Mathematics High School

need help with 3 and 4

Answers

Answer 1

Have u learned cross multiplication
Brainliest pls!

Related Questions

find the sum of the first 25 multiples of 10.

Answers

Answer:

Step-by-step explanation: So the first 25 multiples of 10 are ,

10,10,10,10 ect, to 25 the sum of all of the numbers is 250 i hope this helped!!!

Answer:

3250

Step-by-step explanation:

First 25 multiples of 10:

10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, 130, 140, 150, 160, 170, 180, 190, 200, 210, 220, 230, 240, 250

1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 = 55

11 + 12 + 13 + 14 + 15 + 16 + 17 + 18 + 19 + 20 = 155

21 + 22 + 23 + 24 + 25 = 115

55 + 155 = 210

210 + 115 = 325

325 x 10 = 3250

Hope this helped!

Are these two triangles similar???????!!!!!!! PLEASE HELP! I WILL GIVE BRAINILST AND MANY POINTS!

Answers

Answer:

yes the blue one is bigger but the green one is just smaller but if you multiply the sides by two it would be the same size so yeah they are similar

Step-by-step explanation:

Answer:

It's called Dilation when a triangle is the similar but only smaller, but as he said above, multiply the numbers by 2, you can't if they aren't numbers but if you do then it'll be the same size.

Step-by-step explanation:

Which is the graph of the system y < 3x + 4 and y < 3x - 2

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Answer:

Step-by-step explanation:

Answer:

It’s C

Step-by-step explanation:

trust

Which equation represents the graphed line?

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Answer:

Hope this helps!!!!!!!

What is the mean of the data set: 17,13,18,20,17,15,12

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Answer:

Step-by-step explanation:

A piece of wood 6 m 20 cm long is marked off into 0.1 m lengths.
How many 0.1 m lengths are there?

Answers

Answer:

Your Correct answer is 60.2

Step-by-step explanation:

Well, we're solving for how many 0.1m lengths there are in 6m 20cm, there are (60.2) 0.1m lengths.

RJ solves a math problem on the whiteboard using the Powers of Products Property. Is his answer correct? Explain.

6^3 * 7^3 = 42^3

Select the correct answer.

a:
Yes, because (6*7)^3 is 42^3
b:
No, because 6^3 * 7^3 = 42^6
c:
No because 6^3 * 7^ 3 = 42^9
d:
No, because 6 * 7 = 42

Answers

It’s A. Since every aspect of that is multiplication, you can change around how you write it such as (6*7)^3. 6*7 is 42, and 42^3 is the exact same as 42^3

Answer:

Its A

Step-by-step explanation:

Because they have the same answer. <3

PLEASE HELP I NEED THIS NOW PLEASE I WILL MARK BRAINLIST!! Look at the image above to solve please

Answers

Answer:
y+119=180( being straight angle)
y=180-119
y=61
Then,
5x+11=y(being corresponding angle)
5x+11=61
5x=61-11
5x=50
x=10

PLS HELP ME ASAP I'LL GIVE BRAINLYEST

Answers

I think you do 1 1/4 divided by 20 i’m not sure sorry if it’s wrong

TV−→− bisects ∠STU, m∠STV=(14x+8)∘, and m∠UTV=(x+2)∘. Find m∠STU

Answers

Answer:

Since TV bisects STU, m∠STV and m∠UTV are equal

14x+8 = x+2

13x+8 = 2

13x = -6

x = -6/13 or -0.46

The measure of m∠STU is 40/13 degrees

A point that bisects a line divides the line into two equal parts

If TV bisects ∠STU and ∠UTV, then;

∠STU = ∠STV+ ∠UTV ∠STV= ∠UTV

Given the following

m∠STV=(14x+8)∘

m∠UTV=(x+2)∘

Substitute the given values into the formula and calculate m∠STU

14x + 8 = x+ 2

14x - x = 2 - 8

13x = -6

x = -6/13

Get m∠STV

m∠STU = 14x+8 + x + 2

m∠STU = 15x + 10

m∠STU = 15(-6/13) + 10

m∠STU = -90/13 + 10

m∠STU = 40/13

Hence the measure of m∠STU is 40/13 degrees

Learn more here https://brainly.com/question/22883501

Which transformation has been applied?

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I think it’s going to be reflection but I don’t know which one it is :/

Answer:

Its C

Step-by-step explanation:

Please Help!!
Thanks!!

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Answer:

a) 18x+9x+4x+16

b) 41x+16

[tex](7y + 5) - (8y - 6)[/tex]

Answers

Answer:

7y + 5 - 8y + 6

-y + 11

Step-by-step explanation:

Mallory is 2 years older than three times her brother Jake’s age.
Let j represent Jake’s age.
During the strategize step of the five-step problem-solving plan, which expression where do you use to represent Mallory’s age?
A. 3j+2
B. 2j+3
C. j+2
D. 3(j+2)

Answers

Answer:

A) 3j + 2

Step-by-step explanation:

sorry, I always have trouble explaining this kind of question. hope I was still able to help!

plz help i attached a photo

Answers

x= 2/6 y= 6/10 z= 9/4 pretty sure

below are two parallel lines with a third line intersecting them.

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44+44= 88 360-88= 272 272/2= 136
136 is your answer. you can also see that 44 degrees is on a straight line so you can do 180 ( because a straight line is 180 degrees) minus 44 which also gives you 136

geometry! help pls asap

Answers

i believe the answer is A sry if im wrong

Answer:

Step-by-step explanation:

will be your answer

HELP HAVING BAD DAY
Find the ratio a:b if it is given that: a 3a=8b

Answers

Answer:see answers below

Step-by-step explanation:Slope=

2.000

0.750

=0.375

a−intercept=

=0.00000

b−intercept=

−8

=−0.00000

What is the equation in point slope form of the line that passes through the point (-1, -3) and has a slope of 4?

Oy-1=4(3-3)

Oy+3 = 4(x+1)

Oy+1=4(x+3)

Oy-3 = 4(2 - 1)

Answers

Answer:

The answer is y+3 = 4(x+1)

Step-by-step explanation:

To find an equation of a line in point slope form when given the slope and a point we use the formula

[tex]y - y_1 = m(x - x_1)[/tex]

where

m is the slope

( x1 , y1) is the point

So we have

[tex]y + 3 = 4(x + 1)[/tex]

Hope this helps you

HELLP
Using the graph: after a reflection, the image vertices are A’(5,1),B’(3,-1) and C’(7,-1) what is the line of reflection?

Answers

Answer:

x=2

Step-by-step explanation:

the line that is being refected over is x=2

The perimeter of a rectangular swimming pool is 154 m. Its
length is 2 m more than twice its width. What are
length and the width of the pool ?

Answers

Answer:

breadth =25 m and length =25×2+2=52 m

Step-by-step explanation:

You want to purchase your first house. A conventional mortgage will require a credit score of approximately 630. Your credit score is 560. You need to increase it by 70 points to get to 630. If you increase your score by 12% per year, how many years will it take to lift your score to 630?

Answers

Answer:

a) 1.1 yrs

Step-by-step explanation:

THESE ARE OPTIONS FOR THE QUESTION BELOW;

a) 1.1 yrs

b) 2.3 yrs

c) 26 yrs.

d) 12 yrs.

✓At initial year (0 year) credit score =560 points

Then the score is increased by 12% per year, with this 12% increase we have 702.4 points in the 1st year

✓At the first year(1st year)

(12/100)× 560 points of the initial year.

= 627points

✓ At second year (2nd year), the 627points

increases by 12% again.

(12/100)× 627.2 points of the initial year.

= 702.4points

There was 75.2 increase between istyear and second year(702.4points - 627points)

Since, We have 12 month in a year, that means there is 6.2 points per month (75.2/12) for the year .

After second year we had 627points, with increase of 6.2point, Then at 1.1 year we would have score of 630 points

Answer:

Step-by-step explanation:

A rectangular pentagon with side lengths of l. A rectangle with a length of l + 10 and a width of l.
A regular pentagon and rectangle have the same perimeter. The length of the rectangle and the side of the pentagon are equal. The width is 10 more than the length. Write an equation that describes the scenario.
pentagon’s perimeter:
rectangle’s perimeter:
scenario’s equation:

Answers

Answer:

Pentagon's perimeter: 5I ; (choice 2)

Rectangle's perimeter: 2I + 2 (I + 10) ; (choice 4)

Scenario's equation: 5I = 2I + 2 (I + 10) ; (choice 4)

Step-by-step explanation:

I hope this helped! :)

Answer:

Pentagon's perimeter: 5I ; (choice 2)

Rectangle's perimeter: 2I + 2 (I + 10) ; (choice 4)

Scenario's equation: 5I = 2I + 2 (I + 10) ; (choice 4)

Step-by-step explanation:

After 200 feet of drilling on the first well, a soil test is taken. The probabilities of finding the particular type of soil identified by the test are as follows. P(soil | high-quality oil) = 0.20 P(soil | medium-quality oil) = 0.80 P(soil | no oil) = 0.20 How should the firm interpret the soil test? The probability of finding oil is good. Given the probability of finding good soil, the oil company is more likely to find oil. What are the revised probabilities?

Answers

Answer:

The revised probabilities are;

The probability of finding soil with oil = 0.8

The probability of finding soil with good oil = 0.16

The probability of finding medium quality oil = 0.64

Step-by-step explanation:

The given probability of finding soil with high quality oil, P(QO) = 0.20

The probability of finding soil with medium-quality oil, P(OM) = 0.80

The probability of finding soil with no oil, P(ON) = 0.2

Therefore, given that the probability of finding soil with no oil = 0.2, we have;

The probability of finding soil with oil, P(OP) = 1 - the probability of finding soil with no oil

P(OP) = 1 - 0.2 = 0.8

Which gives;

The probability, P(FG) of finding soil with oil and that the oil is good is given as follows;

P(FG) = P(QO) × P(OP) = 0.2 × 0.8 = 0.16

The probability of finding good oil = 0.16

Similarly;

The probability of finding medium quality oil P(FM) = P(OM) × P(OP) = 0.8 × 0.8 = 0.64

Which gives the revised probability as follows;

The probability of finding soil with oil, P(OP) = 0.8

The probability of finding soil with good oil, P(FG) = 0.16

The probability of finding medium quality oil, P(FM) = 0.64.

is 5.67 A)rational B)Irrational C)whole D) natural E)integer

Answers

Rational it stops and repeats

what is the number of significant figures in 0.502

Answers

What ?! What’s the picture

y − 3x = 4 slope intercept form plsssssssss

Answers

Answer:

y = 3x + 4

Step-by-step explanation:

The slope-intercept form of a line is y = mx + b. We add - 3x to 4 to isolate the y.

y= 3x+4. add 3x to both sides to get 3x on the right side, leaving y by itself.

7k-10=-8-4(k+6)
Helpp

Answers

Answer:

k=-2

Step-by-step explanation:

7k-10=-8-4(k+6)

7k-10=-8-4k-24

7k-10=-32-4k

11k-10=-32

11k=-22

k=-2

Step-by-step explanation:

7k-10= -8-4(k+6)

7k-10= -8-4k_24

7k+4k= -8-24+10

11k= -22

k= -22/11

k= -2

PLEASE HELP

Norton started driving at 9 am by noon he had traveled 162 mi what was his average Speed?

Answers

18 mi/ph because 162 divided by 9 is 18.

Answer:

54 mph

Step-by-step explanation:

Noon is at 12:00 so if he started at 9:00 he would have droven 3 hours and 162 divided by 3 = 54.

Can you guys PLZ answer this question really fast

Answers

Answer:

5*10^-7

Step-by-step explanation:

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