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Ann [662]
3 years ago
13

A plus 5 is the side of an equilateral triangle. find it's perimeter

Mathematics
2 answers:
Bezzdna [24]3 years ago
6 0
A+5 = 1 side, so the perimeter is 3(a+5) or P = 3a+15
Nina [5.8K]3 years ago
3 0
One side = a + 5
there are 3 equal sides on an equilateral triangle

3(a+5) = 3a+15
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Can someone please help me?
Crazy boy [7]

Answer:

70°

Step-by-step explanation:

since two lengths are equal to 3.5 that’s means there’s are two equal angles (55° and 55°)

a triangle adds up to 180°

so to find x we set this up:

x +55 +55 = 180

x + 110 = 180

x = 70°

3 0
3 years ago
Calculate the sum. -16 + (-12) C A. 28 B. 4 C. -4 D. -28
AlexFokin [52]

Answer:

-28

Step-by-step explanation:

-16 +(-12)

= -16 - 12

adding both of them,

= - 28

3 0
3 years ago
Write an inequality to match this statement: -7 is located to the right of -10. **Hint** You need to use shift and the comma but
vampirchik [111]

Answer:

-7 > -10

Step-by-step explanation:

We just have to compare these two numbers. When you're comparing two negative numbers, the smaller number is the bigger one. Ex. -3 is bigger than -6, so we can say that -3 > -6 (-3 is greater than -6). This means that -7 is larger than -10, which allows you to say that -7 > -10.

3 0
3 years ago
Which equation represents a line which is parallel to the line 7y - 4x = -14?
iVinArrow [24]
Answer: Any line with a slope of 4/7 and a y-intercept that is NOT -2

You should first turn the equation into y intercept form:
7y - 4x = -14; Add 4x from both sides
7y = 4x - 14; divide 7 from both sides
y = 4/7x - 2

Since you did not include choices, the answer will be the line with the slope 4/7 and without the y-intercept -2, because lines that are parallel will always have the same slope.

Example Answers: y = 4/7x + 2, y= 4/7x - 4
y = 4/7x + 10

4 0
3 years ago
Select the correct answer. what is the approximate solution to this equation? a. b. c. d.
Diano4ka-milaya [45]

The approximate solution to the given equation is x ≅ 148.4. The correct option is C. x ≈ 148.4

<h3>Solving equations</h3>

From the question, we are to determine the approximate solution to the given equation,

The given equation is

4lnx -8 =12

First, add 8 to both sides

4lnx -8+8 =12+8

4lnx =20

Now, divide both sides by 4

ln x =\frac{20}{4}

ln x = 5

Take the exponents of both sides

e^{lnx} = e^{5}

x = 148.413

x ≅ 148.4

Hence, the approximate solution to the given equation is x ≅ 148.4. The correct option is C. x ≈ 148.4

Learn more on Solving equations here: brainly.com/question/26831160

#SPJ1

3 0
2 years ago
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