Help me plzzz I’m bad at math

Answer:

its heredity

Step-by-step explanation:

Answer:

B. Heredity

Step-by-step explanation:

Answer: for 1 week it is 2.5 and for 7 weeks it is 17.5

Answer:

16m + 8m + 3

simplified is 24m +3

Step-by-step explanation:

Hope this helps. Pls give brainliest.

Answer:

(7, - 3 ) and (- [tex]\frac{5}{3}[/tex], [tex]\frac{17}{3}[/tex] )

Step-by-step explanation:

Given the 2 equations

y = 4 - x → (1)

x² + 2y² = 67 → (2)

Substitute y = 4 - x into (2)

x² + 2(4 - x)² = 67 ← expand and simplify left side

x² + 2(16 - 8x + x²) = 67

x² + 32- 16x + 2x² = 67

3x² - 16x + 32 = 67 ( subtract 67 from both sides )

3x² - 16x - 35 = 0 ← in standard form

(x - 7)(3x + 5) = 0 ← in factored form

Equate each factor to zero and solve for x

x - 7 = 0 ⇒ x = 7

3x + 5 = 0 ⇒ 3x = - 5 ⇒ x = - [tex]\frac{5}{3}[/tex]

Substitute these values into (1) for corresponding values of y

x = 7 : y = 4 - 7 = - 3 ⇒ (7, - 3 )

x = - [tex]\frac{5}{3}[/tex] : y = 4 + [tex]\frac{5}{3}[/tex] = [tex]\frac{17}{3}[/tex] ⇒ (- [tex]\frac{5}{3}[/tex], [tex]\frac{17}{3}[/tex] )

solutions are (7, - 3 ) and (- [tex]\frac{5}{3}[/tex], [tex]\frac{17}{3}[/tex] )

The solution of the equations are [tex]x=7[/tex] and [tex]x=-1.67[/tex]

The given system of equations are,

                 [tex]y=4-x\\\\x^{2} +2y^{2} =67[/tex]

Substitute value of y in second equation;

           [tex]x^{2} +2(4-x)^{2} =67\\\\x^{2} +2(16+x^{2} -8x)=67\\\\x^{2} +32+2x^{2} -16x=67\\\\3x^{2} -16x-35=0\\\\x=\frac{16\pm\sqrt{256+420} }{6}\\ \\x=7, -1.67[/tex]

The solution of the equations are [tex]x=7[/tex] and [tex]x=-1.67[/tex]

Learn more about the system of equations here:

https://brainly.com/question/13729904

Answer:

The x variable has an exponent of 2

Step-by-step explanation:

this makes it quadratic

8t + 7 means 8 times a number plus 7.

Answer:

$769.50

Step-by-step explanation:

It would cost $769.50 for 162 students because if you take 20 divided by 20 to get one student then you have to divide the money by 20 so you would get $4.75 per student. Then you have to take 4.75 times 162 because that is how many students they would pay for. So your answer would be $769.50 for 162 students to go to the aquarium

Answer:

I have nothing to say but I'd like points so... thank you for posting this

what's the question or help you need with?

Answer: The most number of skeins Sharon can afford to buy is 3.

Step-by-step explanation:

Step-by-step explanation:

Consider the provided information.

Sharon has at most $25 to spend on her sister's birthday gift.

That means Sharon can spend not more than $25.

She already bought a knitting machine for her, which cost $14.99.

She would also like to get her sister some skeins of yarn to go with it. Each skein costs $2.75.

Let y represent the number of skeins of yarn.

Thus, the required inequality is:  

Now solve the above inequality.

Skeins must be an integer.

Hence, the most number of skeins Sharon can afford to buy is 3.

ona wants to bake at most 30 loves of banana bread and nut bread for a bake sale. Each loaf of banana bread sells for $2.50 , And each loaf of nut bread sells for $2.75. Cora wants to make at least $44. Write a system of inequalities to model the situation

Answer:

x=20 degrees

Step-by-step explanation:

complementary means the angles equal 90 degrees

so ∠A+∠B=90 degrees

∠A=3x-2 and ∠B=x+12

so subsitute

(3x-2)+(x+12)=90

then solve for x

4x+10=90

4x=80

x=20 degrees is your answer

Answer:

250x+300

Step-by-step explanation:

Answer:

divide 45 and 72

Step-by-step explanation:

Answer:

94.33962264 approximately = 94

Step-by-step explanation:

1250 divided by 13.25 = 94.33962264

hope this helps and hope it's correct : )

9514 1404 393

Answer:

  sin -12/13

Step-by-step explanation:

You can use the identity ...

  tan = sin/cos

to solve for sine:

  sin = cos·tan

  sin = (-5/13)(12/5) =

  sin -12/13

Answer:

D.

Step-by-step explanation:

The domain can be understood as being the x whereas the y can be considered as being the range.

We know that in order to find the y, or in order words [tex]f(x)[/tex] we can simply plug in any x value that we're interested in into [tex]f(x) = 2x^{2}[/tex]

If we do that with the values of x (or domain) that we have from the problem, we will get

[tex]f(-3) = 2\cdot (-3)^2 \\f(-3) = 18\\\\f(1) = 2\cdot 1^2\\f(1) = 2\\\\f(4.5) = 2\cdot 4.5^2\\f(4.5) = 40.5\\[/tex]

From the results that we got, we know that the answer is D.

Good luck!

Answer:

D

Step-by-step explanation:

f(x) = 2x^2

f(3) = 2*(-3)^2

f(3) = 2* 9

f(3) = 18

=======

f(1) = 2*(1)^2

f(1) = 2*1

f(1) = 2

=========

f(4.5) = 2*4.5^2

f(4.5) = 2 * 20.25

f(4.5) = 40.5

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

D

about like 16, depending how long they take

Answer:

If you do about 16 to 17 a day then you can complete all of them in enough time 99/6=16.5 if you round it up to 17 then you'll be good.

Step-by-step explanation:

Hope this helps! Please consider marking brainliest! Always remember, your smart and you got this! -Alycia :)

Answer: 5.6

Step-by-step explanation:

Answer:

-4x+y = -1

Step-by-step explanation:

-12x + 3y = -3

I am going to factorise 3 out from the left hand side of the equation.

3(-4x+y) = -3

Shift the 3 over to the right hand side and turn (×3) into (÷3).

-4x + y = [tex]\frac{-3}{3}[/tex]

Evaluate.

-4x + y = -1

Answer:

SAS

Step-by-step explanation:

GH=JK given

GJ=GJ reflexive property

Angle GJK = Angle HGJ Alternate interior angles

Answer:

Your answer is -1

Step-by-step explanation:

Answer:

The correct answer is 6 jars can be used

Step-by-step explanation:

According to the given scenario, the calculation of the number of jars needed is shown below:

The 1 1 ÷ 2 liters means = 3 ÷ 2 liters

And, the paint is divided into 1 ÷4  liter jars

So, the number of jars needed is

= (3 ÷ 2) ÷ ( 1 ÷ 4)

= (4 × 3) ÷ 2

= 6 jars needed

Therefore the number of jars needed is 6 jars

Step-by-step explanation:

The total surface area is 168 square units.

Answer:

I think it's "C"

the triangles are nor similar because the variables x and y have different values.

P.S. hope it helped. If you have any questions, I'll be glad to answer them❤

Answer:

it's "C"

Step-by-step explanation:

the triangles are nor similar because the variables x and y have different values.

Answer:

B.

Step-by-step explanation:

Arithmetic sequences have a definite pattern.

A is counting up by 1, C is counting up by 2, and D is subtracting by 2 to get the next number in their sequences.

B's pattern is not so definite as it jumps from 14 to 9 and then to 16.

Answer:

I think it's a

Step-by-step explanation:

a - many-to-many

b - many-to-one

c - one-to-one

d - one-to-one

Step-by-step explanation:

Horizontal asymptote is the same and vertical asymptote at x = 6 (B).

Answer:

D

Step-by-step explanation:

That is how you multiply properly

Answer:

I believe it would be D

Step-by-step explanation:

It would be the best way to split up the numbers to better answer the question

Answer:

3) C(m) = 35 + 0.50m