7th grade math help me pleaseee

Answer:

Step-by-step explanation:

x=9i. imaginary numbers, you have a negative under the radical, you take a 9 and a i out

We want to find an absolute value equation such that its solutions are 4 and 11.

We will get: |x - 7.5| = 3.5

Let's see how we can get that.

We should start by the general absolute value equation:

|x - a| = b

This can be decomposed into two equations:

x - a = b

x - a = -b

Both of these must be true, one for each of the given solutions of the equation, now we need to replace these solutions. Let's use the largest solution in the equation where b is positive.

11 -a = b

4 - a = -b

Now we have a system of equations, to solve it we can see that we have the same variable isolated in the two equations, then we can rewrite:

11 - a  = b

-(4 - a) = b

then:

11 - a = b = -(4 - a)

11 - a = -4 + a

11 + 4 = a + a

15 = 2*a

15/2 = a = 7.5

Then we can use:

11 - a = b

11 - 7.5 = b = 3.5

Now we know the values of a and b, we just need to replace them in the general equation to get:

|x - 7.5| = 3.5

This is the absolute value equation we were searching.

If you want to learn more, you can read:

https://brainly.com/question/11096127

Answer: $3.58

Step-by-step explanation:

Since the cost is increasing, you need to add the two values together.

$3.49 + $0.09 = $3.58

The price of gasoline after the increase is $3.58.

Answer:

Four square root of five

Step-by-step explanation:

the square root of ten:

[tex]\sqrt{10}[/tex]

The square root of eight:

[tex]\sqrt{8}[/tex]

The square root of ten times square root of eight:

You would have to multiply 10 square root by 8 square root

so, 10 square root times 8 square root is 80 square root

[tex]\sqrt{80}=\sqrt{16} = \sqrt{16}\sqrt{5} =4 \sqrt{5}[/tex]

The answer is Four square root of 5

Hope this helped! :)

May i have brainliest!

Answer:

4 square root of 5

Step-by-step explanation:

Answer:

3

Step-by-step explanation:

Answer:

no

Step-by-step explanation:

Answer:

1 and 4- Yes

2, 3, 5, 6 - No

Step-by-step explanation:

1.

Yes. Each input has corresponding output

2.

No. Repeat inputs with different outputs

3.

No. Doesn't pass vertical line test. One input with different outputs.

4.

Yes. Unique inputs and outputs.

5.

No. One input with two outputs

6.

No. One input with two outputs.

Answer:

2

Step-by-step explanation:

i believe it's 2 my dude

Answer:

2

Step-by-step explanation:

If you have one apple, and add another, you now have two. You can count 1,2,3 or use fingers

Step-by-step explanation:

to get the original slope, we need to bring the line equation to

y = ...

and the slope is the factor of x.

x + 3y = 27

3y = -x + 27

y = -1/3 x + 9

so, the original slope is -1/3.

the perpendicular slope turns this upside-down and flips the sign : 3/1 = 3.

as the slope is the ratio "y coordinate change / x coordinate change".

we can use the point-slope form for the new line equation :

y - y1 = m(x - x1)

with m being the slope, and (x1, y1) being a point on the line.

so,

y - 6 = 3(x - 1)

simplified that is

y - 6 = 3x - 3

y = 3x + 3

that is then the slope-intercept form (+3 being the interception point on the y-axis).

Answer:

y = 3x + 3

Step-by-step explanation:

The answer is simple and plain.

Answer:

y = 3/4x - 2

Step-by-step explanation:

slope intercept form: y = mx + b

y-intercept(when x= 0) is given by b

slope is given by m

lets find the slope using the two given points, (4,1) and (8,4)

m = y2-y1 / x2-x1

m = 4 - 1 / 8 - 4

m = 3/4

Now use any of the given points to begin writing your equation, which will help you find the y intercept - ill use (4,1).

1 = 3/4(4) - b

1 = 3 - b

b = -2

now you have m and b so you can finish writing your equation.

y = mx + b

y = 3/4x - 2

Answer:

Step-by-step explanation:

100%

Answer:

it would be around 274

Step-by-step explanation:

if you divide 8,502 by 31 you will get 274.258064516129, so the estimate would be 274.

each classroom donated about 274 canned food items.

Answer:

75cm²

Step-by-step explanation:

area of parallelogram= base*height

area=15*5=75cm²

Answer:

3. 4 cm apart

4. 12 feet

Step-by-step explanation:

3. since the scale is every 1cm is 14 miles than to find 56 miles on a map you should divide 56/14 which would equal 4cm.

4. since the scale is every 1 inch is 6 feet and you have to find how long a motorcycle is if it was 2 in on a diagram, then you should multiple 6 by 2 which would equal 12 feet

hope this helps

Answer:

40 members

Step-by-step explanation:

Let the total members = x

Given the following data;

Number of sixth graders = 12 members

The mathematical expression is;

[tex] \frac {30}{100} * x = 12[/tex]

[tex] 0.3x = 12[/tex]

[tex] x = \frac {12}{0.3} [/tex]

x = 40

Therefore, the total members in the middle school coding club is 40 members.

Answer:

Width = 12 m

Step-by-step explanation:

Width = w

Perimeter = 56 m

2*length + 2*width =  56

2* 16    + 2w  = 56

        32 + 2w = 56

               2w = 56 - 32

               2w = 24

                 w = 24/2

                 w = 12 m

Width = 12 m

Answer:

[tex]A = 6[/tex].

Step-by-step explanation:

Let [tex]a[/tex] denote a constant (a number, rather than a variable like [tex]x[/tex].)

Let [tex]f(x)[/tex] denote an expression about [tex]x[/tex] (for example,

By the factor theorem, if [tex](x - a)[/tex] is a factor of [tex]f(x)[/tex], then [tex]f(a) = 0[/tex]. In other words, if all mentions of [tex]x[/tex] in the expression [tex]f(x)\![/tex] are replaced with [tex]a[/tex], then the expression should evaluate to zero.

[tex](x + 3)[/tex] is equivalent to [tex](x - (-3))[/tex]. That is: [tex]a = -3[/tex].

Replace all mentions of [tex]x[/tex] in [tex]x^3 - x^2 - 10\, x + A[/tex] by [tex](-3)[/tex] to get:

[tex](-3)^3 - (-3)^2 - 10\times (-3) + A[/tex].

That should evaluate to zero. Therefore: [tex]-27 - 9 + 30 + A = 0[/tex]. Solve for [tex]A[/tex] to get [tex]A = 6[/tex].

Answer:A

Step-by-step explanation:

I got it correct on the test

Answer:

Lo siento, solo necesitaba los puntos

Step-by-step explanation:

Lo siento, solo necesitaba los puntos

Lo siento, solo necesitaba los puntos

Lo siento, solo necesitaba los puntosvv

Lo siento, solo necesitaba los puntos

Lo siento, solo necesitaba los puntosvvv

Answer:

2nd option

Step-by-step explanation:

-1 < x + 3 < 5

Subtract 3 from both sides;

-4 < x < 2

Answer: 80

Step-by-step explanation: If he is 20% complete, then 20 x 5 is 100. So if we want to get 100%, then we have the multiply. Now he did 16 questions, so we have to multiply 16 five times. 16 x 5

Hoped this helped!

I believe it is 56 degrees. that's the answer I put in and I got it right

Answer:

The remainder is -9

So, Option A is correct.

Step-by-step explanation:

We need to divide the polynomial [tex]4x^3-7x^2-13[/tex] by [tex]x-2[/tex] and determine the remainder.

The division is shown in the figure attached.

The remainder is -9

So, Option A is correct.

Answer:

A, -9

Step-by-step explanation:

Answer: A rational expression is a ratio of two polynomials.

Step-by-step explanation: To add or subtract two rational expressions with the same denominator, we simply add or subtract the numerators and write the result over the common denominator. When the denominators are not the same, we must manipulate them so that they become the same. In other words, we must find a common denominator.

Answer:

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

Step-by-step explanation:

Answer:

Step-by-step explanation:

perimeter = semicircle (x2) + parallelogram side (x2)

                = 1/2 π 12 (x2) + 15 (x2)

               = 37.7 + 30

               = 67.7

Answer:

0.5

Step-by-step explanation:

-14

Step-by-step explanation:

this is very eeasy question ookay step 1 cross multiply -2/3 *-3/4 okay and answer is -6 and -8 = -14 ookay sovled