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lora16 [44]
3 years ago
8

PLEASE HELP could this be 110, maybe?? I've tried both 40 and 100 already.​

Mathematics
2 answers:
Firdavs [7]3 years ago
3 0
180-70-30=80
The answer is 80
The two triangles are the same.
Corresponding angles of congruent triangles are equal.
A triangle's three angles add up to 180 degrees.
pickupchik [31]3 years ago
3 0

Answer:

80°

Step-by-step explanation:

<A+<B+<C=180

30+<B+70=180

100+<B=180

<B=180-100

= 80

consider triangle ABC and triangle EDC

AC=CE (given

BC=CD (given

<ACB=<ECD (vertically opposite angles are equal)

therefore triangle ABC is congruent to triangle EDC

<B=<D (CPCT)

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Si un buzo se sumerge 4 metros luego sube 2 metros y finalmente desciende 5 metros más, ¿a qué profundidad se encuentra al final
wolverine [178]

Así, concluimos que la posición final del buzo será 7 metros bajo la superficie del agua.

<h3 /><h3>¿a qué profundidad se encuentra al final de su recorrido?</h3>

Primero, vamos a definir la superficie del agua como el 0 metros.

Sí sabemos que primero el buzo se sumerge 4 metros, entonces en este punto la posición del buzo es:

P = 0m - 4m = -4m

Luego el buzo sube 2 metros, entonces la nueva posición será:

P = -4m + 2m = -2m

Finalmente, el buzo desciende otros 5 metros, entonces la posición final del buzo será:

P = -2m - 5m = -7m

Así, concluimos que la posición final del buzo será 7 metros bajo la superficie del agua.

Sí quieres aprender mas sobre posiciones:

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7 0
2 years ago
jim’s percentile rank in a class of 50 students was the 92nd. what was his rank in the class (1st = best, 2nd = second best, etc
dezoksy [38]
Jim is ranked third best in his class of 50 students.
4 0
3 years ago
Solve (4)-6(9•-2)<br><br> A.89<br> B.200<br> *C.122<br> D.97
Grace [21]
You are correct C. is the answer.
4 0
3 years ago
F(x) = x^2 - 3x+ 5 g(x) = 2x^2 - 4x - 11 what is h(x) = f(x) + g(x)
iogann1982 [59]

Hey there! :)

Answer:

h(x) = 3x² - 7x - 6

Step-by-step explanation:

Calculate h(x) by adding the two polynomials:

h(x) = f(x) + g(x):

h(x) = x² - 3x + 5 + 2x² - 4x - 11

Combine like terms:

h(x) = 3x² - 7x - 6

5 0
3 years ago
Read 2 more answers
A zoo keeper used 15 bags of acacia leaves to feed the giraffes and 8 bags of eucalyptus leaves to feed the koalas. Write a rati
8090 [49]

Answer: 15:8

Step-by-step explanation:

Acacia leaves= 15 bags

Eucalyptus leaves=8 bags

A ratio compares two amounts and uses a :

We are comparing acacia leaves bags to eucalyptus leaves bags

So-

15:8

We cannot simplify any more, so keep 15:8.

4 0
3 years ago
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