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3 years ago

Answer these questions in order

Mathematics

1 answer:

mash [69]3 years ago

4 0

1)-6/4x+4

2)-5/3x

3)3x+2

4)3/2x+3

5)0x-1

6)1/2x+2

7)3x+4

8)-1/3x

I added some guides for you to know how to do this.

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Been waiting for half an hour pls help me

Stella [2.4K]

Answer:

13.7 cm

Step-by-step explanation:

there are 360° in a circle and in this image, we can see 90°+90°+66.4°=260.4
since we know that 360°-260.4°=99.6°
The angle measure of arc AD is 99.6°

Now that we covered that, we can use the arc length formula in order to find the length of arc AD.

arc length = 2πr(Θ/360°)
2π(7.9)(99.6°/360°) = 13.7329
rounded to the nearest tenth = 13.7

3 0

3 years ago

At Marie's Book and Music Store, 7/20 of the sales come from

Vladimir79 [104]

The fraction would be 16/20

8 0

3 years ago

6. A line passes through the points (-2,5) and (6,9). Calculate the gradient of this line.

Mumz [18]

Answer:

d 2.5 line is 6.9 which is 9.4

Step-by-step explanation:

because

7 0

3 years ago

Which statements are true? All parallelograms are rhombuses. All rectangles are squares. All rectangles are parallelograms. All

Simora [160]

Answer:

Step-by-step explanation:

4 0

2 years ago

Read 2 more answers

The weights of certain machine components are normally distributed with a mean of 8.04 g and a standard deviation of 0.08 g. Fin

NISA [10]

Answer:

The bottom 3 is separated by weight 7.8896 g and the top 3 is separated by weight 8.1904 g.

Step-by-step explanation:

We are given that

Mean, $\mu=8.04 g$

Standard deviation, $\sigma=0.08g$

We have to find the two weights that separate the top 3% and the bottom 3%.

Let x be the weight of machine components

$P(Xx_2)=0.03$

$P(X$

=0.03

From z- table we get

$P(Z1.88)=0.03$

Therefore, we get

$\frac{x_1-8.04}{0.08}=-1.88$

$x_1-8.04=-1.88\times 0.08$

$x_1=-1.88\times 0.08+8.04$

$x_1=7.8896$

$\frac{x_2-8.04}{0.08}=1.88$

$x_2=1.88\times 0.08+8.04$

$x_2=8.1904$

Hence, the bottom 3 is separated by weight 7.8896 g and the top 3 is separated by weight 8.1904 g.

5 0

3 years ago