Mathematics High School

Subject: Add Maths

Please answerr.

x-2 is a factor of x^3+ax^2+bx-4. Express b in terms of a.

The answer is b=-2-2a but can someone please show the working?

Answers

Answer 1

Answer:

ax2+x3+bx−4

Step-by-step explanation:

Related Questions

_x_=-0.75 The two rational numbers have to have what in common?

Answers

Answer:

-3:4 is The two rational numbers have to have in common.

Ratnam hired a car from a car renting agency which charges a flat amount of Rs x for travelling up to 40 kilometres and Rs. y per km for every kilometre travelled thereafter. How much should Ratnam pay the agency for a journey of 50 kilometres in Rs. ?

Answers

Answer:

Rs. X + Rs. 10y

Step-by-step explanation:

Charge for 40 km travel = Rs. x per km

Charge for every additional km traveled = Rs. y

Amount paid for 50 km

Fixed charge for 40km = Rs. X

Additional km = 50 - 40 = 10 kilometer

Total charge :

Rs. X + Rs. 10y

Give a decimal approximation of your answer to the second question using 3.14 to approximate pie. Answer for the second question: 112n cm^3. Answer choices: A. 154.68cm^3, B. 252.68cm^3, C. 351.68cm^3, D. 421.68cm^3

Answers

Answer:

C.

Step-by-step explanation:

It's 112 * 3.14

= 351.68 cm^3.

what is 3/4/5-2/3/5...

Answers

Answer:

30

Step-by-step explanation:

The / is another symbol for multipation. Just multiply 3 with 4 and 5. Then multiple 2 and 3 and 5, then you subtract 3 times 4 times 5's answer by 2 times 3 times 5's answer. You will get 30 as the final answer

Answer:

In exact form the answer is 1/6 Or in decimal form it would be 1.2, in mixed number form it would be 1 and 1/5

I hope this helps you.

¿Qué es 0.4 como porcentaje?

a) 400%
b) 4%
c) 0.4%
d) 40%​

Answers

the answer is D) 40% !!

Label ABC with the following information.
AB = 35
AC = 62
Find m/c.

Answers

Answer:

m<C = 34.4 °

Step-by-step explanation:

From the question given above, the following data were obtained:

Opposite = AB = 35

Hypothenus = AC = 62

Angle C =?

The value of m<C can be obtained by using sine ratio as illustrated below:

Sine C = Opposite /Hypothenus

Sine C = 35 / 62

Sine C = 0.5645

Take the inverse of sine

C = Sine¯¹ 0.5645

C = 34.4 °

Thus,

m<C = 34.4 °

The equation for the price of a baseball card that was bought for 5 dollars and has appreciated 5% yearly. Find the yearly calue of the card 25 years later

Answers

Answer:

The yearly value of the card 25 years later is $16.93.

Step-by-step explanation:

You can use the following formula to find the future value:

FV=PV(1+r)^n

FV= future value

PV= present value= 5

r=rate= 0.05

n=number of periods of time= 25

Now, you can replace the values in the formula:

FV=5(1+0.05)^25

FV=5(1.05)^25

FV=16.93

According to this, the answer is that the yearly value of the card 25 years later is $16.93.

Can you solve number 1 please.

Answers

slope of f is 5
f(x) = 5x + 2
y= mx + b (linear equation)
m = slope b = y-int

slope of g is 2
Slope formula = change in y
——————
change in x
1. Pick two points
I choose (3,3) and (4,5)
(3,3) —-> (x1,y1)
(4,5) —-> (x2,y2)

y2 - y1 5 - 3
———- = ————- = 2
x2 - x1. 4 - 3

What value(s) of x will make x2 = 36 true? O A. 8 and -8 O.B. 6 C. 6 and -6 D. 6​

Answers

Answer:

C and D

Step-by-step explanation:

If you mean x^2 (x squared), then C and D are both right.

Help please! I don’t have much time left to submit it

Answers

Answer:

5) x=39

Step-by-step explanation:

if you see the triangle it has  two equal sides which mean is an Isosceles Triangle    so if a triangle =180

we can say that   x+x+102=108 if we solve that we got x=39

pls help me with this?

Answers

Answer:

C. 3

Step-by-step explanation:

A^2+B^2=C^2

A^2+4^2=5^2

A^2+16=25

A^2=9

A=3

Sarah would like to build a garden this year. Sarah measured out the outside of her proposed garden and would like to know how many square feet of space she will have to use. Calculate the area of her garden from the picture below.

Please show your work :)

Answers

Answer: 11ft

Step-by-step explanation:

please help me if you can pleasee

Answers

Answer:

Slope for #17 is 3/2

Slope for #18 is -18

Step-by-step explanation:

Pls Answer Fast I will give u 5 Stars

Answers

Answer:

X is 90 degrees

Step-by-step explanation:

I dont know the second part

Please help will give Brainly

Answers

x³ = 1/49
x³ = 1/7²
∛(x³) = 1/∛7² = 1/7^(⅔) = 7^(-⅔)
x = 7^(-⅔)
The answer appears to be C, although there is an unexplained “⅔” below it.

A shop has an offer on jumpers as shown below.

Buy 4 jumpers and get 1 free!
Kara gets 6 jumpers.
After applying the offer, each one ends up costing £8.50 per jumper.
What is the regular cost of one jumper when not in this offer?


​

Answers

Answer:  

Step-by-step explanation:

1/10 + 2.5/10 = 3.5/10 of an hour to make one bracelet. Then change to 20ths so the numerator is a whole number.

Divide your time available by the time it takes to make one.                  

                                               21  

                                               4             = 420= 15 bracelets

                                               7                 28

                                              20

Answer:

10.20 regular cost

Step-by-step explanation:

8.50 x 6 = 51 total

51/5 = 10.20

What is the answer to this question?

Answers

first -10 then divide by 10

W-1<4 need help please

Answers

Answer:

5

Step-by-step explanation:

collect like terms

w<4+1

w<5

GEOMETRY STUFF PLEASE ANDWER DUE IN 20 MINUTES

Answers

Answer:

Statement 2: m∠ ELD = (2x)°

Reason 4: Sum of angles on a straight line is equal to 180°

Statement 6: 2x = 56

Step-by-step explanation:

Since the first step talks about we being given m∠ ELG = 124°, the next thing we are given in the question is that; m∠ ELD = (2x)°

In statement 4,it is written that;

m∠ ELD + m∠ ELG = 180°

The reason behind this is that;

Sum of angles on a straight line is equal to 180°.

For reason 6, we are told it is a subtraction property.

Now the preceding statement gave us;

2x + 124 = 180

Which means that for subtraction property here, we will have;

2x = 180 - 124

2x = 56

If you cut away a triangle of area 59cm^2,the remaining area will be 85cm^2.Find the length of the side of the square before it was cut.?

Answers

Answer: side length = 12

Explanation

let x be the original area

Thus x - 59 = 85

=> x = 85 + 59
x = 144

Since we know the original shape is a square and Area of a square = side x side.

Find side length:

A = a^2

But A = 144

144 = a^2
12 = a

So the side of the square b4 it was cut is 12 cm

time 0:52:40
Simplify
78 x 7² x 74
7° x 75​

Answers

Answer:

282828

75

Step-by-step explanation:

Pls help :) i really need to finish it

Answers

Answer:

ok so if equilateral triangle has 1 inch and box has 9 inch of height, the lateral area would be 27 square-inch

Step-by-step explanation:

Opens right, a=3, vertex: (-5, -2)

Answers

Answer:

What.... what do you need help with

Step-by-step explanation:

Explanation

A car depreciates in value by 17% per year.
If it cost $23 000 when it was new, how much is it worth after 4 years?

Answers

Answer:

17%of 23000

17/100×23000

1 yrs depreciation is 3910

then

after 4 years depreciation is 4×3910

=15640

the worth of after 4 yrs is 23000-15640

=Rs 7360

Pick a blue marble , a green marble , and another blue marble from a bag of 2 blues, 4 reds , 4 greens what is the probability

Answers

i hope my answer help you

Step-by-step explanation:

the probability of pick a blue marble =2/10 ( simplest form =1/5)

the probability of pick a green marble =4/10

the probability of pick another blue marble =2/10 ( simplest form =1/5)

Which of the following expressions are equivalent to -6-(-2)
Pls I need help

Answers

Answer:

A) -6+2

Step-by-step explanation:

Answer is: A explanation:

PLEASE HELP ME WITH THIS MATH PROBLEM WILL GIVE POINTS The population of Old town is 50,000 and decreasing by 30 people per year. The population of New Town x years from now is given bye the function P(x) = 30000(1.1)^x, x greater than or equal to 0. which statement is true?

an explanation would be helpful too!!!

Answers

Answer:

C

Step-by-step explanation:

I took the test

Can someone help me please?!

Answers

Answer:

its three good sir

Step-by-step explanation:

help me answer question 8a and b, and I’ll give u 10 points lol

Answers

Answer:

Step-by-step explanation:

Find h when v = 20 and r = 3

Putting values in the formula

20 = (3.14)(3)2h

20 = (3.14)(9)h

20 = 28.26h

20/28.26 = h

R when v = 100 and h = 5

100 = (3.14)r2(5)

100/5 = 3.14r2

20 = 3.14r2

20/3.14 = r2

6.36 = r2

Square root on both sides

2.52 = r

What is the number of degrees the minute hand of a clock moves between 10:21 and 10:34 pm on the same day?

Answers

.

Step-by-step explanation:

The correct answer is 78

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