i need help ASAP pleaseeee
Solve the two-step equation.

-9x + 0.4 = 4

Which operation must be performed to move all the constants to the right side of the equation?


Then, which operation must be performed to isolate the variable?


The solution to the equation is x =
.

Answer:

MN

\(= \sqrt{4a^2+4b^2}= 2\sqrt{a^2+b^2}\)

Step-by-step explanation:

From the figure attached,

ΔMON is a right triangle and coordinates of the points M and N are M(0, 2b) and N(2a, 0).

Coordinates of midpoint P → \((\frac{2a+0}{2}, \frac{0+2b}{2})\)

From the formula of the distance between two points,

\(d = \sqrt{(x_{2}-x_{1})^2+(y_{2}-y_{1})^2}\)

\(\texttt {MN} = \sqrt{(2a-0)^2+(0-2b)^2}\\\\ = \sqrt{4a^2+4b^2}\\\\ = 2\sqrt{a^2+b^2}\)

Similarly, OP

\(= \sqrt{(0-a)^2+(0-b)^2}\\\\ = \sqrt{a^2+b^2}\)

Therefore, OP

\(= \frac{1}{2}(MN)\)

and MN

\(= \sqrt{4a^2+4b^2}= 2\sqrt{a^2+b^2}\)

Answer:

$47.25

Step-by-step explanation:

Add $6.75 7 times

Answer:

Zero

Step-by-step explanation:

because, if the Discriminant of f is positive, it intersects the x-axis twice; if it’s negative, it intersects the x axis 0 times, but if it intersects the x axis or touches it in 1 point, then the Discriminant is 0!

As you can see in this graph, the x-axis and parabola only touch/intersect in 1 point, so the Discriminant of f is zero

Hope this helps!

Answer: Discriminant is zero

Step-by-step explanation:

If negative, the vertex of the graph will be above the x-axis, if positive it will be below the x-axis, and zero if it is directly on the x-axis.

Answer:

980 feet per minute

Step-by-step explanation:

Answer:

76-24= 52

Explanation:

Answer:

85 degrees

Step-by-step explanation:

Answer:

36.85 ft

Step-by-step explanation:

3 feet on either end + 6 feet on either side + circumference of the circle

3 + 3 + 6 + 6 + circumference of the circle

18 + circumference of the circle

You can find the circle's diameter by subtracting 6 from 12.  You get 6.  You can find the radius by dividing the diameter by 2.  You get 3.

The formula for circumference is 2·π·Radius

2 · π · 3 = 6 · π = 6 · 3.14 ≈ 36.85

\( \frac{(1120 - 0)}{(16 - 0)} = \frac{1120}{16} = 70\)

70 is the slope

Answer:

-5

Step-by-step explanation:

Answer:

m=-5

Step-by-step explanation:

m - 13= -18

add 13 to both sides

m - 13 + 13 = -18 + 13

m = -5

Answer:

You've asked all day and no one is answering. Go to mathaway.com and it will give you the answer

Step-by-step explanation:

Problem 1

Answer: AD = 9

-------------------------------------------------

Work Shown:

Focus on triangle ADB, which is the smaller triangle on the left.

We have these side lengths

AD = unknown leg

BD = 12 = known leg

AB = 15 = known hypotenuse

Let's apply the Pythagorean Theorem to find the unknown leg

a^2 + b^2 = c^2

(AD)^2 + (BD)^2 = (AB)^2

(AD)^2 + (12)^2 = (15)^2

(AD)^2 + 144 = 225

(AD)^2 = 225-144

(AD)^2 = 81

AD = sqrt(81)

AD = 9

Side AD is 9 units long.

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

Problem 2

Answer: AC = 25

-------------------------------------------------

Work Shown:

AC = AD + DC .... segment addition postulate

AC = 9 + 16 ..... substitution; refer to problem 1

AC = 25

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

Problem 3

Answer: Triangle ABC is a right triangle.

-------------------------------------------------

Work Shown:

The Pythagorean Theorem Converse says "if a^2+b^2 = c^2 is a true equation, then the triangle with sides a,b,c is a right triangle". Keep in mind that c is always the longest side (hypotenuse). The order of 'a' and b doesn't matter. Convention has us usually do \(a \le b\) but again the order isn't important.

We have these three sides

Plug those values into the equation below. Simplify each side.

a^2+b^2 = c^2

15^2 + 20^2 = 25^2

225 + 400 = 625

625 = 625

We get a true equation. Therefore, triangle ABC is a right triangle.

Answer:

Step-by-step explanation:

Pythagorean = c^2 =a^2 + b^2

we are given c and a   so solve for b

c^-a^2 = b^2

15^2- 12^ = b^2

81= b^2

\(\sqrt{81}\)=b

9=b

AD=b

AC = AD + 16

AC =9 + 16 =25

if it's a right triangle then Pythagorean will work with the sides to make 25

AC^2 = 15^2+20^2

AC = \(\sqrt{625}\)

AC = 25

Answer:

A

Step-by-step explanation:

By proportion that is:(54/150) * 8450= 54 * 56 1/3= 3042

Answer:

By proportion that is:(54/150) * 8450= 54 * 56 1/3= 3042

Step-by-step explanation:

Chill dude.                          

Stop with the all caps.    

Step-by-step explanation:

The selling price is $495.

The first washing machine:

- is marked down by 30​%

$495 - 100%

$x - 100% - 30% = 70%

Find the value of x:

x=$495*0.7=$346.50=$347

The second washing machine:

- is marked down by 20​% with an additional 10​% off

$495 - 100%

$y - 100% - 20% = 80%

Find y:

Y=$495*0.8=$396

Now,

$396 - 100%

$z - 100% - 10% = 90%

Find z:

Z=$396*0.9=$356.40=$356

the sale price of the first washing machine is $347 and the sale price of the second washing machine is $356. The second machine is more expensive.

Answer: the price of the first washing machine is $347 and the price of the second washing machine is $356. Then compare them 347 O 356

It would be < because the sale price of the machine is more.

Step-by-step explanation: The first machine is marked down(in price) by 30% so 440-100 ($440 is = to 100 because its saying the price is 100% no mark downs or anything. Then you find the price is $347 since it has a 30% mark down.

The second machine is marked down by 20% with an extra 10% off, so 440-100 (100% in price) now you find how much that turns into, and it turns into $356

so the first machine is this better one and cheaper one.

please consider making me brainliest i really need it :D

Answer:

Step-by-step explanation:

\(C=2\pi r,\ r=4.5,\ L=C+10\\ \\ L=2(4.5)\pi +10\\ \\ L=9\pi +10\\ \\ L\approx 38.27in\)

Answer:

45

Step-by-step explanation:

what i did was 4.5 x 10 and i got 45

Answer:

decreased by 220 dollars

Answer:

The value on her gift card decreased by $220 dollars.

Step-by-step explanation:

We don't know what amount she originally had on the card, but we can still find out how much she lost by adding up the prices of the things she bought/rented. First, we need to find the cost of renting the tiller for 6 days, it costs $36 per day, so we need to do 6 times 36, which gives us $216. Then we need to add the $4 for the rake.

$216 + $4 = $220

Answer:

5

Step-by-step explanation:

If you make a table you have

x     y

-4   -16

-2   -6

0     4

2     14

4    24

the x variable increases by a constant or +2, and the y variable increases by a constant of +10. so if you use the equation m= \(\frac{y1-y1}{x1-x2\\}\) you get\(\frac{-16 - (-6)}{-4 - (-2)}\) which would simplify to \(\frac{-10}{-2}\), which equals the slope of 5.

Answer: 5

Step-by-step explanation:

Answer:

GCF is 18 and Factor is: 18(x-2)

Step-by-step explanation:

To Factor 18x-36, you want to find the GCF. So the GCF here is 18. So let's spilt 18 out of each term.

18x+18(-2)

18(x-2)

So the factoring answer is 18(x-2)

The GCF is 18.

Answer:18

Step-by-step explanation:

the GCF is 18.

a) The predicted heating cost for a month with temperature of 25 ºF is given as follows: $65.70.

b) The predicted heating cost for a month with temperature of 0 ºF is given as follows: $96.20

c) For an increase of one degree Fahrenheit, the predicted decrease in the cost is of $1.22.

The slope-intercept representation of a linear function is given by the equation presented as follows:

y = mx + b

The coefficients of the function and their meaning are described as follows:

The slope and the intercept for the function in this problem are given as follows:

Hence, the predicted cost for a month with temperature of 25ºF is given as follows:

y = -1.22(25) + 96.20 = $65.70.

More can be learned about linear functions at https://brainly.com/question/24808124

#SPJ1

Answer:

-0.533

Step-by-step explanation:

Let's rewrite this question a bit.

\(2\frac{3}{5}=\frac{13}{5} \\\)

So, if we want to divide \(\frac{3}{5}\) by \(-3\), we can write it like this,

\(\frac{3}{5} \div -3=\frac{3}{5} \times -\frac{1}{3}= -\frac{1}{5}\)

Now, we are also asked to divide \(\frac{3}{5}\) by \(\frac{3}{4}\).

\(\frac{3}{5} \div \frac{3}{4}=\frac{3}{5} \times \frac{4}{3}= -\frac{4}{5}\)

Hope this helps! :)

A small thing I would like to mention -> In case this wasn't clear or you didn't know, when dividing fractions, we take the reciprocal of the 2nd fraction and then multiply into the first.

So a general formula would look like this:

Let \(a,b\) be fractions, then if we want to divide we do,

\(a \div b = a \times \frac{1}{b}\)

Answer:

A, B, ad C

In order to find the ratio of something you must:

Add the parts of the ratio to find the total number of parts.

Find the value of each part of the ratio by dividing the number by the total number of parts calculated in step 1.

Multiply each part of the original ratio by the value of each part calculated in step 2.

Answer:

a is the answer sweetie because there are 6 boxes each box contains 8 ounces of strawberries and each basket weighs 66 ounce and there are three items they mentioned

Answer:

3,931,000x = 9,400,000

Step-by-step explanation:

3,931,000x = 9,400,000

x= how much larger North America is than Europe