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2 years ago

Work out the size of angle a AB = 11cm AC = 9cm

Mathematics

1 answer:

Papessa [141]2 years ago

8 0

Step-by-step explanation:

simply use trig ( cos)

so cosx°= 9/11

now do cos^-1 x°(9/11) in a calculator to find the value of the angle

that will result in 35.09°

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Se necesita comprar 85 saleros para su restaurante. Si los saleros vienen empacados en presentaciones de 2,3 y 5 unidades, cual

Pepsi [2]

Responder:

Explicación paso a paso:

Dado que:

Número requerido de compra = 85

Unidades de paquete disponibles = 2, 3, 5

En su para comprar la cantidad exacta 85 de Saleros; la unidad de paquete a elegir debe ser;

Uno que es un factor de 85

Factores de 85: 1, 5, 17 y 85.

Por lo tanto, de las unidades de paquete disponibles disponibles, solo 5 es un factor de 85 y, por lo tanto, dará el número exacto de saleros necesarios.

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3 years ago

In circle N with m<br> See diagram below

Alex777 [14]

Answer:

$113.10$

Step-by-step explanation:

The area of a sector with measure $\theta$ and radius $r$ is given by $A_{sec}=r^2\pi\cdot \frac{\theta}{360^{\circ}}$ .

What we're given:

$r$ of 12
$\theta$ of $90^{\circ}$

Substituting given values, we get:

$A_{sec}=12^2\pi\cdot \frac{90}{360},\\\\A_{sec}=144\pi\cdot \frac{1}{4},\\\\A_{sec}\approx \boxed{113.10}$

8 0

2 years ago

95 out of 1200 randomly selected people surveyed in the u.s said they would rather watch baseball on television than go to a gam

Brums [2.3K]

Answer:

C.) go to a baseball game than watch it on television

Step-by-step explanation:

Only 7.9% of the 1200 people would rather watch a game on television than go to a game.

<em>That means 92% of the group would rather go to a game, instead of watching it on television.</em>

Your answer should be letter C, most people would rather go to a baseball game than watch it on television

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3 years ago

X + 2y = 5

Dafna11 [192]

B. 2
if any other number was in there i dont think it would work because its neg

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3 years ago

Read 2 more answers

Grasshoppers are distributed at random in a large field according to a Poisson process with parameter a 5 2 per square yard. How

HACTEHA [7]

In this question, the Poisson distribution is used.

Poisson distribution:

In a Poisson distribution, the probability that X represents the number of successes of a random variable is given by the following formula:

$P(X = x) = \frac{e^{-\mu}*\mu^{x}}{(x)!}$

In which

x is the number of sucesses

e = 2.71828 is the Euler number

$\mu$ is the mean in the given interval.

Parameter of 5.2 per square yard:

This means that $\mu = 5.2r$ , in which r is the radius.

How large should the radius R of a circular sampling region be taken so that the probability of finding at least one in the region equals 0.99?

We want:

$P(X \geq 1) = 1 - P(X = 0) = 0.99$

Thus:

$P(X = 0) = 1 - 0.99 = 0.01$

We have that:

$P(X = x) = \frac{e^{-\mu}*\mu^{x}}{(x)!}$

$P(X = 0) = \frac{e^{-5.2r}*(5.2r)^{0}}{(0)!} = e^{-5.2r}$

Then

$e^{-5.2r} = 0.01$

$\ln{e^{-5.2r}} = \ln{0.01}$

$-5.2r = \ln{0.01}$

$r = -\frac{\ln{0.01}}{5.2}$

$r = 0.89$

Thus, the radius should be of at least 0.89.

Another example of a Poisson distribution is found at brainly.com/question/24098004

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2 years ago