Mathematics High School

Help I really need the answer to this.​

Help I Really Need The Answer To This.

Answers

Answer 1

It’s either b or c

It either of those.

Answer 2

Answer:

3

Step-by-step explanation:

The sides are congruent so you can write the equation (4x+9)=21.

Now you subtract 9 from 21 and you get 4x=12.

All you gotta do now is divide and you get x=3.

Hope this helps!:)

Related Questions

type the slope intercept equation of the line that passes through the points (5,2) and (4,1)

Answers

Answer:

y = x - 3

Step-by-step explanation:

Answer:

Y= x-3

Step-by-step explanation:

The distance from our y values is -1.

The distance from our x values is -1.

Rise/ Run = Y/X

-1/-1 = 1 or 1/1

You would rise 1 and run 1!

You can use this strategy if you're using graph paper to eventually get the y intercept which is -3.

Hope this helps! :)

Shontelle has soccer practice on Thursday evening. She has a half hour before practice to work on her math homework and talk to her friends. She has 20 math skill-work questions for homework, and she wants to complete them before talking with her friends. If she can solve three math problems in four minutes when she really focuses with no distractions, how many minutes will Shontelle have left after completing her math homework to talk to her friends.

Answers

Answer:

3 1/3 minutes or 3 minutes 20 seconds

Step-by-step explanation:

We can use ratios to see how long it will take her to complete her homework

3 problems     20 problems

----------------- = --------------

4 minutes        x minutes

Using cross products

3x = 4*20

3x= 80

Divide by 3

x = 80/3

x =26 2/3 minutes

She has 30 minutes

30 -26 2/3 = 3 1/3 minutes

3 minutes 20 seconds

What is the position of C on the number line below?
Write your answer as a fraction or mixed number.

Answers

Answer:

2/5

Step-by-step explanation:

there are 5 lines starting at point 1 and ending at 2. point c is on the second line which makes it 2/5ths

The position of C on the number line below is 7/5 or 1 2/5.

What is the number line?

The number line is a horizontal line where all the integers are placed at equal intervals. The number line is extended to infinity on both sides.

Also, the line segment between two integers also divided into subparts to represent the rational number.

here given in the number line there are two integers 1 and 2 in which point C is situated.

The line segment between 1 and 2 is divided into 5 parts.

every subpart in line segment between 1 and 2 will be= the length of the subpart / total number of division

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

C point is present at a distance of 2 subparts from integer 1.

So the position of C will be = 1+(2)(1/5)= 1+(2/5)= 7/5 or 1 2/5

Therefore The position of C on the number line below is 7/5 or 1 2/5.

Learn more about the number line

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what is 2y-4x=-18 in slope intercept form

Answers

Answer: Y = 2x - 9

Step-by-step explanation:

You need to get y by itself, that would be adding, subtracting or dividing anything around it.

2y = -18 + 4x

Y = 2X - 9

Answer:

y=2x-9

Step-by-step explanation:

At a basketball game, for every 2 baskets team A scored, team B scored 3 baskets. The ratio of the number of baskets scored by team A to the number of baskets for team B is?

Answers

Answer:

2:3 2 to 3 or 2 over 3

Estimate 8% of 40 show your thinking

Answers

Answer:

3.2

Step-by-step explanation:

Simplify the expression.

Just divide the numbers.

Identify the factors of the expression 6y(x+z).

Answers

Answer:

6, y,  and (x+z)

Step-by-step explanation:

A factor is something in the expression that is multiplied by something else. In this expression 6 and y are getting multiplied by each other and (x+z) are getting multiplied by 6y.

Figure ABCD is a parallelogram. Is triangle ADB congruent to triangle CBD? Show or explain your reasoning​

Answers

Answer:

yes it's congruent.

Step-by-step explanation:

in a parellelogram, all sides and angles are equal.

ΔADB is congruent to ΔCBD.

The reasoning is given below.

What is a parallelogram?

A parallelogram is a quadrilateral that has two pairs of parallel sides.

In a parallelogram, opposite sides and angles are equal.

The adjacent angles add up to 180 degrees.

We have,

A parallelogram ABCD.

This means,

AD is parallel to BC

AB is parallel to CD

∠A = ∠C

BD is the diagonal of the parallelogram.

Now,

ΔADB and ΔCBD

AB = CD ( given )

∠A = ∠C (given )

∠ADB = ∠CBD ( given )

∠ABD = ∠BDC ( alternate angles )

ΔADB ≈ ΔCBD

Thus,

ΔADB is congruent to ΔCBD.

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Kelsey wants to buy some new shirts at her favorite store. Each shirt costs $10 and she also wants to get a pair of shoes for $25.write an inequality. That she could use to figure out how many shirts she can buy if the most she can spend is $55 and solve

Answers

Answer:

10x + 25 less than or equal to (the sign) $55

Step-by-step explanation:

Answer:

The inequality is 10x + 25 [tex]\geq[/tex] 55

Step-by-step explanation:

This would be the possible inequality, because it says that "EACH" shirt costs 10$ meaning that Kelsey may buy multiple, which is why you would want to put 10x (for every shirt she buys they each cost 10 dollars) and PLUS she wants a pair of sneakers, so add 25 $

She has only 55$ to spend, so here MAXIMUM amount she can spend is 55$ which means, she can only buy whatever she wants for 55$ or lower.

solve for x help thx

Answers

x = 8
because 8 x 2 = 16
16 - 9 = 5
5 x 3 = 15

Answer:

x = 7

Step-by-step explanation:

Given

3(2x - 9) = 15 ( divide both sides by 3 )

2x - 9 = 5 ( add 9 to both sides )

2x = 14 ( divide both sides by 2 )

x = 7

Jorge read that 0.72 of his favorite cereal
was whole grain wheat. Find what fraction
of his cereal is whole grain wheat. Write in
simplest form.

Answers

Answer:

72%

Hope this helps

Question 2 (20 points)
2
1
Joanna walked for 2 a mile on Tuesday. On Wednesday, she walked 5
miles. How far did she walk in all?
Blank 1:

Answers

The answer is:

7 miles

5+2=7
7 miles 2+5 equals 7

1 3/5 plus 2 1/15 as a mixed number. Plz answer

Answers

Answer:

4

Step-by-step explanation:

Answer: 3 4/5

Step-by-step explanation:

Hope this helps, mind giving me the brainliest? :)

3х^2 - 7х + 2 factor the expression

Answers

Answer:

(3x-1)(x-2)

Step-by-step explanation:

3x²-7x+2

3x²-6x-x+2

(3x²-6x)-(x-2)

3x(x-2)-(x-2)

(3x-1)(x-2)


Who can find the area

Answers

The area is 115.5

I did this by subtracting 7 (from the triangle) from 20 to find the the rectangle width!

20-7= 13


Area of rectangle
13•7 =91

Area of triangle

(7•7)/2= 24.5

But it asked the area of the figure so you’ll add both of them together

24.5 + 91 = 115.5

Write the expression
−
3
x
2
+
2
y
2
+
5
x
y
−
2
y
+
5
x
2
−
3
y
2
in simplest form.

Answers

Answer:

2x^2-y^2+5xy-2y

Step-by-step explanation:

I need some answers please a few is fine

Answers

Answer:

a) 1

b) 7

c) 12

d) 3

e) 4

f) 10

g) 25

h) 15

Sombody help please quickly!!

Answers

Answer:

38%

Step-by-step explanation:

Change [tex]\frac{7}{25}[/tex] to a percent, that is

[tex]\frac{7}{25}[/tex] × 100% = 0.28 × 100% = 28%

Then 34% + 28% = 62% ← go by bus or car, leaving

100% - 62% = 38% walking to school

This is for 10 points! Plz

Answers

Answer:

...

Step-by-step explanation:

Table e

5:2

10:4

20:8

Table F

180:5

36:1

216:6

I just want to know if the other answer was right?

6.25% of 1200 is what number

Answers

Answer:

75

Step-by-step explanation:

Answer:

Step-by-step explanation:

6.25/100*1200

=75

Thomas wants to put a fence around a rectangular garden that is 12 feet long and 7 feet wide.
How much fencing he will need?

Answers

Answer:

84 feet

Step-by-step explanation:

 he will need 84 ft to cover the entire garden

Answer:

38 ft of fencing

Step-by-step explanation:

The perimeter of a rectangle is 2L + 2W, where L and W are the length and width, respectively. The dimensions of the garden are given, 7 x 12 ft.

The amount of fencing needed is 2(7) + 2(12) = 14 + 24 = 38 ft of fencing

The scatterplot shows the monthly high temperatures for Austin, Texas, in degrees Fahrenheit over a 12-month period.
Monthly High Temperatures
in Austin, Texas
113
109
105
(do) amesadwal
101
..
97
93
.
89
85
1 2 3 4 5 6 7 8 9 10 11 12
Month
Which function best models the data from Month 1
Month 9
y = 1.6 + 111
2.5790

Answers

Answer: y=2.5x+90

Step-by-step explanation:

idk

Answer: y =2.5x+90

Step-by-step explanation:

what does figure number 4 equal

Answers

Answer:

12

Step-by-step explanation:

bc at the bottom them r halfs so all the have to do its put them to together than it would be 12

Which of the following statements are always true about matrices?

Two matrices are equal if they are both square matrices.

Two matrices with different sizes cannot be equal.

A 2 x 3 matrix has 2 rows and 3 columns.

Two matrices are equal if their corresponding elements are equal.

Answers

Answer:

B, C, D

Step-by-step explanation:

edge 2023

HEY CAN YALL ANSWER DIS PLS!!!

Answers

Answer:

a

Step-by-step explanation:

i just multiplied

Answer:

A. $63.60

Step-by-step explanation:

Multiply $7.95 x 8

This equals $63.60

Find the difference.
50 - (-27)

Answers

77 because negative times a negative is a positive so you add the 50 and the 27

One gram of protein contains 4 calories. One gram of fat contains 9 calories. A snack has 80 calories from x grams of protein and y grams of fat. 80= 4x + 9y

If there are 6 grams of fat in the snack, how many grams of protein are there? Show your reasoning.

Answers

Answer:

6,5g of protein

Step-by-step explanation:

80=4x + 9y

y=6 ( "6 grams of fat")

so: 80=4x+9.6

80-54= 4x

26/4=x

x(protein)= 6,5

Answer:

  6.5 grams

Step-by-step explanation:

To find the value of x that corresponds to the given value of y, put that y-value into the equation and solve for x.

  80 = 4x +9·6

  26 = 4x

  26/4 = x = 6.5

There are 6.5 grams of protein in the snack.

Give each rate in miles per hour. Round to the nearest tenth.
Dhruv jogs 8 feet per second.

I don’t know the answer please help.

Answers

The answer is 5.5 mph

The question requires changing feet per second into miles per hour

The unit rate in miles per hour is 5.5 miles per hour

8 feet = 0.00151515 miles

1 second = 0.000277778 hour

unit rate in miles per hour = number of miles / number of hours

= 0.00151515 mile / 0.000277778 hour

= 5.4545356363714 miles per hour

Approximately, 5.5 miles per hour to the nearest tenth

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There are 4 carriages connected to a train that is 52 meters long. If there
were 8 carriages connected to the train, how long would it be?

Answers

I thin it would be 104!

what's the number of electron for Fe?​

Answers

Answer:

The answer 26, given that it’s atomic number is 26, and the atomic number is equal to the number of protons, which is equal to the number of electrons. Assuming that it has a neutral charge, the answer would be 26.

Step-by-step explanation:

26, the atomic number is 26
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Find the sum-13.6 + (-14.4) PLEASE HELP ASAP How many moles are there in 2.25 x 10^25 atoms of Zinc?How many atoms are there in 9500.0 mg of Fluorine? 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Interference is the ___________ of two or more waves. in one week katy walks 1,720 meters and runs 1,925 meters. she performs the same workouts for three weeks. how many meters does katy walk and run in three weeks of workouts? Please hurry its urgent Thank you The function f(x) is graphed on the coordinate plane What is f(-2)A)-4B)-2C)4D)0 Read this excerpt from Narrative of the Life of Frederick Douglass.We were not regularly allowanced. Our food was coarse corn meal boiled. This was called MUSH. It was put into a large wooden tray or trough, and set down upon the ground. The children were then called, like so many pigs, and like so many pigs they would come and devour the mush; some with oyster-shells, others with pieces of shingle, some with naked hands, and none with spoons. He that ate fastest got most; he that was strongest secured the best place; and few left the trough satisfied.Which detail from the passage is evidence that the slave children were not fed enough?(A)Our food was coarse corn meal boiled.(B)It was put into a large wooden tray or trough, and set down upon the ground.(C)...and like so many pigs they would come and devour the mush[.](D)...he that was strongest secured the best place; and few left the trough satisfied. what will happen if a low massive main sequence star runs out of hydrogen fuel? Which statement that follows is true? HELP PLEASE HELP ME I ONLY HAVE 6 MINUTES LEFT HELPRead this short passage and answer the questions below:Excerpt from A Study in ScarletBy Conan DoyleIn the year 1878 I took my degree of Doctor of Medicine of the University of London and proceeded to Netley to go through the course prescribed for surgeons in the army. 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