Mathematics High School

if you where asked to solve a system of linear equations using the substitution method, what form would one or both of the equations start as that would make the problem the simplest?


A. point-slope form
B. standard form
C. slope-intercept form
D. point-intercept form​

Answers

Answer 1

Answer:

It's A

Step-by-step explanation:

In general, the equation in point-slope form will give an expression that can substitute for "y", as that form is ...

 y = [something]

_____

In specific instances, the other forms of the linear equations may work, but that is not guaranteed.

Related Questions

4x + 9y = 24
X + y = 10
Help ASAP

Answers

Answer:

14

Step-by-step explanation:

Answer:

(x, y) = (-16/5, 13[tex]\frac{1}{5}[/tex])

Step-by-step explanation:

4x + 9y = 24

x + y = 10 $\Rightarrow$ x = 10 - y

Substituting the value of x (second equation) into the first equation, we get:

4 * (10 - y) + 9y = 24

40 - 4y + 9y = 24

5y = -16

y = -16/5.

So, x = 10 - (-16/5) = 10 + 3[tex]\frac{1}{5}[/tex] = 13[tex]\frac{1}{5}[/tex]

PLEASE HELP ME. I WILL GIVE BRAINLIEST IF CORRECT

Answers

Answer:

c) [tex]h(t)=-16(t-1.5)^{2}+676[/tex]

Step-by-step explanation:

Each of the given equations is written in vertex form. This means that the vertex is written in the equation. The quadratic term (the term to the second degree), contains (x), and a value that is either added or subtracted to it. The additive inverse (meaning a number times negative one) of that number is the x-coordinate of the vertex. Therefore, the term inside the parenthesis is (-1.5). The constant is the y-coordinate of the vertex, and therefore it is 676. Since the object is being thrown off a cliff, gravity acts on it. The gravitational constant in feet per second is (-16), hence the coefficient of the quadratic term is (-16).

If a retailer has an item that is priced at $3.54 and wants to sell it for 20% less, the markdown will be _____.

Answers

Answer:

KNMOJAO0 GPR5PWQ3]

Step-by-step explanation:

vgjaseh jvgofrAQ vfjswA

Answer:

:)

Step-by-step explanation:

well if u take 3.54 x 20%, you get 0.708 or 70 cents.. so i’m guessing 70 cents.

HELP
HELP
ITS HARD
pls pls pls pls pls

Answers

you have to do the amount of hay one horse can eat times by how many horses there are. then you have to do that times the amount of days to see how much hay they ate overall. so that’s 21x20x14, which is 21(20x14) and that equals 5880. so the answer is C and the blank is 5880. hope this helps!

Evaluate a + (-6) where a =
4 and b= 2.

Answers

Answer:

-2

Step-by-step explanation:

a + (-6), a = 4

(4) + (-6)

4 - 6

= -2

Find the slope and y-intercept of the line.
4)
m=
b=

Answers

Answer:

m=y = 2x + 4.

y intercept is 4

Step-by-step explanation:

HELP me help help help help

Answers

2x+79+32=180
2x+111=180
2x=69
x=34.5

Answer:

(I'll edit this when I get home with the answer)

Step-by-step explanation:

As you see here, draw a line like that, and than each of those 2 triangles have 3 angles that get to 180° in total, so just make an equation of the 3 angles that equals to 180° and than solve for the variable there

I couldn’t figure this probably out. Please help

Answers

Answer:

x = 9

Step-by-step explanation:

Perimeter of rectangle = 2(l+b) = 42

=> 2(x+3 + x)

=> 2 (2x + 3) = 42

=>  4x + 6 = 42

=> 4x = 42 - 6

=> 4x = 36

=> x = 36/4

=> x = 9

Hope it helps :)

Answer:

Formula = (l + b) x 2= 42 so answer = x=9

Step-by-step explanation:

l =x

b =x+3

( x+x+3) * 2 =42

2x +3 x 2 = 42

2x +3 = 42/2

2x +3 = 21

2x = 21 - 3 =18

x = 18/2

x=9


On Tuesday Gabriella bought ten posters, On Wednesday half of all the posters that she had were destroyed.
On Thursday there were only 19 left. How many did she have on Monday?

Answers

28 posters
May God bless you and your family

What’s the value of x

Answers

Answer:

C. x=42

Step-by-step explanation:

16 + 3x + y = 180

126 + 16 + y = 180

y = 38

16 + 3x + 38 = 180

54 + 3x = 180

3x = 126

x=42

Daniel goes to an amusement park. He spent $31.75 on the admission fee and $9.25 on parking. He also spent $5.50 on snacks at the park.

If a ticket for a ride costs $5.50, what were the maximum number of rides he could take if he had $79.50 in his pocket?

Answers

Answer:

783 espero ter ajudado Bon estudos

Please help me finish !
will give brainiest

Answers

Answer:

6. 60

7. 24.25

8. 28.00111604  or 28

Step-by-step explanation:

30 +90 =120 180-120=60

Sin A = a/c, so a = cSin A. Also Cos A = b/c, so b = cCos A so Sin30=14/c=28

Cos30=b/28 b=24.25

now 14^2+24.25^2=c^2 which gives 28.00111604 or 28

50 pts PLZ HURRY AND HELP IM TIMED
How many faces does the solid made from the net below have?
5
6
10
15

Answers

Answer: 10 is your answer

Step-by-step explanation:

Answer:

10

Step-by-step explanation:

Just keep looking at the faces.

Hopefully im correct, this is my 1st one :)

jack needs 22 pirates for every 2 pirate ships he manages ​

Answers

Answer: 55:5 121:11

Since the ration is 11:1 then all you have to do is multiply x times y example: 5x11= 55 pirates

1) the volume of right circular cone is 9856cm² . if the diameter of the base is 28cm , find height of cone .​

Answers

The height would be 48.02

A~B, what is the scale factor from B to A?


A. 1/2
B. 2/5
C. 2
D. 5/2

Answers

Answer:

I cant help you completely but it has to be C or D because it is bigger and not smaller

Step-by-step explanation:

HELPPPP PLZZZzzzzzzzz

Answers

Answer: A
Explanation:

Grace has a bag of candy corn with 378 pieces. She wants to divide it equally and give it to 9 friends in smaller bags. How many pieces of candy corn should she put in each bag?

Answers

Answer:

42 pieces

Step-by-step explanation:

you do 378÷9

then you'll get the answer which is 42 pieces

The number of bacteria in a petri dish culture triples every two days. Initially there were 250 bacteria present. Which equation models the number of bacteria B after T days?

A. B=250•3^t+2

B. B=250•3^2t

C. B= 250•3^t/2

D. B=250•3^t^2

please only respond if you know the answer :)

Answers

Answer:

B

Step-by-step explanation:

B = 250 * 3^2t

What standard form polynomial expression represents the perimeter of this quadrilateral

Answers

Answer:

5x³ + 6x² + 0x - 8  <== answer

Step-by-step explanation:

There is no picture, but i did that homework before.

plz help, picture is the question​

Answers

1. Given
2. If lines are parallel, corresponding angles are equal.
3. Vertical angles are equal.
4. Substitution

Renee is creating a diagram to prove that a certain triangle is a right triangle. In her diagram, she uses three white quadrilaterals that are squares. Which diagram could be the one that Renee is creating

Answers

Answer:

Option D

Step-by-step explanation:

A triangle is a polygon with three sides and three angles. Types of triangles are right angled triangle, scalene triangle, equilateral triangle and isosceles triangle.

A right angled triangle is a triangle in which one of the angles is 90°. The side opposite the 90° is known as the hypotenuse while the remaining sides is known as the leg. Let us assume a right triangle with legs of a, b and a hypotenuse of c. Then using Pythagoras theorem:

c² = a² + b²

From the options, option d is the correct option.

For option D, the hypotenuse is c and one leg is a. Let x represent the second leg. Hence:

c² = a² + x²

x² = c² - a²

x = √(c² - a²)

Therefore the other leg would be √(c² - a²)

PLSSSSSSS HELP IM GIVING LOTS OF POINTS :D

Answers

Answer:

2= 4

3= -9

4= 1 and 2/3

A vendor sells hot dogs and bags of potato chips. A customer buys 3 hot dogs and 5 bags of potato chips for $9.50. Another customer buys 2 hot dogs and 5 bags of potato chips for $8.00. Find the cost of each item.

Answers

Step-by-step explanation:

3d + 5p=9.50

2d + 5p=8

1 hot dog cost $1.50

2 × 1.50 + 5p = 8

3 + 5p = 8

5p = 8 - 3

5p = 5

p = 1

1 bag of potato chips cost $1.00

all rational numbers are integers trure or false​

Answers

Answer:

False

Step-by-step explanation:

False
All rational numbers are no integers

CAN SOMEONE HELP ME PLEASEEE

Answers

Answer:

a. 45 degrees

b. 315 degrees

c. 8π

d. π

e. 7π

f. 16π

g. 2π

In WXY y=3.6 w=6 and X=147

Answers

Answer:

[tex]wxy = 6 \times 147 \times 3.6 \\ = 3175.2[/tex]

Do anyone know this answers

Answers

Answer:A. 20 B. 70 C.20 D. 70 E. 70

Step-by-step explanation:

Hope this helps!

a:20
b:70
c:20
d:70
e:110

Step by step:

E + 70 = 180 thus, E = 110

A + 70 = 90 thus, A = 20

A + B = 90 thus, B = 70; because A would be equal to 20

B + C = 90 thus, C = 20; because both sides are 90 degrees

E + D = 180 thus, D = 70; because E would be equal to 110

What is the correct answers???

Answers

Answer:is it multi choice if it is b,c,f if not then b

Step-by-step explanation:

) Multiply. What is the product
(3 x 10^9) * (2 x 10^17) in scientific notation?​

Answers

Answer:

6 ×10^26

hope it helped

have a good day mate

Answer:

6x10^26

Step-by-step explanation:

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