Please answer this, due today!!! - First correct answer becomes brainliest


Suppose you know x+2y=-1 and 3y-x=-19. What is xy?

Answers

Answer 1

Answer:

x+2y=-1

-×+3y=-19

5y=-20

y=-20/5

y=-4

x=0


Related Questions

Can someone help me with this?

Answers

Answer:

Step-by-step explanation:

Quadrilateral EFGH is a rectangle.

Therefore, measure of all interior angle of the rectangle = 90°

7). m∠FEG + m∠GEH = 90°

    57° + m∠GEH = 90°

    m∠GEH = 90° - 57°

    m∠GEH = 33°

Diagonal of the rectangle are equal in measure and bisect each other.

8). m(FH) = m(FK) + m(KH)

               = 32 + 32 [Since, FK ≅ KH]      

               = 64

9). m∠FGH + m∠EFG = 90° + 90°

                                   = 180°

MNOP is a Rhombus, so the diagonals will be perpendicular and bisect each other.

10). m∠MRN = 90°

11). m(PR) = 12

    Therefore, m(RN) = 12

"Diagonals of a rhombus bisect the opposite angles"

12). m(∠PON) = 124°

   Therefore, m(∠POM) = 124°

"ABCD is an isosceles Trapezoid"

13). Therefore, ∠C ≅ ∠D

14). AB║CD

15). AD ≅ BC

Find the gradient of the line segment between the points (1,2) and (3,-10)

Answers

Gradient = (-10-2)/(3-1) = -12/2 = -6

help my peleas
[tex]25 = {c}^{2} [/tex]

Answers

Answer:

5

Step-by-step explanation:

[tex]c^{2}[/tex] = 25

[tex]\sqrt{c} = \sqrt{25}[/tex]  /take square root of both sides

c = 5    /square root of 25 is 5

Answer please nowwwwwwe

Answers

first one is infinitely many solutions
second one is one solution
third one is infinitely many solutions

hope this helps !

What is the value of y when x = 4?

Answers

Answer:

I think there is no y-intercept bc all they give you is x ( don't even have slope either) but I could be wrong...sorry

Q8.

a. xy = 24, since (3)(8) = 24

b. 4y = 24

Y = 24 ÷ 4

Y = 6

NB: I think I figured it out ^-^ I hope this helps!

Which statement below is an example of the
Associative Property of Addition?
A. 7+(3+5)= 7+(5+3)
B.9+(11 + 6) = (9 +11) + 6
C. 3(6+5) = 3.6+3.5
D. 12(8 + 4) = 12(8) + 12(4)

Answers

Answer:

B

Step-by-step explanation:

Let say, a=9,b=11,c=6

Then associative properties says that every element is related to each other, here "b" associates a &c.

Therefore, a is related to b+c

c is related to a+b

PLLLLZxxXXZZ I REALLY NEED HELP DONT ANSWER RANDOM THINGS PLZ

Answers

Answer:

its B

Step-by-step explanation:

Answer:

i got A for both of them ^^

for #1 you would do 8(1/2÷2)-(1/4+4)

and for #2 its 7(2.5) - (12/3+6)

What is an equation of the line that passes through the points (-4,3)
and (-8,0)?

Answers

Answer:

Step-by-step explanation:

Slope of line passing through (-4, 3) and (-8, 0) = (3-0)/(-4-(-8)) = 3/4

Point-slope equation for line of slope ¾ that passes through (-8, 0):

y-0 = ¾(x+8)

A local car dealership is holding a year-end event because new car models have just been released. Declan has $35,000 to spend on a car. The car Declan decides to buy for his family costs $35,000. However, it is part of the year-end event, which means he receives a 15% discount on the new car. Declan plans to put the money he saves on the car into a new bank account. The bank account has a yearly simple interest rate of 4%, paid at the end of each year. If Declan does not add any other money to this bank account, it will take

Answers

Answer:

6 years

Step-by-step explanation:

The computation of the time period is given below:

As we know that

Future value = Present value × (1 + rate of interest)^time period

$6,720 = ($35,000 × 15%) × (1 + 0.04)^time period

$6,720 = $5,250 × 1.04^time period

1.28 = 1.04^time period

So, the time period is 6.29 years i.e. 6 years

hence, the time that should be taken is 6 years

pleaseeeeee halpppppppppppppp meeeeee i will mark brainlienst

Answers

Answer:

4 x c = 2,528

c = 632

Step-by-step explanation:

Answer:

The bottom one

Step-by-step explanation:

The question is saying they spent $2528 on 4 laptop computers that each cost the same amount so the equation is 4c=2528 .Divide 2528 by 4 to get 632.

P.S. can I get brainlist please?

adam hikes from bridgetown to lakeville. Gina starts at the same time, and hikes from Lakeville to Bridgetown on the same road. Their hikes are represneted on the graph below.

Answers

Answer:

45

Step-by-step explanation:

Find the slope of the line passing through the points (-3,5) and (-3,-7)? can anyone help me

Answers

Answer:  Slope = Undefined

===========================================

Explanation:

Let's apply the slope formula

m = (y2-y1)/(x2-x1)

m = (-7-(-3))/(-3-(-3))

m = (-7+3)/(-3+3)

m = -4/0

We run into trouble because 0 is in the denominator. We cannot divide by zero. This is why the slope is undefined.

The two points (-3,5) and (-3,-7) form a vertical line when you draw a line through them. All vertical lines have an undefined slope.

Put another way: the x coordinates of both points are the same (both are -3), so when we subtract those x coordinates, we end up with 0 in the denominator that leads to an undefined slope.

17)
In the coordinate plane, the endpoints of a line segment are (-12, 9) and (16, -5). What is the midpoint of the line segment?
A
(2, 2)
B
(-2,2)
(4.-2)
D

Answers

The answer is A. (2,2)

so basically what i did was 16-(-12)=28 and then divide 28 by 2 which is 14 and i went 14 points positive from -12 to find the midpoint, which is 2.

Pls tell me the answer....it’s dueee today

Answers

Answer:

90°

Step-by-step explanation:

Hi!

I forgot the theorems exact name but it's something like "radius to a line that is tangent to the circle is always perpendicular to the tangent line" and perpendiular means 90°

What is the value of c?

Answers

Answer:

180-96 will be the value for c

now do the calculation urself

can someone plz help me?​

Answers

Answer: x = 2

Step-by-step explanation: the interior angles of a rhombus add to 360 degrees and since half of 360 is 180, create the equation 130 + (36 +7x) and set it equal to 180. when solved 130 + (36 +7x) = 180 you get x =2

answer

1st rearrange the terms. then subtract 36 in both sides.then you will get 94=7x then simplify  by dividing by 7. then you will get 13.4285714286. which if you round up maybe its 94/7.

1. The graph of a LINEAR FUNCTION is a _______
A. Parabola
B. Point
C. Line
D. Circle

2. Which of the following are linear equations in two variables?
(a.) 2x + 3y = 12
(b.) x² +3y=4
(c.) y= 3x² -4
(d.) y² =16

3. Which of the following linear equations is in Standard form? (Ax + By =C)
A. Y= 7x + 3
B. 3x –5y= -5
C. - x + 7y =2
D. 4y -x = 0

4. What is the value of y in the equation
x -2y =4 given that x=8?
A. -4
B. -2
C. 2
D. 4

5. in the equation 2x + 3y = 7‚ when y=1, which would be the corresponding value of x?
A. -2
B. 0
C. 2
D. 4

6. which of the following ordered pairs is a
solution to the linear equation x-2y = 12?
A. (16,2)
B. (-8, -1)
C. (14,-1)
D. (4,-3)

7. which of the following is NOT a solution of the linear equation 3x -5y =-2?
A. (2,1)
B. (1, 1)
C. (6,4)
D. (16,10)

8. the steepness of the line also known as rise over run is called
A. linear equation
B. linear function
C. linear inequality
D. slope

9. which of the following equation is to be used in finding for slope of the given linear equation standard form?
A. m=A/ B
B. m= -A/B
C. m= B/-A

10. find the slope of the line that corresponds to the equation y=7x–5.
A. –5
B. 7x–5
C. 7
D. 7x

11. in the equation y= -2x +6, what is the slope?
A. -2
B. -1
C. 2
D. 6

12. in the equation y= 3x – 2, what is the y- intercept?
A. 3
B. -3
C. 2
D. -2

13. which of the following linear equations
is in slope-intercept form? (y=mx + b)
A. y= 9x – 23
B. x=3y+10
C. 2x+2y=2
D. x+7y=1

14. which of the following linear equations is in standard form? (Ax + By =C)
A. –x+7y=14
B. y=7x–14
C. 8y–x=16
D. 2x–9y=–6

15. which of the following is the standard form of y=11x+3 ?
A. 11x–y=3
B. –11x+y=–3
C. –11x+y=3
D. 11x–y=–3

=mclm=​

Answers

Answer:

1.Line

2.A

3. c

4.2

5.2

6. a

7.A

8.Slope

9.C

10.B

11.D

Step-by-step explanation:

How are the triangles congruent? A) not congruent B) ASA C) SAS D) AAS

Answers

Answer:

A) not congruent.    You only know one side and one angle to be congruent.

Step-by-step explanation:

Sandra has a rectangular pool in her backyard that is 9 feet long and 4 feet wide. A resort has a pool that is similar in shape, as shown. How long is the resort pool, in feet?

Answers

Answer:

? = 13.5

PLZ MARK AS BRAINLIEST

Step-by-step explanation:

6/4 = 1.5

9*1.5 = 13.5

Find the volume of this cylinder.
Give your answer to 1 decimal place.
11 cm
10
14 cm

Answers

Cylinder's volume = 1330.5 cm^3

Step-by-step explanation:

radius, r = diameter, d / 2

= 11/2

= 5.5 cm

Volume = π r^2 h

= π × 5.5^2 × 14

= 423.5π

= 1330.5 cm^3

Answer: volume is 1330.5cm3 (1dp)
Explanation:
V=pi x r2 x h
V=pi x 5.5squared x 14
V=1330.46
V= 1330.5cm3

Kirk wanted to open a savings account with the $2,000 he had earned over the summer. If the bank’s interest rate is 5%, how much will he have in 2 years? Show your work.

Answers

Answer:

$2205

Step-by-step explanation:

The formula is (2000*1.05^2) which is 2205

The value of Maggie's car decreased by 10% since last year, when she bought it. If the car is now worth $21,000.00, how much was the car worth when she bought it?

Answers

Answer

$23,333

Step-by-step explanation:

100% - 10% = 90%

90% = 0.90

21000/.90 = $23,333

-9m-27n as a product

Answers

Answer:

-9m-27n=

-9(m +3n)

[tex]{ \huge{ \green{ \underline{ \bf{Given}} \colon}}}[/tex]

[tex]{ \large{ \red{✮ \: \: \underline{ \underline{ \tt{ - 9m - 27n \: \: as \: \: a \: \: product}}} \colon}}}[/tex]

[tex]{ \huge{ \pink{ \underline{ \bf{Now}} \colon}}}[/tex]

[tex]{ \large{ \blue{ \therefore{ \boxed{ \boxed{ \sf{ - 9(m + 3n)}}}}}}}{ \large{ \orange{ \tt{Ans.}}}}[/tex]

how can I find the smallest division of a measurement without a ruler? for eg. 12.45cm, what's the smallest division? ​

Answers

Answer:

Step-by-step explanation:

mm

h is 60% of m.
Also, r is 75% ofm.
Work out h as a percentage of r.

Answers

Answer:

h=0.6m

r=0.75m

h=0.6m/0.75m*100 percent of r.

h=6000/75% of r

h=80% of r

Step-by-step explanation:

The expression of h as a percentage of r would be as;  80% of r.

What is the percentage?

A percentage is a minimum number or ratio that is measured by a fraction of 100.

WE are given that h is 60% of m.

Also, r is 75% of m.

WE need to find out h as a percentage of r.

Therefore, h=0.6m

r=0.75m

Now we can write as;

h = 0.6m/0.75m x 100 percent of r.

h = 6000/75% of r

h = 80% of r

Hence, the expression of h as a percentage of r would be as;  80% of r.

Learn more about percentages;

brainly.com/question/24159063

#SPJ5

Which choices are equivalent to the expression below?

Answers

Answer:

b d and e

Step-by-step explanation:

just simplify or modify each answer and you'll see which equate to 4 root 6. takes 2 mins.

A triangle has a height of 24km and a base of 18km. What is the area of the figure?

Answers

Answer:

216 square km

Step-by-step explanation:

24 x 18 / 2 =

432 / 2 =

216 km square

Hope that helps!

Answer:

225 [tex]km^{2}[/tex]

Step-by-step explanation:

Someone help me Please!!!

Answers

Answer: (-2, -1) and (3, 14).

Step-by-step explanation:

[tex]\left \Bigg \{ { \bigg{y=x^{2} +2x-1} \atop \bigg {y-3x=5}} \right. ; \left \Bigg \{ { \bigg{y=x^{2} +2x-1} \atop \bigg {y=5+3x}} \right.[/tex]

x² + 2x - 1 = 5 + 3x

x² + 2x - 1 - 5 - 3x = 0

x² - x - 6 = 0

[tex]General formula\\\\x=\dfrac{-b \pm \sqrt{b^{2}-4ac } }{2a} \\\\a=1; \: \: b=-1; \: \: c=-6\\\\x=\dfrac{1 \pm \sqrt{(-1)^{2}-4 \cdot1 \cdot (-6)} }{2 \cdot 1}=\dfrac{1 \pm\sqrt{25} } {2} =\dfrac{1 \pm5}{2} \\\\x_{1} = -2\\x_{2} =3[/tex]

y = 5 + 3x

y₁ = 5 + 3 * (-2) = -1

y₂ = 5 + 3 * 3 = 14

The pair of points representing the solution set of this system of equations is (-2, -1) and (3, 14).

Write two expresiones that are equivalent to -5/4x - 3/4

Answers

Answer:

Two expressions that are equal to [tex]-\frac{5}{4} x - \frac{3}{4}[/tex] is -([tex]\frac{5}{4} x + \frac{3}{4}[/tex]) and [tex]\frac{1}{4}[/tex] (-5x - 3)

Step-by-step explanation:

Both expressions use the distributive property and take out -1 and [tex]\frac{1}{4}[/tex] from each expression to form equivalent expressions to [tex]-\frac{5}{4} x - \frac{3}{4}[/tex].

Andre paid $17,520 for a new car. He will make equal payments each month for 4 years. What will be Andre’s monthly car payment?

Answers

Answer:

$12

Step-by-step explanation:

because,

365=year

365*4= 1460

17,520/1460=$12

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