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Ivahew [28]
4 years ago
6

Hey, I can’t afford a graphing calculator so, does anyone know any good online ones?

Mathematics
1 answer:
Bess [88]4 years ago
5 0
Desmos is a good one...
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Which pair of segments in the figures below are congruent
madam [21]

Answer:

1 and 2

Step-by-step explanation:

5 0
4 years ago
A manufacturer of banana chips would like to know whether its bag filling machine works correctly at the 447.0 gram setting. It
Igoryamba

Answer:

A manufacturer of banana chips would like to know whether its bag filling machine works correctly at the 447.0 gram setting.

So, Null hypothesis : H_0:\mu =447

It is believed that the machine is under filling the bags

So, Alternate hypothesis : H_a:\mu

n = 41

Population standard deviation = \sigma = 21

x = 443

We will use z test since n > 30 and we are given the population standard deviation.

Formula : z=\frac{x-\mu}{\frac{\sigma}{\sqrt{n}}}

z=\frac{443-447}{\frac{21}{\sqrt{41}}}

z=-1.2196

Use z table to find p value

p value = 0.1131

α = 0.02

p value > α

So, we fail to reject null hypothesis.

So, its bag filling machine works correctly at the 447.0 gram setting.

4 0
3 years ago
What is the area of this trapezoid?
Oksi-84 [34.3K]

Answer:

The answer is option b 130cm²

Area of a trapezium is 1/2(a + b) × h

where 'a' and 'b' are the parallel sides of the trapezium

h is the height

From the picture above

h is 10cm

'a' and 'b' are 17cm and 9 cm respectively

Area of the trapezium = 1/2 ( 17+9)× 10

= 1/2× 26 × 10

= 13 × 10

= 130cm²

Hope this helps

7 0
3 years ago
Read 2 more answers
the coordinates of point t are (0, 6) the midpoint of line st is (2, 5) what are the coordinates of point s
tankabanditka [31]

The coordinates of S would be (4, 4)

In order to find this, we need to know that the value of midpoint (M) points will always be the average of S and T's points. This is because it is the midpoint. Therefore we can use the following formula.

Value of x

(S + T)/2 = M

(S + 0)/2 = 2

S + 0 = 4

S = 4

Then we can do the same for the y values

Value of y

(S + T)/2 = M

(S + 6)/2 = 5

S + 6 = 10

S = 4

7 0
4 years ago
Find the product of<br><br>(1 + sinA) (1 + sinA) (1 + sinA)<br><br>helppp<br>​
katovenus [111]

Answer:

1 + 3sinA + 3sin²A + sin³A

Step-by-step explanation:

Given

(1 + sinA)(1 + sinA)(1 + sinA) ← expand the last pair using FOIL

= (1 + sinA)(1 + 2sinA + sin²A) ← distribute

= 1 + 2sinA + sin²A + sinA + 2sin²A + sin³A ← collect like terms

= 1 + 3sinA + 3sin²A + sin³A

8 0
3 years ago
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