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ahrayia [7]
2 years ago
9

Y = -2x - 4 y = 4x + 2

Mathematics
1 answer:
adoni [48]2 years ago
6 0

The value of x and y in the given equation  is determined -1 and -2 respectively.

<h3>Value of x and y</h3>

The value of x and y can be determined by solving the two equations simultaneously.

y = -2x - 4  ----- (1)

y = 4x + 2   ----- (2)

solve (1) and (2) together

-2x - 4 = 4x + 2

-6x = 6

x = -1

y = 4(-1) + 2

y = -4 + 2

y = -2

Learn more about equations here: brainly.com/question/2972832

#SPJ1

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. A man bought a car for $60 320. After using it for 2 years he decides to trade in the car. The company estimated a depreciatio
Veronika [31]

Answer:

(a) 39,208

(b) 65%

Step-by-step explanation:

(a) The car loses 10% the first year and 15% the second year so that’s 35% lost in total after two years.

35% of 60,320 is 21,112

60,320 - 21,112 = 39,208

39,208 ÷ 60,320 = 0.65 (65%)

8 0
3 years ago
During a sale, every item in a store is 80% of its regular price. The regular prices of five items are shown here find the sale
qwelly [4]

$55 this is shown by doing 80/100=0.80. and 0.80*55=this is the answer

6 0
3 years ago
(-12 + 9zy) - (x² + 6xy-8y^2)
svetlana [45]

Answer:−x2−6xy+8y2+9yz−12

3 0
3 years ago
Find the height of the trapezoid. A trapezoid. The base lengths are 10 meters and 6 meters. The area is 40 square meters.
Andrew [12]

Answer:

5 meters

Step-by-step explanation:

A=a+b/2*h

40=10+6/2*h

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7 0
3 years ago
Read 2 more answers
Several years ago, the mean height of women 20 years of age or older was 63.7 inches. Suppose that a random sample of 45 women w
VikaD [51]

Since the p - value is less than significance level . So, we will accept the null hypothesis.

​(a) State the appropriate null and alternative hypotheses to assess whether women are taller today.

Definition of null hypothesis : The null hypothesis attempts to show that no variation exists between variables or that a single variable is no different than its mean. it is denoted

Alternative Hypothesis : In statistical hypothesis testing, the alternative hypothesis is a position that states something is happening, a new theory is true instead of an old one (null hypothesis).

We are given that The mean height of women 20 years of age or older was 63.7 inches.

So, null hypothesis :  H₀ : μ = 63.7

Alternative Hypothesis :  H₁ : μ > 63.7

b)The​ P-value for this test is 0.06.

The p-value represents the probability of getting a sample mean height of 20 years old women is  64.1 inches.

c) Write a conclusion for this hypothesis test assuming an alpha equals 0.10 level of significance.

p- value = 0.06

Since the p - value is less .

So, we will accept the null hypothesis

So,  

Hence The mean height is 63.7 inches

To learn more about hypothesis testing from the given link

brainly.com/question/12976831

#SPJ4

7 0
1 year ago
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