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2 years ago

Please help asap! please

Mathematics

1 answer:

Savatey [412]2 years ago

7 0

Answer:

1) given

2) reflexive

3) converse isosceles triangle thm

4) isosceles triangle thereom

5)CPCT

Step-by-step explanation:

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In a group 120 children there are teice as many boys as girls. How many girls are there?

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Answer:

40 girls 80 boys

Step-by-step explanation:

80/2=40

40+80=120

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2 years ago

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Thirty percent of the people refused to work and just sat around. if 1400 people worked, how many just sat around?

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30% can also be written as .3, which is easier to use in this case.

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2 years ago

What is the area of the figure? 40 ft2 84 ft2 96 ft2 can't be determined

mina [271]

Answer:

$A=80\ ft^2$

Step-by-step explanation:

we know that

The area of the figure is equal to the area of an isosceles triangle (has two equal sides) plus the area of a rectangle

step 1

Find the area of the triangle

The area of the triangle is equal to

$A=\frac{1}{2}bh$

we have

$b=16\ ft$

To find out the height of the triangle Apply the Pythagorean Theorem

$10^2=(16/2)^2+h^2$

solve for h

$100=64+h^2$

$h^2=100-64$

$h^2=36$

$h=6\ ft$

Find the area of triangle

$A=\frac{1}{2}(16)(6)$

$A=48\ ft^2$

step 2

Find the area of rectangle

The area of rectangle is equal to

$A=LW$

we have

$L=16\ ft\\W=2\ ft$

substitute

$A=(16)(2)=32\ ft^2$

step 3

Find the area of the figure

Adds the areas

$A=48+32=80\ ft^2$

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3 years ago

What is 9/36 equivalent to?

Ronch [10]

$\frac{9}{36}=\\\\\frac{9:3}{36:3}=\boxed{\frac{3}{12}}\\\\\frac{9:9}{36:9}=\boxed{\frac{1}{4}}\\\\therefore\ \frac{9}{36}=\frac{1}{4}\\\\so,\ next\ equivalent\ fractions\ are:\\\\\frac{1\cdot2}{4\cdot2}=\boxed{\frac{2}{8}}\\\\\frac{1\cdot4}{4\cdot4}=\boxed{\frac{4}{16}}\\\\\frac{1\cdot5}{4\cdot5}=\boxed{\frac{5}{20}}\\\vdots\\and\ an\ infinite\ number\ of\ other$

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3 years ago