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3 years ago

Rachel, Tammy, and Bryan all bought something at the mall. Rachel's necklace cost 20% more than Tammy's shoes.

1 answer:

3 0

Tammy's shoes cost $ 30

Rachels necklace cost 20% more then Tammy's shoes....20% more then 30......30(1.20) = $ 36

Bryans video cost 30% more then Rachels necklace....30% more then 36...36(1.30) = $ 46.80 <===

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Which angel is a right angle (Choose One)(100 Points)

lorasvet [3.4K]

$\huge\mathsf\blue{Answer}:-$

Hey mate,

Attachment 3 is a right angle because a right angle makes a straight line ( 90 degree angle)

that's why it's a right angle

<h3>plz mark me as brainliest </h3>

7 0

2 years ago

Read 2 more answers

The radius of a cylinder is doubled and its height is halved. Find the ratios of their surface areas.

Inessa [10]

Answer: 1:1

Step-by-step explanation:

Let r be the radius and h be the height of a cylinder.

Formula: Curved surface area of cylinder = $2\pi rh$

Now, if radius of a cylinder is doubled and its height is halved, then new radius will be R= 2r and new height will be $H=\dfrac{1}{2}$

Now, new surface area = $2\pi RH= 2\pi(2r)\dfrac{h}{2}= 2\pi rh$

Ratio of curved surface areas : $\dfrac{\text{Surface area}}{\text{New surface area}}=\dfrac{2\pi rh}{2\pi rh}=\dfrac{1}{1}$

Hence, the ratios of their surface areas = 1:1 .

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2 years ago

I did the first question already I need help with the second pls :>

OleMash [197]

Answer:

The box is considered a cube so,

4 x 4 = 16

56 divided by 16 = 3.5 is your height

1/2 x 1/2 x 1/2 = 1/8.

56 divided by 1/8 = 7 cubes

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2 years ago

You know whats weird lol?

irga5000 [103]

Answer:

wow

Step-by-step explanation:

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2 years ago

Read 2 more answers

What is the area of triangle UVW

kogti [31]

This is a polygon with vertices on the lattice. Let's use Pick's Theorem,

A = (1/2) B + I - 1

where A is the area, B is the number of lattice points on the boundary and I is the number of lattice points in the interior.

In addition to the 3 vertices there are 3 more boundary points on UV and 6 more on WV, none on UV, B=3+3+6=12. In the interior I count I=9 lattice points.

A = (1/2) 12 + 9 - 1 = 14

Answer: 14

Obviously they just want us to say this is a right triangle, so the legs are altitude and base,

A = (1/2) b h (1/2) |UW| |WV| = (1/2) (4) (7) = 14

That checks.

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3 years ago