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bija089 [108]
3 years ago
11

Please help me! I need help.

Mathematics
1 answer:
pashok25 [27]3 years ago
4 0

Answer:

a= 40

Step-by-step explanation:

you just add the other two angles , then subtract the number you get from 180 . this is so since every  triangle has to equal 180 . and the squares that you see equal 90 degrees .

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Ty and his 3 brothers share a pizza equally. Which of these shows how much of the pizza Ty's brothers have?
Yuki888 [10]

Answer:

3/4

Step-by-step explanation:

pizza is cut into fourths because there are for people eating it. the brothers have 3/4 of the pizza because there are only 3 brothers

7 0
3 years ago
Suppose a railroad rail is 3 kilometers and it expands on a hot day by 15 centimeters in length. Approximately how many meters w
earnstyle [38]

Answer:

Answer:  13.4 m

Step-by-step explanation:

For small angles, x, in radians,

tan(x) ≈ sin(x) = x

Use this to create an approximate diagram for the problem as shown in the figure below.

The actual deflected shape is parabolic, but it is approximated by an isosceles triangle with small equal angles.

The extend length is 3 km + 12 cm, which is 

3000 + 0.12 = 3000.12 m

Half of the extended length is 1500.06 m

Let h+  the rise of the center of the rail above ground.

From the Pythagorean theorem, obtain

h² + 1500² = 1500.6²

h² = 1500.06² - 1500² = 180.004

h = 13.4 m, which is about 0.9% of the original length.

Read more on Brainly.com - brainly.com/question/5596356#readmore

6 0
3 years ago
Solution set of 5/11x+1/3=3/7-6/11x+3/7
kirill115 [55]

\frac{5}{11x}  +  \frac{1}{3}  =  \frac{3}{7}  -  \frac{6}{11x}  +  \frac{3}{7}  \\  \frac{11}{11x}  =  \frac{6}{7}  -  \frac{1}{3}  \\  \frac{1}{x}  =  \frac{11}{21}  \\ x =  \frac{21}{11}  = 1 \frac{10}{11}

6 0
3 years ago
PLS HURRRRRRRYYYYY TYYY
Ede4ka [16]

Answer:

It's 15.70796. Won't go in-depth since time seems to be of the essence

Step-by-step explanation:

Won't go in-depth since time seems to be of the essence

8 0
2 years ago
The population mean score for a particular exam is 74 and the standard deviation is 9. What are the mean and standard deviation
Vaselesa [24]

Answer:

Step-by-step explanation:

7 0
3 years ago
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