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Answer:

\sqrt{81 + x^2} = y

\sqrt{y^2 - 7^2} = x

Step-by-step explanation:

They would be Pythagorean Triples.

a^2 + b^2 = c^2

9^2 + x^2 = y^2

\sqrt{81 + x^2} = y

7^2 + x^2 = y^2

x^2 = y^2 - 7^2

\sqrt{y^2 - 7^2} = x

Answer:

v = $100x + $120

Step-by-step explanation:

In this scenario, the fixed amount would be the $120 that Leslie's sister gave her. While $100 would be multiplied by the number of months (x) that have passed by which in this scenario would be our variable since we do not have this information. Lastly, these two values would be added to give us Leslie's total savings (v)

v = $100x + $120

7(8x - 2y) - 5 = 56x - 14y - 5   [multiply the expression in the parentheses by 7 and then subtract 5]

Answer:

z<1.5

Step-by-step explanation:

Answer:

Explanation:

To simplify a polynomial, we have to do two things: 1) combine like terms, and 2) rearrange the terms so that they're written in descending order of exponent.

First, we combine like terms, which requires us to identify the terms that can be added or subtracted from each other. Like terms always have the same variable (with the same exponent) attached to them. For example, you can add 1 "x-squared" to 2 "x-squareds" and get 3 "x-squareds", but 1 "x-squared" plus an "x" can't be combined because they're not like terms.

Let's identify some like terms below.

f(x)=−4x+3x2−7+9x−12x2−5x4

Here you can see that -4x and 9x are like terms. When we combine (add) -4x and 9x, we get 5x. So let's write 5x instead:

f(x)=5x+3x2−7−12x2−5x4

Let's do the same thing with the x-squared terms:

f(x)=5x+3x2−7−12x2−5x4

f(x)=5x−9x2−7−5x4

Now there are no like terms left. Our last step is to organize the terms so that x is written in descending power:

f(x)=−5x4−9x2+5x−7

Step-by-step explanation:

Answer:

Step-by-step explanation:

2(x+3)

=(2)(x+3)

=(2)(x)+(2)(3)

=2x+6

Answer:

X=13

Step-by-step explanation:

So if ΔABC ≅ ΔDEC, then that means that ∠B is ≅ ∠E. Therefore you would write the equation 3x=6x-39 and solve for X to get 13.

Answer:

should be B

Step-by-step explanation:

Hope it helps

Answer:

42 + 26 = 68

Step-by-step explanation:

I hope this helped :)

Answer:

so u put the first point at -1 go down 2 to the right 1

The graph of equation y = - 2x - 1 and the y-intercept (0, - 1) is shown in image.

We have to given that,

To plot the equation y = - 2x - 1 and the y-intercept on the graph.

Since, The equation of line in slope intercept form is,

y = mx + c

Where, m is slope and c in y - intercept.

Here, Equation is,

y = - 2x - 1

After comparing,

y - intercept = - 1

So, y - intercept of equation (0, - 1)

Learn more about the equation of line visit:

https://brainly.com/question/18831322

#SPJ6

Answer:

values in range

Step-by-step explanation:

Answer:

The first one in the left hand corner. And r u from Georgia it look like yu doing iready?

Step-by-step explanation:

Answer:

Dude, it could literally be any number. It doesn't even provide us with a starting number to actually solve the problem with XD

Step-by-step explanation:

Answer:

x = 22

Step-by-step explanation:

90 = (5x - 20)

+20         +20

110 = 5x

/5      /5

22 = x

Hope this helps!

Answer:

5 and 8 i think

Step-by-step explanation:

sorry if you get it wrong

Answer:

Vertex:(0,8)     Axis of Symmetry: x=0

Step-by-step explanation:

Answer:

8a+96

Step-by-step explanation:

8(12+a)

= 96+8a

Answer:

8a+96 or a+12

Step-by-step explanation:

Distribute

Answer:

T= 160 + 4x

Step-by-step explanation:

Giving the following information:

The $160 fine is a fixed cost. It will remain constant.

The $4 additional fine acts as a variable cost. It varies with the number of miles per hour.

To calculate the total cost (T), we need to use the following formula:

T= 160 + 4x

x= miles per hour exceeding the speed limit.

Answer:

$5

Step-by-step explanation:

Using the formula given i=prt we can do the following: 100 x 0.05 x 1= $5

Therefore the total interest after one year would be $5

Answer:

The answer is at the bottom!!

Step-by-step explanation:

Another word for finding the opposite of an integer is negative number of an integer.

Decrease, spend, and decline are examples of words that mean negative. An integer is any positive whole number or its opposite. Here, opposite means sign. So a positive integer has a negative opposite and vice versa.

Hope this helps!!

The value of sin(2x) is [tex]\sin(2x) = - \frac{\sqrt{15}}{8}[/tex]

The cosine ratio is given as:

[tex]\cos(x) = -\frac 14[/tex]

Calculate sine(x) using the following identity equation

[tex]\sin^2(x) + \cos^2(x) = 1[/tex]

So we have:

[tex]\sin^2(x) + (1/4)^2 = 1[/tex]

[tex]\sin^2(x) + 1/16= 1[/tex]

Subtract 1/16 from both sides

[tex]\sin^2(x) = 15/16[/tex]

Take the square root of both sides

[tex]\sin(x) = \pm \sqrt{15/16[/tex]

Given that

tan(x) < 0

It means that:

sin(x) < 0

So, we have:

[tex]\sin(x) = -\sqrt{15/16[/tex]

Simplify

[tex]\sin(x) = \sqrt{15}/4[/tex]

sin(2x) is then calculated as:

[tex]\sin(2x) = 2\sin(x)\cos(x)[/tex]

So, we have:

[tex]\sin(2x) = -2 * \frac{\sqrt{15}}{4} * \frac 14[/tex]

This gives

[tex]\sin(2x) = - \frac{\sqrt{15}}{8}[/tex]

Read more about trigonometry at:

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Answer:

B

Step-by-step explanation:

on Edge

Step-by-step explanation:

day during a two-week period. The

graph models the linear relationship between the water level of the river in feet

and the number of days the water level was measured.

Water Level of River

The initi

28

Ο Ο Ο

The max

24

20

The wate

16

Water Level (ft)

12

o

The water

CLEAR ALL

4

0

2

4

12

6 8 10

Number of Days

Which statement best describes the y-intercept of the graph?

< PREVIOUS

O 3

Os Oo Or

0.8

HH

Answer:

It is C. The initial water level is 16 ft

Step-by-step explanation:

The Y-intercept goes across 16 lol

Answer:

    [tex]X=-\frac{5}{52}[/tex]

Step-by-step explanation:

[tex]-6x+5y=16x+4y=-10\\Let\\-6x+5y=-10(1)\\16x+4y=-10(2)\\8(1)+3(2):\\48x+48x+40y+12y=-80-30\\52y=-110\\y= -\frac{110}{52} =-\frac{55}{26}[/tex]

replace y into (1):

[tex]-6x+5(-\frac{55}{26})=-10\\-6x=-10-5(-\frac{55}{26} \\x= -\frac{5}{52}[/tex]

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Answer:

9 9/25

Step-by-step explanation:

234/25 = 9 9/25

Answer:

the answer is 9 9/25

Step-by-step explanation:

Step-by-step explanation:

The question implies the two angles are equal because of the positioning of the named vertices. m∠A = m∠E so to say.

You can substitute the values and solve the inequality to find x, then solve for m∠A.

m∠A = m∠E; Given (Inferred)

6x - 8 = 4x + 1; Substitution

6x = 4x + 9; Addition Property of Equality

2x = 9; Subtraction Property of Equality

x = 4.5; Division Property of Equality

m∠A = 6x - 8; Given

m∠A = 6(4.5) - 8; Substitution

m∠A = 19; Solve

Hope this helps!!

Answer:

NO NO NO NO NO

Step-by-step explanation:

Answer:

Step-by-step explanation:

Antibodies are immune system-related proteins called immunoglobulins.

Proteins are made up of amino acids, which are small organic molecules made up of carbon, hydrogen, nitrogen, and oxygen.

Hope that helps.