Mathematics High School

Which of the following ordered pairs a solution to the equation?
Equation: 5x + 2y = -1
Ordered pairs: (5, -1) (2, 8) (-4, -6) (-3, 7)

Answers

Answer 1
(-3,7)

5(-3)+2(7)=-1

-15+14=-1

Related Questions

Help me pleasee i need help

Answers

Answer:

D is a correct answer..

Find the distance between the points​

Answers

Answer:

5

Step-by-step explanation:

Niles and Bob sailed at the same time for the same length of time. Niles' sailboat traveled 30 miles at a speed of 6 mph, while Bob's motorboat traveled 70 miles at a speed of 14 mph. For how long were Niles and Bob traveling?

Answers

Answer: 5 hours

Step-by-step explanation:

As both of them sailed for the same time, take the speed and distance of either of them to find the time they traveled:

Niles' Time = Distance / speed

= 30 / 6

= 5 hours

Bob's time = 70 / 14

= 5 hours  

Christopher has a points card for a movie theatre
He receives 30 rewards points just for signing up
He earns 5.5 points for each visit to the movie theatre
He needs 63 points for a free movie ticket
Write and solve an equation which can be used to determine x, the number of visits Christopher must make to earn a free movie ticket

Answers

Answer:

63 = 5.5 * x + 30

x = 6

Step-by-step explanation:

Answer:

63 = 5.5 * x + 30

x = 6

Step-by-step explanation:

just answered the question

How many groups of 2/3 are in 5?

Answers

Answer:

7.5

Step-by-step explanation:

Mr. Arnold is buying dry-erase markers for his classroom. He already has 7 markers. Mr. Arnold buys 5 packs with 7 markers each and 8 packs with 4 markers each. He then throws away 2 markers that do not work. Which number sentence best represents how many dry-erase markers Mr. Arnold now has in his classroom?
7 + 5(7) + 8(4) – 2 g

7 + 5(7) + 8(4) – 2 f

7 – 5(7) + 8(4) + 2 e

7 – 5(7) + 8(4) + 2 d

7 – 5(7) + 8(4) – 2 c

7 – 5(7) + 8(4) – 2 b

7 + 5(7) + 8(4) + 2 a

Answers

Answer:

7 + 5(7) + 8(4) – 2 g

Step-by-step explanation:

Merit raises for the year must be divided among four top employees. The amounts will be distributed based on their varied performance ratings. Employee A will get 25% of Employee B's raise. Employee B's raise will be 50% of Employee C's raise and Employee C's raise will be 80% of Employee D's raise. Based on the information provided above, what percentage of Employee D's raise will Employee A receive?

Answers

Answer:

10%

Step-by-step explanation:

i will mark brainiest, please help and explain

Answers

Answer:

64

Step-by-step explanation:

It is hard to explain in writing. Because all of the sides are semetrical then whatever mesurment that is on one side, will be on the other. So for example, if there is 12in on one side, the other side will be 12in too. If the top of the letter is 3in, then so are the rest of the parts that are the same size. When you figure out all of the lengths of the sides then you add them up.

I hope this helps.

If it didn't then plz tell me what I need to clarify :)

What does the symbol≅for?

Answers

Answer:

approximately equal to/approximate equality/congruent or congruence (in geometry)

Answer: It means Approximate equality Congruence

please help me ill mark you brainlyest

Answers

Answer:

A is false it said it could be greater than 35 or equal to and 100 x 5 = 500 + 1 = 501 therefore a is false

B is false 6.8 could be possible and it could be a decimal it can't only be a whole number

C is false 6 4/5 is a solution so c is false

D is I'm not sure, I think infinite except for 7 and below so maybe true

E is false because any number greater than 7 that are multiplied to 5 can be as long as its greater than or equal to 35

Ok this is what I think. Id rather wait for more answers to be sure thank you.

Themla spent 1/6 of her weekly allowance on dog toys. 1/4 on a dog collar, and 1/3 on dog food. What fraction of her weekly allowance is left?

Answers

Answer:

¼ remaining

Step-by-step explanation:

Convert to common numerator of 12:

1/6 = 2/12

1/4 = 3/12

1/3 = 4/12

Total: 9/12

1 - 9/12 = 3/12 = ¼

Which degree measurement is equivalent to
7pie/6 radians?

Answers

The answer is 210° ... if it is incorrect let me know so I can correct myself !
mark brai. Please

Helpppppp MEEEEE PLSSSS

Answers

18.84 all you do is the v times 3.14 and that’s what you get
3,14•3^2= 28,26
28,26•5=141,3 m^2

Ming is cooking pancakes. The recipe calls for 19 cups of flour. She has already put in 8 cups. How many more cups does she need to put in?

Answers

Ming still needs to put in 11 cups of flour to make the recipe.

Equation

Equation is an expression used to show the relationship between the two or more variables and numbers.

Let x represent the number of cups of flour remaining for Ming to put in. The value of x can be gotten from the formula:

x + 8 = 19

x = 11 cup

Ming still needs to put in 11 cups of flour to make the recipe.

Find out more on Equation at: https://brainly.com/question/13763238

Figure 1: Figure 2: Figure 3: Figure 4:​

Answers

figure1- 24° figure2-30° figure3-88° figure4-35°

Figure ABCD is a trapezoid. Find
the value of x.
3x+3
B
13
4x+2
A
D
X = ?

Answers

Answer:

x = 3

Step-by-step explanation:

The midsegment is half the sum of the parallel bases, that is

[tex]\frac{1}{2}[/tex] (3x + 3 + 4x + 2) = 13

[tex]\frac{1}{2}[/tex] (7x + 5) = 13 ( multiply both sides by 2 )

7x + 5 = 26 ( subtract 5 from both sides )

7x = 21 ( divide both sides by 7 )

x = 3

Angle B and angle C are complementary. If angle B is five times the size of angle C what is the measurements of both angles.

Answers

Step-by-step explanation:

Let Angle C be x

So angle B will be 5x

Since they both are complementary, we can come up with this equation.

x+5x=90 degrees

6x=90 degrees

x=90/6,x=15

Measures of Angles

Angle C=x=15 degrees

Angle B=5x=5*15=75 degrees

PLEASE FOLLOW ME AND MARK AS BRAINILIEST

The topics is law of cosines and sines and I really need help with this

Answers

Answer:

i guess it is correct

For the triangle shown, find sec x

Answers

You have the three basic trig functions: sine, cosine, and tangent.
Sine = opposite/hypotenuse
Cosine = adjacent/hypotenuse
Tangent = opposite/adjacent

You have three other trig functions: secant, cosecant, and cotangent.
Cosecant = hypotenuse/opposite
Secant = hypotenuse/adjacent
Cotangent = adjacent/opposite

The way I’ve always remembered these is the 3 other trig functions are sine, cosine, and tangent flipped. Sine’s opposite is cosecant. Cosines opposite is secant, and tangents opposite is cotangent.

If you notice, each of these functions has a word starting with co-, and a word starting without co-. That’s how I’ve always remembered that sine goes to cosecant and cosine goes to secant.

Now that we know secant (or sec for short) x = hypotenuse/adjacent, you can find it.

First, find the hypotenuse of the triangle. Use Pythagorean’s theorem to do this.

a^2 + b^2 = c^2
5^2 + 7^2 = c^2
25 + 49 = c^2
c^2 = 74
c = √74

Now plug the values for hypotenuse and adjacent into sec(x)
sec(x) = √74/7

Answer:

Step-by-step explanation:

Using the Pythagorean Theorem, (7)2 + (5)2 = c2 ⇒ c = 72

.

Since x =  1 /cos x =  hypotenuse /adjacent , then sec x = √ 74/7

The population of a town increased from 20,000 people to 25,000 people. What percent did the population increase?​

Answers

Answer:

The town population increase by 25%

Step-by-step explanation:

Btw can u please mark me brainliest, I need 3 more to rank up

Answer: 25%

Step-by-step explanation:

20000*1.25=25000

determine the range of the following graph

Answers

Given:

The graph of a function is given.

To find:

The range of the graph.

Solution:

We know that, the domain is the set of input values and range is the set of output values.

In a graph, domain is represented by the x-axis and range is represented by the y-axis.

From the given graph it is clear that there is an open circle at (-8,-8) and a closed circle at (3,4). It means the function is not defined at (-8,-8) but defined for (3,4).

The graph of the function is defined over the interval [tex]-8<x\leq 3[/tex]. So, the domain is (-8,3].

The values of the function lie in the interval [tex]-8<y\leq 4[/tex]. So, the range is (-8,4].

Therefore, the range of the function are all real values over the interval (-8,4].

PLZ HELP ME :( it is simliar triangles

Answers

Answer:

B

Step-by-step explanation:

i think

It’s B because A is not similar

Brittany and Stephanie went shopping together and spent $118 altogether. Stephanie spent $8 less than twice the amount as Brittany. How much did each girl spend

Answers

Answer:

4. x+y=11

3x+5y=45

Step-by-step explanation:

Please help, Trigonometry. Will mark brainliest.

Answers

Answer:

Cosine = Adjacent/Hypotenuse

Cosine A = 267/391

Cosine^-1 = 267/391

Angle A = 47 degrees.

Let me know if this helps!

BEST ANSWER GETS BRAINLIEST

Central Fencing has been hired to fence the perimeter of a rectangular field. The length of the field is 42 - W feet, where W is the width of the field, and the area of the field must be more than 432 square feet. Find the bounds on the width of the field.

Answers

Answer:

10.3 is the width

Step-by-step explanation:

set up an equation

42w=432

divided both sides by 42

W=10.2857142857

to rounded it to nearest tenth it will be 10.3

to check your answer multiply 10.3 by 42 it will be 432

check check

Answer:

18 ≤ w ≤ 24

Step-by-step explanation:

A = l * w

A ≥ 432 sq ft.

l = 42 - w

432 ≤ (42 - w) (w)

432 ≤ -w² + 42w

w² - 42w ≥ 432

Substitute values for w

w = 18

w = 24

i NEED UR HELP CAUSE I DON'T KNOW WHAT I'M DOING PLS

Answers

Answer:

D) x > -4

Step-by-step explanation:

6x - 5 > -29

6x > -29 + 5

6x > -24

x > -4

Which equation models this situation?
25 more than a number is 32.
O A. x+ 25 = 32
B. x + 32 = 25
O C. x - 25 = 32
D. x = 25 + 32

Answers

A, because x is the number and when you add 25 more to it, it equals 32

What are the coordinates of the vertex of the parabola?

Answers

Answer:

A

Step-by-step explanation:

f(x) = a(x – h)^2 + k

Vertex (h, k)

according to the equation h= -3  k= -8

A Speedboat increases in speed uniformly from 20m/s to 30m/s for 12.2 s. What is the acceleration of the speedboat?

Answers

Answer:

0.82 m/s^2

Step-by-step explanation:

Given data

initial velocity=20m/s

Final velocity= 30m/s

Time = 12.2s

Applying the formula

a= v-u/t

a= 30-20/12.2

a= 10/12.2

a= 0.819

a=0.82 m/s^2

Please what’s the value of x

Answers

The value of z is 20
Hold on ima get it for you
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