Write an equation in slope intercept form for each line that passes through (-7, -4), perpendicular to y=1/2x +9

Answers

Answer 1

Answer:

y = -2x - 18

Step-by-step explanation:

-4 = -2[-7] + b

14

-18 = b

y = -2x - 18

rate of change [slope]

* Perpendicular Lines have OPPOSITE MULTIPLICATIVE INVERSE RATE OF CHANGES [SLOPES]:

½ → -2

I am joyous to assist you anytime.


Related Questions

Imamu pays $30 each month for his gym membership. What is the change amount of money in his account after 2/3 of a year? A.-120 B.-240 C.-270 D.-360 Bob chose A as the correct answer. How did he get that answer?

Answers

Answer:

[tex]B.-240[/tex]

Bob got that by calculating the change amount of money in Imamu's account after [tex]\frac{1}{3}[/tex] of a year (4 months).

Step-by-step explanation:

You know that Imamu pays $30 each month for his gym membership.

Since there are 12 months in a year, you can find the the number of months that [tex]\frac{2}{3}[/tex] of a year represents:

[tex](12\ months)(\frac{2}{3})=\frac{24\ months}{3}=8\ months[/tex]

Now, in order to find the change amount of money in his account after [tex]\frac{2}{3}[/tex] (8 months), you must solve the following multiplication:

[tex](-30)(8)=-240[/tex]

Bob chose [tex]-120[/tex] (Option A) as the correct answer, but that is incorrect, because he got it by calculating the change amount of money in Imamu's account after [tex]\frac{1}{3}[/tex] of a year (4 months).

Determine whether each pair of triangles is congruent. If so, state whether they are congruent by
SSS, SAS, or ASA. If not, explain why.

Answers

Answer:

yes they're congruent.

Final answer:

The given information does not provide specific triangles or measurements needed to determine congruency, making it impossible to answer the question.

Explanation:

The question asks about determining whether pairs of triangles are congruent and identifying the congruence criteria (SSS, SAS, ASA).

Unfortunately, the provided information does not include any pairs of triangles or any specific measurements needed to determine congruency.

Therefore, it is not possible to answer the question based on the given information.

Calvina makes a car payment of $214.50 every month. Her car loan is for 5 years. How much will she pay in 5 years?

Answers

$12870 hope this helps bebe :)

Solve for b.

2|b| = 2


Write your answers as integers or as proper or improper fractions in simplest form.

b = or b =

Answers

2|b| = 2

2b= 2

divide by 2 to get b, by itself

2b/2= 2/2

b=1

2|b| =- 2

2b= -2

2b/2= -2/2

b= -1

Answer:

b= 1, b= -1

What is the change in temperature from -45°F to - 71°F?

1. 26°F
2. -116°F
3. 116°F
4. -26°F

Answers

The answer to this question would be -26

Hey there you answer is -26°F  Because, if you subtract -45 from -71 you would get -26 because it is still in the negative's place. Hope this helped! Your fellow Brainly user, GalaxyGamingKitty.

What fraction of an inch is 1 cm? I know the answer but don’t know how to show it.

Answers

Final answer:

1 cm is approximately 0.394 inches which is the fraction of an inch for 1 cm. This can be discovered by inverting the known relation (1 in = 2.54 cm) or by using dimensional analysis method.

Explanation:

The subject of your question concerns the conversion between the units of length, centimeters and inches. In measurement, it is known that 1 inch is equal to 2.54 centimeters. However, you asked what fraction of an inch is 1 centimeter. To find this, we need to invert the relation we know. Thus, 1 cm = 1/2.54 inches.

For a clearer understanding, 2.54 cm is exactly 1 inch (by definition). To find the fractional value of 1 cm in inches, we simply take the reciprocal (invert) of 2.54, because we are essentially asking the question, 'How many cm are there in 1 inch?'. This yields about 0.394, and thus 1 cm = 0.394 inch approximately.

Using Dimensional Analysis

Another method to understand this conversion is dimensional analysis. It tells us that we're able to convert one unit to another as long as the units are in the same dimension (in this case, length). So based on the relation 1 inch = 2.54 cm, we establish the conversion factor of 1/2.54 = 0.394 inch/cm. So 1 cm * 0.394 inch/cm gives us 0.394 inch.

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1.
A ball is thrown into the air with an initial velocity of 22 meters per second.
The quadratic function h(t) = -4.9t2 + 22t + 5.5 represents the height of
the ball above the ground, in meters, with respect to time t, in seconds.
Part A: Determine h(3) and explain what it represents.

Answers

Answer:

The ball throw into the air with an initial velocity of 22 meters per second is 27.4 meters above the ground after 3 seconds.

Step-by-step explanation:

The quadratic function [tex]h(t) = -4.9t^2 + 22t + 5.5[/tex] represents the height of the ball above the ground, h(t), in meters, with respect to time, t, in seconds.

To find h(3), substitute t = 3 into the function expression:

[tex]h(3)=-4.9\cdot 3^2+22\cdot 3+5.5\\ \\=-4.9\cdot 9+66+5.5\\ \\=-44.1+71.5\\ \\=27.4[/tex]

Meaning: the ball throw into the air with an initial velocity of 22 meters per second is 27.4 meters above the ground after 3 seconds.

Solve the following equation. Then place the correct number in the box provided. 5x/8+10=2

Answers

Answer:

3 with a remaider of 2

Step-by-step explanation:

10+8=18 5/18=3 with a remainder of 2

5x/8+10=2

-10 each side of the equation

5x/8=-8

multiply each side by 8

5x=-64

divide each side by 5

And then you have your answer x=12 4/5

Hector is dividing students into groups for an HR wants to divide the boys and girls so that each group has the same number of the boys and girls their 21 boys and 56 girls signed up for the hike to how many groups can the students be divided how many boys and how many girls will be in each group.​

Answers

Answer:

7 groups, 3 boys and 8 girls

Step-by-step explanation:

Let total number of groups be [tex]x[/tex]

and total hikers in one group be [tex]y[/tex]

if number of girls and boys in every group is same, then

[tex]\frac{21}{x} + \frac{56}{x} = y[/tex]

[tex]\frac{21 + 56}{x} = y\\x*y = 77[/tex] ....(1)

from (1) [tex]x[/tex] will either be 11 or 7

for [tex]x = 11[/tex] the values won't be real.

For [tex]x = 7\\y = \frac{77}{7} \\y = 11[/tex]

so there will be 7 groups with 11 hikers in each groups and every group will have [tex]\frac{21}{7} = 3[/tex] boys and [tex]\frac{56}{7} = 8[/tex] girls

Find the value of a for which the solution of the inequality is all real numbers.

3x+8+2ax≥3ax−4a
How do I solve for a and what does a stand for please help meeeeeee.

Answers

Answer:

[tex]a=3,\text{ then } x\in(-\infty,\infty)\\ \\a\in(-\infty,3),\text{ then }x\in \left[\dfrac{-4a-8}{3-a},\infty\right)\\ \\a\in(3,\infty),\text{ then }x\in \left(-\infty, \dfrac{-4a-8}{3-a}\right][/tex]

Step-by-step explanation:

In the inequality

[tex]3x+8+2ax\ge 3ax-4a\ \ \ (1)[/tex]

a is an arbitrary real number.

Separate the terms with x into left side and the terms without x in the right side:

[tex]3x+2ax-3ax\ge -4a-8\\ \\3x-ax\ge -4a-8\\ \\(3-a)x\ge -4a-8\ \ \ (2)[/tex]

First, look at the leading coefficient at x. If this coefficient is equal to 0 (when [tex]a=3[/tex]), then the inequality is

[tex]0\ge -4a-8\\ \\0\ge -12-8\ [\text{Substituted }a=3]\\ \\0\ge -20[/tex]

This is true inequality for all x, so at [tex]a=3,[/tex] the inequality (1) has the solution [tex]x\in (-\infty,\infty)[/tex]

Now, if the leading coefficient

[tex]3-a>0\\ \\a<3,[/tex]

then we can divide the inequality (2) by this positive number [tex]3-a[/tex] and get

[tex]x\ge \dfrac{-4a-8}{3-a}[/tex]

If the leading coefficient

[tex]3-a<0\\ \\a>3,[/tex]

then we can divide the inequality (2) by this negative number [tex]3-a[/tex] and get

[tex]x\le \dfrac{-4a-8}{3-a}[/tex]

So, the answer is

[tex]a=3,\text{ then } x\in(-\infty,\infty)\\ \\a\in(-\infty,3),\text{ then }x\in \left[\dfrac{-4a-8}{3-a},\infty\right)\\ \\a\in(3,\infty),\text{ then }x\in \left(-\infty, \dfrac{-4a-8}{3-a}\right][/tex]

I need help I don’t understand this at all

Answers

Answer:

all work is pictured/shown

Find the derivative of y = 2(x^2) - x + 4 at x = 2​

Answers

Answer:

7.

Step-by-step explanation:

y = 2x^2 - x + 4

The derivative y' = 2*2x^(2-1) - 1

= 4x - 1

At x = 2 y' = 4(2) - 1 = 7.

Answer:

7

Step-by-step explanation:

Differentiate using the power rule

[tex]\frac{d}{dx}[/tex](a[tex]x^{n}[/tex]) = na[tex]x^{n-1}[/tex]

Given

y = 2x² - x + 4, then

[tex]\frac{dy}{dx}[/tex] = (2 × 2)x - 1 = 4x - 1

At x = 2 ⇒ [tex]\frac{dy}{dx}[/tex] = (4 × 2) - 1 = 8 - 1 = 7

Find all natural values of x such that x/8 is a proper fraction, and x/4 is an improper fraction.

Answers

Final answer:

The natural numbers for which x/8 is a proper fraction and x/4 is an improper fraction are 4, 5, 6, and 7.

Explanation:

Firstly, let's understand what proper and improper fractions are. A proper fraction is a fraction whose numerator is less than the denominator, and an improper fraction is a fraction whose numerator is equal to or greater than the denominator.

Given that x/8 is a proper fraction and x/4 is an improper fraction, we are looking for a number that is less than 8 (for the proper fraction) and equal to or greater than 4 (for the improper fraction). These restrictions on x mean that x must be in the range 4 ≤ x < 8.

When we consider that x should be a natural number, the only numbers that meet this criterion are 4, 5, 6, and 7. Hence, these are the natural values of x for which x/8 is a proper fraction and x/4 is an improper fraction.

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Final answer:

The values of x that meet both conditions are 5, 6, and 7.

Explanation:

In order to find natural values for x where x/8 is a proper fraction and x/4 is an improper fraction, we must first understand what proper and improper fractions are. A proper fraction is one where the numerator is less than the denominator, whereas an improper fraction has a numerator larger than or equal to the denominator. Given that x/8 must be a proper fraction, x must be less than 8. For x/4 to be an improper fraction, x must be greater than or equal to 4. Therefore, to satisfy both conditions simultaneously, x must fall within the range of 5, 6, or 7. This is because these are the only natural numbers less than 8 and greater than 4.

solve log2 [log3 (log4 x)]=0​

Answers

The correct answer is 2
Final answer:

Solving the nested logarithmic equation log2 [log3 (log4 x)] = 0 requires repeatedly using the concept that y = logb(x) is equivalent to x = by, resulting in x = 64.

Explanation:

To answer your question, we'll need to understand that logarithmic expressions such as log2 [log3 (log4 x)]=0 can be solved by step-by-step process called exponentiation.

First, knowing that y = logb(x) is equivalent to x = by, we can re-write the equation log2 [log3 (log4 x)] = 0 as log3 (log4 x) = 20.

Then, using the concept that the logarithm of a number raised to an exponent is the product of the exponent and the logarithm of the number, move forward to solve log4 x = 31.

Finally, applying the same rule once more gives us x = 43 = 64.

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What are the solutions to 3x2 + 12x +6=0 ?

Answers

Answer:

[tex]\large\boxed{x=-2-\sqrt2\ or\ x=-2+\sqrt2}[/tex]

Step-by-step explanation:

[tex]3x^2+12x+6=0\qquad\text{divide both sides by 3}\\\\\dfrac{3x^2}{3}+\dfrac{12x}{3}+\dfrac{6}{3}=\dfrac{0}{3}\\\\x^2+4x+2=0\qquad\text{subtract 2 from both sides}\\\\x^2+4x+2-2=0-2\\\\x^2+4x=-2\\\\x^2+2(x)(2)=-2\qquad\text{add}\ 2^2\ \text{to both sides}\\\\x^2+2(x)(2)+2^2=-2+2^2\qquad\text{use}\ (a+b)^2=a^2+2ab+b^2\\\\(x+2)^2=-2+4\\\\(x+2)^2=2\iff x+2=\pm\sqrt2\qquad\text{subtract 2 from both sides}\\\\x=-2\pm\sqrt2[/tex]

The formula to convert °F to °C is C =
Convert 50°C to °F
10°F
20°F
122°F
132°F

Answers

Answer: 113°F

Here you go

Answer:

The answer is 122°F

Step-by-step explanation:

[tex]formula \: (celcius° \times 9 \div 5) + 32[/tex]

F°=(c°×9÷5)+32

F°=(50°×9÷5)+32

F°=(50°×1.8)+32

F°=90+32

F°=122°F

could someone help with the question in the picture, thanks

Answers

Answer:

Step-by-step explanation:

the question is 5/7 divided by 8/12 ​

Answers

Answer:

1 1/14

Step-by-step explanation:

To divide by a fraction, multiply by the reciprocal of that fraction

5/7 x 12/8

Reduce the fraction with 4

5/7 x 3/2

Multiply the fractions

To multiply the fractions, multiply the numerators and denominators separately

15/14

Alternative form is

1  1/14

Answer: 15/14 or 1 1/14

Step-by-step explanation:

Which ratios are equal to each other?

A.1:16 and 2:8

B. 2:32 and 4:8

C. 1:64 and 4:16

D. 1:16 and 4: 64

Answers

Answer:D

Step-by-step explanation:1 divied by 16 =16

4 divied by 64 = 16

Any tutors here for the ASVAB? I need immediate help. ​

Answers

Answer:

I can help :)

My sc is softgurlshere

CHALLENGE To find 1,188 divided by 12, I think about 1,200 divided hun
that's 100 groups of 12. 1,188 has 1 fewer group of 12.

Answers

Answer:

1188 divided by 12 is 99

Answer:

this is a hard one

Step-by-step explanation:

what is 3/10 of the way from (-3,-6) to (9,4)

Answers

we'll first off put the two points in component form, then we'll multiply that by the fraction 3/10 and those coordinates we'll simply add to the first point, anyhow, let's proceed,

[tex]\bf \textit{internal division of a segment using a fraction}\\\\ A(\stackrel{x_1}{-3}~,~\stackrel{y_1}{-6})\qquad B(\stackrel{x_2}{9}~,~\stackrel{y_2}{4})~\hspace{8em} \frac{3}{10}\textit{ of the way from }A\to B \\\\[-0.35em] ~\dotfill\\\\ \stackrel{~\hfill \textit{component form of segment AB}}{ (\stackrel{x_2}{9}-\stackrel{x_1}{(-3)}, \stackrel{y_2}{4}-\stackrel{y_1}{(-6)})\implies (9+3~,~4+6)\qquad \implies \qquad (12,10)} \\\\[-0.35em] ~\dotfill[/tex]

[tex]\bf \stackrel{~\hfill \textit{values to be added to Point A coordinates}} {\cfrac{3}{10}(12,10)\implies \cfrac{3}{10}(12)~,~\cfrac{3}{10}(10)\qquad \implies \qquad \left(\frac{18}{5}~,~3\right)} \\\\\\ \stackrel{\textit{addition of Point A coordinates and values}} {A(-3,-6)+\left( \frac{18}{5},3\right)\implies \left( -3+\frac{18}{5}~~,~~-6+3 \right)\qquad \implies \left( \frac{3}{5}~,~-3\right)}[/tex]

15. The Salton Trough has an elevation of
69 meters below sea level.
The dead Sea Depression is almost 6 times deeper.
Write and find the value of an expression
for the approximate elevation of the Dead Sea Depression.

Answers

Expression:
-69 x 6

Answer:
-414

Answer:

6(-62)

Total: -141

2) According to Consumer Reports magazine, the costs per pound of protein for 20 major-brand beef hot dogs are
$14.23, $21.70, $14.49, $20.49, $14.47, $15.45, $25.25, $24.02, $18.86, $18.86, $30.65, $25.62, $8.12, $ 12.74,
$14.21, $13.39, $22.31, $19.95, $22.90, and $19.78, respectively. If the least expensive is considered the top-
ranked, what is the position in terms of a z-score of Thorn Apple Valley beef hot dogs at $14.23 per pound of
protein?
A) -2.67
B) -0.85
C) 0.85
D) 1.42
E) 2.67
Statistics: How would I find the answer?

Answers

Answer: -0.85

Step-by-step explanation: a = score-mean/ standard deviation

Mean (add them all up and divide by amount) = 18.8745

Standard deviation =

σ2 = Σ(xi - μ)2/N

= 5.333458985499

SCORE = 14.23

= -0.85

if the length of a side of a square is the square route of the area, what is the length of a side for each label?

Answers

Answer:

Area of a square = side times side. Since each side of a square is the same, it can simply be the length of one side squared. If a square has one side of 4 inches, the area would be 4 inches times 4 inches, or 16 square inches.

Step-by-step explanation:

Which of the following statements is false?


If a number is a natural number, then it is rational.

If a number is a whole number, then it is rational.

If a number is a fraction, then it is rational.

If a number is an integer, then it is irrational. ( I think it could be this one but this rational number thing confuses me)


I will mark brainliest!

Answers

Answer: the false one is the last one (if a number is an integer, then it is irrational)

Step-by-step explanation:

Answer:

D is the correct answer.

the angle measures are represented by algebraic expressions. determine the values of x y and z

Answers

Answer:

The value of x = 0.5, y = 0.8 and z = 0.9

Step-by-step explanation:

From the given figure. Let's form the equations

50z + 13 + 45x + [tex]\frac{19}{2}[/tex] = 90°

45x + 50z + 13 + 9.5 = 90

45x + 50z + 22.5 = 90

45x + 50z = 90 - 22.5

45x + 50z = 67.5  --------------------------(1)

[tex]\frac{225y}{2} = 90[/tex]° Because it is a right angle.

225y = 180

y = [tex]\frac{180}{225}[/tex]

y = 0.8   --------------------(2)

44x + 125y + 80z -14 = 180° because they are supplementary angles add upto 180 degrees.

44x + 125y + 80z = 180 + 14

44x +125y + 80z = 194  ------------(3)

Now plug in y = 0.8 in the above equation (3), we get

44x + 125 times 0.8 + 80z = 194

44x + 100 + 80z = 194

44x + 80z = 194 - 100

44x + 80z = 94 ---------------------(4)

Now let's solve the equation (1) and (4) using elimination method.

x = 0.5

Now plug in x = 0.5 in the equation (4) and find the value of z

44(0.5) + 80z = 94

22 + 80z = 94

80z = 94 - 22

80z = 72

z = [tex]\frac{72}{80}[/tex]

z = 0.9

Therefore, the value of x = 0.5, y = 0.8 and z = 0.9

Please answer this correctly

Answers

Answer:

Julie

Step-by-step explanation:

She days she lives farther than Joseph and Joseph lives father than dalton

Answer:

Julie

Step-by-step explanation:

Joseph lives farther from the library than David and Dalton.

We are not sure who is closer to the library, David or Dalton, but Joseph is farther than both.

Joseph                         David          Dalton            Library

or

Joseph                         Dalton          David            Library

Julie lives farther from the library than Joseph, and David lives farther from the library than Dalton. Now we know where David and Dalton go in the figure.

Julie                 Joseph                         David          Dalton            Library

The farthest person from the library is Julie.

Answer: Julie

In a given rectangle, the longer sides are 7 units longer than the shorter sides. If we let the shorter sides be represented as x, write an expression below that represents the perimeter.

A
2x + 7

B
4x2 + 49

C
4x + 49

D
4x + 14

Answers

Answer: D because the two longer sides are 7 unites longer, meaning you need to add 14 (7x2) to the final product

Answer:

Option D [tex]4x+14[/tex]

Step-by-step explanation:

Given: The longer sides are 7 units longer than the shorter sides. The shorter side is x.

To find: Write an expression below that represents the perimeter.

Solution: It is given that the shorter side is x.

The longer side is 7 units longer than the shorter side. So, the longer side is [tex]x+7[/tex]

We know that the perimeter of the rectangle is [tex]2(\text{length}+\text{breadth})[/tex]

So, the expression for the perimeter

[tex]=2(x+x+7)[/tex]

[tex]=2(2x+7)[/tex]

[tex]=4x+14[/tex]

Hence, the expression for perimeter is [tex]4x+14[/tex].

So, option D is correct.

Add or subtract.
7+3+ (-7)
17
3
-3
10

Answers

the correct answer is seventeen (17) i hope this helped you out !!

Answer:

3 is your answer

Step-by-step explanation:

What you do is PEMDAS

7 + 3 + (-7) You will add 7 and 3 together first.

10 + (-7) You will subtract 10 and -7

3 is your answer.

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