8 questions; if you solve all of them (with the numbers next to the question) you will get 80 points.

Write a formula for the given measure. Tell what each variable it represents. Identify which variable depends on which formula.
4. the perimeter of a rectangle with a length of 5 inches
5. the area of a trapezoid with base lengths of 7 feet and 11 feet
Tell whether the ordered pair is a solution of the equation.
6. y = 4x; (0.4)
7. y = 3x; (2,6)
8. y = 5x - 10; (3,5)
9. y = x+7; (1,6)
10. y = 7x + 2; (2,0)
11. y = 2x - 3; (4,5)

Answers

Answer 1

Answer:

there is only 40

Step-by-step explanation:


Related Questions

Help please!!!!!!!!!!!!!!!!!!

Answers

Answer:

trapezoid

Step-by-step explanation:

PLEASE HELP ME THIS IS DUE SOON RJFVRPIVNOIEL

Answers

Answer:

you can calculate it like two rectangle volume

A lady traveled 100 kilometers at a rate of 30 kilometers an hour. If she wants her return trip to be three-fourths of her initial trip, at what rate must she return?

Answers

Answer:

Step-by-step explanation:

100/30=3  1/3hrs to go

3  1/3*3/4=  

10/3*3/4=30

30/12=2  1/5hrs return

100/2  1/2=

100/(5/2)=

100*2/5=200/5=40

100/2.5=40mph return

Help me with this question please! I’ll mark you brainlist and give 5 stars for this!

Answers

First question is A

Answer:  That is the correct answer

Step-by-step explanation:

for the first one the answer is A. x + 84 = 180

the second one is C. AB/DC = WX/ZY

What is 2.5x0.012=

(20 POINTS)

Answers

Answer: 0.03

Step-by-step explanation:

Answer:

0.03

Step-by-step explanation:

[tex]\frac{25}{10}[/tex]×[tex]\frac{12}{1000}[/tex]=

[tex]\frac{300}{10000}[/tex]=0.03

HELP

These triangles
are congruent by
the triangle
congruence
postulate [ ? ).
A. SSS
B. SAS
C. Neither, they are not congruent

Answers

Answer:

C

Step-by-step explanation:

Answer:

SSS

Step-by-step explanation:

right on acellus

Hector's parents sent 24 text messages last month. This is 16% of the total recorded on the bill. How many total text messages did the family send last month?

Answers

Answer:

I cant answer, but I can help, divide 100 by 16, than multiply what you get from that with 24, it'll look like this:

(100÷16)x24=A

PLEASE HELPPPP ASAPPP !! thank you in advance

Answers

Answer:

hakdog keep it up po11828282882827272++--yyyxxxxxx

a ² + b ² + 2 (ab + bc + ca)

Answers

Answer: = a^2 + 2ab + 2(ac+ b^2 + 2bc)

Step-by-step explanation:

Find the area of the geometric figure.
Square
6.5

Answers

The area of the geometric figure which is the square will be 42.25.

What will be the area of the square?

It should be noted that a square simply means a shape that has all its sides equal. It should be noted that the area of a square will be calculated as:

= Side × Side

In this case, the side is given as 6.5. Therefore, it should be noted that the area will be:

Area of a square = Side × Side

= 6.5 × 6.5

= 42.25

Therefore, the area of the geometric figure which is the square will be 42.25.

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Help me with questions 7&8 plssssss

Answers

Hi the slope for problem 7 is m=1/8
The slope for number 8 is m=-1/12

^starigjt line equation (SLE)^

how to find slope of line (m)

=y2 - y1/x2 - x1

7. there, (16,2) occupies the x1 (16) and y1 (2) positions.

and, (32,4) occupies the x2 (32) and y2 (4) positions.

ok, enter:

m = y2 - y1/ x2 - x1

=4 - 2 / 32 - 16

=2/16

= 1/8

8. there, (-2,17) occupies the x1 (-2) and y1 (17) positions.

and, (-1,5) occupies the x2 (-1) and y2 (5) positions.

ok, enter:

m= y2 - y1/ x2 - x1

=5 - 17/ -1 - (-2)

=5 - 17 / -1 + 2

= -12 / 1

= -12

FINALLY FOUND, MODERATOR!!!

a point in space $(x,y,z)$ is randomly selected so that $-1\le x \le 1$,$-1\le y \le 1$,$-1\le z \le 1$. what is the probability that $x^2 y^2 z^2\le 1$?

Answers

Probability that [tex]x^2+y^2+z^2\leq 1[/tex] is 0.523

Given that a point (x, y, z) is in space which is randomly selected as

[tex]-1\le x \le 1$,$-1\le y \le 1$,$-1\le z \le 1$[/tex]

These three equations represents a cube in space.

Length of each side of the cube = 1 - -1 = 2

Now  [tex]x^2+y^2+z^2\leq 1[/tex]  represents a sphere with center (0, 0, 0) and of radius less than or equal to 1.

So we can imagine that this sphere is inside the cube.

So the probability that   [tex]x^2+y^2+z^2\leq 1[/tex]  = Volume of the sphere/Volume of the cube

Volume of sphere with radius 1 = [tex]\frac{4}{3} \pi r^3=\frac{4}{3} \pi \times 1 = \frac{4}{3}\times 3.14 = 4.186[/tex] cubic unit

Volume of the cube of length 2 = [tex]2^3 = 8[/tex] cubic units

So the probability that  [tex]x^2+y^2+z^2\leq 1[/tex]  = 4.186/8 = 0.523

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20 points please help What is the name of the ray shown? A. ga B. ag C. ag D. ga

Answers

The name of the ray shown would be: C. ray AG.

What is a Ray?

A ray can be defined as a part of a line which has a fixed starting point that is called an endpoint and extends to infinity towards the opposite direction of the fixed point, called the endpoint.

How to name a Ray?

The first letter to use when naming a ray is the letter of the endpoint, which is the starting point of the ray, then use another letter that the ray passes through to infinity.  There would be only one arrow head facing the right, drawn on top of the letters used in naming the ray.

The image shows an endpoint of A, which marks the starting point. The line extends from G to infinity as well.

Therefore, the name of the ray shown would be: C. ray AG.

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What’s the square root of 36

Answers

Answer:

6

Step-by-step explanation:

sqrt(36) = 6

Answer:

1296

Step-by-step explanation:

36 x 36 = 1296

-5 = w-3 what is w
please help

Answers

Answer

w=-2

Step-by-step explanation:

-5=w-3

-5+3=w-3+3

-2=w

plezz give me brainiest

At Charles School, 1/5 of the 75 students in seventh grade play in the jazz band. how many seventh graders play in the jazz band?

Answers

Answer:

15

Step-by-step explanation:

15 seventh graders play in the jazz band as per the given ratio.

What is the ratio?

One quantity can be expressed as a fraction of other quantities using a ratio, which is a number. Only when the two numbers in a ratio have the same unit can they be compared. Ratios are used to compare two objects.

Given At Charles School, 1/5 of the 75 students in seventh-grade play in the jazz band.

In the form of a ratio

1/5 the students out of 75 play in the jazz band

Total students play in the jazz band = 75* 1/5

Total students play in the jazz band = 15

Therefore, The jazz band has 15 seventh graders playing according to the ratio.

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Which of the following could NOT be the measures of the angles of a triangle?
A. 30°-120°-30°
B. 40°-40°-100°
C. 60°-60°-60°
D. 70°-50°-70°

Answers

Answer:

D

Step-by-step explanation:

The Triangle Sum theorem states the angles of all triangles will add up to 180.

70 + 50 + 70 = 190. Therefore, this cannot be a triangle.

how do i make m the subject of this formula.
y=3mt-a^2m

Answers

Here’s the answer::::

Andre wants to purchase some onions and tomatoes to make tomato soup. The recipe states that four times the number of tomatoes, x , plus five times the number of onions, y, should produce 56 bowls of tomato soup. A different recipe states that two times the number or tomatoes and onions used in the soup when Andre adds the two recipes together?

Answers

Answer:

Tomatoes = 11.5

Onions = 2

Step-by-step explanation:

Andre wants to purchase some onions and tomatoes to make tomato soup. The recipe states that four times the number of tomatoes, , plus five times the number of onions, x, should produce 56 bowls of tomato soup. A different recipe states that two times the number of tomatoes used minus the number of onions used should produce 21 bowls of tomato soup. What is the resulting recipe for the number or tomatoes and onions used in the soup when Andre adds the two recipes together?

Let

Tomatoes = x

Onions = y

Recipe 1:

4x + 5y = 56

Recipe 2:

2x - y = 21

4x + 5y = 56 (1)

2x - y = 21 (2)

Multiply (2) by 5

4x + 5y = 56 (1)

10x - 5y = 105 (3)

Add

10x + 4x = 105 + 56

14x = 161

x = 161 / 14

= 11.5

Substitute x =11.5 into

2x - y = 21

2(11.5) - y = 21

23 - y = 21

-y = 21 - 23

-y = -2

y = 2

Tomatoes = 11.5

Onions = 2

Simplify the following surd expressions
a) 7/3 - 2/3 + V3 - 3V3

Answers

Answer:

[tex]\frac{7}{3}-\frac{2}{3}+\sqrt{3}-3\sqrt{3}=\frac{5}{3}-2\sqrt{3}[/tex]    

Step-by-step explanation:

Given the expression

[tex]\frac{7}{3}\:-\:\frac{2}{3}\:+\:v^3\:-\:3v^3[/tex]

solving the expression

[tex]\frac{7}{3}\:-\:\frac{2}{3}\:+\:\sqrt{3}-3\sqrt{3}[/tex]

combine the fractions i.e [tex]\frac{7}{3}-\frac{2}{3}=\frac{5}{3}[/tex]

[tex]\frac{7}{3}\:-\:\frac{2}{3}\:+\:\sqrt{3}-3\sqrt{3}=\frac{5}{3}+\sqrt{3}-3\sqrt{3}[/tex]

add similar elements  i.e [tex]\sqrt{3}-3\sqrt{3}=-2\sqrt{3}[/tex]

                                 [tex]=\frac{5}{3}-2\sqrt{3}[/tex]      

Thus,

[tex]\frac{7}{3}-\frac{2}{3}+\sqrt{3}-3\sqrt{3}=\frac{5}{3}-2\sqrt{3}[/tex]                        

A bank offers an annual simple interest rate of 9% on home improvement
loans. Tobias borrowed $20,000 over a period of 4 years. How much did
he repay altogether?

Answers

Answer:

Tobias repayed a total of $7,200.

Step-by-step explanation:

If Tobias borrowed $20,000, and the annual interest rate is 9% of this per year, then we need to find 9% of 20,000.

20,000 x 0.09 = 1,800

Therefore, the yearly interest rate is $1,800. Now, we need to multiply this by 4.

1,800 x 4 = 7,200

Therefore, Tobias repayed a total of $7,200.

Hope this helps! :D

What is the answer to log(10³x) =?

Answers

The value of the logarithmic expression log(10³ x) is 3 + log(x).

The opposite of exponential functions is logarithmic functions. The exponential function y = aˣ has the inverse, [tex]x=a^{y}[/tex]. The exponential equation [tex]x=a^{y}[/tex] is defined as being identical to the logarithmic function y = logₐ x.

The properties of logarithm are:

Product rule: logₐ (mn) = logₐ m + logₐ n

Quotient rule: logₐ (m/n) = logₐ m – logₐ n

Power rule: logₐ (mn) = n( logₐ m )

Consider the logarithmic expression,

a = log ( 10³ x )

Using the property of logarithm:

logₐ ( mn ) = logₐ m + logₐ n

Then,

a = log( 10³ x )

a = log( 10³ × x)

a = log( 10³ ) + log( x )

By using the property of logarithm:

logₐ mⁿ = n(  logₐ m )

So,

a = 3( log 10 ) + log( x )

a = 3 + log ( x )

Therefore, log( 10³ x ) = 3 + log ( x ).

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[tex]Given \: cotA = \sqrt{\dfrac{1}{3}}[/tex]

Find all other trigonometric ratios. ​

Answers

Given :

[tex] \tt cotA = \sqrt{ \dfrac{1}{3}}[/tex]

[tex] \tt \implies cotA = \dfrac{1}{\sqrt{3}}[/tex]

To Find :

All other trigonometric ratios, which are :

sinAcosAtanAcosecAsecA

Solution :

Let's make a diagram of right angled triangle ABC.

Now, From point A,

AC = Hypotenuse

BC = Perpendicular

AB = Base

[tex] \tt We \: are \: given, \: cotA = \dfrac{1}{\sqrt{3}}[/tex]

[tex] \tt We \: know \: that \: cot \theta = \dfrac{base}{perpendicular}[/tex]

[tex] \tt \implies \dfrac{base}{perpendicular} = \dfrac{1}{\sqrt{3}}[/tex]

[tex] \tt \implies \dfrac{AB}{BC} = \dfrac{1}{\sqrt{3}}[/tex]

[tex] \tt \implies AB = 1x \: ; \: BC = \sqrt{3}x \: (x \: is \: positive)[/tex]

Now, by Pythagoras' theorem, we have

AC² = AB² + BC²

[tex] \tt \implies AC^{2} = (1x)^{2} + (\sqrt{3}x)^{2}[/tex]

[tex] \tt \implies AC^{2} = 1x^{2} + 3x^{2}[/tex]

[tex] \tt \implies AC^{2} = 4x^{2}[/tex]

[tex] \tt \implies AC = \sqrt{4x^{2}}[/tex]

[tex] \tt \implies AC = 2x[/tex]

Now,

[tex] \tt sin \theta = \dfrac{perpendicular}{hypotenuse}[/tex]

[tex] \tt \implies sinA = \dfrac{BC}{AC} [/tex]

[tex] \tt \implies sinA = \dfrac{\sqrt{3}x}{2x} [/tex]

[tex] \tt \implies sinA = \dfrac{\sqrt{3}}{2} [/tex]

[tex] \Large \boxed{\tt sinA = \dfrac{\sqrt{3}}{2}} [/tex]

[tex] \tt cos \theta = \dfrac{base}{hypotenuse}[/tex]

[tex] \tt \implies cosA = \dfrac{AB}{AC} [/tex]

[tex] \tt \implies cosA = \dfrac{1x}{2x} [/tex]

[tex] \tt \implies cosA = \dfrac{1}{2} [/tex]

[tex] \Large \boxed{\tt cosA = \dfrac{1}{2}} [/tex]

[tex] \tt tan \theta = \dfrac{perpendicular}{base}[/tex]

[tex] \tt \implies tanA = \dfrac{BC}{AB} [/tex]

[tex] \tt \implies tanA = \dfrac{\sqrt{3}x}{1x} [/tex]

[tex] \tt \implies tanA = \sqrt{3}[/tex]

[tex] \Large \boxed{\tt tanA = \sqrt{3}}[/tex]

[tex] \tt cosec \theta = \dfrac{hypotenuse}{perpendicular}[/tex]

[tex] \tt \implies cosecA = \dfrac{AC}{BC} [/tex]

[tex] \tt \implies cosecA = \dfrac{2x}{\sqrt{3}x} [/tex]

[tex] \tt \implies cosecA = \dfrac{2}{\sqrt{3}}[/tex]

[tex] \Large \boxed{\tt cosecA = \dfrac{2}{\sqrt{3}}}[/tex]

[tex] \tt sec \theta = \dfrac{hypotenuse}{base}[/tex]

[tex] \tt \implies secA = \dfrac{AC}{AB} [/tex]

[tex] \tt \implies secA = \dfrac{2x}{1x} [/tex]

[tex] \tt \implies secA = 2[/tex]

[tex] \Large \boxed{\tt secA = 2}[/tex]

Diagram :-

[tex]\setlength{\unitlength}{2mm}\begin{picture}(0,0)\thicklines\put(0,0){\line(3,0){2.5cm}}\put(0,0){\line(0,3){2.5cm}}\qbezier(12.4,0)(6.6,5)(0,12.4)\put(-2,13){\sf A}\put(13,-2){\sf C}\put(-2,-2){\sf B}\put(-3,6){\sf 1}\put(6,-3){\sf \sqrt3$}\put(7,7){\sf 2}\end{picture}[/tex]

Solution :-

Given ,

cotA = [tex]\sf \sqrt{\dfrac{1}{3}}=\dfrac{1}{\sqrt3}[/tex]

We need to find ,

All the trigonometric identities

First finding the other side of the triangle using Pythagoras theorem .

Hypotenuse² = Base² + Height²

[tex]\to\sf Hypotenuse^2 = (1)^2 + (\sqrt3)^2[/tex]

[tex]\to\sf Hypotenuse^2 = 1 + 3 [/tex]

[tex]\to \sf Hypotenuse = \sqrt4[/tex]

[tex]\to\bf Hypotenuse = 2[/tex]

Now ,

[tex]\rm sinA = \dfrac{opposite}{hypotenuse}=\sf\dfrac{\sqrt3}{2}[/tex]

[tex]\rm cosA = \dfrac{adjacent}{hypotenuse}=\sf\dfrac{1}{2}[/tex]

[tex]\rm tanA = \dfrac{opposite}{adjacent}=\sf\dfrac{\sqrt3}{1}[/tex]

[tex]\rm cosecA=\dfrac{hypotenuse}{adjacent}=\sf\dfrac{2}{\sqrt3}[/tex]

[tex]\rm secA = \dfrac{Hypotenuse}{adjacent}=\sf\dfrac{2}{1}[/tex]

[tex]\rm cotA = Already\; given =\sf \dfrac{1}{\sqrt3}[/tex]

please help asap!!!!!!!!!!!!!!!!!

Answers

That’s a right angle, so it is 90 degrees. It is split into a 39 degree angle and a 51 degree angle.

Magical Gizmos has determined that their costs can be modeled by the function C(x) = 2x ^ 2 - 3x + 7 and their sales can be modeled by the function
R(x) = 2x ^ 2 + 7x - 23
Determine the number of gizmos they need to sell in order to Break Even.


Please help :(


Answers

invalidated and no score will be calculated for you. ... Utilize the information provided for each question to determine your ... the questions or answers prior to the examination and that you have ... 2 The solution of an equation with two variables, x and y, is ... 11 Which function has the greatest y-intercept?

20. What is the slope-intercept form of the equation of the line with a slope of 1/4 and y-intercept at the origin? ​

Answers

Answer

The slope-intercept form of the equation of the line with a slope of 1/4 and y-intercept at the origin:

[tex]y=\frac{1}{4}x[/tex]

Step-by-step explanation:

Given

The slope = m = 1/4The y-intercept is (0, 0)

We know that the slope-intercept form of the line equation is

[tex]y=mx+b[/tex]

where m is the slope and b is the y-intercept.

substituting the values m=1/4 and the y-intercept b=0 to determine the equation in slope-intercept form

[tex]y=mx+b[/tex]

[tex]y=\frac{1}{4}x+0[/tex]

[tex]y=\frac{1}{4}x[/tex]

Thus, the slope-intercept form of the equation of the line with a slope of 1/4 and y-intercept at the origin:

[tex]y=\frac{1}{4}x[/tex]

Find the sum of :
3 7
-4- +2
12​

Answers

Answer:

245 i hope and swer its ok

Step-by-step explanation:

Write the standard form of the line that has a slope - 3/4 intercept of -2Include your work in your final answer Type your answer in the box provided or use the upload option to submit your solution

Answers

Y = -3/4x - 2
Add 2 and subtract y
-3/4x - y = 2
No fractions or negative
Multiply all by 4
-3x - 4y = 8
Now multiply all by (-)
Solution: 3x + 4y = -8

Select True or False for each statement.
True
False
A straight line on a coordinate plane always represents a function
O
The equation y = 2x + 1 represents a function
O

Answers

Answer:

1st. false

2nd. true

Step-by-step explanation:

Itll only be considered a function when it passed the vertical line test.

The equation y=2x+1 is a linear function

Pleaseee helpppp meeee

Answers

Answer:

150

Step-by-step explanation:

The question is unclear. Do they want an angle that is under 180 (to your left) or over 180 (to your right)? I'm guessing that it is just under 180.

Each hour on a clock takes up 30 degrees. Each 5 minutes hand sweep out out 5/60 * 360 = 30 degrees as well. This angle looks like it is 5 minutes to seven if it was on a clock.

So the large angle from 12 oclock would sweep out 210 degrees and that would mean that the left angle would be 150. But the time is not quite 7 o,clock.

My guess would be 150. Remember, this is an estimate. You can't use a protractor on the question.

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