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3 years ago

5.

Mathematics

1 answer:

Simora [160]3 years ago

4 0

A. Yes because -2(2-4) does equals =4
B. Yes because 26/2 does equals = 13
C. No because -3.8(2) equals -7.6 and not -7.4
D. No because 4(2-1)-3(2-2) equals 4 and not -8

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11. Connect Mia has a piece of string that

Nesterboy [21]

Answer:

No because 50 cm would be short of 14 cm required to cover the total perimeter

Step-by-step explanation:

2 meter long string into 4 equal part

1 part = 50 cm

Side length of the square = 16

16 × 4 = 64cm ⇔ Perimeter of the square box

50 < 64

7 0

3 years ago

Can someone help me with this? Thanks! :)

melomori [17]

Answer:

$\huge\boxed{c)\ 15,\ 36,\ 39}$

Step-by-step explanation:

$\text{Let}\ a\leq b\leq c\ \text{the sides of the triangle}.\\\\\text{If}\ a^2+b^2=c^2\ \text{then a triangle is a right triangle}\\\\\text{If}\ a^2+b^2c^2\ \text{then a triangle is a acute triangle}$

$a)\ 28,\ 45,\ 53\\\\28^2+45^2=784+2025=3593\\53^2=2809\\\\28^2+45^2>53^2\to\text{acute triangle}\\\\b)\ 17,\ 22,\ 29\\\\17^2+22^2=289+484=773\\29^2=841\\\\17^2+22^2$

6 0

3 years ago

I’ve been confused on this problem for awhile :(

AlladinOne [14]

Answer:

D 7, -12 is the answer hope this helps✌

4 0

3 years ago

Read 2 more answers

20 PTS PLUS BRAINLIEST

dolphi86 [110]

Mean = sum of data/number of data pieces
numbers of hours of work per day = 6, 7, 8, 9, 10
sum of data / number of data pieces
6+7+8+9+10/5
40/5
8

The mean of the hours worked each day is 8.
Therefore Ryan is correct. Mean is the calculation of the sum of all the data divided by the number of data pieces. I added all the data together and got 40. There are 5 data pieces. So I divided 40 by 5 and got 8.

6 0

3 years ago

Geometry, Multiple choice. Answer all if possible. Ty

Eddi Din [679]

Question 2: The answer is A. 90, 45, 45 because one angle is a right angle which is always 90 degrees and the two remaining angles are the same. Also, all triangles have to have a total amount of 180 degrees when all angle-degree-measurements are combined, which leaves A as the only possible answer.

Question 3: The answer is D. To solve this question you simply multiply all the dimensions of the triangular prism together. That would be: 10 x 14 x 8 = 1,120 in squared

Question 4: Sorry, didn't get this one :(

Question 5: The answer is B. 4pi. Sorry, don't have a good explanation for this one, but I'm pretty sure it is correct.

Question 6: Can't see the question, so I can't help you :(

Question 7: The answer is A. 5 feet. Using the power of elimination you can conclude that the three other options to the answer are improbable.

Question 8: The answer is B. 180 - x. To get this you need to know that 180 degrees is a flat line angle. Since angle x and angle y stem from the same two flat lines intersecting diagonally, you can determine the 180 - angle x would equal angle y.

8 0

3 years ago