Mathematics High School

i need answer for #11

I Need Answer For #11

Answers

Answer 1

Answer: The first step would be to multiply the first equation by 3 and the second by 2 so you can eliminate x.

Answer 2

Answer:

(2, 0 )

Step-by-step explanation:

Given the 2 equations

2x + 3y = 4 → (1)

3x - 7y = 6 → (2)

Multiplying (1) by 3 and (2) by - 2 and adding the result will eliminate x

6x + 9y =  12 → (3)

- 6x + 14y = - 12 → (4)

Add (3) and (4) term by term to eliminate x

0 + 23y = 0

23y = 0

y = 0

Substitute y = 0 into either of the 2 equations and solve for x

Substituting into (1)

2x + 3(0) = 4

2x = 4 ( divide both sides by 2 )

x = 2

solution is (2, 0 )

Related Questions

need help asap!!! 48 points

Answers

Answer:

b. i think

Step-by-step explanation:

Describe fully the single transformation that maps shape A onto shape B.

Answers

It’s Reflection because is ............turning the same way as the y and x

Answer: Reflection over 2, on the X axis's

Step-by-step explanation: The half line between the two shapes can be used a line of reelection, by doing so your flipping A to B

Solve the equation below. Simplify if necessary.

-4/7v = -8 2/3
Show how you did it please :)

Answers

Answer:

15 1/6

Step-by-step explanation:

change -8 2/3 into an improper fraction = -26/3

-4/7v = -26/3

cross-multiply:

3(-4v) = (-26)7

-12v = -182

v = 182/12

v = 15 1/6

What two numbers go there (Part 2)

Answers

Answer:

9 and 7

Step-by-step explanation:

multiply 7 and 1 after that it will 7 and again adding 7 + 2 so it will be 9 so the answer will be 9 and 7

A human’s DNA code, found in nearly all body cells, can be condensed into chromosomes.

Answers

Answer:

I'm a alien, sorry.

Step-by-step explanation:

Answer:

True

Strands of DNA are or can be condensed to chromosomes.

~Hope this helps~

A textbook store sold a combined total of 228 biology and physics textbooks in a week. The number of blology textbooks sold was three times the number of
physics textbooks sold. How many textbooks of each type were sold?

Answers

Step-by-step explanation:

Let us assume p is the number of psychology books and b is the number of biology textbooks.

set up first equation:

we know that the total number of books sold was 393

p+b=393

set up second equation:

we know that there were 79 less biology book sold that psychology so...

p = b + 79

subsitute p in the first equation to solve for b

solve value for p

Please answer please please thank you please thank you for your answer

(P+6)(p-3) expand and simplify

Answers

Answer:

p² + 3p - 18

Step-by-step explanation:

(p x p) - 3p + 6p - (6 x -3)

p² + 3p - 18

what is the prime factor of 236​

Answers

Answer:

Step-by-step explanation:

prime factorization calculator of 326

Positive Integer factors of 326 = 2, 163, 326 divided by 2, 163, gives no remainder. They are integers and prime numbers of 326, they are also called composite number.

326 is a composite number.

Prime factorization: 326 = 2 x 163.

The exponents in the prime factorization are 1 and 1. ...

Factors of 326: 1, 2, 163, 326.

Factor pairs: 326 = 1 x 326 or 2 x 163.

326 has no square factors that allow its square root to be simplified.

38:5
A point is on a circle if the distance from the center of the circle to the point is equal to the
CE
area.
circumference.
o radius.
O diameter.

Answers

Answer:

its radius

PLZ MARK ME AS BRAINLIEST★♥

Find the measure of the indicated angle

Answers

Answer:

Hope it helped

PLS mark BRAINLIEST

Plzzzzz hurry!!!!!!!!!!

Answers

Answer:

d

Step-by-step explanation:

Cosx=4/5 what is sin2x cos2x and tan2x

Answers

Answer:

-24/5

Step-by-step explanation:

The solution to the problem is as follows:

cscx < 0 means 1/sinx < 0, or sinx < 0.  

sinx = -3/5 because you're dealing with a 3-4-5 triangle, and we established

sinx is negative.  

sin2x = 2sinxcosx = 2*-3/5*4/5 = -24/25  

cos(2x) = cos^2(x) - sin^2(x) = 16/25 - 9/25 = 5/25 = 1/5  

tan2x = sin2x / cos2x = -24/5

Rebecca's electric bill is a variable expense. What is the average amount she pays for electricity if she paid $135 in December, $129 in January, $99 in February, $120 in March and $140 in April?

A. $124.60

B. $125.00

C. $105.90

D. $132.45
I’ll give brainiest:)

Answers

Answer:
i think the answer is b
The answer B
I think so

Can you simply these fractions?

Answers

Answer:

2/7

3/4

2/3

1/2

1/10

5/7

3/8

1/9

2/5

1/5

If 6 elephants eat 10 bales of hay, how many bales will 9 elephants eat?

Answers

Answer:

15

Step-by-step explanation: divide 10 by 6 the multiply the quotient by 9

Answer:

15

Step-by-step explanation:

6\2=3. 3x3=9 10/2=5 5x3=15

3 Which best represents x, the missing angle
measure on Sierra's homework?
A x= 30.8°
B x = 61.6°
C X= 75.8°
D x = 151.6°

Answers

I believe it’s D bc 28.4 x 2 = 56.8 +151.6= 208.4 and supplementary angles need to be 180 or higher

Does anyone know this?

Answers

Answer:

26

Step-by-step explanation:

I'm just guessing so asit for another snser

Mass = 100g, volume = 20cm^3, what is the density?

Answers

Step-by-step explanation:

density= mass / volume

= 100g

20cm^3

= 50g/cm^3

the data shows the lengths in inches of 6 snakes

5 , 7 , 8 , 9 , 12 , 15

which statement about this data is true ?

a . the interquartile range of the data set is 5

b . the maximum of the data is 5

c . the mean of the data set is 9

d . the median of the data set is 9

Answers

The answer is b
Hope this helps

Pls help me answer this it’s either a b c or d explain as well mate

Answers

Answer: Add to eliminate x

Step-by-step explanation:

So if you add to 2 equations you can look at it this way. remove all variables right that leaves you with 10+4=48 and -10-3=-56 right and if you add 10 and -10 you get 0 or 0x so by adding these to equations x is eliminated by adding

HELP PLEASE!! Can someone please check if my answer is right??!!

Which graph represents the function over the interval [−3, 3]?

f(x)=⌊x⌋−2

Answers

Answer:

Did you write absolute value of x -2?

PLZ PLZ PLZ ANSWER THIS!!!!!!!

Answers

Answer:

350

Step-by-step explanation:

Answer:

C. 350 pounds

Step-by-step explanation:

Looking at the chart, week 22 would be between the week 20 and week 25 marks. As a result, the weight should be between 275 and 425 pounds. As a result, A is out. Week 22 will be bigger than week 20 (275), so B is also out. Week 22 is in between Week 20 and 25, so it isn't bigger than Week 25's pumpkin; D is out for this reason. That leaves C, 350 pounds, as our answer.

In your own words, what is a radical expression?

Answers

Answer:

In mathematics, a radical expression is defined as any expression containing a radical (√) symbol. Many people mistakenly call this a 'square root' symbol, and many times it is used to determine the square root of a number. However, it can also be used to describe a cube root, a fourth root, or higher. When the radical symbol is used to denote any root other than a square root, there will be a superscript number in the 'V'-shaped part of the symbol. For example, 3√(8) means to find the cube root of 8. If there is no superscript number, the radical expression is calling for the square root.

The term underneath the radical symbol is called the radicand.

I hope it's helpful!

Please I need serious help with this ASAP!!! I will mark brainliest if correct!! Please explain!!!!

Answers

Hey there!

1.) Mid-Segment Theorem

2.) Mid-Point Theorem

3.) Mid-Point Theorem

4.) Vertical Angles

5.) SAS Postulate

Have a super awesome day! :)

80 YTL para Ahmet ve Murat Sirasiyla 3 ve 5 ile dogru
orantı olarak paylastiniyor. Buna göre, yapılan paylaşımda, murat
Ahmet ten Kaç YTL dağa fazla para alir ?
A 16
B-20
C 24
D. 32​

Answers

sen Türksün be ne işin var senin burada

I think is c 24 I don’t fully understand the question

Rachel has $18.20 deducted from her paycheck every month for insurance. After 6.25 months, how much money has been deducted from Rachel’s checks?
-$11.38
-$18.20
-$113.75
-$1,137.5

Answers

It’s C because 18.2 x 6.25 is 113.75

which expression is equivalent to (5x10^-3)+(6x10^-3)/22x10^4

Answers

I dont know  

23423423423423324234234234234


What’s the error ???

Answers

Answer:

A.

Stepby-step explanation:

Can someone PLEASEEEEEEE tell me 5 ways to solve -2x<10 ?

Answers

Answer:

Divide each term by −2 and simplify.

Inequality Form:

x>−5

Interval Notation:

(−5,∞)

Isolate the variable by dividing each side by factors that don't contain the variable.

At a concert the ratio of men to women is 5:3
The ratio of women to children is 7:4
Show that more than half of the people at the concert are men.

Answers

Men: 5 : 3 = 20 : 12
Women: 7 : 4 = 21 : 12

So for every 12 children there are 20 men to 21 women.

Neither men nor women compose more than half of the concert population.
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