the mean weight of each cake is 50
denpristay [2]

Answer: Rejecting the mean weight of each cake as 500 gram when H subscript 0 equals 500

Step-by-step explanation:

Given that :

Null hypothesis : H0 =500

Alternative hypothesis : Ha < 500

Type 1 Error: Type 1 error simply occurs when we reject the Null hypothesis when the Null is true. Alternatively, type 11 error occurs when we fail to reject a false null hypothesis.

Hence, in the scenario above, a type 1 error will occur when we reject the mean weight as 500 even though the Null hypothesis is True.

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