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4 years ago

What is 56 decreased by twice a number

Mathematics

2 answers:

DerKrebs [107]4 years ago

7 0

Algebraic expresion: 56-2x

Mnenie [13.5K]4 years ago

7 0

2x-56. This is the answer because since you don't know what the number is it is gonna be x and twice a number would be 2x. The 56 is subtracted from the 2x because decreased means subtraction.

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19 is 10% of what number

hram777 [196]

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3 years ago

Draw out a two column proof for each problem below. Complete all problems on one page and upload ONE photo of the entire assignm

Hunter-Best [27]

Two or more triangles are congruent if on comparison, they have equal lengths of sides, and measure of angles.

Therefore, the required proofs for each question are shown below:

Problem 1:

Congruent triangles are triangles with equal lengths of corresponding sides and measures of internal angles.

Thus,

STATEMENT REASON

1. <NMQ ≅ <NPQ Any point on a perpendicular bisector

makes equal measure of angle with the

two ends of the line segment.

2. NQ ⊥ MP Definition of a line.

3. MQ ≅ PQ Equal segments of a bisected line.

4. MN ≅ PN Any point on a perpendicular bisector

is at the same distance to the

two ends of the line segment.

5. <MNQ ≅ <PNQ Equal measure of the bisected angle.

Problem 2:

A line segment is the shortest distance between two points.

STATEMENTS REASONS

1. m<PSR ≅ m<PSQ A perpendicular bisector is always at a right

angle to the bisected line segment.

2. m<RPS ≅ m<QPS Equal measure of the bisected angle.

3. RS ≅ QS Property of a bisected line segment.

4. PR ≅ PQ Any point on a perpendicular bisector

is at the same distance to the two ends of

the line segment.

For more clarifications on the perpendicular bisector of a line segment, visit: brainly.com/question/12475568

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2 years ago

To the nearest tenth, what is the distance between the points (1, –2, 5) and (0, 7, –4)?

Eduardwww [97]

Answer:

The distance is $12.8\ units$

Step-by-step explanation:

we know that

The formula to calculate the distance between two points is equal to

$d=\sqrt{(x2-x1)^{2}+(y2-y1)^{2}+(z2-z1)^{2}}$

we have

$A(1,-2,5)\\B(0,7,-4)$

substitute the values

$d=\sqrt{(0-1)^{2}+(7+2)^{2}+(-4-5)^{2}}$

$d=\sqrt{(-1)^{2}+(9)^{2}+(-9)^{2}}$

$d=\sqrt{1+81+81}$

$d=\sqrt{163}\ units$

$d=12.8\ units$

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3 years ago

Light can travel at a speed of 300,000 km/s. Approximately how long will it take light to go from Earth to Mars if the distance

fgiga [73]

ANSWER
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EXPLANATION
The time of travel between Earth and Mars is between 4.3 minutes and 21 minutes, relying on the actual distance between the two planets.

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3 years ago