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miskamm [114]
3 years ago
9

Laura  earns $ 255 by working 20 hours each week .

Mathematics
1 answer:
Lostsunrise [7]3 years ago
8 0
You will have to figure out the last equation but here is the rest:

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Which of the following is equal to 7 1/4?
marysya [2.9K]

Answer:

C

Step-by-step explanation:

7^{\tfrac 14} = \sqrt[4]{7}

4 0
2 years ago
Plz help this is all the points i have i am still on this question roght now plz what is the answer
madreJ [45]

Answer:

I think the answer is 109.752 ♡

Step-by-step explanation:

8 0
3 years ago
Someone please help out?
Delvig [45]
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7 0
3 years ago
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 <em>14m</em>.

<em>Side of base</em> = <em>10m </em>

Height of Triangular base = <em>8.7m</em>

Formula for <em>surface area of triangular pyramid</em>:

\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
3 years ago
A watering can contained 512 quarts water. After all the plants were watered, only 4 cups remained. How many cups of water were
irga5000 [103]

Answer:

18 cups.

Step-by-step explanation:

7 0
3 years ago
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