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harkovskaia [24]
3 years ago
8

Help with these please.

Mathematics
1 answer:
zepelin [54]3 years ago
7 0
For numbers 15-17, we need to remember that two of a triangle's angles are always acute and the third angle will allow us to classify the triangle based on its angles. now that we know this, let's look at #15. the first two angles listed are acute, and the third is an obtuse angle, therefore it is an obtuse triangle. on #16 we have three acute angles, so it is an acute triangle. #17 has two acute angles and a right angle so it is a right triangle.
on numbers 21-23, we need to know that a triangle with all congruent sides is called equilateral, a triangle with two equal sides is isosceles, and a triangle with no equal sides is called scalene. #21 shows two equal sides so it is an isosceles triangle. #22 has three equal sides so it is an equilateral triangle. #23 has no equal sides so it is scalene. hope this helped! :)
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A Walgreens purchase comes to $28. Find the total cost if a 2% sales tax is included.
OverLord2011 [107]

Answer:

The answer is $28.56

Step-by-step explanation:

To find the 2% sales tax, you need to multiply the 2% or 0.02 by 28.

Doing this will give you 0.56.

Then you add 0.56 to 28 to get 28.56, hence, $28.56 is the total cost.

Hope it helps!

4 0
3 years ago
Determine whether each expression is<br> equivalent to 100^t2 - 0.5t
spayn [35]
It is equal to 100 ft longer
6 0
3 years ago
9. (4,10) and (-2,-5)<br>Slope:​
marshall27 [118]

Answer:

-7/2

Step-by-step explanation:

y2-y1 / x2-x1

-5-10 / -2-4

-15 / -6

-7 / -2

= -7/2

4 0
3 years ago
The parking garage has 9 rows with 10 parking space in each row . There are 8 empty space . How many space are filled.
tatiyna

Answer:

82 .

Step-by-step explanation:

9x 10 = 90 then 90-8 = 82 that how many spaces are filled .

7 0
2 years ago
I need the answer for these.<br> 1a: <br> 1b:<br> 1c:
Fantom [35]

1a) 8 / (1/2) = 16 * 3 = 48


1b) 3sqrt(49) = 3 * 7 = 21


1c) (5+2)(-8) / (-2)^3 -3


(7*-8) / (-8 -3)


-56/-11


56/11

3 0
3 years ago
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