Help me! My teacher suckkkkkkks

LenKa [72]

Sin60 =b/10
<span>√3/2 = b/10
</span>b = <span>√3 / 2 (10)
</span>b = 5<span>√3
</span>
d^2 = 10^2 - (5√3)^2
d^2 = 100 - 75
d^2 = 25
d = 5

sin30 = b/a
1/2 = 5√3 / a

a = 5√3 (2)
a = 10√3

c^2 = (10√3)^2 - (5√3)^2
c^2 = 300 - 75
c^2 = 225
c = 15

so
a =10√3, b = 5√3, c = 15,d = 5
answer is
D. last choice

4 0

4 years ago

There are 12 peaches and 8 bananas in a fruit basket. You get a snack for yourself and three of your friends by choosing of the

muminat

Answer:

10.2% chance

Step-by-step explanation:

There are 12 peaches and 8 bananas for a total of 20 pieces of fruit.

So we can write it:

$\frac{12}{20} * \frac{11}{19} * \frac{10}{18} * \frac{9}{17}$ = $\frac{11880}{116,280}$ = .102 or 10.2% chance

For ease multiply all numerators (top numbers) together, then multiply the denominators (bottom numbers) together, and then divide.

12 * 11 * 10 * 9 = 11880

20 * 19 * 18 * 17 = 116,280

We start with 12 peaches and 20 total fruit, as we select a peach the number of peaches and total fruit goes down by one. We do this 4 times because you draw 4 fruits. If you select 1 fruit your chances of it being a peach are 12/20, each time you select a fruit the chances of it being a peach go down because you have 1 less total fruit, and 1 less peach. This is why you multiply each probability together.

6 0

3 years ago

The red square is the image of the blue square after a SINGLE transformation. Use two or more complete sentences to describe eac

Leni [432]

The transformations which can lead to the red square image of the blue Square are; Translation, Reflection, Rotation.

<h3>What transformations lead to the image?</h3>

Translation is when we slide a figure in any direction. The translation of the shape can be by moving the blue leftward or rightward and the then downward.
Reflection is when we flip a figure over a line. The reflection involves reflect the blue Square over the line; y = x.
Rotation is when we rotate a figure a certain degree around a point. The rotation is by rotating the blue Square over 180⁰.

Read more on transformations;

brainly.com/question/4289712

5 0

2 years ago

17 = 1ly + 12x<br>12x + 1ly = 14

Nezavi [6.7K]

What am i supposed to be anawering here? as a function of x or y? solving for x or y or simply writing in mx+b form?

7 0

3 years ago

Translate into an algebraic expression and simplify if possible. C It would take Maya x minutes to rake the leaves and Carla y m

lina2011 [118]

Answer:

in one minute they rake $\frac{y+x}{xy}$ leaves working together.

Step-by-step explanation:

If Maya rakes the leaves in x minutes, then, in one minute she rakes $\frac{1}{x}$ leaves.

In the case of Carla, if she rakes the leaves in y minutes, in one minute she rakes $\frac{1}{y}$ leaves.

Therefore, to know the portion of leaves they can rake in one minute working together, we need to sum up both of the portions each one of them rake in one minute, this gives us: $\frac{1}{x}+ \frac{1}{y}$

Now, to simplify this expression:

$\frac{1}{x}+ \frac{1}{y} =\frac{y+x}{xy}$

Thus, in one minute they rake $\frac{y+x}{xy}$ leaves.

8 0

3 years ago