Mathematics High School

I don’t know the scale factor at all. Please help

Answers

Answer 1

Answer:

[tex]scale \: factor = 6 \div 12 = 0.5 \\ ef = 13 \times 0.5 = 7.5[/tex]

Related Questions

Hey everyone, I need a lot of help with this! Please let me know when you can. Thanks!

Answers

$20
I hope you do well on your answer

6. Which expression is equivalent to -21 + 28x? *

Answers

Answer:

21/28

Step-by-step explanation:

Are there any answer choices?

-21 + 28x = 0

28x = 21

Divide by 28

x = 21/28

Helpp me find the answer ASAP!!! plss!!
2.) Whats the answer for EBD
4.) Whats the answer for PNS, NSR, and NPR

Answers

Answer:

Perpendicular

90 degrees

Step-by-step explanation:

When perpendicular lines intersect they form 4 right angles. Since these lines meet at 90-degree angles they must be perpendicular. Also, <ABC is directly across from <EBD, this means they are vertical angles. Vertical angles are congruent, so <EBD measures 90 degrees.

Subtract
(5x^2-8x+7)-(2x^3+3x+1)

Answers

5x^2-11x-2x^3+6

Simplify the expression

answer: = -2x^2+6x+4

One of the legs of a right triangle measures 7 cm and the other leg measures 3 cm.
Find the measure of the hypotenuse. If necessary, round to the nearest tenth.

Answers

Answer:

about 7.6

Step-by-step explanation:

I got the measure of the hypotenuse to be about 7.6 because I did the Pythagorean theorem.

a^2+b^2=c^2

The value of a is the first leg (7cm), and the value of b is the second leg (3cm).

So, 7^2+3^2=58. Next, I found the square root of 58. The square root of 58 is 7.615773106. This value rounded to the nearest tenth is 7.6.

In conclusion, the measure of the hypotenuse rounded to the nearest tenth is about 7.6.

[tex]\sqrt(12-8x)=x-3[/tex]

Answers

Answer:

x = -3 and x = 1

Step-by-step explanation:

first, square each side

12 - 8x = x² - 6x + 9

x² + 2x - 3 = 0

(x - 1)(x + 3) = 0

x = -3

x = 1

n - 6 > -4 or 2n - 9 < -13

Answers

Answer:

the answer is

N>2 or N<-2

Step-by-step explanation:

Answer:

This is the answer N>2 or N<-2

Write an equation in slope-intercept form of the line shown. (8, 4) (4, 1)

Answers

Step-by-step explanation:

m= 1-4/4-8 = -3/-4 = 3/4

y-1 = 3/4(x - 4)

y-1 = 3/4x -3

y = 3/4x -2

All ratios equivalent to -40/5

Answers

Answer:

Equivalent ratios calculator that shows work to find the equivalent ratios for the given ratio with two or more numbers.

Step-by-step explanation:

BRAINLIEST TO CORRECT

Answers

9514 1404 393

Answer:

Step-by-step explanation:

Let x represent the number of members last summer. Then 90% more is 1.9x. We are told this is 114, so we have ...

1.9x = 114

x = 114/1.9 = 60

There were 60 members last summer.

Find the area of the larger sector.
Round to the nearest tenth.

Answers

Answer:

399.6 square miles

Step-by-step explanation:

The Area of a sector =

x/360° × πr²

r = 13.4 miles

x = 255°

Hence,

255°/360° × π × 13.4²

= 399.5739336 square miles

Approximately = 399.6 square miles

Answer:

399.6

Step-by-step explanation:

Activity 2: Identify Me

Direction: Determine whether each pair of triangles is congruent by SSS, SAS, ASAor AAS. If it is not possible to prove that they are congruent, wnte NOT POSSIBLE

Answers

Step-by-step explanation:

SSS axiomSAS axiomASA axiomASA axiomSAS axiomSSS axiom

1. Find the surface area of a geometric box, whose length, breadth and height are respectively
18 cm, 8 cm and 1.8 cm.

Answers

Answer:

259.2

Step-by-step explanation:

multiply 18 x 8 x 1.8 to get 259.2cm

PLZ HELP WILL GIVE BRAINLIEST.

Answers

Answer:

1/24 or 4.17%

Step-by-step explanation:

Probability of chocolate ice cream = 1/4Probability of chocolate chips = 1/3Probability of waffle cone = 1/2

Probability of chocolate ice cream in a waffle cone with chocolate chips:

1/4*1/3*1/2 = 1/24 or 4.17%

A school guidance counselor is concerned that a greater proportion of high school students are working part-time jobs during the school year than a decade ago. A decade ago, 28% of high school students worked a part-time job during the school year. To investigate whether the proportion is greater today, a random sample of 80 high school students is selected. It is discovered that 37.5% of them work part-time jobs during the school year. The guidance counselor would like to know if the data provide convincing evidence that the true proportion of all high school students who work a part-time job during the school year is greater than 0.28.

The power of this test to reject the null hypothesis if p = 0.747 is 0.59 using a significance level of α = 0.05. What is the interpretation of the power of this test?

If the true proportion of high school students who work a part-time job during the school year is p = 0.747, there is a 0.59 probability that the guidance counselor will find convincing evidence for Ha: p > 0.28.
If the true proportion of high school students who work a part-time job during the school year is p = 0.747, there is a 0.59 probability that the guidance counselor will find convincing evidence for Ha: p = 0.28.
If the true proportion of high school students who work a part-time job during the school year is p = 0.28, there is a 0.41 probability that the guidance counselor will find convincing evidence for Ha: p > 0.28.
If the true proportion of high school students who work a part-time job during the school year is p = 0.28, there is a 0.41 probability that the guidance counselor will find convincing evidence for Ha: p = 0.28.

Answers

The interpretation of the power of this test is that A. If the true proportion of high school students who work a part-time job during the school year is p = 0.747, there is a 0.59 probability that the guidance counselor will find convincing evidence for Ha: p > 0.28.

What is Probability?

This refers to the possibility of an event occuring and this is used in statistics and mathematics to make calculations and predictions.

Hence, we can see that the power of the test to reject the null hypothesis if p = 0.747 is 0.59 using a significance level of α = 0.05, the proportion of high school students working is that there is a 0.59 probability that the guidance counselor will find convincing evidence for Ha: p > 0.28.

Answers

Answer:

0.007105=1421/200000

Step-by-step explanation:

HELP I don’t understand

Answers

Answer:

144, 36

Step-by-step explanation:

you know that if you add the two angles it will equal 180 degrees. so add the two angles and make them equal to 180 and solve for x.

(4x+8) + (x+2)=180

5x+10=180

5x=180-10

5x=170

x=34

now replace x in each equation:

4(34)+8=144

34+2=36

Solve:
10+6X = 15+9x-3x

Answers

10= 15+18x-3x
25= 15x
x= 1.6

please help me, I’ve been on this for 30 mins + I’m an idiot

Answers

I think it's 3/7?

hope this helps

It must be 5/7 because there’s 5 reds and 7blues if I’m getting this right

Write a rule for g. Describe the graph of g as a transformation of the graph of f.

f(x) = x^4 - 3x^2 - 2x, g(x) = - f(x)

Answers

Answer:

Step-by-step explanation:

Find the radius of the circle. Please show work, thank you

Answers

Answer:

4.8

Step-by-step explanation:

PLEASE I AM REALLY FONFUSED!!!!!!!!!!!!!!!!!! I AM BEGGING YOU I WILL GIVE EXTRA POINTS AND BRAINLIEST!!!!!!!!

Answers

Answer:

Hi, there your answer

Number 15: 16

Number16: 176

Number 17: 0

Number 18: 12

Number 19: -3

Number 20:-52

Number 21:{−9}

Number 22: {13}

Number 23:{1}

Number 24:{−90}

Number 25:{−2}

Number 26:{−2}

Number 27:{56}

Number 28:{9}

Number 29:{15}

Number 30: {−10}

Step-by-step explanation:

The answer are in bold I don't know if you are looking for the work or the answer???

Hope this helps :)

Please help me with maths

Answers

Answer:

Each pentagon angle is 108 no matter what.

so 108*3=324

360-324=36

Answer=36

Find the equation of a parabola with focus F(-3, 9) and directrix x = -13.

Answers

Answer:

y² = 38x + 79

Step-by-step explanation:

Since directrix is the line x = -13, then it means x + 13 = 0

Focus is F(-3, 9).

Let A(x, y) be any point inside the plane having the focus and directrix.

Let MA be the perpendicular distance from A to the directrix and it means that A lies on parabola provided FA = MA.

Thus;

√[(x - (-3))² + (y - 9)²] = (x + 13)

Squaring both sides gives;

(x + 3)² + (y - 9)² = (x + 13)²

>> (x² + 6x + 9) + (y² - 18x + 81) = x² + 26x + 169

>> 6x + 9 + y² - 18x + 81 = 26x + 169

>> y² = 26x + 12x + 169 - 90

>> y² = 38x + 79

The FAFSA4caster cannot help students:
O A. decide which colleges to apply to.
O B. plan for upcoming expenses.
O C. learn about how to pay for college.
O D. perform better on standardized tests.

Answers

Answer:

is D perform better on standardized test

Step-by-step explanation:

IT IS CORRECT TRUST! you welcome

There is a direct path from Gail's house to the store. Do to construction, the direct route is closed and Gail must travel 6 miles east and an 8 miles north in order to get to the store. How long is the direct path from Gail's house to the store?

A)10 miles

B)12 miles

C)14 miles

Answers

Answer:

10 miles

Step-by-step explanation:

6 squared plus 8 squared = 100

the square root of 100 is 10 which is the hypotenuse of the route due to construction

The first term of a geometric sequence is 4, and the common ratio is 5. What is the 5th term of the sequence?

a.2,500

b.12,500

c.1,024

d.500

Answers

Answer:

A) 2,500

Step-by-step explanation:

Soo.....

A1 = 4

A2 = 4*5 = 20

A3 = 20*5 = 100

A4 = 100*5 = 500

A5 = 500*5 = 2,500

A car dealership offers customers two pricing options for vehicle repair. Option 1: pay $80 per hour of wok. Option 2: pay a standard fee of $100 plus $400 per hour of work. What is the initial value and the rate of change for option 1

Answers

Answer:

1: The initial value for option one is not charged

The rate of change for option 1 is $80/hr

Step-by-step explanation:

1. From the pricing options at the car dealership we have;

Option 1

Initial value = Not stated

Fee rate per hour of work = $80

Option 2

Standard fee = $100

Fee rate per hour of work = $400

The initial value for option one is not charged

The rate of change = The increase in payment for each increase in one hour of work = $80/hour

Mathematically, we have;

[tex]The \ rate \ of \ change = \dfrac{\Delta Payment}{\Delta Time} = \dfrac{\$80 - \$0}{1 \, h- 0 \, h} = \$ 80/hr[/tex]

Which value from the set { 1/2 , 2/3 , 4/3 , 5/2 } is a value of x that will make the equation 3/4 ÷ x = 9/8 true?

Answers

Answer:

2/3

Step-by-step explanation:

To find out what x is in this case, divide 3/4 by 9/8.

3/4 / 9/8

Dividing by a fraction is the same as multiplying it's inverse.

3/4 * 8/9

Cross cancellation (3 & 9 (GCF: 3); 4 & 8 (GCF: 4)

1/1 * 2/3

We can remove the 1/1.

2/3

2/3 is the value of x that will make 3/4 ÷ x = 9/8 true.

How did the 5 turn into a 6

Answers

Answer:

because 5 and 1 pared up and became a 6 :)

Answer:

Because 5+1 equals 6?

Step-by-step explanation:

Other Questions

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