Mathematics College

which system of equations has only one solution?

Answers

Answer 1

Answer:

I think its the first one

Step-by-step explanation:

4x + 2y = 8

--4x - 2y = 3

I hope this is right

Related Questions

177 is what percent of 300? Round your answer to the nearest tenths.

Answers

Answer: 59%

Step-by-step explanation:

Hope this helps have a great day. :)

Answer:

59%

Step-by-step explanation:

I would solve this through proportions

177 x

300 100

Cross multiply

177 x 100 = 17700

And then divide

17700/300 = 59

The answer is 59%

A light bulb manufacturing process results in 6% of the light
bulbs being defective. If 5 light bulbs are randomly
selected, find the probability that all of the light bulbs are
fully functioning.

Answers

Answer:

[tex]Probability = 0.734[/tex]

Step-by-step explanation:

Given

Represent the event that a bulb is defective with p.

So:

[tex]p =6\%[/tex]

Required

Determine the probability that all 5 are fully functioning

Represent the event that a bulb is defective with q.

So:

[tex]p + q = 1[/tex]

Make q the subject

[tex]q = 1 - p[/tex]

Substitute 6% for p

[tex]q = 1 - 6\%[/tex]

Convert % to decimal

[tex]q = 1 - 0.06[/tex]

[tex]q = 0.94[/tex]

If 5 were selected and all are functioning, the event is represented as: q q q q q

And the probability is:

[tex]Probability = q * q * q * q *q[/tex]

[tex]Probability = q^5[/tex]

Substitute 0.94 for q

[tex]Probability = 0.94^5[/tex]

[tex]Probability = 0.7339040224[/tex]

[tex]Probability = 0.734[/tex] --- approximated

A batter hits a baseball 3 ft above the ground toward the center field fence, which is 10 ft high and 400 ft from home plate. The ball leaves the bat with speed at an angle above the horizontal. Is it a home run

Answers

Complete Question

A batter hits a baseball 3 ft above the ground toward the center field fence, which is 10 ft high and 400 ft from home plate. The ball leaves the bat with speed at 115 an angle 50 above the horizontal. Is it a home run?

Answer:

[tex]t=5.40sec[/tex]

Step-by-step explanation:

From the question we are told that

Height on hit [tex]H_h=3ft[/tex]

Height of center field fence [tex]H_f=10ft[/tex]

Distance from home plate [tex]D=400ft[/tex]

Initial speed [tex]v_0=115[/tex]

Angle [tex]\theta=50[/tex]

Generally the Parametric equation of the trajectory of a projectile are mathematically represented as

[tex]x=(v_0cos\theta )t[/tex]

[tex]y=(v_0sin\theta )t-\frac{1}{2} gt^2[/tex]

Therefore

[tex]x=(v_0cos\theta )t[/tex]

[tex]x=(115cos50\textdegree )t[/tex]

[tex]x=74t[/tex]

[tex]y=(v_0sin\theta )t-\frac{1}{2} gt^2[/tex]

Initial co_ordinates (0,3)

[tex]y=3+(115sin50\textdegree )t-\frac{1}{2} 32t^2[/tex]

[tex]y=3+88t-16t^2[/tex]

Generally its a home run when Y>10 and x=400

Time when x=400 is

[tex]t=\frac{400}{74}[/tex]

[tex]t=5.40sec[/tex]

PLEASE ANSWER ILL GIVE 50 POINTS AND BRAINLIEST!!!!!

Answers

the answer is 19/14x + 97/56 :)

Answer:

19/14x + 97/56

What is the multiplicative rate of change of the
function?

Answers

Answer:

the multiplicative rate of change for the exponential change is 3

Step-by-step explanation:

Tell whether the product of Prxs and Q5x3 is defined. If so, give the dimensions of PQ.

undefined
defined; 7 x3
defined; 3 x 7
defined; 5 x 5

Cameron wanted to get both lines with one zap. They solved an equation to find the intersection point and figured out that x=10. How could Cameron find the y-value of the point of intersection?

Answers

Is there a graph with this?

Lily and violet live 30 miles apart on a trail. They both start running towards each other with a plan to meet. Lily is moving at 4 miles per hour while violet runs 6 miles per hour. How long does it take for them to meet?

Answers

Answer:

3 hours

Step-by-step explanation:

why wasn't i doing this sooner :)

Answers

Step-by-step explanation:

Morning is 4 hr 15 min

afternoon is 4 hour 15 min

together is 8 hour 30 min

8.5*14 = 119 dollars

According to the unitary method, the wage of the weekly time for the employee is written as $119.00

To calculate the hours worked on Monday, we need to consider both the morning and afternoon shifts. For the morning shift, the employee clocked in at 08:00 AM and clocked out at 12:15 PM. The total time worked in the morning is 4 hours and 15 minutes (12:15 - 08:00).

Similarly, for the afternoon shift, the employee clocked in at 01:00 PM and clocked out at 05:15 PM. The total time worked in the afternoon is 4 hours and 15 minutes (05:15 - 01:00).

Adding both morning and afternoon hours, the total hours worked on Monday is

(4 hours 15 minutes + 4 hours 15 minutes) = 8 hours and 30 minutes

To perform the calculation, we need to convert the minutes to decimal hours. There are 60 minutes in an hour, so we divide the minutes by 60 to get the decimal representation. In this case, 30 minutes is equal to 0.5 hours.

Now that we have the total hours worked on Monday, we can calculate the pay. We multiply the total hours worked by the hourly wage. In this case, the hourly wage is $14/hr.

So, the pay for Monday would be:

Pay = Total hours worked x Hourly wage

Pay = 8.5 hours x $14/hr = $119.00

To know more about wage here

https://brainly.com/question/32552927

#SPJ2

Teddy makes 32 fluid ounces of hot cocoa. He pours equal amounts of cocoa into 5 cups. The amount of hot cocoa in each cup will fall between which two amounts?
A. 3 and 4 fluid ounces
B. 4 and 5 fluid ounces
C. 5 and 6 fluid ounces
D. 6 and 7 fluid ounces

Answers

D. 6 and 7 fluid ounces

32/5=6.4

What is the sum of
1
8
+
5
16
+
3
8
?

A.
9
32
B.
13
32
C.
9
16
D.
13
16

Answers

Answer:

18 + 516 + 38 = 572

Answer:

0.8125 =13/16

Step-by-step explanation:

1/8 +5/16 +3/8= 0.8125

0.8125 as a fraction is 13/16

Solve the equation 18t – 8 = 1 for t.

A. 1/6
B. 1/4
C. 1/2
D. 2

Answers

Answer:T=1/2

Step-by-step explanation: brainlyist

Could anybody help me with this ‍♀️

Answers

Answer:

For A), put a dot at -2, 7, -5, and 1 on the number line.

For B=), put a dot at 9, -4, 3, and -8.

Step-by-step explanation:

The scale on a map is
1 inch
250 miles
On the map, the distance from Nashville, TN to Los Angeles, CA is 8.02 inches.
What is the actual distance from Nashville to Los Angeles?

Answers

Answer:

2005 miles from Nashville to Los Angeles

Step-by-step explanation:

1 250 x 8 = 2000

0.02 is equal to 2%

2% of 250 is

well 1% of 250 is 2.50 multiplied by two that's 5

Find the surface area of the pyramid. The side lengths of the base are equal.

1: 20 sq. meters

2: 36 sq. meters

3: 20 meters

4: 36 meters

Answers

Answer:

God Loves you

Step-by-step explanation:

Because he died for you. "John 3,16"

Arthur has been challenged to donate $50,000. He decides to donate exactly 50% of the money every day until less than $1 remains. Write a function that would represent this situation.

Answers

Answer:(-1/2^x)(50000)

Step-by-step explanation:

20 pts for free ig I'd just need an awnser

Answers

Answer:

Step-by-step explanation:

4 : 7 = 2 : 3.5, not 2 : 3

Answer:

Step-by-step explanation:

4/2=2

2 x 2 = 4

3 x 2 = 6

4:7 and 4:6 is not equal.

Pls help I’ll brainlest for the right answer

Answers

Answer:

5.9+z=−9

Step 1: Simplify both sides of the equation.

z+5.9=−9

Step 2: Subtract 5.9 from both sides.

z+5.9−5.9=−9−5.9

z=−14.9

Answer:

z=−14.9

Step-by-step explanation:

I hope this can help!!!

For every 1000 hits a channel gets it makes £2.50 from ad revenue.
How many hits will the channel need to make £1

Answers

The channel will need 400 hits to make £1

The seller of a watch marked up the price by 30%, and the new price is $468.00. What was the watch’s original price before the markup?

Answers

Answer: I THINK SO 608.4

HOPE THIS HELPS

An airplane is heading due south with an airspeed of 196 miles per hour (mph). A wind from a direction of
N 58°E is blowing at 14 mph. Determine the bearing of the airplane by computing the magnitude and
direction of the resultant vector. Round the angle to the nearest degree.
(A)S 88°W
(B) S 87W
(C)S 2º W
(D)S 3W

Answers

Answer:

Step-by-step explanation:

1 and 1/2 divided by 4 and 2/8

Answers

Answer:

1.375

Step-by-step explanation:

Answer: 11/2

Step-by-step explanation:

144 ÷ a = 16
Find the value of a.

Answers

9
16x9 equals 144 so 144/9 would be 16

Answer:

Step-by-step explanation:

Move the variable to the other side of the equation

144 ÷ 16 = a

9 = a

Check:

144 ÷ a = 16 (Correct)

Which of the following does NOT represent a function?

Answers

Answer:

the last one

Answer:

i think its the first one

Step-by-step explanation:

If 7(p + 3) = – 28, then p = ? F. 4 G. 1 H. – 1 J. – 4 K. – 7

Answers

The answer to this problem will be -7

13.5 x 12.1 what does it equal

Answers

Answer:

163.35

Step-by-step explanation:

13.5 x 12.1 = 163.35

I NEED HELP ASAP
Darwin says that two expressions 3x + 4(2x + 5) and 6x + 5x + 5 are equivalent. Simplify the expressions to determine whether or not Darwin is correct.

Answers

Answer:

Darwin is not correct.

Step-by-step explanation:

3x+4(2x+5) = 6x+5x+5

3x+8x+20 = 11x + 5

11x+20 ≠ 11x+5

Which of the following is a linear function?

y = x^3 + 1
five over six x = y − 4
y = 8x^2
y = one over five x

Answers

Answer:

Which of the following is a linear function?

y = x^3 + 1(5/6)x = y − 4y = 8x^2y =(1/5)x

2. (5/6)x = y − 4 and 4. y =(1/5)x are the right answers.

Step-by-step explanation:

Linear function is in the form y=ax+b.

Help on No. 5 plz.........

Answers

X ~ 17.5 y ~ 19.2 because it is and they’re congruent so just find the multiplier

If there is 60 runners and they each get 8 oz of water how many pounds of water do they get total

Answers

If you multiple the numbers together...you will get the answer....480 pounds of water in total

What’s the function and domain and range. (1, -2) (-2, 0) (-1, 2) (1, 3)

Answers

Answer: Domain:

{

−

}

{

}

Range:

{

−

}

Step-by-step explanation: The domain is the set of all the values of

. The range is the set of all the values of

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