3 years ago

I need help plz and fast!!

Mathematics

1 answer:

KonstantinChe [14]3 years ago

7 0

Answer: 15

She will run and swim again in 15 days.

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Find the area of the shape shown below.

sveticcg [70]

Answer:

A = 15u²

Step-by-step explanation:

Area of a Trapezoid Formula:

$\frac{h}{2}*(b_1+b_2)$

Plug in our values (h = 3, b1 = 7, b2 = 3)

$\frac{3}{2}*(7+3)$

Now we evaluate

$\frac{3}{2}*(10)$

$\frac{30}{2} = 15$

6 0

2 years ago

Could a polyhedron exist with the given number of faces, vertices, and edges? Drag yes or no to each combination

DanielleElmas [232]

Answer:

(a) No

(b) No

Step-by-step explanation:

Given

See attachment

Required

Select Yes or No for each

To do this, we make use of Euler's formula

$F + V - E = 2$

Where

$F \to Faces; V \to Vertices; E \to Edges$

$(a):\ Faces = 8; Vertices = 12; Edges = 6$

Using: $F + V - E = 2$

$8 + 12 - 6 = 2$

$14 = 2$

The above equality is false. Hence, (a) does not exist

$(b):\ Faces = 6; Vertices = 6; Edges = 4$

Using: $F + V - E = 2$

$6 + 6 - 4 = 2$

$8 = 2$

The above equality is false. Hence, (b) does not exist

$(c):\ Faces = 20; Vertices = 30; Edges = 12$

Using: $F + V - E = 2$

$20 + 30 - 12 = 2$

$38 = 2$

The above equality is false. Hence, (c) does not exist

5 0

3 years ago

Read 2 more answers

What is true about the sum of the two polynomials? 6s^2t – 2st^2 4s^2t – 3st^2

Snowcat [4.5K]

The sum is 10s^2t-5st^2. With two separate sections it’s a binomial, and the sum of the powers of the variables is 2+1=3, it has a degree of 3.

7 0

3 years ago

⚠️PLEASE HELP FAST⚠️

Mrrafil [7]

Answer:

I thi k it will be b or c because the angles

4 0

3 years ago

a group of 29 friends get together to play a sport first people must be divided into teams each team has to have exactly four pl

andre [41]

Answer:

They can make one person leave

Step-by-step explanation:

7 0

3 years ago