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PtichkaEL [24]
2 years ago
8

Can someone help me on question 7b ?

Mathematics
1 answer:
Marizza181 [45]2 years ago
4 0
Lengths are given to 1dp so the biggest that the lengths could be is 4.65cm and 5.35cm. if you use pythagoras on these to find hypotenuse, this is the upper bound.
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Find the surface area of the figure. Round to the nearest tenth if possible.​
Cloud [144]
Area of square base:
13 x 13 = 169
Area of triangular sides:
B x H/2
13 x 16/2 = 104
104 x 4 = because there are 4 triangular sides of the figure = 416
416 + 169 = 585in^2
590in^2
6 0
2 years ago
What percentage of the people liked Rocky the most ?
Ede4ka [16]

Answer:

15%

Step-by-step explanation:

The amount of people who likes Titanic is 25%, because there are 360° in a circle and 90° is used for Titanic. Hence

\frac{90}{360}  =  \frac{25}{100}

To find the percentage of people who liked Rocky the most, we subtract the rest from the total (100%)

100 - 25 - 20 - 30 - 10 = 15

Therefore, 15% of the people liked Rocky the most.

7 0
3 years ago
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just olya [345]
I believe the answer is the fourth option.
7 0
2 years ago
-3t + 9 greater than or equal to-21
nordsb [41]

Answer

t = -4

Step-by-step explanation:

First you subtract 9 from both sides. You get 12 on the right. Then you divide both sides by -3. You get -4.

6 0
3 years ago
Read 2 more answers
Is 7, 20, 25 a right triangle?
love history [14]

Answer:

The answer to your question is below

Step-by-step explanation:

Process

To answer if they are right triangles or not use the Pythagorean theorem which states that the square of the hypotenuse equals the sum of the square of the legs.

a)    25² = 20² + 7²

      625 = 400 + 49

     625 ≠ 449              It is not a right triangle

b)   26² = 24² + 10²

      676 = 576 + 100

      676 = 676               it is a right triangle

c)   13² = 8² + (√10)²

     169 = 64 + 10

      169 ≠ 74                 it is not a right triangle

d)   52² = 48² + 20²

      2704 = 2304 + 400

      2704 = 2704               it is a right triangle

3 0
3 years ago
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