Mathematics High School

State the number of solutions (One Solution, No Solution, or Infinitely Many) for each system
(2x + y = 2
2x + y = 8
(y = 3x - 7
7.
8.
9.
ly-2=-2x
3x + 5y = 5
y = 3x+2

State The Number Of Solutions (One Solution, No Solution, Or Infinitely Many) For Each System(2x + Y

Answers

Answer 1
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Related Questions

Solve using the order of operations. (9+9+72)-4+9

PLZ ANSWER PLZ HURRY​

Answers

Answer:

95

Step-by-step explanation:

The order of operations is PEMDAS

Equations in PARENTHESES come first

Numbers with EXPONENTS come second

MULTIPLICATION/DIVISION problems come next (depending on which comes first in the equation

ADDITION/SUBTRACTION comes last (again, depending on which comes first in the equation)

So we do (9+9+72) first

So that equals 90

And then we subtract 4 from 90

90 - 4 = 86

Then we add 9 to 86

86 + 9 = 95

Answer: 72 is the answer

Mount Whitney Trail starts at an elevation of 8,350 ft above sea level and ends at an elevation of 14,500 ft above sea level. The temperature changes by -5.4 F for every thousand feet gained in elevation. What is the change in temperature from the starting elevation to the ending elevation of Mount Whitney Trail?​

Answers

Answer:

I would think -32.4. - Tell me if I am wrong

Step-by-step explanation:

I hope this helps :)

In the diagram, which is not drawn to scale, DE | FG || BC.

Answers

Answer:

FG || BC.

Step-by-step explanation:

In the diagram, which is not drawn to scale, DE | FG || BC.

The measure of DA is 20 cm, the measure of EG is 12 cm and the measure of GC is 18 cm.

What is an equal intercept theorem?

The theorem states if a transversal makes equal intercepts on three or more parallel lines, then any other line cutting them will also make equal intercepts. It means that given any three mutually perpendicular lines, a line passing through them forms intercepts in the corresponding ratio of the distances between the lines.

Here, EG = GA - AE

= 36-24

= 12 cm

Here, ΔADE is similar to ΔAGF

Now, AE/GA = AD/FA

⇒ 24/36 = AD/(AD+10)

⇒ 24 (AD+10) = 36AD

⇒ 24AD+240 = 36AD

⇒ 12AD =240

⇒ AD =20 cm

Here, ΔAGF is similar to ΔABC

Now, 30/45 = 36/AC

⇒ 30AC = 36×45

⇒ AC = 54 cm

So, GC = 54-36 = 18 cm

Therefore, the measure of AD is 20 cm, the measure of EG is 12 cm and the measure of GC is 18 cm.

Learn more about the equal intercept theorem here:

https://brainly.com/question/10235816.

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If the velocity of a car is 45 km/h west, how far can it travel in 0.5 hours?
PLEASE SHOW WORK!

Answers

Answer:90 km

Step-by-step explanation:

Answer:

22.5 km

Step-by-step explanation:

distance = speed x time

x = (45 x 0.5) km

x = 22.5

Find the square root of 25x^2-40xy+16y^2​

Answers

The square root of [tex]25x^2-40xy+16y^2[/tex] is 5x - 4y.

Given that,

The quadratic equation is [tex]25x^2-40xy+16y^2[/tex].We need to find out the square root.

Based on the above information, the calculation is as follows:

[tex]= 25x^2-40xy+16y^2\\\\= (5x)^2 - (2\times 5x \times 4y) + (4y)^2\\\\= (5x - 4y)^2\\\\= \sqrt{ (5x - 4y)^2}[/tex]

= 5x - 4y

Therefore we can conclude that the square root of [tex]25x^2-40xy+16y^2[/tex] is 5x - 4y.

Learn more: brainly.com/question/9664917

Please help me with this problems if you want to answer 1 that’s ok I just need help k don’t really understand.

Answers

Answer:

Step-by-step explanation:

1. 120

2saves 52 dollars

3 at normal price its 108 per tire but on sale it will be 95 per tire

Answer:

2) 120 customers per day

3) $13 per tire

Step-by-step explanation:

2) 3600÷30=120 customers per day

3) 216÷2=108

380÷4=95

108-95=$13 per tire

Write and solve an addition equation to find x.

Perimeter = 48 ft

Answers

Answer:

mwjdjjdjdvdiwu smksmskkwow ekieliwwliwlwiowmd smksmskkwow a msksksisia

Step-by-step explanation:

mxjdmw! ok iehdukdikekdk akismsksksialoalqoq

What is least amount of surface area possible on a rectangular prism with a volume of 64 cubic inches? What are the dimensions of this rectangular prism? LOTS OF POINTS

Answers

Answer: 96in²

Step-by-step explanation:

A cube is the most efficient rectangular prism in terms of surface area.

A rectangular prism where l = 4in w = 4in h = 4in has a volume of 64in³

This rectangular prism has a surface area of 96in²

Answer:

96

Step-by-step explanation:

What is the definition of the term CONSTANT? *

Answers

Answer:

It's an adjective. means regularly occurring, persustent; or, unchanging, in value, nature, or respect.


A rental car company charges $35 a day plus $0.15/mi for a mid-size car. A customer owes
$117.15 for a three-day rental. How many miles did the customer drive?

Answers

Answer:

81 Miles

Step-by-step explanation:

117.15-(35*3)=12.15

12.15/.15=81

The function y=f(x) is graphed below. What is the average rate of change of the function f(x) on the interval -8 ≤ x ≤ -1?

Answers

Answer:

The average rate of change of the function is: 0

Step-by-step explanation:

The function y = f(x) is graphed below.

From the graph it is clear that:

at x = -8, the value of f(-8) = -10

at x = -1, the value of f(-1) = -10

We have to determine the average rate of change of the function f(x) on the interval -8 ≤ x ≤ -1.

so

at x₁ = -8, f(x₁) = f(-8) = -10

at x₂ = -1, f(x₂) = f(-1) = -10

Using the formula to determine the average rate of change of the function f(x) on the interval -8 ≤ x ≤ -1.

Average rate = [f(x₂) - f(x₁)] / [ x₂ - x₁]  

                      = [f(-1) - f(-8) ] / [-1-(-8)]

                      = [-10 - (-10)] / [-1+8]

                      = [-10 + 10] / 7

                      = 0 / 7

                      = 0

Therefore, the average rate of change of the function is: 0

Last week, a pharmacy sold a bottle of shampoo for $5.00. This week, the shampoo sells for $6.50. By what percent did price increase?

Answers

Answer:

The percent increase is 30%

Step-by-step explanation:

First find the difference

6.50 - 5.00 = 1.50

Divide by the original cost

1.50 / 5.00

.3

Change to percent

.3 = 30%

The percent increase is 30%

Answer:

30%

Step-by-step explanation:

5.0*30%=1.50

5.0+1.50=6.50

A solution containing 94.4 mL of carbon tetrachloride, CCl4, dissolved in 250.0 mL of nitrobenzene, C6H5NO2, was placed in the freezer, which dropped the temperature to 0°C. Did the solution freeze at that temperature? If so, at what temperature? The density of CCl4 is 1.59g/cm3. The density of C6H5NO2 is 1.2 g/cm3.

Answers

Answer:

No, it would freeze at -16.61°C.

Step-by-step explanation:

This is a practice delta math but i need help.

Answers

Answer:

it is the one that goes [tex]a_{n} =10(-2)^{n}[/tex]

Step-by-step explanation:

10 is the starting term a(sub 1). 2 is r or the common ratio and n is the term number you want to find. I hope this helps!

The dance committee of Pine Bluff Middle School earns $ 72 $72dollar sign, 72 from a bake sale and will earn $ 4 $4dollar sign, 4 for each ticket they sell to the Spring Fling dance. The dance will cost $ 400 $400dollar

Answers

Answer: See explanation

Step-by-step explanation:

Since the number of tickets is represented by t and we're told that the committee earns $4 per ticket and also earned $72 from bake sale, then the inequality will be given as:

= 72+4t>400

The solution if the inequality will then be:

72 + 4t > 400

4t > 400 - 72

4t > 328

t > 328/4

t > 82

Answer:

72+4t>400

t > 82

Step-by-step explanation:

top one is for the inequality

bottom is the solution

pls help me I need to get to a 100 and I will mark you. ❤️

Answers

Answer:

It was greater from 2015 to 2016.

Step-by-step explanation:

From 2015 to 2016 it was a 30 person difference

From 2014 to 2017 there was a 5 person difference

it was greater frm 2015-2016

Which other expression has the same value as (-14)-(-8)

Answer choices:
(-14)+8
14-(-8)
14+(-8)
(-14)+(-8)

Answers

Answer:

(-14)+(-8)

Step-by-step explanation:

the answer is a!
Explanation
(-14)-(-8)= -6

a= -6
b=22
c=6
d=-22
Hope this helped!

Need help plz I’m confused

Answers

Answer:

Vertical Shift

Step-by-step explanation:

The blue line is the original graph. The green one is the new graph. So, the blue graph moves up to where the green graph is. In other words, the line moves up, which is a vertical shift.

Help please ASAP thank you

Answers

Answer:

150 by 18 or 20

Step-by-step explanation:

James' school is selling tickets to the talent
show. On the first day of ticket sales the school
sold 4 adult tickets and 6 child tickets for a total
of $122. The school took in $94 on the 2nd day by
selling 5 adult tickets and 3 child tickets. What is
the price of one adult ticket and one child ticket?

Answers

Answer:

Your answer.

4x + 6y = 122.............(1)

5x + 3y = 94............... (2)

(2)*2-(1),,,,

10x+6y-4x-6y = 66

X = 11

Put x value in eq 1 or 2

Y = 13

Thank you. And give my answer as Brainlist answer. Follow me for more

Step-by-step explanation:

PLIS HELPPP I DON'T UNDERSTAND THIS

Answers

Answer:

Step-by-step explanation:

7 blue socks and 6, 5, 8 of non-blue socks. If you add the numbers of non-blue socks you get 19. Blue socks to non-blue would be 7:19

Answer:

The ratio is 7 to 19 or 7:19

Step-by-step explanation:

Since there are 7 blue socks and other colors are not blue we add the number of other colors. So basically 8+5+6= 19 and then 7 blue socks :)

write the equation for the line that has m = 4 and b = 8

Answers

Y=4x-8 will be your answer!!!!!

3. Triangle ABC has angle measures as noted below. Please note this triangle is not drawn to scale, and the longest leg of the figure may not be the longest leg of the actual triangle.
You will need to use the expressions for the angles given below.
A) 2(x + 15) B) 3x+10 C) 5x
(a) Identify the angle relationship and setup your equation with the given expressions.
(b) What is the value of x? Show your work.
(c) What is the measure of angle A, B, & C? Show your work and make sure to identify which is which.

Answers

Answer:

I only know B and C

Step-by-step explanation:

Part B)

2 (x+15) + 3x + 10+ 5x = 180        2x + 30 + 3x + 10 +5x = 180           10 +40 = 180

- 40 -40            10x divided by 10 = 140 divided by 10             x= 14

Part C)

A = 2 (x + 15) = 2 (14 + 15) = 2 * 29 = 58 degrees

< B = 3 x + 10 = 3 * 14 + 10 = 52 degrees

< C = 5 x = 5 * 14 = 70 degrees

Anthony is buying a new TV that is 25% off. The original price of the TV was $390.
Which answer gives the best estimate for the TV's price after the discount?

$390
$365
$300
$100

Answers

Answer:

390 well actually 389.75 but still

Rewrite each equation, then graph
the line
6x + 3y = 12

Answers

Here is the answer. I’m not so sure if my answer is correct about which side should it be shaded and whether it’s a dotted or solid line, but I hope you will get some sort of idea .

The probability that Sara wins a raffle is given by the expression n n + 3 . Write down an expression, in the form of a combined single fraction, for the probability that Sara does not win.

Answers

Answer:

n/3

Step-by-step explanation:

n×by n is=n square.

n/3

Probability that Sara does not wins a raffle is  [tex]\frac{3}{n+3}[/tex].

What is probability?

Probability is simply how likely something is to happen. Whenever we're unsure about the outcome of an event, we can talk about the probabilities of certain outcomes—how likely they are.

Given

Probability that Sara wins a raffle is given by the expression

P(win) = [tex]\frac{n}{n+3}[/tex]

Probability that Sara does not wins a raffle is given by

P(does not win) = 1 - [tex]\frac{n}{n+3}[/tex]

= [tex]\frac{n+3}{n+3} -\frac{n}{n+3}[/tex]

= [tex]\frac{n+3-n}{n+3}[/tex]

= [tex]\frac{3}{n+3}[/tex]

Thus, probability that Sara does not wins a raffle is  [tex]\frac{3}{n+3}[/tex].

Find out more information about probability here

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Write a recursive formula for the sequence: −3, 34, −316, 364, −3256

Answers

Answer:

-7

Step-by-step explanation:

HELLp NOWWEEE I really need it plsss

Answers

Answer: diameter is 5.2 radius is 2.6

Step-by-step explanation:

2/3(x+6)=-8 whats the value of x?

Answers

Answer:

x=-18

Step-by-step explanation:

Answer:

The answer is -18

Step-by-step explanation:

STEP 1:

[tex]3 \times \frac{2}{3} (x + 6) = 3( - 8)[/tex]

2(x+6) = -24

______________________________________

STEP 2:

Divide both sides by 2:

[tex] \frac{2(x + 6)}{2} = \frac{ - 24}{2} [/tex]

________________________________

STEP 3:

Simplify:

[tex]x + 6 = - 12[/tex]

Subtract 6 from both sides:

[tex]x + 6 - 6 = - 12 - 6[/tex]

________________________________

STEP 4:

[tex]x = - 18[/tex]

Therefore, your answer is -18.

Ask more questions if you don’t understand! :)

3)
Solve the inequality for x.
- 4x + 16 > -64
A)
X> 12
B)
X > 20
x < 12
D
x < 20

Answers

Answer:

D: x < 20

Step-by-step explanation:

-4x + 16 > -64

subtract 16 from both sides because you must isolate x.

-4x + 16 - 16 > -64 - 16

-4x > -80

Then divide -4 on both sides... I believe that when you divide a number by a negative number you must flip the sign...

-4x/ -4 < -80/ -4

        x < 20

(negative divided by a negative will result in a POSITIVE.)

Hope this helped... I truly apologize if this is wrong..

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