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3 years ago

9

A triangle that has three sides equal to 4.5 cm is an example of which type of triangle?

1 answer:

goldfiish [28.3K]3 years ago

8 0

It is an equilateral because all three sides are equal

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What is the value of x?<br>please I need step by step solution

Bond [772]

Step-by-step explanation:

We apply the log rule that states that if there is a number multiplied by a log, the number becomes exponent of the argument of the log:

3 = log(8) + log(x^3)

Now we have sum of logs. Another property tells us that 2 logs with the same base a, that are added together, are equal to the log in base a of the product of the arguments:

3 = log(8x^3)

Now for definition of log:

10 ^ 3 = x^3

Therefore:

x = 10

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3 years ago

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PULEASEEEEEE I HELPPPPP!!<br><br> *LOOK AT PICTURE*

Elza [17]

Answer:

B Cos 3/25

Explanation:

X is the missing angle. From X the opposite side is the bottom of the triangle, and the adjacent is 3. Since Cos is the adjacent over the hypotenuse, the answer is Cos 3/25

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3 years ago

Which decimal is greater: 7.09 or 7.1?

bixtya [17]

Answer: 7.1

Step-by-step explanation:

7.09<7.10

7.10=7.1

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2 years ago

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What is the perimeter of the rectangle shown on the coordinate plane, to the nearest tenth of a unit?

Pavel [41]

see the attached figure to better understand the problem

Let

x------> the length side of a rectangle

y-------> the width side of a rectangle

we know that

the perimeter of a rectangle is equal to the formula

$P=2x+2y$

In this problem

$AB=DC=x\\AD=BC=y$

Step 1

<u>Find the distance AB</u>

$A(-6,4)\\B(4,2)$

we know that

the distance's formula between two points is equal to

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

substitute the values

$dAB=\sqrt{(2-4)^{2} +(4+6)^{2}}$

$dAB=\sqrt{(-2)^{2} +(10)^{2}}$

$dAB=\sqrt{104}\ units=10.2\ units$

Step 2

<u>Find the distance BC</u>

$B(4,2)\\C(3,-3)$

we know that

the distance's formula between two points is equal to

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

substitute the values

$dBC=\sqrt{(-3-2)^{2} +(3-4)^{2}}$

$dBC=\sqrt{(-5)^{2} +(-1)^{2}}$

$dBC=\sqrt{26}\ units=5.1\ units$

Step 3

<u>Find the perimeter</u>

we know that

the perimeter of a rectangle is equal to the formula

$P=2x+2y$

$P=2AB+2BC$

substitute the values of the distance in the formula

$P=2*10.2+2*5.1=30.6\ units$

therefore

<u>the answer is</u>

The perimeter of the rectangle is equal to $30.6\ units$

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3 years ago

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First gets brainly again :D

igomit [66]

Answer:

Blanks in order: Multiplication/multiplying, -7.6-4.4, -12

Step-by-step explanation:

Hi there!

$-7.6-2(2.2)$

<u>The order of operations</u>: Parentheses, exponents, division/multiplication, addition/subtraction

After exponents is division and multiplication. Because there is no division in the expression, the next step would be multiplying 2 and 2.2:

$= -7.6-4.4$

Now our final answer after simplifying the above would be:

$= -12$

I hope this helps!

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3 years ago

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