2t + 9 + 4 + 3t = 23
show your answer no words i just want to copy and paste

Answer:

third one in the photo

Step-by-step explanation:

.............

Answer:

it is 3mm i had the test

Step-by-step explanation:

edge 2021

Answer:

3mm! -w-

Step-by-step explanation:

Answer:

Answer:física cuántica resumen piisssssssss Corona y wo puntos

Step-by-step explanation:

para hoy plissss pra dentro de media hora

Answer:

Step-by-step explanation:

[tex]\frac{6}{\frac{3}{4}}\\ \\ 6\left(\frac{4}{3}\right)\\ \\ 8\ pieces[/tex]

Answer:

Step-by-step explanation:

7 hr/3 pumps

So first we want to find the unit rate which would be...

5.25 hr/1 pump

Now that we found the unit rate we are going to multiply it by 2 because there are 2 pumps...

5.25*2=10.5

So our answer is 10.5 hr/ 2 pumps

                                                                                    YOUR WELCOME!

                                                                                     BRAINLIEST?????

Answer:

y=2

Step-by-step explanation:

all horizontal lines are y=(the y intercept/line height)

Answer:

answer is C 30-40 that the fourth interval

Answer:C

Step-by-step explanation:

Answer:

27 /35

Step-by-step explanation:

Para sumar fracciones, busque el LCD y luego combinar.

Answer:

17 to 24

25 to 32

Step-by-step explanation:

8-1=7

16-9=7

therefore it means we add 7 on the next number which is 17; to get 24,and also to the next number after 24 which is 25 to get 32

Answer: 17 to 24 then 25 and 32

Step-by-step explanation:

Seriously Stephanie u needed help with this? Anyways glad I can help.

Answer:

f(-9) = 243

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Algebra I

Step-by-step explanation:

Step 1: Define

f(x) = 4x² + 7x - 18

f(-9) is x = -9

Step 2: Evaluate

As, we have f(x) = 4x² + 7x - 18, so to find f(- 9) substitute value of x as (-9).

[tex] \tt : \implies f(-9) = 4(-9)² + 7(-9) - 18[/tex]

[tex] \tt : \implies f(-9) = 4 \times 81 + (-63) - 18[/tex]

[tex] \tt : \implies f(-9) = 324 - 63 - 18[/tex]

[tex] \tt : \implies f(-9) = 324 - 81[/tex]

[tex] \tt : \implies f(-9) = 243[/tex]

[tex] \Large \underline{\boxed{\bf{f(-9) = 243}}}[/tex]

Hence, value of f(- 9) = 243.

Answer:

yes

Step-by-step explanation:

Answer:

18

Step-by-step explanation:

Answer: The correct answer is 8

Step-by-step explanation: I'm too lazy to add an explanation :/

Answer:

18a^7

Step-by-step explanation:

[tex]7x + 12 = 9x - 6[/tex]

[tex]7x + 12 - 7x = 9x - 6 - 7x[/tex]

[tex]12 = 2x - 6[/tex]

[tex]12 - 6 = 2x -6 - 6[/tex]

[tex]6 = 2x - 12[/tex]

[tex]6 + 12 = 2x[/tex]

[tex]18 = 2x[/tex]

[tex]18 \div 2 = x[/tex]

[tex]9 = \bold{ x}[/tex]

In pythagoras, c is the hypotenuse. That is AC. Where a is AB and b is BC.

[tex] {c}^{2} = {a}^{2} + {b}^{2} [/tex]

[tex] {(6 x + 5)}^{2} = {(7x + 12)}^{2} + {BC}^{2} [/tex]

[tex] {((6 \times 9) + 5)}^{2} = {((7 \times 9)}^{2} + 12)^{2} +{BC}^{2} [/tex]

[tex] {(54 + 5)}^{2} = {(63 + 12)}^{2} + {BC}^{2} [/tex]

[tex] {59}^{2} = {75}^{2} + {BC}^{2} [/tex]

[tex]3481 = 5625 + {BC}^{2} [/tex]

[tex]3481 - 5625 = {BC}^{2} [/tex]

[tex] - 2144 = {BC}^{2} [/tex]

[tex] \sqrt{ - 2144} = BC[/tex]

Answer:

x=-2

Step-by-step explanation:

2 = 3x+14/4

2x4 = 4x4    4 cancels

8 = 3x+14

8-14 = 14-14    14 cancels

-6 = 3x

-6/3 = 3/3   3 cancels and you're left with x

-2=x

Answer:

Step-by-step explanation:

No this is not proportional , because the ratio of y/x for each one is not same ,

As for 1st one ,

y/x =4/2 =2

for 2nd one ,

y/x=16/4 = 4 and so on

so they re not equal that's why they are not proportional

The answer is.

y = 2, x = -4

Answer:

x=-4

Step-by-step explanation:

First substitute y=3x+14

2x-3(3x+14)=-14

Distribute:

2x-9x-42=-14

Add or subtract like terms

-7x-42=-14

-7x=28

Finally divide both sides by -7

-7x/-7=x

28/-7=(-4)

x=-4

Answer:

$17.55

Step-by-step explanation:

First, converting R percent to r a decimal

r = R/100 = 3%/100 = 0.03 per year,

then, solving our equation

I = 390 × 0.03 × 1.5 = 17.55

I = $ 17.55

The simple interest accumulated

on a principal of $ 390.00

at a rate of 3% per year

for 1.5 years is $ 17.55.

Answer:

the y-values for the x-values, starting with -3, are:

-5, -4, -3, -2, -1, 0, 1

Step-by-step explanation:

for each, plug the x-value into the equation y = x - 2 and get the result

example, when x = -3 then y = (-3 - 2) which is -5

Answer:

Ok I will help you

Answer:

Answer is 1/216.

Step-by-step explanation:

Answer:

b is the right answer

Step-by-step explanation:

Answer:

Your answer is.......

x^3 + 2x^2 + 4x + 8=0 Note.. if x=-2 then whole equation is 0

So, (x+2) is one factor.

x^3 + 2x^2 + 4x + 8

=x^2(x+2)+4(x+2)

(x+2)(x^2+4)

Mark my answer as brainlist. pls pls pls

Answer:

Step-by-step explanation:

common factor of 2a² and 10ab= 2a

Answer:

theres nothing there

...

Step-by-step explanation:

Answer:

???????????????????????

Step-by-step explanation:

?????????????????????????????????????????????????????????????

Answer:

A= (1/2)(X)(2X)

(1/2)(2X^2)

= (2X^2)/2

Answer:

Tally marks

Step-by-step explanation:

It is most likely tally marks because all of the other options are more recent than option b the Greek and Latin letters are dated to be closer to the modern times than the cavemen were.

i think the question is not correct write it again or attach the pic ic

The mean of a data set is the sum of all data elements divided by its count.

The mean weight of the 19 girls is 33.4 kg

Let

[tex]b \to[/tex] boys

[tex]g \to[/tex] girls

[tex]n \to[/tex] the total population

So:

[tex]b = 11[/tex]

[tex]\bar x_b = 31.9[/tex]

[tex]g = 19[/tex]

[tex]n = 30[/tex]

[tex]\bar x = 32.85[/tex]

The mean of all students is calculated as follows:

[tex]\bar x = \frac{\sum x}{n}[/tex]

So, we have:

[tex]\bar x = \frac{\bar x_b \times b + \bar x_g \times g}{n}[/tex]

Substitute known values

[tex]32.85 = \frac{31.9 \times 11 + \bar x_g \times 19}{30}[/tex]

[tex]32.85 = \frac{350.9 + \bar x_g \times 19}{30}[/tex]

Multiply through by 30

[tex]30 \times 32.85 = 350.9 + \bar x_g \times 19[/tex]

[tex]985.5 = 350.9 + \bar x_g \times 19[/tex]

Collect like terms

[tex]985.5 -350.9 = \bar x_g \times 19[/tex]

[tex]634.6 = \bar x_g \times 19[/tex]

Divide through by 19

[tex]33.4 = \bar x_g[/tex]

[tex]\bar x_g = 33.4[/tex]

Hence, the mean weight of the girls is 33.4 kg

Read more about mean at:

https://brainly.com/question/2018505