1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
konstantin123 [22]
3 years ago
15

Determine all values of h and k for which the system S 1 -3x - 3y = h -4x + ky = 10 has no solution. k= ht

Mathematics
1 answer:
Lana71 [14]3 years ago
7 0

Answer:

h\neq 7.5

k = -4

Step-by-step explanation:

Given system of equations are,

-3x-3y = h

-4x + ky = 10

We have to find the values of h and k such that system of equations has no solution.

The standard form of system of equation in two variables can be given by,

a_1x+b_1y+c_1=0

a_2x+b_2y+c_2=0

And condition for the system of equations has no solution is given by,

\dfrac{a_1}{a_2}=\dfrac{b_1}{b_2}\neq \dfrac{c_1}{c_2}

So, by comparing the standard form of equations with given equations, the condition such that system has no solution can be written as,

\dfrac{-3}{-4}=\dfrac{-3}{k}\neq \dfrac{h}{10}

=>\dfrac{-3}{-4}=\dfrac{-3}{k}

=> k = -4

and \dfrac{-3}{-4}\neq \dfrac{h}{10}

    =>\ \dfrac{-3\times 10}{-4}\neq h

    =>\ h\neq \dfrac{30}{4}

    =>\ h\neq 7.5

So, the value of h and k for above given system of equations is

h\neq 7.5 and k = -4.

You might be interested in
M∠1 = _°<br><br> A. 35<br> B. 50<br> C. 65
miss Akunina [59]
0.5(100-30) = 35

Hope this helps............
3 0
3 years ago
Read 2 more answers
Part A
Airida [17]

Answer:

A. 10 is less than or equal to 1.75+0.65m

B. D

Step-by-step explanation:

3 0
3 years ago
In ACDE, M C = 30° and mZE = 50°. In AFGH, m_G = 100° and m_H = 50°. Are the triangles congruent? If so,
vova2212 [387]

Answer:

No, triangles CDE and HGF are not necessarily congruent.

Step-by-step explanation:

Notice that just having one angle equal in value doesn't make the triangles congruent. To start with, we know that the three internal angles of a triangle must add up to 180 degrees, but all we know when one is 50 degrees, the other two must add up to 130 degrees, which can be done by an infinite number of different angle combinations: 110 + 20, 90 + 40, 80 + 50, etc.

8 0
3 years ago
Read 2 more answers
Which ratio is greater than<br> 5/8 <br> A 12/24 <br> B 3/4 <br> C 15/24 <br> D 4/12
valentina_108 [34]

Answer:

B) 3/4

Step-by-step explanation:

3/4 equals 6/8, which is greater than 5/8

8 0
3 years ago
Read 2 more answers
Traffic engineers studied the traffic patterns of two busy intersections on opposite sides of town at peak rush hour. At the fir
DiKsa [7]

Answer:

The standard deviation of the sum is of 8.06.

Step-by-step explanation:

When the distribution is normal, we use the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

Sum of normal variables:

When we add two normal variables, the mean is the sum of their means, and the standard deviation is the square root of the sum of their variances. In this question:

First intersection -> Standard deviation of 4

Second intersection -> Standard deviation of 7

Sum:

\sigma = \sqrt{4^2 + 7^2} = \sqrt{65} = 8.06

The standard deviation of the sum is of 8.06.

6 0
2 years ago
Other questions:
  • Estimate a 15% tip on a dinner bill of $31.81 by first rounding the bill amount to the nearest ten dollars
    11·1 answer
  • on a map a city block is a square with three of its vertices at (-4,1),(1,1),and(1,-4). what are the coordinates of the renaming
    11·1 answer
  • Simplify <br><br><br> 2−4÷2+2^3<br><br> Please help
    7·1 answer
  • Ratio of 34 inches to 1 foot
    12·1 answer
  • Andre makes a three-digit number.
    12·1 answer
  • The length of a rectangular garden is four times its width (w), plus 3 feet. Which expression represents the garden's length in
    15·1 answer
  • Help plsss.<br> everything is in their
    7·1 answer
  • Twenty-nine children went to a zoo to photograph some animals. The numbers of children who photographed Lions (L), Monkeys (M) a
    8·1 answer
  • I need help guys now na po ​
    8·1 answer
  • A cylinder and a cone both have radius of 6". The height of the cone is 12". The height of the cylinder is 6". Which has the gre
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!