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makkiz [27]
3 years ago
15

How many solutions does this system have?​

Mathematics
2 answers:
Andrew [12]3 years ago
8 0

That system has D. no solutions

faust18 [17]3 years ago
4 0

Answer: no solution

Step-by-step explanation:

Solve by substitution

Divide each term by 2 and simplify.

Replace all occurrences of y with the solution found by solving the last equation for y. In this case, the value substituted is 5x+1.

Solve for x in the second equation.

Since −1≠3, there are no solutions.

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a university is comparing the grade point averages of biology majors with grade point averages of engineering majors. the univer
Ronch [10]

Answer:

H0 : μEng = μBio

H1: μEng ≠ μBio

Step-by-step explanation:

μEng = Engineering average gpa

μBio = Biology average gpa

To test for difference between two sample means , in this case grade point average of biology majors and Engineering major.

Null hypothesis is the initial truth, which is that ; there is no difference in the mean grade point average of both biology and engineering majors

H0 : μEng = μBio

The Alternative hypothesis is the opposite of the null, which is stated has ; there is difference between the average GPA of both Engineering and Biology majors

H1: μEng ≠ μBio

7 0
3 years ago
Name the property of real numbers illustrated by the equation.
Julli [10]

Answer:

Distributive property

Step-by-step explanation:

The distributive property states a(b+c)=a*b+a*c. This property states that when you multiply more than one thing, you must be sure to multiply everything. When you order fast food combos, you do the distribution property to receive the correct order.

If I order 3 Happy Meals, then I will receive

3(hamburgers +fries + drinks +toys)

3 hamburgers+3 fries+3 drinks+3 toys.

If I don't, then I have broken the distribution property.

5 0
2 years ago
Identify the volume of a cone with base area 64π m2 and a height 4 m less than 3 times the radius, rounded to the nearest tenth.
melomori [17]
V=basearea times 1/3 times height
basearea=6<span>4π m2
hmm, they try to make it difficult

basearea=circle=pir^2
pir^2=64pi
divide by pi
r^2=64
sqrt
r=9

h is 4 les than 3 time r
h=-4+3(8)
h=-4+24
h=20

v=1/3*64pi*20=1280pi/3 m^3=1350.4

C
</span>
4 0
3 years ago
Which of the following are necessary when proving that the opposite angles of a parallelogram are congruent? Check all that appl
erma4kov [3.2K]
A. Corresponding parts of congruent triangles are congruent.
4 0
3 years ago
Read 2 more answers
90 POINTS: What is the slope of the line in the correct graph? What is the slope of the line in the incorrect graph? Are the slo
galben [10]

Answer:

Correct graph

slope \frac{(175 - 105)}{(9 - 2)}  \\  =  \frac{70}{7}  \\  = 10

Incorrect graph

slope =  \frac{(175 - 105)}{(8 - 2)}  \\  =  \frac{70}{6}  \\  = 11.7

Slopes are not the same

5 0
3 years ago
Read 2 more answers
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