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Karolina [17]
3 years ago
10

State if each triangle with the following side lengths is 7, 8, 10 acute, obtuse, or right.

Mathematics
1 answer:
zhuklara [117]3 years ago
4 0

Step-by-step explanation:

Compare the longest side to the other 2 shorter sides of the triangle:

10² : 7² + 8²

= 100 : 113

Since 7² + 8² > 10², it is an acute triangle.

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Find the value of the angle θ rounded to 1 DP.
zalisa [80]

Answer:

ok first we add 9 and 29 together

38

now we add 90

128

so the other angle is

52

so we just use the formulas

and

Side a = 26.56371

Side b = 43.14662

Side c = 34

so the side with a x on it is 26.6

so know we have to do the same thing but not including the top part

ok so the side with x on it is 18.8

so 26.6-18.8=7.8

x=7.8

*WARNING* This shoud be close to the answer but may to up to a couple dp higher or lower sorry i just don't have time to be more accurate

Hope This Helps!!!

3 0
3 years ago
X^2+10x+5=30 quadratic equation
Vsevolod [243]
First subtract 30 from both sides so it is equal to 0

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this is equivalent to 
4 0
3 years ago
StartFraction 47 Over 39 EndFraction = StartFraction b Over 2 EndFraction
statuscvo [17]

Answer:

2.41

Step-by-step explanation:

Cross multiplication

47(2)=39b

94÷39=39b÷39

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3 0
3 years ago
Solving inaqualitues
nikdorinn [45]

Answer:

Step-by-step explanation:

Step 1 Eliminate fractions by multiplying all terms by the least common denominator of all fractions.

Step 2 Simplify by combining like terms on each side of the inequality.

Step 3 Add or subtract quantities to obtain the unknown on one side and the numbers on the other.

8 0
4 years ago
Is this right and can someone show me the explanation plz?and how to do the problem I have to show my work
Zina [86]

Answer:

yes it is.

x = 4 and y = -3

Step-by-step explanation:

Solve simultaneously using elimination method:

equation 1 - equation 2

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_________

x = 4

plug 4 into any of the 2 equations and solve for y.

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12 + y = 9

12-12 + y = 9-12

y = -3

7 0
3 years ago
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