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Leona [35]
3 years ago
15

If A(x,1),B(-3,7), C(-5,9), and D(5,4) find the value of x so that AB||CD

Mathematics
1 answer:
Mashutka [201]3 years ago
3 0
I’m not sure sorryyyy hope someone helps
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How can solve this ???
poizon [28]

Answer: $11,808

<u>Step-by-step explanation:</u>

2011 - 1995 = 16

418t + 5120

= 418(16) + 5120

= 6688 + 5120

= 11,808


5 0
3 years ago
The Volunteer Club raked leaves at several senior citizens’ homes in the neighborhood. If each group of three students could rem
ozzi

12 students would create 4 groups, if they get 8 cubic meters per hour and they have 5 hours, the equasion would look like: (8*5)*4)=160. They would clear 160 cubic meters in 5 hours.

7 0
3 years ago
Two 5-year girls, Alyse and Jocelyn, have been training to run a 1-mile race. Alyse's 1 mile time A is approximately Normally di
tatyana61 [14]

Answer:

1.7 × 10⁻⁴

Step-by-step explanation:

The question relates to a two sample z-test for the comparison between the means of the two samples  

The null hypothesis is H₀:  μ₁ ≤ μ₂

The alternative hypothesis is Hₐ: μ₁ > μ₂

z=\dfrac{(\bar{x}_1-\bar{x}_2)-(\mu_{1}-\mu _{2} )}{\sqrt{\dfrac{\sigma_{1}^{2} }{n_{1}}-\dfrac{\sigma _{2}^{2}}{n_{2}}}}

Where;

\bar {x}_1 = 13.5

\bar {x}_2 = 12

σ₁ = 2.5

σ₂ = 1.5

We set our α level at 0.05

Therefore, our critical z = ± 1.96

For n₁ = n₂ = 23, we have;

z=\dfrac{(13.5-12)-(0)}{\sqrt{\dfrac{2.5^{2} }{23}-\dfrac{1.5^{2}}{23}}} = 3.5969

We reject the null hypothesis at α = 0.05, as our z-value, 3.5969 is larger than the critical z, 1.96 or mathematically, since 3.5969 > 1.96

Therefore, there is enough statistical evidence to suggest that Alyse time is larger than Jocelyn in a 1 mile race on a randomly select day and the probability that Alyse has a larger time than Jocelyn is 0.99983

Therefore;

The probability that Alyse has a smaller time than Jocelyn is 1 - 0.99983 = 0.00017 = 1.7 × 10⁻⁴.

8 0
3 years ago
Write all pairs of numbers satisfying the equation <br> x2 + y2 =5 and x2 + y2= 25
lorasvet [3.4K]

Answer:

There is no solution for this set of equations.

The sum of two numbers can not have two different solutions.

6 0
3 years ago
Which ordered pair is a solution of the equation? 5x-2y=18
irakobra [83]

Answer:

(2, -4)

Step-by-step explanation:

I did some research.

Plz click the Thanks button!

<Jayla>

3 0
2 years ago
Read 2 more answers
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