Mathematics High School

find a, b and c such that the number a , 7,b,23,c are in A.P please solve it​

Answers

Answer 1

Answer:

since a,7,b,23,c are in A.P.

first term t1=a

second term t2=7

common difference (d)=7-a

forth term t4=a+3d

23=a+3(7-a)

23=a+21-3a

23=21-2a

2a=21-23

a=-2/2=-1

common difference =7-a=7--1=8

third term =a+2d=-1+2×8=15

:.b=15

5th term =c

a+4d=c

c=-1+4×8=31

a=-1

b=15

c=31

Answer 2

Step-by-step explanation:

what is stoichiometry ?

only for faizan !!!!

Find A, B And C Such That The Number A , 7,b,23,c Are In A.P Please Solve It
Find A, B And C Such That The Number A , 7,b,23,c Are In A.P Please Solve It

Related Questions

Please help, If you can also explain the steps you used to solve this that would be great.

Answers

Answer:

24¾

Step-by-step explanation:

8/18=11/x

x=11×18/8

x=198/8

x=24¾

A checking account has a balance of $350 a customer makes Cu with drawls 150 more than the other then he makes a deposit of 75 what is the answer

Answers

Answer:

275

Step-by-step explanation:

Neck size, in inches, and number of teeth of 18 randomly selected puppies are compared. Which significance test should be used to see if neck size and number of teeth have a linear relationship? Assume all test conditions are met.

a
Two-sample z-test

b
Two-sample t-test

c
Two-proportion z-test

d
t-test for slope of regression line

e
One-proportion z-test

Answers

Answer:

D

Step-by-step explanation:

its just obvious

go bucs

GiVing
brains!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Which expression has a value of 13?


(20 ÷ 4) − 4 + 3 x 2

(18 ÷ 2) + 6 ÷ 6 + 3

(16 ÷ 4) + 3 x 4 − 1

(10 ÷ 2) − 3 + 4 x 2

Answers

(18/2)+6/6+3

Step-by-step explanation:

(18/2)=9

6/6=1

9+1=10

10+3=13

Use PEMDAS

I’m posting too many


Solve each equation 51/2=d +1/4 what is d?

Answers

D = 101/4
if you need it in decimal form it is 25.25
if you need it in mixed number form it is 25 1/4

Which quadratic function in vertex form has a vertex at (−5 , −4) and passes through the point (−2 , −1)?

y=−13(x+5)^2−4

y=−13(x−5)^2+4

y=13(x−5)^2−4

y=13(x+5)^2−4

Answers

Answer:

y = 1/3(x + 5)^2 - 4

Step-by-step explanation:

The general vertex form is;

y = a(x-h)^2 + k

From the question, (h,k) are the coordinates of the vertex which is (-5,-4)

So we have

y = a(x + 5)^2 -4

So we need to get the leading coefficient

Simply substitute the point it passes through

x = -2 and y = -1

-1 = a(-2 + 5)^2 - 4

-1 = a(3)^2 -4

-1 = 9a -4

9a = 4-1

9a = 3

a = 3/9

a = 1/3

So the equation is;

y = 1/3(x + 5)^2 - 4

kdhdihfufngdjfhfhfjdjdyfifnfyf please help​

Answers

Answer:

mean: 6.9

median: 7

range: 2

Step-by-step explanation:

what is the coefficient of 7x+13

Answers

Answer:

7

Step-by-step explanation:

This is because any number combind with a variable will be considered a coefficient, for example in the equation 4x-13, 4 is the coefficient.

I believe the answer is 7

WILL GIVE BRAINLIEST

Answers

It’s B Ps U gottttt thisssss

Andrew buys 4 books for the same price, and also a video for $18. His total bill was $110. What was the cost of a book

Answers

First you would subtract 18 from 110 and get a result of 92 then divide by 4 and get 23 so each book is 23 dollars hope this helps mark as brainlist

7.
Would the following angle measures form a triangle?
70°, 80°, 45°

a) No
I b) Yes

Answers

The answer would be B :)

Answer:

A

Step-by-step explanation:

The measure of the angles of a triangle = 180

70 + 80 + 45

150 + 45

195 degrees

195 > 180

So, A) No

Please help! I need help.

Answers

Answer:

Supplementary

Step-by-step explanation:

Two angles are "supplementary" when their degree values add up to 180.

Another similar word is "complementary" where angles add up to 90.

;) tip: memorize the words

What is the range of the ordered pairs (1,1), (2,6), (3,5), and (4,1)?

Answers

Answer:

45

Step-by-step explanation:

just cuz

Answer:

45

Step-by-step explanation:

The ryan family pays 1,347 per month for rent. If their rent doesn't change, how much will they pay in dollars for rent over 30 years

Answers

Answer: 4,84,920

Step-by-step explanation:

Given

The rent per month is 1347

for a year it is 12 months

for 30 years it is [tex]30\times 12=360\ \text{months}[/tex]

Rent for 30 years it is

[tex]\Rightarrow \text{rent}=1347\times 360=484,920[/tex]

Simplify: x
[tex]x { }^{2} - 3x + 2 \ \div x {}^{2} - 4[/tex]

x² - 4
4​

Answers

Answer:

[tex]\frac{x-1}{x+2}[/tex]

Step-by-step explanation:

simplifying the equation:  [tex]x^2-3x+2/x^2-1[/tex]

1) Rewrite the equation so it's easier to understand:

[tex]\frac{x^2-3x+2}{x^2-4}[/tex]

2) factor [tex]x^2-3x+2[/tex]:

[tex]x^2-3x+2[/tex] [tex]=> (x-1)(x-2)[/tex]

3) factor [tex]x^2-4[/tex]:

[tex]x^2-4 => (x+2)(x-2)[/tex]

Meaning: [tex]\frac{(x-1)(x-2)}{(x+2)(x-2)}[/tex]

4) Cancel the common factor: [tex](x-2)[/tex] from the numerator and the denominator:

[tex]=\frac{x-1}{x+2}[/tex]

CAN SOMEONE PLEASE HELP ME

Answers

same side exterior angles are two angles that are on the same side and exterior to the parallel lines. they're supplementary

Joe walks to his school from his home in 37 minutes .if his school is 3kn away calculate. the speed in meters per second​

Answers

Step-by-step explanation:

speed= distance/time

37 mn=2220 sec

3 km=3000 m

ans=3000m/2220sec

Brainliest if correct

Answers

Answer:

the answer is c

Heyy can someone please help me with this math ? I forgot how to figure it out... I'll give brainliest !!

Answers

Answer: 4 is the scaling increment

Step-by-step explanation:

12/3 = 4

8/2 = 4

True ^^^**^^^^^^^^^^^^^^^^

Division sum:
20 ➗ 2 =

Answers

Answer:

10

Step-by-step explanation:

Answer:

10

Step-by-step explanation:

20/2 = 10

how do I get the answer to 2/5 times 3

Answers

Answer:

6/5

Step-by-step explanation:

2/5*3=2/5*3/1=6/5

Answer:

[tex]\frac{6}{5}[/tex] or [tex]1\frac{1}{5}[/tex]

Step-by-step explanation:

[tex]\frac{2}{5} *3[/tex]

3 can be rewritten as 3/1

[tex]=\frac{2}{5}*\frac{3}{1}[/tex]

Multiply the numerators and denominators

[tex]2*3=6\\5*1=5[/tex]

[tex]= \frac{6}{5}[/tex]

You can also change this into a mixed number by dividing the numerator by the denominator and writing the remainder as the numerator:

[tex]= 1\frac{1}{5}[/tex]

I hope this helps!

may i get someone who can answer this question. Ruth has 12 feet of ribbon.
She uses 7 feet of it for a craft project and gives 28 inches of it to her sister.
How many inches of ribbon does she have left?

Answers

Answer:

2ft 8in

Step-by-step explanation:

Text if you want explanation. Welcome❤

Acellus
Find the indicated side of the
triangle.
b
a
30°
12
12
[?]
a
Enter

Answers

Answer:

a = [tex]\frac{12}{\sqrt{3} }[/tex]

Step-by-step explanation:

Using the tangent ratio in the right triangle and the exact value

tan30° = [tex]\frac{1}{\sqrt{3} }[/tex] , then

tan30° = [tex]\frac{opposite}{adjacent}[/tex] = [tex]\frac{a}{12}[/tex] = [tex]\frac{1}{\sqrt{3} }[/tex] ( cross- multiply )

a × [tex]\sqrt{3}[/tex] = 12 ( divide both sides by [tex]\sqrt{3}[/tex] )

a = [tex]\frac{12}{\sqrt{3} }[/tex]

Allen wants to have a mean of 90 on his math quizzes. So far, he has scored 86, 94, 88, 95, and 89. What is the least score that Allen needs on his next quiz to have a mean of 90?

Answers

Answer:

88

Step-by-step explanation:

[tex] \frac{86 + 94 + 88 + 95 + 89 + x}{6} = 90[/tex]

The mean would be the sum of all the math quiz grades divided by the number of quizzes taken.

Solve for x:

[tex]86 + 94 + 88 + 95 + 89 + x = 540[/tex]

[tex]452 + x = 540[/tex]

[tex]x = 88[/tex]

Thus, Allen needs at least an 88 to obtain a mean of at least 90.

Norma had 3/8 birthday cake left over from her party . She ate 3/4 of the leftover cake at lunch. How much of the whole cake did Norma have at lunch?

Answers

Answer:

1/ 2

Step-by-step explanation:

Given that :

Fraction left over = 3/8

Fraction of leftover ate = 3/4

Amount of the whole cake Norma have at lunch :

Fraction left over ÷ fraction of left over ate

3/8 ÷ 3/4

3/8 * 4/3

(3*4) / (8*3)

12 / 24

1/2

1/2 of the whole cake

Answer:

1/2!!

Step-by-step explanation:

A plane can have more than one rudder?

True or False

Please help me!

Answers

True

And don’t click the link

find the value of given expression
[tex] \sqrt{170 - 1} [/tex]
​

Answers

Answer:

Answer is 13 I hope this help you


What is the meaning of the point with an x-coordinate of 2?

Answers

Answer:

A

Step-by-step explanation:

Because the x-coordinate is in seconds. Which eliminates answer B

Also, the Y-coordinate is measured in 40 meters per unit, this eliminates C and D.

simplify " t+t-q+t-q-q"​

Answers

Answer:

-3q+3t

Step-by-step explanation:

Law of sines problem, please help. solving for x
​

Answers

Answer:

x = 62.9° (3 sig. fig.)

Step-by-step explanation:

Simply by using the cos law,

cosx = (1.3² + 2.1² - 1.9²)/2(1.3)(2.1)

x = 62.9° (3 sig. fig.)

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