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In-s [12.5K]
2 years ago
11

PLS HELP ME, PLS THIS IS DUE FIRST CORRECT ANSWER GETS BRAINLIEST​

Mathematics
2 answers:
goblinko [34]2 years ago
5 0

Answer:

C

Answer is
C                                                    

Zepler [3.9K]2 years ago
4 0

Answer:

9.4 ( 4 + 12 ) = 145.6

Step-by-step explanation:

i used a calculator

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One angle of a triangle measures 136°. The other two angles are congruent. Enter and solve an equation to find the measure x of
Juliette [100K]

<u>136 + x + x = 180. Or, to simplify, 136 + 2x = 180. The congruent angles measure 23 degrees each.</u>

We know this because of a simple rule that goes for all triangles: The measures of all three angles in a triangle will <em>always</em> add up to 180 degrees.

One angle of a triangle measures 136 degrees. The other two angles are congruent (have the same measure).

(x stands for an unknown angle measure.) So the equation we would use is 136 + 2x = 180. We can solve this within a few steps.

1. We subtract 136 from 2x in order to isolate 2x. But if we subtract something from the left side of the equation, we have to subtract it from the right side too. Otherwise the equation will be wrong; We would be taking away the balance.

2x = 180 - 136

2. Now that 2x is isolated, we solve 180 - 136.

2x = 46

3. If we know now that 2x is equal to 46, how do we find out what x is equal to? We divide by 2 (on both sides or it'll be wrong) to get x.

2x = 46

2x/2 = 46/2

x = 23

Now we know! x = 23... The other two angles are both 23 degrees. We can check to see if that's right by solving 23 + 23 + 136... Does it add up to 180? Yes! :)

7 0
3 years ago
One positive integer is 7 less than twice another. The sum of their squares is 346. Find the integers. should be 2 answers
vovikov84 [41]

Answer:

the two positive integers are x= 15, and y = 11

Step-by-step explanation:

Let the first integer be x

Let the second integer be y

from the problem we can decode the following equations

x=2y-7 ---------------------------- equation 1

x^{2} + y^{2}= 346 -------------------------equation 2

substituting the value of x into equation 2, we have

(2y-7)^{2} + y^{2}= 346 --------------equation 3

expanding, we have

4y^{2}-28y+49+y^{2}=346

5y^{2}-28y-297 = 0

from this, y = 11 or y = -5.4

since our answer is a positive integer, we will have to pick the first value of y which is y = 11

substituting the value of y into equation 1, we have

x= 2(11)-7=15

hence x = 15

Therefore, we have x= 15, and y = 11

these are the two positive integers

7 0
3 years ago
The sum of two numbers is 6. Two less than three times the smaller is equal to the larger
Natasha_Volkova [10]
So... let's say, we have two numbers "a" and "b",
"a" is the smaller one, "b" is the larger one
so, their sum is 6
a + b = 6

3 times the smaller => 3 * a or 3a
now, two less than that
3a - 2

that equals the larger "b"

3a - 2 = b
\bf a+b=6&#10;\\\\&#10;\boxed{3a-2}=b\\\\&#10;--------------\\&#10;thus&#10;\\\\&#10;a+(\boxed{3a-2})=6  

solve for "a",

now, what's "b"?  well, 3a - 2 = b :)
8 0
3 years ago
Read 2 more answers
What is 22/7* 49/2* 49/2
Sholpan [36]

Answer:

1886.5

Step-by-step explanation:

3 0
3 years ago
Katie has 6500 in her savings account. If it earns 6% interest every month how much savings does she have in her account in over
svetlana [45]

Step-by-step explanation:

First, you recognize the algorithm for the equation: A=P(1+r)^n. This is the algorithm for interest. P is the amount of initial money (in this case, 6500), r is the interest rate (6%, or 0.06), and n is the number of times it is being compounded. Since half a year is given to me, 6 months is what I will be using, or just 6.

Next, plug in the numbers. The equation is now: A=6500(1+0.06)^6.

Now time to solve. First add what's in the parenthesis, and put it to the power of 6, for 6 months. Then multiply that amount to the initial dollar amount; 6500. This will leave you with 9,220.37.

3 0
4 years ago
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