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FinnZ [79.3K]
3 years ago
5

Ann, Chau, and Keith sent a total of 133 text messages over their cell phones during the weekend. Keith sent 3 times as many mes

sages
as Chau. Chau sent 8 fewer messages than Ann. How many messages did they each send?
Mathematics
1 answer:
crimeas [40]3 years ago
3 0
33 + 25 + 75 = 133 kdkdk

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Select all the solutions to this equation.<br><br> x2 = 121
Tomtit [17]

Answer:

x {}^{2}  = 121 \\ x =  \sqrt{121} \\ x =  + 11 \: or \: x =  - 11

hope helpful <3

3 0
2 years ago
Find the measure of the indicated angle to the nearest degree
Y_Kistochka [10]

Answer:

32°

Step-by-step explanation:

use this formula :

Now you want to get the angle be x, so the opposite side is 28 and hypotenuse is 53. Putting in the formula we get:

Sin(x) = 28/53

Sin(x)= 0.5283018868

So to find x just do Sin^-1

x = Sin^-1 (0.5283018868)

you get 31.8907918, ok so we just want the nearest degree and if we do that we get 32˚

if you put them into your calculator you will get 32˚ as your answer

5 0
3 years ago
PICKING BRAINLIEST ANSWER!!!!!!!!!!  Which graph shows a dilation?
Nataliya [291]

Answer:

The last graph.

Step-by-step explanation:

In the first graph, the darker triangle has one side that is 1/3 of the corresponding side of the other triangle, and one side that is 2/5 of the corresponding side of the other triangle.  This is not proportional for all sides, so this is not a dilation.

In the second graph, the darker triangle has one side that is 1/2 of the corresponding side of the other triangle, and one side that is 3/5 of the corresponding side of the other triangle.  This is not proportional for all sides, so this is not a dilation.

In the third graph, the darker triangle has one side that is 1/3 of the corresponding side of the other triangle, and one side that is 1/2 of the corresponding side of the other triangle.  This is not proportional for all sides, so this is not a dilation.

In the fourth graph, the darker triangle has one side that is 2/3 of the corresponding side of he other triangle, and another side that is 4/6=2/3 of the corresponding side of the other triangle.  Since these are both right triangles, this means the other side, the hypotenuse, will have the same ratio.  Since it is proportional for all sides, this is a dilation.

3 0
3 years ago
Read 2 more answers
How many real number solutoins does the equation have? -8x^2 + 8x - 2 = 0
Yanka [14]

Answer:

one

Step-by-step explanation:

for general form : ax²+bx+c=0

delta = b²-4ac

so for this example delta is 8²-4×2×8 =0

we know if delta = 0 , we have just one real number solution

so the answer is 1

4 0
3 years ago
Simplify:<br> 9x² - 4x - 3= [?]<br> X=-2
Bess [88]

Answer:

41

Step-by-step explanation:

Given x = -2,

Substitute x into the expression.9x^{2} -4x-3=9(-2)^{2} -4(-2)-3\\= 9(4)-4(-2)-3\\= 36+8-3\\=44-3\\=41

4 0
2 years ago
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