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4 years ago

I need to know this ASAP I need to get through this lesson before Friday

Mathematics

2 answers:

ANEK [815]4 years ago

8 0

Answer:

Step-by-step explanation:

the angles in a triangle have to add up to 180°

65 + 80 = 145

180-145 = 35

the missing angle is 35°

choice c matches because it has 2 of the same angle measures, which means they all have to be the same

valentina_108 [34]4 years ago

7 0

Answer:

It is C.

Step-by-step explanation:

So,A triangle is equal to 180 and you would add up the numbers you already have which equal 145.180-145= 35° and thats why the last letter would be 35° in your answer and be correct which would be that m<F=35° is the same as ABC in the last letter. Since,<B is the second letter in ABC and so is <E in DEF and have the same degree that would be the same as well so I hope that helps:)

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What is the magnitude (size) of 3.7?

Pavel [41]

Answer:

Step-by-step explanation:

|3.7| = 3.7

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3 years ago

Evaluate 1/4 plus 5/8. please show work

adelina 88 [10]

Answer:

7/8.

Step-by-step explanation:

The LCD of 4 and 8 is 8.

So we convert: 1/4 = 2/8.

2/8 + 5/8 = 7/8 (answer).

6 0

4 years ago

CORRECT ANSWER GETS BRAINLIEST

MissTica

Pretty sure it's D :)))))

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4 years ago

Read 2 more answers

The endpoints of a diameter of a circle are A(2,1) and B(5,5). Find the area of the circle in terms of pi.

Tcecarenko [31]

Answer:

The area of the circle is $A=6.25\pi\ units^{2}$

Step-by-step explanation:

step 1

Find the diameter of circle

we know that

The diameter of the circle is equal to the distance AB

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

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

substitute the values

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

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

$AB=\sqrt{25}$

$AB=5\ units$

therefore

the diameter of the circle is

$D=5\ units$

step 2

Find the area of the circle

The area of the circle is equal to

$A=\pi r^{2}$

$r=5/2=2.5\ units$ ----> the radius is half the diameter

substitute

$A=\pi (2.5)^{2}$

$A=6.25\pi\ units^{2}$

4 0

4 years ago

Which expressions are equivalent to (2^5)^-2

Aleonysh [2.5K]

Answer: Choice B) 2^(-10) and 1/1024

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Explanation:

We'll use these two rules
Rule 1: (a^b)^c = a^(b*c)
Rule 2: a^(-b) = 1/(a^b)

Using rule 1 above, we can say
(2^5)^(-2) = 2^(5*(-2)) = 2^(-10)
So 2^(-10) is one of the answers

Now use rule 2 to convert 2^(-10) into...
2^(-10) = 1/(2^10) = 1/1024
so 1/1024 is the other answer

6 0

3 years ago