Mathematics High School

4x^2 - 7x -2 = 0
PLEASE HELP! I WILL MARK AS BRAINLIEST!

Answers

Answer 1

Answer:

2,-1/4

you can use the calculator to find the answer .

depending on your calculator you can find it in different ways but the most common one that works on most of tge calculators is pressing mode button the press 5 then 3. then put a as tge coeffcient of x^2 and b as coefficient of x and c as the number without any x

Related Questions

LOOK I really new help on this I will give u cash for it just give me your cash app or Venmo please help this is so many points

question
(60-5.8) ÷ 5 - 3^2
explain in an essay how to do this TY!!

Answers

Answer:

(60-5.8) ÷ 5 - 3² = 1.84 (approx)

Step-by-step explanation:

(60-5.8) ÷ 5 - 3²

First simplify the numbers inside the bracket.

(60-5.8) = 54.2

Now, the equation is in the form of,

54.2 ÷ 5 - 9

Put 54.2 ÷ 5 in a bracket for easy calculation.

(54.2 ÷ 5) - 9

Now simplify the numbers inside the bracket again, 54.2 ÷ 5 = 10.84

Subtract 9 from 10.84

10.84 - 9

You will now get the answer as,

1.84 (approx)

Autumn measures the angle of elevation from the ground to the top of an 18-foottall tree as 27°. To the nearest tenth of a foot, how far is she from the tree?

Answers

Answer:

35.3 ft (nearest tenth)

Step-by-step explanation:

Please see the attached picture for the full solution.

8 folders cost $25.20. Write an equation to determine the cost of 3 folders.

Answers

Answer:

9 dollars and 45 cents

Step-by-step explanation:

First find the price of one folder.

$25.20 divided by 8 = $3.15

Then, multiply by 3.

$3.15 x 3 = $9.45

(I accidentally used 3.18 instead of 3.15. Someone corrected me.)

Answer:

25.20 divided by 8 = $3.15 x 3 = 9.45

Step-by-step explanation:

used a calculator, Hope this helps!

Sarah Scout Troops sold 80 boxes of shortbread cookies shortbread cookies made up 20% of the troops cookie sales how many boxes of cookies did Sarah Scout Troops sell in all ?​

Answers

Answer:

400

Step-by-step explanation:

20x5=100

80x5=400

In a race , Ram covers 5 km in 20 min. How much distance will he cover in 100 min ?
A.25 km
B.26 km
C.35 km
D.40 km

Answers

Answer:

25 km

Step-by-step explanation:

1 km in 4m

so

100/4 = 25

25km

A customer buys a refrigerator for $650 and must pay a sales tax of 6% of the cost. What is the total cost of the refrigerator?
A)$108.33
B)$589
C)$679
D)$689

Answers

Answer:

A

Step-by-step explanation:

because he is rich

What Expression goes with the Phrase: "The Product of 4 and the
difference of 10 and b."
A. 4(b-10)
b. 4x10 -b
C. 4b- 10
d. 4(10-b)

Answers

Answer:

the correct answer is 4(10 -b)

A bedroom door has an area of 21 square feet. Its perimeter is 20 feet. What are the
dimensions of the door?

Answers

Answer:

The door is 7 feet x 3 feet

Step-by-step explanation:

AREA: 7 x 3 = 21

PERIMITER: 7 + 7 + 3 + 3 = 20

find the value of the variable and the length of each chord.if necessary, round your answers to the nearest tenth

Answers

Answer:

X = 2.4

MN = 7

JL = 7.4

Step-by-step explanation:

HELP ME PLZ 20 POINTS AND BRAINLIEST

Answers

Answer:

3584

Step-by-step explanation:

How do I change my level? It says I am in high school but I am only in middle school.

Answers

Answer:

go on your profile ---> edit profile----> preferences

Step-by-step explanation:

Three sets Venn diagram

Answers

Answer:

I hope this helps a little bit

if margrate has a basket of apples and pears. the number of apples equals three more than twice the number of pears. if there are 15 pieces ot fruite altogether how many apple and pears are there?​

Answers

Answer:

There are 6 pears and 9 apples.

Step-by-step explanation:

The equation would be a=3+2p

After paying $3 for a sandwhich, Trevor has $9. How much money did he have before buying the sandwitch

Answers

Answer:

12 dollars

Step-by-step explanation:

9+3

The answer is 12 because of the following reason
If you ad 3 to 9 dollars it will equal 12

The sum of twice a number and 4 times another number is 4. The first number
decreased by the second number is 5. Find the numbers.

Answers

32 is the answeriikjkihhhnmdlshsndjdk

Write a function equation that represents a line that contains the two points (-3, 5) and (2, 10).

Answers

Step-by-step explanation:

1. 1st of all calculate the gradient

( - 3, 5) ( 2, 10)

Gradient = (10 - 5) / ( 2--3)

= 1

2. Then find the eq

Y = mx + c

Where m is the gradient

y= 1x + c

Now replace any 2 coordinates from above in the eq.

For ex I'm taking (2, 10)

Y = 1x + c

In the coordinate, x = 2 and y =10

By replacing this in the eq, I will find c

10 = 1(2) + c

2 + c = 10

c = 10 - 2

= 8

So the eq is y = x + 8 ⬅️

What is the value of x in the figure
below?
PLEASE Help

Answers

Answer:

C) x = 50°

Step-by-step explanation:

In this figure, you can find x by first finding the three angles of the triangle and then applying the Vertical Angle Theorem. First, you need to find the angle in the top right. You can do this by subtracting 95 from 180 since 95 and the missing angle are supplementary:

180 - 95 = 85°

Now, you know two of the angles in the triangle: 85° and 45°. The angles of a triangle add up to 180°; you can use this knowledge to find the triangle's third angle:

85 + 45 + t = 180 (where t is third angle)

130 + t = 180

t = 50°

Now that you know the measure of the third angle, you can apply the Vertical Angles Theorem to find x. The Vertical Angles Theorem states that if two lines intersect, the vertical angles are equal. x is the vertical angle pair for the 50° angle, and therefore x must equal 50°.

Hey there!

To solve this, we can use the linear pair theorem for the 95 degree angle and the missing angle next to it. That gives us 85.

Next, we can use the angles sum theorem for a triangle, and solve for the angle across from x. That gives us 50.

Lastly, we can use the vertical angles theorem, which shows us that x is equal to the angle opposite from it, or 50.

For more information see https://brainly.com/question/22663173

Have a terrificly amazing day! :D

Solve the square rove equation. 5-2Vx=11
(V=square root)

A.X=9,X=3
B.X=3
C.X=4
D.no solution

Answers

Plug the equation into Photomath it’ll tell you

Brainliest for correct answer

Answers

Answer:

a) b

b) d

Step-by-step explanation:

someone plz answer this now

Answers

Answer:

x = 90°

Step-by-step explanation:

The diagonals of a rhombus are perpendicular bisectors of each other, so

x = 90°

Translate algebraic expression into a word phrase: 2 ( 5 + t )

Answers

Answer:

two times the sum of a number and 5

Step-by-step explanation:

What is the value of n in the equation below?

StartFraction a Superscript n Over a cubed EndFraction = a Superscript 9

Answers

Answer:

ok ok it it 12

Step-by-step explanation:

stay safe 2021

Answer:

12

Step-by-step explanation:

Edge

pls help with mathhh !
thx !

Answers

Answer:

z = 65

Step-by-step explanation:

z + 81 + 34 = 180 (Sum of angles in a triangle is 180)

z + 115 = 180

z = 180 - 115

z = 65

z=65 i’m prtty sure..........

Alisha received a fruit basket as a thank you gift and it had 18 tangerines, 4 pears, 2 plums, 6 bananas, and 3 peaches. Write the ratio of tangerines to pears and bananas in simplest form.

Answers

Answer:

9:14

Step-by-step explanation:

18:(18+4+6)

18:28

(18÷2);(28÷2)

9:14

8. Is this number correctly written in scientific notation? 6.875 x 10 yes O no​

Answers

Answer:

No

Step-by-step explanation:

I believe you have to approximate or round it off.

that will be 6.9.

pls help asap no wrong answer pls

Answers

Answer:

answer is in the picture.

Answer:

1/2

Step-by-step explanation:

hii please help i’ll give brainliest!!

Answers

Answer:

third one i think soo ( a push or pull acting on an object )

Select the correct answer.
How many solutions exist for the absolute value equation 2|x + 2| + 1 = 9?


0

1

2

3

Answers

Answer:

There are 2 solutions for 2|x + 2| + 1 = 9

Step-by-step explanation:

Hope this helps

What is the inverse of H(x)=1/2x+3

Answers

Answer:

x=-6

Step-by-step explanation:

Answer:

[tex]h^{-1}[/tex] (x) = 2x - 6

Step-by-step explanation:

let y = h(x) and rearrange making x the subject

y = [tex]\frac{1}{2}[/tex] x + 3 ( multiply through by 2 to clear the fraction )

2y = x + 6 ( subtract 6 from both sides )

2y - 6 = x

Change y back into terms of x with x = [tex]h^{-1}[/tex] (x)

[tex]h^{-1}[/tex] (x) = 2x - 6

What is an equivalent ratio to 3/4?

Answers

Answer:

6/8

Step-by-step explanation:

multiply both of them by 2 and its equal.

you get 6/8

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