Please help i have exam tom. ​

Please Help I Have Exam Tom.

Answers

Answer 1

Answer:

Step-by-step explanation:

this is a simultaneous equation question

f(1)=8  so  a(1) + b = 8

f(4)=17 so a(4) + b = 17

can you figure this out from here ???

if you can't below is how to solve it

|

|

|

|

|

|

|

|

|

|

|

a + b = 8

4a+b=17

multiply the top equation by 4 and then subtract the bottom one from the top

4a+4b = 32

-(4a +b = 17)

3b = 15

b=5

now plug 5 into the first equation

a + 5 = 8

a=3

there you go :)


Related Questions

the perimeter The area of squre Plat is 100 m² Find at the plot o a​

Answers

Answer:

perimeter=40m

Step-by-step explanation:

PERIMETER=(AREA ROOT)*4

                   =10*4=40m

4. Find the range of the number line shown below. ​

Answers

Answer:

I think is 4

Step-by-step explanation:

order the following expressions by their values from least to greatest

Answers

N-Q, N, Q-N

Explanation: N=-2/Q=1
Equations:
-2-1=-3(N-Q)
-2(N)
1- -2=3(Q-N)

The GCF of 10 and 18 is 6.
TRUE
FALSE

Answers

Answer:

False

Step-by-step explanation:

Because the gcf of 10 and 18 is 2

Answer:

False

Step-by-step explanation:

Any factor of a number must evenly devide into the number. 6 does not even divide into 10, so no. The GCF of 10 and 18 is 2.

please, help! i really need it !! like rnnn!

Answers

C, She can read 216 words per minute, bc 72 divided by 1/3 is 216

Can someone explain this / answer, Its a picture

Answers

Answer:

option c is the correct answer (l=1 cm and w=42cm)

Step-by-step explanation:

length(l) = 1.00cm

width(w)= 42.00 cm

ACCORDING TO FORMULA

Area of rectangle = l×w

=1 cm × 42 cm

= 42cm^2

The lines below are perpendicular. If the slope of the green line is ž, what is
the slope of the red line?
-5
5
m =

Answers

Answer:

B or (-2/3)

Step-by-step explanation:

Perpendicuar lines have negative inverse slopes SO

3/2 ---> -2/3

Angles A and B are complementary. The measure of angle A
is yº. What is the measure of angle B?

Answers

Answer:

D, [tex](90-y)[/tex] degrees

Step-by-step explanation:

Complementary angles are angles that add up to 90 degrees. Since angle A and angle B are complementary, they add up to 90. Since the value of angle A is y degrees, we can substitute y into the equation to get

[tex]y+B=90[/tex]

To get the measure of angle B, we must isolate B.

To isolate B, we have to remove every term from its side.

The only term on the side that B is on other than B is y. To remove y from the left side, we must subtract y from both sides. Doing this will result in the equation:

[tex]B=90-y[/tex]

The only answer option that meets this criteria is D.

PLEASE EXTREMELY URGENT!!!
what is the solution to -2(8 x - 4) < 2x + 5

o x>1/6
o x<1/6
o x>6
o x<6

Answers

Answer:

1/6 <x

Step-by-step explanation:

-2(8 x - 4) < 2x + 5

distribute

-16x+8 < 2x+5

Add 16x to each side

-16x+16+8 < 2x+16x+5

8<18x+5

Subtract 5 from each side

8-5 < 18x+5-5

3<18x

Divide by 18

3/18 <18x/18

1/6 <x

I think it migth be the first one

give me brainlieSt

it is 1/6

please help me !! :)

Answers

I’m not one hundred percent but I think it’s C

can you help me please.

Answers

45 is the answer
hope this helps :)

Answer:

45

Step-by-step explanation:

1st term is 2

2nd term is 3

3rd term is 4

.

.

.

nth term is (n+1)

because common difference is 1, so 1st term = 1 + common difference = 1+1 = 2, for any term, we take n + common difference, so n+1

putting n = 44,

44th term is 44+1 = 45

Answered by GAUTHMATH

What is the slope of the line shown below?
10+
5
(9, 1)
o A. -
OB.
OC
10
15
(-3,-7) 5
10
O
D.
WIN

Answers

Answer:

D 2/3

Step-by-step explanation:

Rise over run. The x values is -3 and 9 which is the distance or run between the dots. Find the distance by finding which number is between then so -3+x=9 where x is 12. The y values are -7 and 1. Find y where -7+y=1 where y is 8. That is the rise. So the rise is 8 and that is over the run, 12, gives you 8/12 which can be simplified to 2/3.

HELLLPPP 31 kilograms is the same as how many pounds? Hint: 1 kg = 2.2 lb Round your answer to the nearest tenth.​

Answers

Hi! I'm happy to help!

To solve this, we need to turn all the kilograms into pounds. We know that to turn 1 kg into a pound, you multiply the amount of kilograms by 2.2.

Knowing this, we can multiply our 31 kilograms by 2.2.

31×2.2=68.2

This means that 31 kilograms is equal to 68.2 pounds.

I hope this was helpful, keep learning! :D

Find the length of side x in simplest radical form with a rational denominator.
4.
609
30°
x
C
Answer: <=
Submit Answer

attempt 1 out of
I really need help with this

Answers

Answer:

x=2

Step-by-step explanation:

Since this is a right triangle, we can use trig functions

sin theta = opp/ hyp

sin 30 = x/4

4 sin 30 =x

4 ( 1/2) =x

2 =x

Rotate the vector 3,-2 90 degrees clockwise about the origin.

Answers

Answer:

-2,-3

Step-by-step explanation:

Answer:

-2 -3

It worked for me on acellus

Step-by-step explanation:

Triangle LMN is dilated by a factor of 1.25 to create triangle PQR what is the length of PQ A 20 cm B 18.75 cm C 17 cm di 12 cm

Answers

Answer:

See explanation

Step-by-step explanation:

Given

[tex]\triangle LMN \to \triangle PQR[/tex]

[tex]k = 1.25[/tex]

Required

The length of PQ

[tex]\triangle LMN \to \triangle PQR[/tex] means that the side lengths of LMN are multiplied by 1.25 to get the side lengths of PQR

And it implies that the following sides are corresponding

[tex]LM \to PQ[/tex]

[tex]MN \to QR[/tex]

[tex]LN \to PR[/tex]

So, we have:

[tex]PQ = k * LM[/tex]

[tex]PQ = 1.25* LM[/tex]

The question is incomplete.

Assume LM = 16, then:

[tex]PQ = 1.25* 16[/tex]

[tex]PQ = 20[/tex]

the volume of hemisphere is 1527.4cm^3.find the radius of the hemisphere to the nearest whole whole number.(take π to be 22/7)​

Answers

Answer:

radius of the hemisphere = 9 cm approx

Step-by-step explanation:

Volume of hemisphere = [tex]\frac{2}{3} \pi r^{3}[/tex]

1527.4 = [tex]\frac{2}{3} * \frac{22}{7} * r^{3}[/tex]

[tex]\frac{7*15274*3}{2*22*10}[/tex] = [tex]r^{3}[/tex]

[tex]\frac{320754}{440}[/tex] = [tex]r^{3}[/tex]

[tex]r^{3}[/tex] = 729

r = [tex]\sqrt[3]{729}[/tex]

r = 9 cm approx.


Please help me find the area of this figure! Thanks!!

Answers

Answer:

Step-by-step explanation:

Figure consists of three parts; one Triangle , one   rectangle and  a square.

Triangle:

Base = b = 13+9 = 22 cm

height =  16 cm

[tex]Area \ of \ triangle = \frac{1}{2}* b*h\\\\= \frac{1}{2}*22*16\\\\= 11 *16\\\\= 176 \ cm^{2}[/tex]

Rectangle 1:

length = 14 cm

Width = 4 cm

Area of R1 = length * width = 14 * 4 = 56 cm²

Area of Square R2:

side = 8 cm

Area of square = side * side = 8 * 8 = 64 cm²

Area of shaded region = 176 + 56 + 64 = 296 cm²

Sally collected 22 pounds of cans to recycle
and plans to collect 1.8 more pounds each
week. In this situation, what is the value of
the y-intercept?

Answers

Step-by-step explanation:

this is an example u can see and write it yourself...

Problem 2 Find the mBC.

Answers

Answer:

38º

Step-by-step explanation:

<BAC is a central angle. The corresponding arc, BC will be equal to the measure of the central angle.

So mBC = 38º

Evaluate the expression when x=-6.
x^2-9x+4

Answers

Answer:

- 14

Step-by-step explanation:

x = - 6

x^2 - 9x + 4

= ( - 6 )^2 - 9 ( - 6 ) + 4

= 36 + 54 - 4

= 36 - 50

= - 14

Answer:

[tex]94[/tex]

Step-by-step explanation:

[tex]x^2 - 9x + 4[/tex]

[tex](−6 {)}^{2} −9 (−6) + 4[/tex]

[tex]36 − 9 (−6) + 4[/tex]

[tex]36 + 54 + 4[/tex]

[tex]90+4[/tex]

[tex]94[/tex]

Hope it is helpful....

Write an equation that represents the line.
Use exact numbers

Answers

Answer:

y = 5/6x + 8/3

Step-by-step explanation:

y = mx + b (m is the slope, b is the y-intercept)

(-2, 1) (4, 6)

m = change in y / change in x

m = 5/6

y = 5/6x + b

Plugging in (4, 6):

6 = 5/6(4) + b

6 = 20/6 + b

36/6 = 20/6 + b

36/6 - 20/6 = b

b = 16/6

b = 8/3

y = 5/6x + 8/3

I'm stuck on here, please, someone help me.

Answers

Answer:

Answer B

Step-by-step explanation:

therw is one full one and one with five

answer please and no links .....thank you​

Answers

Answer:

8,3,-1,3,15

Step-by-step explanation:

y=x^2-1

y(-3)=8

y(-2)=3

y(0)=-1

y(2)=3

y(4)=15

which of the following equations is an example of direct variation?

Answers

Answer:

C

Step-by-step explanation:

[tex] \frac{x}{3} [/tex]

determine the quadratic equation in standard form of a parabola with a zero at x=5 and vertex ar (-3, 32). start with factored form

a)find the other zero

b) create your factored form equation

c) create your standard form equation ​

Answers

Answer:

see image...

start with Graphing Form: y = a(x-h)²+ k

knowing that h is the x value (negative of it)  of the vertex , and k is the y value of the vertex

Graphing Form Equation: y =  a(x+3)²+32

you are also given that when the x value is 5 the y value has to be 0

0 = a(4)^2 + 32

a has to be - 1/2    

   

Step-by-step explanation:

a. 51 b.102 c.112 d.258

Answers

Might need to add the question with the multiple choice

This morning, Sam walked 4 kilometers in 50 minutes. At what rate did Sam walk?

Use the formula r = StartFraction d Over t EndFraction, where r is the rate, d is the distance, and t is the time,
0.08 kilometers per minute
12.5 kilometers per minute
46 kilometers per minute
200 kilometers per minute

Answers

Answer:

A 0.08 kilo per min

Step-by-step explanation:

This morning, Sam walked 4 kilometers in 50 minutes. At what rate did Sam walk?

Use the formula r = StartFraction d Over t EndFraction, where r is the rate, d is the distance, and t is the time,

0.08 kilometers per minute

12.5 kilometers per minute

46 kilometers per minute

200 kilometers per minute

One of the lengths of a leg on a right angled triangle is 15 ft the length of the hypotenuse is 17 ft find the length of the other leg

Answers

The length of the other leg should be 8ft

A rectangular school yard has a perimeter of 114 meters and an area of 702 square meters. What are the dimensions of the school yard?

Answers

18 by 39.

Reason:
2x+2y=114 (perimeter)
XY=702 (area)
X=18
Y=39
Other Questions
Can someone help with these 2? Corporation sold 210000 watches and produced 217000 watches that it sold for $19 each. The company determined that fixed manufacturing cost per unit was $8 per watch. The company reported a $1,302,000 gross margin on its financial statements. Determine the total contribution margin. the different between culture and stratification what was Gregors biggest priority in life before he turned into an insect? Find a formula for the given polynomial. Read the information in the chart based on "Music Gets Personal, and answer the question.Which sentence best completes the paraphrase of the passage?In 1877, Thomas Alva Edison solved the problem of capturing sound when he made the first sound recording.In 1877, Thomas Alva Edison took the first steps toward making a personal music player.Thomas Alva Edison made a sound recording, and he became wealthy after this invention.Thomas Alva Edison invented a way to help people hear musical performances. Subtract.7x2 - 5x+3(2x + 7x-4) write a programmimg code in c++ for school based grading system, the program should accept the subject in the number of students from a user and store their details in the array of type student(class) the student class you have:1. number student name, index number remarks as variables of type string, marks as integer and grade as char.2. avoid function called getData which is used to get student details 3. avoid function called calculate which will work on the marks and give the corresponding great and remarks as given below on Marks 70-100 grade A remarks excellent Mark 60-69 Grade B remarks very good marks 50-59 grade C remarks pass maths 0-49 grade F remarks fail a.) x 2b.) x > 2c.) x < 2d.) x 2 Given: A and B are complementary angles. B and C are complementary angles. Prove: A C Find the sum of the arithmetic series given ai = 45, an = 85, and n = 5. predict meaning of psychological Question You should spend about 35 minutes in this part.You have been talking about Teacher's Day with your classmates.In about 120 words, write an essay on how your school celebrated Teacher's Day.You may use the notes below to help you.Speech byprincipalTeacher'sDayOverallfeelingActivitiesheld it began 63F, and the temp changed by 8F over the course of 6 hours whats the minimum and maximum??? 8- Analiza la vieta y el texto de un peridico espaol y escriba cul la diferencia entre ayer yhoy segn la imagem Use the equation d=st where d= distance, s= speed, and t= time. If you ride a skateboard at a speed of 8m/s for 12 seconds, how far do you travel Find the equation of the tangent line at the point (0,1) of the graph of the function f(x) = x^3 - 2x + 1 ? If the city bus through Austin travels at 40 miles per hour, how many mileswill it travel in 4.5 hours. Use of base.......? write important things A-Rod Fishing Supplies had sales of $2,500,000 and cost of goods sold of $1,710,000. Selling and administrative expenses represented 10 percent of sales. Depreciation was 6 percent of the total assets of $4,680,000.What was the firm's operating profit?