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2 years ago

Find x, y, and z. plsssssssssssssssssss

Mathematics

1 answer:

Alona [7]2 years ago

3 0

Answer:

z= 104

y=76

x=76

Step-by-step explanation:

z+76= 180. solve for z

z=x

y=76

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Can someone please help !!!!!!!!!!!!!!!!

Yuliya22 [10]

Answer:

u=10

Step-by-step explanation:

4 0

3 years ago

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Use the net as an aid to compute the surface area (rounded to the nearest integer) of the triangular pyramid with an equilateral

aleksandrvk [35]

Answer:

Correct answer is $C)\ 254\ m^{2}$

Step-by-step explanation:

As per the given diagram, we know the following details:

Height of the triangular pyramid is 14m.

Side of base = 10m

Height of Triangular base = 8.7m

Formula for surface area of triangular pyramid:

$\text{Area = Area of Triangular base + 3 }\times\text{Area of side triangle}$

(Triangular base is shown in the dotted lines in the question figure.

The other 3 triangles are the side triangles.)

We know that,

$\text{Area of a triangle = }\dfrac{1}{2} \times \text{Base} \times \text{Height}$

$\Rightarrow \text{Required Surface Area = } \dfrac{1}{2} \times 8.7 \times 10 + 3 \times \dfrac{1}{2} \times 14 \times 10\\\Rightarrow \dfrac{1}{2}\times (87 + 3 \times 140)\\\Rightarrow \dfrac{1}{2}\times (87 + 420)\\\Rightarrow \dfrac{1}{2} \times 507\\$\approx$ 254 m^{2}$

Hence correct answer is $C)\ 254\ m^{2}$ .

3 0

2 years ago

For which operations is the set {0, 1} closed?

velikii [3]

0 × 0 = 0
0 × 1 = 0
1 × 1 = 1

Which means multiplication is closed under {0, 1}

1 ÷ 1 = 1
0 ÷ 1 = 0

Division is not closed under {0, 1}

1 + 1 = 2

Addition is not closed under {0, 1}

0 - 1 = -1

Subtraction is not closed under {0, 1} either

So it's only A. Multiplication which is closed under {0, 1}

5 0

3 years ago

Find the unit rate. 12 plates in 4 stacks plates per stack

emmasim [6.3K]

Answer:

Step-by-step explanation:

3 plates per stack

divide 4 by 4 to get one and 12 by 4 to get 3

8 0

2 years ago

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What is the value of x? - 40 - 70 - 140 - 160