pls help me idk what this is

Answer:

Step-by-step explanation:

3x + 4 = - 11

3x = - 11 - 4

3x = - 15

x = - 15/3

x = - 5

Answer:

x = -5

Step-by-step explanation:

3x + 4 = -11

Isolate 3x.

3x = -11 - 4

Evaluate.

3x = -15

Find x.

x = -15 ÷ 3

x = -5

Answer:

4

Step-by-step explanation:

5-1=4

Answer:

B)

Step-by-step explanation:

Assuming the numbers following the variables are exponents, (ex: 8x2, x8), the only function that is linear would be option B. This is because linear functions do not have exponents following their variables. If graphed, t are a straight line.

Answer:

Step-by-step explanation:

x^2-9x-52=0  What 2 numbers when multiplied equal -52 and added equals -9? -13 and 4

(x-13)(+4)

Answer:

3052.08

Step-by-step explanation:

We use the volume formula for spheres

[tex]\frac{4}{3}[/tex]πr³

Plug in 9cm for radius and evaluate

[tex]\frac{4}{3}[/tex]π(9)³

[tex]\frac{4}{3}[/tex]π*729

3052.08

Answer:

12 days

3 degrees

Step-by-step explanation:

Let y be the temperature of the cities after x days have passed.

Temperature of New York City

[tex]y=-3+\dfrac{1}{2}x[/tex]

In Juneau the temperature falls by 1 degree per 4 days. So, in 1 day the temperature falls be [tex]\dfrac{1}{4}[/tex] degree.

The minus sign is due to the fact that the temperature is falling

Temperature in Juneau Alaska

[tex]y=6-\dfrac{1}{4}x[/tex]

We need to find the value of x for which y will be equal

[tex]-3+\dfrac{1}{2}x=6-\dfrac{1}{4}x\\\Rightarrow \dfrac{1}{2}x+\dfrac{1}{4}x=6+3\\\Rightarrow \dfrac{3}{4}x=9\\\Rightarrow x=\\\Rightarrow x=9\times \dfrac{4}{3}\\\Rightarrow x=12\ \text{days}[/tex]

[tex]y=-3+\dfrac{1}{2}x=-3+\dfrac{1}{2}\times 12\\\Rightarrow y=3\ \text{degrees}[/tex]

Hence, in 12 days the temperature will be same in both the cities will be 3 degrees.

Soo, since it's 25% off, I multiplied 27x0.75, and I got 20.25

Soo, the answer is $20.25

Have a great day!

Stay safe and healthy!

Happy holiday seasons!

May I please have brainliest?

Answer:

7%

Step-by-step explanation:

Step one:

given data

The original cost of Sam’s investment is $10,000

Sam calculated his real return to be $10,700

Required:

the interest made from the investment is

10700-10000= $700

Step two:

The ROI is a percentage that tells us the interest made

interest/investment*100

=700/10000*100

=0.07*100

= 7%

The ROI is 7%

Given:

Focus of a parabola = (0,2)

Directrix: y=0.

To find:

The equation of parabola.

Solution:

The equation of parabola is

[tex]y=\dfrac{1}{4p}(x-h)^2+k[/tex]       ...(i)

where, (h,k) is vertex, (h,k+p) is focus, y=k-p is directrix.

Focus : [tex](h,k+p)=(0,2)[/tex]

On comparing both sides, we get

[tex]h=0[/tex]

[tex]k+p=2[/tex]          ...(ii)

On comparing y=k-p and y=0, we get

[tex]k-p=0[/tex]          ...(iii)

Adding (ii) and (iii), we get

[tex]2k=2[/tex]

[tex]k=1[/tex]

Putting k=1 in (ii).

[tex]1+p=2[/tex]

[tex]p=2-1[/tex]

[tex]p=1[/tex]

Putting h=0, k=1 and p=1 in (i).

[tex]y=\dfrac{1}{4(1)}(x-(0))^2+(1)[/tex]

[tex]y=\dfrac{1}{4}x^2+1[/tex]

Therefore, the equation of required parabola is [tex]y=\dfrac{1}{4}x^2+(1)[/tex].

Answer:

First one

Step-by-step explanation:

Y=1/2x+4

You may divide the entire length of the wood by the length of each piece to get how many pieces she has: 6 feet / 3 feet / piece equals two parts. Cynthia therefore has 2, 3 foot long pieces of wood.

Multiplication is the opposite of division. If 3 groups of 4 add up to 12, then 12 divided into 3 groups of equal size results in 4 in each group. Creating equal groups or determining how many people are in each group after a fair distribution is the basic objective of division.

There is a method for dividing by 4 that you can use: the the rule is to divide by 2 twice. For example, if you want to divide 12 by 4, you simply divide 12 by 2, which gives you 6, and then divide that number by 2, which, in this case, gives you 3.

To know more about Divide visit:

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Answer:

A.

Step-by-step explanation:

Answer:

x=-3 y=-6

Step-by-step explanation:

solve for y on the first equation then plug the answer into the second

That's a Congruent Triangle question.

The first thing that we should to analize is it: What figure is EFGH? The question say for us that [tex]\overline{EF} \cong \overline{GH}[/tex] and [tex]\overline{EH} \cong \overline{GF}[/tex], therefore, EFGH is a parallelogram because its parallel sides are congruents (equals).

Now, we should to proof that [tex]\triangle EFH \cong \triangle GHF[/tex]. The simbol "≅" means congruence, that is, [tex]\triangle EFH \cong \triangle GHF[/tex] means that the triangles EFH and GHF are equals.

Let's proof:

[tex]\overline{HF}[/tex] is a diagonal of the parallelogram EFGH. When we have a diagonal in a parallelogram, the opposite angles are congruents (look at the picture: the blue angles are congruent and the red angles are congruents too). Therefore, [tex]E\hat{F}H \cong F\hat{H}G[/tex] and [tex]E\hat{H}F \cong H\hat{F}G[/tex].

Both triangle has a comum side: the diagonal [tex]\overline{HF}[/tex]. The diagonal [tex]\overline{HF}[/tex] is between two angles that we know that are congruents, Therefore, by the case ASA (Angle, Side, Angle), we proof that [tex]\triangle EFH \cong \triangle GHF[/tex].

Answer:

explain please and thank you

Answer:

5x + 8

Step-by-step explanation:

To create an equivalent expression, we are going to simplify the expression as far as we can. To do this, we are going to first distribute what we can.

1. 4(3x+2) -7x

2. Distribute the 4.

3. 12x + 8 - 7x

4. Combine like terms.

5. 12x - 7x = 5x

6. 5x + 8

Answer:

Jared's doctor recommends he consume 30 grams of fiber each day.

Step-by-step explanation:

Jared's doctor recommends he consume 30 grams of fiber each day. We know this is the answer because, if we divide 12 grams by 40%, we get 30 grams which means, 12 grams is 40% of 30 grams.

Answer:

30 grams

Step-by-step explanation:

Let the doctors recommendation be

12g = 40/100 × x

x = 12g ÷ 40/100

x = 12g × 100/40

x = 12g × 5/

x = 60g/

x = 3g

Answer:

The original price of the pants was $30.

Step-by-step explanation:

Let x be equal to the original price of the pants.

Because the pants are 40% off, their final price was 60% of the original price. 60% as a decimal is 0.6. Using this information, we can set up the following equation and solve:

0.6x=18

Divide both sides by 0.6

0.6x/0.6=18/0.6

x=30

I hope this helps!

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

Work Shown:

Compute the function value at the endpoints

[tex]f(x) = \sqrt{4-x}\\\\f(-5) = \sqrt{4-(-5)} = 3\\\\f(4) = \sqrt{4-4} = 0\\\\[/tex]

With a = -5 and b = 4, we have

[tex]f'(c) = \frac{f(b)-f(a)}{b-a}\\\\f'(c) = \frac{f(4)-f(-5)}{4-(-5)}\\\\f'(c) = \frac{0-3}{9}\\\\f'(c) = -\frac{1}{3}\\\\[/tex]

So,

[tex]f(x) = \sqrt{4-x}\\\\f'(x) = -\frac{1}{2\sqrt{4-x}}\\\\f'(c) = -\frac{1}{3}\\\\-\frac{1}{2\sqrt{4-c}} = -\frac{1}{3}\\\\[/tex]

Use algebra to solve for c

[tex]-\frac{1}{2\sqrt{4-c}} = -\frac{1}{3}\\\\\frac{1}{2\sqrt{4-c}} = \frac{1}{3}\\\\3 = 2\sqrt{4-c}\\\\2\sqrt{4-c} = 3\\\\\sqrt{4-c} = \frac{3}{2}\\\\4-c = \frac{9}{4}\\\\c = 4-\frac{9}{4}\\\\c = \frac{16-9}{4}\\\\c = \frac{7}{4}\\\\[/tex]

Answer:

$4 each snack

Step-by-step explanation:

Answer:

x= 4.8

Step-by-step explanation:

5x = 24 and  24/5 = x

Answer:

Step-by-step explanation:

[tex] \ slope\: = \frac{different \: \: in \: y}{different \: in \: x}[/tex]

[tex] \: \: \: \: \: \: \: \: \: \: \: \: \: \: 5 = \frac{(4 - w)}{(9 - 7)} [/tex]

[tex] \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: 5 = \frac{4 - w}{2} [/tex]

Answer:

B

Step-by-step explanation:

We start by finding a solution to the linear inequality

6x-12 > -6

6x > -6 + 12

6x > 6

x > 6/6

x > 1

The correct number line is one with value at 1, facing the right and unshaded

Answer:

48

Step-by-step explanation:

The area is multiplying.

12 x 4 = 48

Hope It Helps

Sorry If I'm Wrong

The minimum number of hours is 5/6 and the inequality is x ≥  5/6 hours.

An inequality is a relationship that compares two numbers and perhaps other mathematical expressions that are not equal. It is most commonly used to compare the sizes of two numbers on a number line.

Let x = the number of hours practicing the drums

we know that Julian needs to spend at least seven hours each week practicing

the drums x ≥ 7  hours

He has already practiced 5*(1/3) hours this week.

Convert mixed number to an improper fraction 5*(1/3)  = 16/3hours.

Subtract 16/3 from 7,

7 - (16/3)

= 5/3

Divide 5/3 by 2,

(5/3)/2

=5/6

Hence,

The inequality that represent the minimum number of hours he needs to practice on each of the two days is x ≥  5/6 hours.

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The given question is not complete.

Julian needs to spend at least seven hours each week practicing the drums. He has already practiced 5 1/3 hours this week. He wants to split the remaining practice time evenly between the last two days of the week. Write an inequality to determine the minimum number of hours he needs to practice on each of the two days.

Answer:

Option C: Jayce's fee for his 10th drive is equal to K dollars is the correct answer.

Step-by-step explanation:

Given that:

M(n) models Jayce's fee (in dollars) for his nth drive on a certain day.

Here,

n means the number of drive.

The statement is given

M(10) = K

10 represents the nth drive of Jayce's.

Therefore,

The given statement represents Jayce's fee for his 10th drive is equal to K dollars.

Hence,

Option C: Jayce's fee for his 10th drive is equal to K dollars is the correct answer.

Answer:

The mass of 10mL of this liquid would be 25g.

Step-by-step explanation:

The formula for mass in relation to density and volume is:

mass=Density*volume

Knowing this, we could plug in the given volumes and solve:

m=Dv

m=(2.5g/mL)*(10mL)

m=25g

I hope this helps!

Answer:

193102

Step-by-step explanation:

245771-52669=193102

Answer:

use desmos graphing and put (3,8) and y=5x-4 it help me

a) f(4) = 3*4 - 4

          = 8

b) h(-3) = 5 - ( - 3)

             = 5 + 3 = 8

c) h(4) - f(-5) = 1 + ( -19)

                     = -18

have a nice day <3

Answer:

8

Step-by-step explanation:

y=kx where k is a constant.

72=12k

k=72/12=6

y=6x

48=6x

x=48/6=8