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lbvjy [14]
3 years ago
11

Please help me with this assignment I need help and been struggling with it so please help me and is due by 7;50 pm please answe

r 5-8

Mathematics
1 answer:
gavmur [86]3 years ago
6 0

Answer:

5. DBE and CBA both=48 degrees

6. a. scalene, right

b.isosceles, obtuse

c. scalene, acute

7. 50 degrees

8. im not completely sure how to do this one but ill check into it

Step-by-step explanation:

its a lot to explain, in 5 find p and plug it in.

in 6, just look at the sides and angles.

scalene- no sides equal

isosceles- 2 sides equal

equilateral- all sides equal

right- one 90 degree angle

acute- all acute angles (less than 90)

obtuse- one obtuse angle (more than 90)

7. add 90 and 40 to get 130. 180-130=50

8. im gonna look up how to do this one right now

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What type of triangle has side lengths 9, 10, and √130? A. obtuse B. not a triangle C. acute D. right
EastWind [94]

Answer: Option C.

Step-by-step explanation:

The lengths of our triangle are:

9, 10 and √130.

If the triangle is a triangle rectangle, by the Pitagoream's theorem we have:

A^2 + B^2 = H^2

in this case H is the larger side, this must be √130.

then:

A and B must be 9 and 10.

9^2 + 10^2 = (√130)^2

81 + 100 = 130

This is false, so this is NOT a triangle rectangle, the hypotenuse is shorter than it should be.

Now, we have some kind of rule:

 if A^2 + B^2 = H^2 then we have one angle of 90° and two smaller ones. (triangle rectangle)

 if A^2 + B^2 > H^2 then all the angles are smaller than 90°, this is an acute triangle.

 if A^2 + B^2 < H^2 then we have one angle larger than 90°, this is an obtuse angle.

(H is always the larger side, A and B are the two shorter ones).

In this case:

81 + 100 > 130

Then this must be an acute angle.

3 0
3 years ago
The difference of six times a number and 7 is -49
gtnhenbr [62]
Greetings!

"<span>The difference of six times a number and 7 is -49"...

In number and variables, this would be:
</span>6x-7=-49&#10;
<span>
Add 7 to both sides.
</span>(6x-7)+7=(-49)+7
<span>Simplify.
</span>6x=-42
Divide both sides by 6.
(6x)/6=(-42)/6
Simplify.
x=-7

Hope this helps.
-Benjamin
5 0
3 years ago
Which ones are the correct ones?
kirill115 [55]

Answer:

a) 5/-6, - 5/6

b) 7/-2, -7/2

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
A drink is mixed in the ratio
Contact [7]

Answer:

3

Step-by-step explanation:

 Drink mix ratio:

        Lemonade   :    Orange      :     Cranberry

                 6           :          3          :          C

  Fraction  of Cranberry juice  = \frac{3}{12}

Sum of the ratio = 6 + 3 + C  = 9 + C

   Fraction of Cranberry;

                \frac{C}{9 + C}   = \frac{3}{12}

               3(9 + C)  = 12C

               27 + 3C  = 12C

               27  = 12C - 3C

                9C  = 27

                   C = 3

The missing number will be 3

4 0
3 years ago
4x²+4x-24 step by step
kaheart [24]

Answer:

4(x-2)(x+3)

  1. Factor a GCF from the expression, if possible.
  2. Factor a Trinomial, if possible.
  3. Factor a Difference Between Two Squares as many times as possible.

Please Mark Brainliest If This Helped!

4 0
2 years ago
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