Mathematics High School

Just help me out
Brainlist will be given

Answers

Answer 1

Answer:

Answer is 18 , because you add 15 and 3 which makes 18 so your answrer is x=18

Step-by-step explanation:

really hope this helped , please give me brainlest :) .

Answer 2

scale factor = 18/10 = 1.8
AC = 15 x 1.8 = 27
So x = 17
(this is for ABE similar to ACD)

15+3=18
18/15= 1.2
scale factor= 1.2
10x1.2= 12
12-10=2
x=2
(this is for AEB similar to ADC)

Related Questions

A department store manager to estimate at a %90 confidence level the mean about by all customers at this store

Answers

Answer:

The answer is "287.19"

Step-by-step explanation:

Please find the complete question in the attached file.

[tex]\alpha=1-0.90=0.10\\\\\frac{\alpha}{2}=0.05\\\\Z=1.64\\\\Marginal \ error=Z \times \frac{\sigma_x}{\sqrt{n}}\\\\n=(\frac{Z \times \sigma_x}{error})^2\\\\n=(\frac{1.64 \times 31}{3})^2\\\\n=287.1895\approx 287.19[/tex]

12
Activity 2
1. Express each as a unit rate.
a) A car travelled 150 km in 3 hour. Show your work.

Answers

Given:

A car traveled 150 km in 3 hour.

To find:

The unit rate.

Solution:

We have,

Distance = 150 km

Time = 3 hours.

In this case speed is the unit rate.

[tex]Speed=\dfrac{Distance}{Time}[/tex]

Substituting the given values, we get

[tex]Speed=\dfrac{150\text{ km}}{3\text{ hr}}[/tex]

[tex]Speed=50\text{ km/h}[/tex]

Therefore, the unit rate is 50 km/h.

Soduko help please show work please answer BORH questions

Answers

Answer:

Step-by-step explanation:

Tyrone is converting StartFraction 45 Over 50 EndFraction to a percent. Which method should he use to find the percent?

Answers

Answer:

Multiply the numerator and the denominator of the fraction by 2.

Step-by-step explanation:

Here are the options :

Divide the numerator and denominator of the fraction by 2.

Subtract 40 from the numerator and denominator of the fraction.

Multiply the numerator and the denominator of the fraction by 2.

Add 50 to the numerator and denominator of the fraction.

(45 x 2) / (50 x 2) = 90/100

Multiply 90/100 by 100 = 90%

the same answer would be gotten if 45/50 is multiplied by 100

45/50 x 100 = 90%

Help me PLEASEEEE
find the the angles

Answers

You need to find x so that then you can do it and you didn’t share a answer so how are we supposed to know??

PLEASE I NEED THE ANSWER DON'T IGNORE MY QUESTION!!! Solve for X for the following

Answers

Answer:

Fig. 1 :- 7.6

Fig. 2 :- 15

Step-by-step explanation:

We can use Pythagoras theorem to solve for x

[tex]c^{2} =a^{2} +b^{2}[/tex]

Figure 1:

[tex]c^{2} =7^{2} +3^{2}[/tex]

[tex]c^{2} =49+9[/tex]

[tex]c^{2} =58[/tex]

[tex]c=\sqrt{58}[/tex]

[tex]c=7.615773106[/tex]

You can now round your answer:

[tex]c=7.6[/tex]

Figure 2:

[tex]c^{2} =12^{2} +9^{2}[/tex]

[tex]c^{2} =144+81[/tex]

[tex]c^{2} =225[/tex]

[tex]c=\sqrt{225}[/tex]

[tex]c=15[/tex]

I hope this helps :)

Step-by-step explanation:

fig(1)

h=x

p=3

b=7

now,

h^2=p^2+b^2. (by Pythagoras theory)

or, x^2=3^2+7^2

or, x^2=9+49

or, x^2=58

or, x=√58

fig(2)

h=x

p=12

b=9

now,

h^2=p^2+b^2

or, x^2=12^2+9^2

or, x^2=144+81

or, x^2=225

or, x=15

How is 1 over 9 a rational number?

Answers

Answer:

Because 1/9 is a fraction with integers meaning it is a fraction with whole numbers.

Step-by-step explanation:

Any number that can be written as a fraction with integers is called a rational number. For example, 17 and −34 are rational numbers. (Note that there is more than one way to write the same rational number as a ratio of integers. For example, 17 and 214 represent the same rational number.)

Hope this helps

what is the word capacity mean

Answers

Answer:

the maximum amount that something can contain. hope this helps :)

Step-by-step explanation:

help please! the question is in the picture below for reference when answering! thank you so much!

Answers

Answer:

Neither perpendicular or parallel

Step-by-step explanation:

The y-intercept would not be the same, and the slope would be different. That means that line wont be parallel, or perpendicular.

If my answer is incorrect, pls correct me!

If you like my answer and explanation, mark me as brainliest!

-Chetan K

Solve this equation

1 . B/-7 = 4

Answers

Step-by-step explanation:

B/-7 = 4

Cross multiple

-7×4 = B

-28 = B

Answer:

-28

Step-by-step explanation:

First, multiply 4*-7= -28.

You're done. B=-28

Hope this helps!

explicit formula for an the nth term of the sequence 38,48,58

Answers

Answer:

10n + 28

Step-by-step explanation:

a + d (n-1)

a = 38

d = 10

38 + 10 (n-1)

38 + 10n -10

10n +38 - 10

10n + 28

Hope this helps!

which answer represents the series in sigma notation 1+1/4+1/16+1/64+1/256+1/1024+1/4096

Answers

Answer:

1/(4^(n-1))

Step-by-step explanation:

if you start at zero then this should be the solution

Graph a line that contains the point (-6,1) and has a slope of 5

Answers

Answer:

Step-by-step explanation:

Equation of a line passing through a point (h, k) and slope 'm' is given by,

y - h = m(x - k)

Equation of a line passing through (-6, 1) and slope = 5,

y - 1 = 5(x + 6)

y = 5x + 31

Input-output values of the given equation,

x -6 -4 -2 0

y 1 11 21 31

Now plot these points on a graph.

For people who have taken PreCalc/Calc:

Find the constant a such that the function is continuous on the entire real line.

(Summer Math Packet)

Answers

Answer:

cant see the picture

Step-by-step explanation:

please help! 10 points and brainlyist!!

Answers

Answer:

1.80 in^3

1.0 fluid ounces^3

Step-by-step explanation:

volume of a cone = 1/3 πr²h

π = 3.14

r = 2.2 / 2 = 1.1

h = the value of h can be determined using Pythagoras theorem

The Pythagoras theorem : a² + b² = c²

where a = length

b = base

c = hypotenuse

1.8² = 1.1² + b²

3.24 = 1.21 + b²

3.24 - 1.21 = b²

2.03

b = √2.03 = 1.42

Volume = 1/3 x 3.14 x 1.21 x 1.42 = 1.80 in^3

1.80 x 0.554 = 1.0 fluid ounces^3

What’s the answer?? Pls help

Answers

Answer:

Step-by-step explanation:

EXERCISE 22.3
1.Divide 250 in the ratio 3:2
2.Divide 144 in the ratio 1:2
3.Divide 10 kg in the ratio 2:3
4.Divide 1 hour in the ratio 5:7
5.Divide 8m in the ratio 3:13
6.Divide 45 km in the ratio 7:8.
7.Divide 4 hours in the ratio 5:3
8 .Divide 2 kg in the ratio 3:7
9 .Divide 3 litres in the ratio 7:5
10.Divide 1 cm in the ratio 2:3
11.Divide 70 in the ratio 60% to 40%
12.Divide 1 hour in the ratio 20% to 80%
13 .Express the ratio 3:17 as percentages.
14 .Express the ratio 9:31 as percentages.

Answers

2. 144/1:2 is 144/ ½ = 144 x 2/1 = 288

3x-y=-1. X-2y=-12 solve by using graphing

Answers

Answer:

x = 2

y = 7

Step-by-step explanation:

Graphing calculators are everywhere but ok.

I attached a graph.

David is a professional ice skater who has skated in 10 competitions. His scores in the competitions are as follows: 204, 310, 279, 314, 257, 302, 232, 261, 208, 217.

The mean score is:
A: 268
B: 268.4
C: 267
D: 267.4

Answers

Answer: 267.7

I just did the math and I got this answer

PLS HELP ASAP GIVING BRAINLIEST TO RIGHT AWNSER

Answers

It's C, just look at where the points are.

Answer:

It's C,

hope it helps

The length of a bridge is 180 m. The length of each of Robert's paces is 55 cm.
What is the minimum number of full paces that it would take Robert to walk the full length of the bridge?

Answers

Answer:

328 paces

Step-by-step explanation:

180m=180,00cm

18000÷55=3600/11=327 3/11

A submarine first went down 725 feet below sea level. It then went up 150 feet. What was the final depth of the submarine?

Answers

Answer:

575 feet

Step-by-step explanation:

the final depth = 725-150= 575

Need help, please help me ASPA!!!

Answers

Answer:

35 degrees

Step-by-step explanation:

35 degrees is your answer

Triangle A is reflected in the x-axis to give B.
Triangle B is reflected in the y-axis to give C.
Describe fully the single transformation that maps A onto C.

PLZ HELP

Answers

Answer:

The answer is below

Step-by-step explanation:

Transformation is the movement of a point from its initial location to a new location. Types of transformation is rotation, reflection, translation and dilation.

If a point A(x, y) is reflected over the x axis, the new point is at A'(x, -y). If a point B(x, y) is reflected over the y axis, the new point is at A'(-x, y).

Triangle A has vertex at (-4, -2), (-4, -5) and (-2, -5). If triangle A is reflected in the x axis to give triangle B, the vertex of triangle B is (-4, 2), (-4, 5) and (-2, 5).

If triangle B is reflected in the y axis to give triangle C, the vertex of triangle C is at (4, 2), (4, 5) and (2, 5). Hence the transformation is:

(x, y) ⇒ (-x, -y)

According to Chad, all intersecting lines form right angles.

If he's right, explain why.

A. Chad is correct because intersecting lines are always perpendicular.

B. Chad is incorrect because intersecting lines are never perpendicular.

C. Chad is incorrect because intersecting lines are sometimes perpendicular.

D. Chad is correct because intersecting lines are sometimes perpendicular.

Answers

Answer:

C. Chad is incorrect because intersecting lines are sometimes perpendicular.

Step-by-step explanation:

SOMETIMES perpendicular (90 degree angle, aka right angle) not always.

Chad is incorrect because intersecting lines are sometimes perpendicular.

What are perpendicular lines?

If the angle between two lines is 90 degrees, lines are called perpendicular lines.

If two lines intersect each other, it is not necessary that they will intersect at 90°.

Sometimes they can intersect at 90° and sometimes not.

So, Chad is incorrect because intersecting lines are sometimes perpendicular.

Hence, Chad is incorrect because intersecting lines are sometimes perpendicular.

To get more about intersecting lines visit:

https://brainly.com/question/18013592

Lebron has committed to a new workout plan at the beginning of January. He begins by doing 10 pushups on January 1 and will increase the number of pushups by 2 each day. How many pushups will he do on January 31? Show your calculations.

Answers

Answer:

ok so if he starts by doing 10 and does 2 evrey day that means he will be doing 70 push ups on the last day of the month since

2*30+10=70

Can someone help me with this please? I will mark you brainliest