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maks197457 [2]
2 years ago
7

Simplify 4a - 2a + a

Mathematics
2 answers:
natali 33 [55]2 years ago
6 0

Answer:

=> 3a

Step-by-step explanation:

=> 4a - 2a + a

=> 2a + a

=> 3a

mr Goodwill [35]2 years ago
6 0

Answer:

\boxed{\bf 3a}

Step-by-step explanation:

\bf 4a - 2a + a

Combine 4a and -2a = 2a.

  • \bf 2a+a

Combine 2a and a = 3a

  • \bf 3a

<u>---------------------------------------</u>

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Write a positive or negative integer that represents the situation: The temperature rises 17 degrees
Iteru [2.4K]
+17 I hope this helps
8 0
3 years ago
I need the answer please
Anarel [89]

Answer:

22 degrees

Step-by-step explanation:

Since both triangles correspond, side x is correspondent to 22 degrees, Since that is also the only given piece of information, that is your answer.

7 0
3 years ago
A sample of the thickness (in hundredths of an inch) of 15 pieces of Fruit Flavored Bubble Gum yielded a sample mean of 6.841 an
Advocard [28]

I answered part b first before a, bec6 the answer to part b is what would aid me in answering part a

Answer:

B. The t test statistic is the appropriate test.

A. Reject the null hypothesis

Step-by-step explanation:

X1 = 6.841, sd1 = 0.155, n1 = 15

X2 = 6.701, sd2 = 0.108, n2 = 10

1. The appropriate test statistic for this question is the t test.

T = x1-x2/√sd1²/n1 + sd2²/n2

T = 6.841-6.701/√0.155²/15 + 0.108²/10

= 2.66

H0: u1 = u2

H1; u1>u2

Significance level = 0.05

Df = n1+n2-2

= 15+10-2

= 23

T critical = 1.714

2.66>1.714

So we have to reject the null hypothesis. Since we have enough evidence that supports this claim that fruit flavor bubble gum is on average, thicker than the fruit flavored gum.

8 0
3 years ago
a chord subtend an angle of 72⁰ at the center of a circle with radius 24.5m. calculate the perimeter of the minor segment​
andre [41]

The perimeter of the minor segment is 77. 4m

<h3>How to determine the perimeter</h3>

The formula for determining the perimeter of the minor segment is given as;

Perimeter = θ/360 × 2πr + 2r sin θ/2

where;

  • radius = 24. 5m
  • θ = 72

Substitute into the formula;

Perimeter = (72/360 × 2 × 3. 142 × 24. 5) +( 2 × 24. 5 × sin 72)

Perimeter = 30. 79 + 46. 60

Perimeter = 77. 4 m

Thus, the perimeter of the minor segment is 77. 4m

Learn more about segment of a circle here:

brainly.com/question/18603257

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5 0
2 years ago
James defines a circle as the set of all the points equidistant from a given point. His statement is not precise enough because
lana66690 [7]

A circle has a center, radius, diameter and points in a plane. Depending on the context, the definition of a circle must contain at least one of the following terms:

Center

Radius

Diameter

Points in a plane

The complete question is as follows:-

James defines a circle as "the set of all the points equidistant from a given point." His statement is not precise enough

because he should specify that

A circle includes its diameter

The set of points is in a plane

A circle includes its radius

The set of points is collinear

<h3>What is a circle?</h3>

A circle is a two-dimensional geometry on the plane having a center point and the circular line is drawn equidistant from the center point.

Based on James' definition of a circle, he needed to specify that the points are in a plane (option c).

As presented in his definition "the set of all the points" can be interpreted in several ways. Some of which are:

the set of points on a line

the set of points in a plane

the set of points in a region

Etc

Of these numerous possible interpretations, James should have specified that the set of points is in a plane

To know more about circles follow

brainly.com/question/24375372

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4 0
2 years ago
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