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marta [7]
3 years ago
10

Someone please explain to me how to do this ‼️

Mathematics
1 answer:
pentagon [3]3 years ago
4 0

Answer:

37

Step-by-step explanation:

A triangle always have to finish with 180 degrees so

47+96=143

180-143=37

HOPE THIS HELPS :)

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The line plots show the results of a survey of 12 boys and 12 girls about how many hours they spent reading for pleasure the pre
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Answer:

The range for boys is 0-12 and the mean is 5.1

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Step-by-step explanation:

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Edward wrote a pattern starting at 0 and following the rule "add 2." . Juan wrote a pattern starting at 0 and following the rule
julsineya [31]

Answer:

where are the patternes that are supposed to be shown?

Step-by-step explanation:

it says : Which pair of patterns below represents that of Edward and Juan?

but there are no patterns shown

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3 years ago
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Rewrite the equation of a circle given below in standard form x² + 2x + y² + 22y - 10 = 0
Verdich [7]
x^2+2x+y^2+22y-10=0​\begin{gathered} x^2+2x+y^2+22y-10=0​ \\ (x^2+2x)+(y^2+22y)=10​ \\ (x^2+2x+2)+(y^2+22y+121)=10​+1+121 \\ (x^2+2x+1)+(y^2+22y+121)=132 \\ (x+1)^2+(y+11)^2=132 \end{gathered}

Answer:

(x+1)^2+(y+11)^2=132

7 0
1 year ago
Please help me thank you
S_A_V [24]
Question 1:

We have a 45-45-90 right triangle with the hypotenuse being the length from one corner to the opposite corner.

Multiply 30 ft with the square root of 2 and use a calculator to help give you numerical value to get your answer.

30 \sqrt{2} \approx 42

Your answer is the second choice.

Question 2:

The equilateral triangle can be divided into 2 30-60-90 triangles with the longer leg being the altitude. To get half of the side length of the right triangle, divide the altitude by the square root of 3.

\dfrac{15}{ \sqrt{3} }=\dfrac{15 \sqrt{3} }{3}=5 \sqrt{3}

The full side length is double of that, which is 10 \sqrt {3}.

Multiply that by 3 to get the full perimeter.
10 \sqrt{3}*3=30 \sqrt{3}

Your answer is the third choice. Hope this helps! :)
5 0
3 years ago
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The density of aluminum is 2.375 grams per cubic centimeter. Find the volume of a portion of a sheet of aluminum that has a mass
abruzzese [7]
This is the concept of density, volume and mass of different materials; To calculate for the volume of an aluminium material with density of 2.375 grams per cubic centimeter and a mass of 0.78 Kilogram we proceed as follows;

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