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3 years ago

Use the sketch tool to mark the picture with the given information. Then choose what postulate prices the triangles congruent.

Mathematics

1 answer:

Fynjy0 [20]3 years ago

3 0

use the sketch tool to mark the picture with the given information. Then choose what postulate prices the triangles congruent.

(a) HL

(b) SAS

(d) SSS

(e) ASA

Answer: a

Step-by-step explanation:

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What values of x and y satisfy the system of equations {10x+3y=−5−5x−4y=10? (0,−53) (25,−3) (−2,0) (12,−103)

Kitty [74]

Answer:

The solution of the equation

( 0.4 ,-3)

Step-by-step explanation:

Explanation:-

Step(i):-

Given system of equations

10 x+3 y = −5 ...(i)

- 5 x - 4 y = 10 ...(ii)

Multiply (i) with '5'

10 × 5 x + 3×5 y = - 25

50 x + 15 y = 25 ...(iii)

Multiply (ii) with '10'

-5 × 10 x - 4×1 0 y = 100

- 50 x - 40 y =100 ...(iv)

Step(ii):-

Solving (iii) and (iv)

50 x + 15 y =- 25

- 50 x - 40 y =100

- 25 y = 75

Dividing ' - 25' on both sides, we get

y = -3

substitute y = -3 in equation (i) , we get

10 x+3 y = −5

10 x - 9 = - 5

10 x = -5 + 9

$x = \frac{4}{10}$

x = 0.4

Final answer:-

The solution of the equation ( 0.4 ,-3)

7 0

3 years ago

Need help with this question

Alenkasestr [34]

Answer: Well you would have to look at the options in the drop down and then find the terms and others

Step-by-step explanation:

8 0

2 years ago

An insurance company selected samples of clients under 18 years of age and over 18 and recorded the number of accidents they had

Stolb23 [73]

Answer:

Q1 z(s) is in the rejection region for H₀ ; we reject H₀. We can´t support the that means have no difference

Q2 CI 95 % = ( 0,056 ; 0,164 )

Step-by-step explanation:

Sample information for people under 18

n₁ = 500

x₁ = 180

p₁ = 180/ 500 p₁ = 0,36 then q₁ = 1 - p₁ q₁ = 0,64

Sample information for people over 18

n₂ = 600

x₂ = 150

p₂ = 150 / 600 p₂ = 0,25 then q₂ = 1 - p₂ q₂ = 1 - 0,25 q₂ = 0,75

Hypothesis Test

Null hypothesis H₀ p₁ = p₂

Alternative Hypothesis Hₐ p₁ ≠ p₂

The alternative hypothesis indicates that the test is a two-tail test.

We will use the approximation to normal distribution of the binomial distribution according to the sizes of both samples.

Testin at CI = 95 % significance level is α = 5 % α = 0,05 and

α/ 2 = 0,025 z (c) for that α is from z-table:

z(c) = 1,96

To calculate z(s)

z(s) = ( p₁ - p₂ ) / EED

EED = √(p₁*q₁)n₁ + (p₂*q₂)/n₂

EED = √( 0,36*0.64)/500 + (0,25*0,75)/600

EED = √0,00046 + 0,0003125

EED = 0,028

( p₁ - p₂ ) = 0,36 - 0,25 = 0,11

Then

z(s) = 0,11 / 0,028

z(s) = 3,93

Comparing z(s) and z (c) z(s) > z(c)

z(s) is in the rejection region for H₀ ; we reject H₀. We can´t support the idea of equals means

Q2 CI 95 % = ( p₁ - p₂ ) ± z(c) * EED

CI 95% = ( 0,11 ± 1,96 * 0,028 )

CI 95% = ( 0,11 ± 0,054 )

CI 95 % = ( 0,056 ; 0,164 )

8 0

2 years ago

The stem-and-leaf plot shows test scores for students in Math 7. How many students earned more than a 65 on their test? Key 4|5

Nadya [2.5K]

the answer is b

Step-by-step explanation:

hope this helps if not let me know have a blessed day

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1 year ago

Which function has a minimum and is transformed to the right and down from the parent function, f(x) = x2?

katovenus [111]

G(x)=8(x2-6x)-5 its positive and it goes down.

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3 years ago

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