Mathematics High School

Can you Help me please :/

Answers

Answer 1

Answer:

(2,1)

Step-by-step explanation:

multiply by negative three on the first equation then solve

Answer 2

Answer:

(-2, 1)

Step-by-step explanation:

Given:

2x+8y=4...(1)

6x-y=-13...(2)

You would want to have an x or a y value that equals the same in both equations. In this case, we can multiply equation 1 by 3 so that both x's in each equation equal 6x.

(2x+8y=4) x 3...(1)

6x-y=-13...(2)

becomes...

6x+24y=12...(3)

6x-y=-13...(4)

As you can see here, both x's in this equation are equal.

Now we will be combining these equations together. Take the equal x values and make sure they will equal 0. You do that by either subtracting the entire equation or adding it. In this problem, we will be subtracting it because 6x-6x=0

(6x+24y=12) - (6x-y=-13) = 25y =25

Now that we can solve for y separately, 25y=25 y=1

To solve for x, just substitute y into one of the original equations (equations 1 or 2). For this problem, I'll use equation 1.

6x-y=-13

6x-1=-13

6x=-12

x=-2

(This is what I got for my answer and here is the explanation. I apologize if my answer is incorrect. If someone notices a mistake in my answer, please correct me, thank you and have a nice day!)

Related Questions

please help asap

mixed numbers

solve the following statement by rewriting the mixed numbers as the sum equal parts.

2 4/7 ÷6

A.[tex]\frac{4}{21}[/tex]
B.[tex]\frac{3}{7}[/tex]
C.[tex]\frac{8}{21}[/tex]
D.[tex]\frac{7}{3}[/tex]

Answers

Answer:

0.4285

Step-by-step explanation: That’s what Siri told me✊✊✊‍♂️

Given kite ABCD with AD=AB, AO=3, and BD=8. Find AD.

This is to find the missing side with Vertex angles of Kite ∠A and ∠C, non-vertex angles are ∠D & ∠B, Main Diagonal bisects ∠A and ∠C and cross diagonal bisects ∠D and ∠B. Please help me find side AD

Answers

Answer:

AD = 5

Step-by-step explanation:

Given:

A kite ABCD with following dimensions:

AD = AB

AO = 3 and

BD = 8

To find:

AD = ?

Solution:

Kindly refer to the attached image for the figure of given dimensions.

In a kite, the following properties hold true:

1. The diagonals of a kite are perpendicular to each other.

2. The longer diagonal(along the vertex angles) bisects the shorter one.

Using above properties:

Looking at the [tex]\triangle AOD:[/tex]

[tex]\angle AOD=90^\circ[/tex]

AO = 3

OD = 4

We know that, Pythagoras theorem hold true in every right angled triangle.

According to Pythagorean theorem:

[tex]\text{Hypotenuse}^{2} = \text{Base}^{2} + \text{Perpendicular}^{2}[/tex]

[tex]AD^{2} = 4^{2} + 3^{2}\\\Rightarrow AD = \bold{5}[/tex]

The value of AD should be 5.

Calculation of the value of AD:

Since kite ABCD with AD=AB, AO=3, and BD=8

Here angle AOD = 90 degrees

And, AO = 3 and OD = 4

So, here we use the Pythagorean theorem

[tex]= \sqrt 3^2 + 4^2\\\\= \sqrt{9 + 16} \\\\ = \sqrt{25}[/tex]

= 5

Hence, The value of AD should be 5.

Learn more about angle here: https://brainly.com/question/21103473

Which are the first 5 terms of an ARITHMETIC sequence with a COMMON DIFFERENCE of -0.4 and a FIRST TERM of 0.7 *
1 point
0.7,0.175,0.04375,...
1,0.6,0.2,-0.2,-0.6,...
0.7,0.3,-0.1,-0.5,...
0.7,2.8,11.2,44.8,...

Answers

Answer:

Step-by-step explanation:

Can someone simplifie the following?

32/45
(4 20/39)
(2 16/145)
(1 25/62)
I'll give Brainliest

Answers

Answer:

32/45

176/39

306/145

87/62

Step-by-step explanation:

did it on my calculator

write an equation of the line that passes through the points:
(0,0), (4,-2)

Answers

Basically you want to plug it into the midpoint formula and the results from both sides will give you x and y make into a point (x, y) and your all set

find the distance between -25 and -14

Answers

Answer:

-11

Step-by-step explanation:

Distance between = subtraction-25 - (-14) = -25 + 14-25 + 14 = -11

I hope this helps!

I need help on this because how do u count it without a ruler

Answers

4 inches because its about 4 quarters long

Mr.Brown paid $754.40 for four plane tickets.How much did each plane ticket cost?

Answers

Answer:

188.60

each plane ticket cost 188.6

Step-by-step explanation:

754.40 divided by 4 =188.6

Answer:

188.60

Step-by-step explanation:

754.40÷4=188.60

Factorise

a) 2x + 8
b) 3x - 12
c) 6x + 4
d) 18x - 9

Answers

A ) 2 ( x+ 4 )

B) 3 ( x - 4 )

C) 2(3x+2)

d) 9(2x-1)

1. Name the x- and y-intercepts for the equation: 2x + y = 6 (0, 3) and (60) (0, -3) and (-6,0) (3,0) and (0,6) (-3,0) and (0, -6)

Answers

(3,0) and (0,6)
Y= -2x + 6
0= -2x + 6
-6/-2 = 3
X= 3
(3,0)

Y = -2(0) + 6
Y=6
(0,6)

Answer:

x- (3,0) and y- (0,6)

Step-by-step explanation:

see picture below

hope this helps!! :)

Which of the sets of ordered pairs represents a function?
A = {(2,-2), (5,-5), (-2, 2), (-5,5)}
B = {(4,2), (4,−2), (9, 3), (9, −3)}

Answers

it’s A because each domain is a different number

The answer is a because all of the domains on have one output

4(g- h) + 10, when g=12, h=7

Answers

Answer:

Step-by-step explanation:

When g = 12 and h = 7, the value of the expression is 30.

What are Expressions?

Expressions are mathematical statements which consist of two or more terms and terms are connected to each other using mathematical operators like addition, multiplication, subtraction and so on.

The given expression is 4(g - h) + 10.

Substitute the values of g and h as g = 12 and h =7, we get,

4(g - h) + 10 = 4(12 - 7) + 10

= (4 × 5) + 10

= 20 + 10

= 30

Hence the value of the expression is 30.

To learn more about Expressions, click on the link :

https://brainly.com/question/28170201

#SPJ2

Which equation transforms f(x)=x to a horizontal stretch by a factor of 2, a reflection over the x axis, and a shift down 4?

Answers

Answer:

the one you have selected

Step-by-step explanation:

you already have the correct answer

The expression that represents transformation is [tex]-f(\frac 12x)-4[/tex]

The equation of the function is given as:

[tex]f(x) = x[/tex]

The rule of horizontal stretch by a factor of 2 is represented as:

[tex](x,y) \to (\frac 12x,y)[/tex]

So, we have:

[tex]y = f(\frac 12x)[/tex]

The rule of reflection over the x-axis is represented as:

[tex](x,y) \to (x,-y)[/tex]

So, we have:

[tex]y = -f(\frac 12x)[/tex]

The rule of a vertical shift down by 4 units is:

[tex](x,y) \to (x,y-4)[/tex]

So, we have:

[tex]y = -f(\frac 12x)-4[/tex]

Hence, the expression that represents transformation is [tex]-f(\frac 12x)-4[/tex]

Read more about function transformation at:

https://brainly.com/question/1548871

Which one don’t lie?????!!!!!

Answers

Answer:

y=4x+35

Step-by-step explanation:

This is the answer because he already has 35 employees and gaining 4 employees for an x number of months.

3. Vocabulary Give an example of two
inequalities that are equivalent inequalities.
Explain your reasoning.

Answers

Are the inequalities x > 3 and 3 < x equivalent?

They both say that x must be larger than 3. No bickering here. So yep, they're equivalent.

Inequalities usually have a lot of solutions—in fact, infinitely many. Think about the inequality x > 3. This inequality states that "x must be larger than 3." Any number bigger than 3 is a solution to this inequality. That includes 3.001, 3.0001, 4, 5, 2 million, and every other number bigger than 3. We don't have time at the moment to name them all,

Plz help me I’ll give brainliest
Thank you

Answers

Answer: for the first one it’s y= -6/5x -4

for the second one it’s y=1/5x-2

for the 3rd one it’s y=1/4

for the 4th one it’s y=-x+1/2

Step-by-step explanation:

[tex]y = - \frac{6}{5} x - 4[/tex]

[tex]y = \frac{1}{5} x - 2[/tex]

[tex]y = \frac{1}{4} x[/tex]

[tex]y = - x + \frac{1}{2} [/tex]

What is the product?

Enter your answer as a fraction, in simplified form, in the box.

−4/5x10/16

Answers

Answer:

-1/2

Step-by-step explanation:

what is the change in elevation from 70 below sea level to 40 above sea level

Answers

Answer:

110

2.51 because 15.06/6 = 2.51

Answer:

A single gallon of gasoline would be $2.51.

Step-by-step explanation:

It's as simple as dividing the 6 gallons of gasoline by $15.06.

15.06 / 6 = 2.51

Hope this helps.

First to awnser will the question correct will get brainlyist

Ashley was out at a restaurant for dinner when the bill came. She wanted to leave a tip of 12%. What number should she multiply the cost of the meal by to find the total plus tip in one step?

Answers

Answer:

x 1.12

Step-by-step explanation:

Total meal plus 12% tip in one step.

12% as a fraction is .12

Multiply the cost of the meal by 1.12 To get the total cost including tip.

x 1.12

Math mafff math maff

Answers

Answer:

Figure A

Step-by-step explanation:

It just moves position and nothing else it does´t rotate or anything.

Definition of translation in math is: In Geometry, "Translation" simply means Moving ... ... without rotating, resizing or anything else, just moving.

Hopefully that is helpful to you. Have a wonderful day.

Answer:

Step-by-step explanation:

Without working out the multiplication, which product is larger, why? 3 × 1/5 or 3 × 1/10

Answers

Answer:

The product that will be larger is 3x1/5

Step-by-step explanation:

So in order to know this we have to look at the fractions. We already know that 1/5 is larger than 1/10. To double check our work, we can convert these fractions into percents. 1/5 being 20% and 1/10 being 10%. So now that we have prooved 1/5 is larger, multiplying the larger fraction by three will give us a larger product.

Hope this helped ;)

Which set of rational numbers is correctly ordered from least to greatest?
-0.5 -0.4 -0.3

Answers

Answer:-0.3 -0.4 -0.5

Step-by-step explanation:mark me as brainliest

What is the product of |(−12)3 ÷(14)2|

Answers

Answer:

1.29

Step-by-step explanation:

-12x3=-36

14x2=28

-36/28=-1.29

I-1.29I

Answer:

0.428571428571

Step-by-step explanation:

|-36/84|

|-0.428571428571|

0.428571428571

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