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Dominik [7]
3 years ago
14

What is the best estimate for 8.3 x 4.9?

Mathematics
1 answer:
sammy [17]3 years ago
6 0

Answer:

40.67

Step-by-step explanation:

I calculated it

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1/4 + 1/3= {Khan Academy btw}
zmey [24]

Answer: \frac{7}{12}

Step-by-step explanation:

\frac{1}{4} +\frac{1}{3}=\frac{(1)(3)+(4)(1)}{(4)(3)}  =\frac{3+4}{12} =\frac{7}{12}

5 0
3 years ago
Hook a brother up please
zzz [600]

Answer: v = 13920 cm cubed

8 0
3 years ago
What is the surface area of the composite figure
leva [86]

Answer:

The answer is 672.

Step-by-step explanation:

To solve this problem, first let's find the surface area of the rectangular prism. To do that, multiply each dimension with each (times 2 | just in case you don't understand [what I'm talking about is down below]).

8 x 8 x 2 = 128

8 x 11 x 2 = 176

8 x 11 x 2 = 176

Then, add of the products together to find the surface area of the rectangular prism.

176 + 176 + 128 = 480

Now, let's find the surface area of the square pyramid. Now, for this particular pyramid, let's deal with the triangles first, then the square. Like we did with the rectangular prism above, multiply each dimension with each other (but dividing the product by 2 | in case you don't understand [what i'm talking about is down below]).

8 x 8 = 64.

64 ÷ 2 = 32.

SInce there are 4 triangles, multiply the quotient by 4 to find the surface area of the total number of triangles (what i'm talking about is down below).

32 x 4 = 128.

Now, let's tackle the square. All you have to do is find the area of the square.

8 x 8 = 64.

To find the surface area of the total square pyramid, add both surface areas.

128 + 64 = 192.

Finally, add both surface areas of the two 3-D shapes to find the surface area of the composite figure.

192 + 480 = 672.

Therefore, 672 is the answer.

6 0
3 years ago
5. Name three sets of supplementary angles.<br>and<br>and<br>and​
jarptica [38.1K]
87 and 93
45 and 135
74 and 106
8 0
3 years ago
5 divided by a =60. Solve a
Mandarinka [93]

Answer:

a = 300

Step-by-step explanation:

so 5/a=60

multiply 60 by 5

4 0
3 years ago
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