1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Nonamiya [84]
3 years ago
9

Pulease helpp

Mathematics
2 answers:
Bas_tet [7]3 years ago
7 0

Answer:

A

Step-by-step explanation:

using formula

area of triangle=1/2 × AB×AC×sinA

WHERE AB=10 andAC=15 and sinA=37○

Zanzabum3 years ago
7 0

Answer: the answer is A

Step-by-step explanation:

You might be interested in
You have two parents, four grandparents, eight greatgrandparents, and so forth.
Leviafan [203]
A.
In the first generation we have 2 ancestors.
In the second generation we have 4 ancestors or 2^{2} ancestors.
In the third generation we have 8 ancestors ot 2^{3} ancestors.

We can see that each succesive generation has two times more members. The sum is:
2+4+8+16+...+ 2^{40}

To calculate number of ancestors we can use formula <span>for the sum of a geometric sequence. Geometric sequence is sequence of numbers that differ by a certain factor. This factor is called ratio. Formula is:
</span>S= a_{1} * \frac{1- r^{n} }{1-r}
<span>Where:
S -> sum
a1 -> first member of a sequence
r -> ratio
n -> number of elements

For this question:
a1 = 2
r = 2
n = 40
</span>S= 2* \frac{1- 2^{40} }{1-2} =2 199 023 255 550
<span>
b.
1 generation = 25 years
40 generations = 40 * 25 = 1000 years

c.
Total number of people who have ever lived = </span>10^{10}
Number of ancestors in 40 generations = 2.2*10^{12}

The number of ancestors is greater than total number of people who have ever lived. This means that not all ancestors were distinct and that in each generation both men and women had children with more than one partner.
8 0
3 years ago
The model represents the equation x - 1 &lt; -4. What is the solution for the inequality?
Step2247 [10]

Answer:

any number equal to or less than -4

Step-by-step explanation:

x - 1 < -4

< represents that -4 is a larger number than x - 1. we know that -4 is a negative number, so anything below -4 would be less. x = -4 would be a good solution, but the reality is that any number equal to or less than -4 is the correct answer. I hope this helps!

7 0
3 years ago
75% of what equals 225?<br> What did you get for 10%, 20% , 30% , 40%, 50% ,60% and 70%?
Lesechka [4]
75% of 225 = 300.

10% = 30
20% = 60
30% = 90
40% = 120
50% = 150
60% = 180
70% = 210
80% = 240
90% = 270
<span>
If you need an explanation, just ask.
</span>
8 0
3 years ago
There is maybe be answer two
dolphi86 [110]

I believe it would be the first choice

Hope that helps!

4 0
2 years ago
Read 2 more answers
Pls help with this question I don't know the answer. Don't put wrong answers pls.
Lapatulllka [165]

Answer:

-2 I believe. because the 1st exponent would make it 9, and then you'd remove 2

Step-by-step explanation:

I hope this is correct and helpful, I tried my best! <3

7 0
3 years ago
Other questions:
  • Describe the transformation of the graph y = (x + 3)2 – 4 from the parent function y = x².
    7·1 answer
  • Lines are L and M are parallel. Find m&lt;1
    8·1 answer
  • Andrew is searching for a cup and discover that he has 20 plates for every 5 Pairs of cups if he has 40 plates how many pairs of
    9·1 answer
  • If a store advertised a sale that gave customers a 1/4 discount what is the fractional part of the original price that the custo
    9·1 answer
  • Please helppppp it’s due in 30 mins
    6·1 answer
  • Using the Exterior Angle Theorem, solve for the identified angle. WILL MAKE Brainliest!
    13·2 answers
  • 1960 there were 3,000 million people on earth, in 1999 there were 6,000 million people on earth, what was the approximate rate o
    8·1 answer
  • Reyna has 5 coins worth 10 cents each and 4 coins
    7·1 answer
  • Which color check marks correctly match up the scenarios with their unit rates? *
    7·1 answer
  • A garden is shaped in the form of a regular heptagon (seven-sided), MNSRQPO. A circle with center T and radius 25m circumscribes
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!