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klasskru [66]
3 years ago
13

An isosceles triangle has base angles measuring 25 degrees each. What is the measure of the vertex angle?

Mathematics
1 answer:
Yuri [45]3 years ago
7 0
A triangle's sum must add to 180 degrees. If two of the angles, summed, equal 50 degrees, then the vertex angle must equal 130 degrees. So, the vertex angle equals 130 degrees.
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An earthquake wave travels through 55 km of rock in 25 seconds.
rewona [7]

Answer:Therefore, the relationship will be of the form, y = mx + b, or in this case, d = (max distance / max time)t + 0.

Step-by-step explanation:

7 0
4 years ago
Please help me i dont get it at all
Hitman42 [59]

y = 218.2. The lenght of side y by  trigonometry is 218.2.

In order to solve this problem we are going to use the angles and sides of a right triangle and its relation by expressions that we call trigonometric ratios.

In the image we can see that the lenght of the opposite leg is 141 , we do not know the lenght of the adjacent leg y and the hypotenuse x. The key to solve this problem is to use trigonometric ratios and the equation tan θ = sin θ/cos θ = opposite leg/adyacent leg = 141/y

Clear for y for the equation tan θ = sin θ/cos θ = 141/y, we obtain:

y = arctan θ (141)

y = arctan (43°)(141) = 218.2

8 0
3 years ago
Stacy made a necklace using 4 times as many blue beads as red beads. She used a total of 40 beads. How many blue beads did Stacy
makvit [3.9K]
Well, we know that Stacy uses one red bead for every 4 blue beads. So, we can determine that 1 r=4 b. We know that 4+1=5, so 5*8 is 40 (our total). So ti find out how many blue beads she used we would do 4*8=32. So our answer would be 32.
7 0
4 years ago
Read 2 more answers
A book sold 35,900 copies in its first month of release. Suppose this represents 8.3% of the number of copies sold to date. How
s2008m [1.1K]

Given: A book sold 35,900 copies in its first month of release. Suppose this represents 8.3% of the number of copies sold to date.

Required: To determine how many copies have been sold to date.

Explanation: Let the number of copies sold to date be x. Then according to the question-

8.3\%ofx=35900

Simplifying for x as follows-

\begin{gathered} \frac{8.3}{100}\times x=35900 \\ x=\frac{35900\times100}{8.3} \\ x=432530.12 \\  \end{gathered}

Final Answer: The number of copies sold = 432,530 (approx).

5 0
1 year ago
What is the value of the angle marked m? P​
Anettt [7]

Answer:

180

Step-by-step explanation:

bcoz it's a straight angle

3 0
2 years ago
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