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3 years ago

I NEED HELP PLZ OK plz plz

Mathematics

2 answers:

lyudmila [28]3 years ago

5 0

Answer:

3) 25

4)30

5) right angle

Step-by-step explanation:

3) 115-90=25

4)70-40=30

5)45+45=90

krek1111 [17]3 years ago

4 0

3. The total angle is 115, and one chunk of it is 90. Subtracting the two, gives us 25°, which should be the other measure, as m∠ABE and m∠EBC should add up to m∠ABC.

4. Same thing as before. m∠DGJ and m∠JGK should add up to m∠DGK.

Therefore, m∠DGJ is 70 - 40 = 30°.

5. When two 45° angles are put together, it will be 90°, or as it is usually called, a right angle.

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For her presentation on the Wonders of the World, Mary baked a square pyramid-shaped cake as pictured below. The slant height of

mihalych1998 [28]

Answer:

$V=196in^3$

Step-by-step explanation:

The volume of a pyramid is:

$V=\frac{A_{b}h}{3}$

where $A_{b}$ is the area of the base and $h$ is the height (the perpendicular measurement between base and highest point, not the slant height)

Since the base is a square, the area is given by:

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Using pythagoras:

$hypotenuse^2=leg1^2+leg2^2$

substituting our values, and indicating that leg 1 is height h:

$(10in)^2=h^2+(4in)^2$

$100in^2=h^2+16in^2$

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$h^2=100in^2-16in^2\\h^2=84in^2\\h=\sqrt{84in^2}\\ h=9.165in$

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rounding to the nearest cubic inch: $V=196in^3$

4 0

3 years ago

The question is the photo

Readme [11.4K]

For this question you can say:
5/9( °F - 32) = -10 °C
so now you should solve the equation:
5F/9 - 160/9 = -10
⇒ 5F/9 = -10 + 160/9 ⇒ 5F/9 = -90/9 + 160/9 ⇒ 5F/9 = 70/9 ⇒ now you can multiply both sides of the equation by 9 so you will have:
5F = 70 ⇒ F = 14 ° F :)))
i hope this is helpful
have a nice day

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3 years ago

Howdoyouwrite 2/4 as a percentage? write your answer using a percent sign %?

xz_007 [3.2K]

First, divide 2 by 4 which = 0.5
Next, move the decimal point two places over to make 0.5 = 50.0
Then, take 50.0 and add the % sign. This would make = 50%
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3 years ago

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Answer:

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Step-by-step explanation:

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