Solve using the quadratic formula: 2x^2 + 7x - 5 = 0

Answers

Answer 1

Step-by-step explanation:

my answer is in the above image

Solve Using The Quadratic Formula: 2x^2 + 7x - 5 = 0

Related Questions

Se desean plantar 361 plantas de limón, en un terreno cuadrado, de manera que en cada fila queden a un metro de distancia. a)Cuántas filas de limones habrá? b)Sobrarían algunos arbolitos? c)cuántos?

Answers

Answer:

a) El número de filas de limones es [tex]n = \sqrt{361} = 19[/tex]. Es decir, se necesitan 19 filas de árboles.

b) No sobran árboles.

c) 0 árboles.

Step-by-step explanation:

Dado que las plantas de limón deben cubrir un terreno cuadrado, entonces se debe satisfacer que la siguiente condición:

[tex]n^{2} \le 361[/tex]

Donde [tex]n[/tex] es el número de filas de árboles de limón.

Si [tex]n < 19[/tex], entonces sobrarán árboles.

a) El número de filas de limones es [tex]n = \sqrt{361} = 19[/tex]. Es decir, se necesitan 19 filas de árboles.

b) No sobran árboles.

c) 0 árboles.

A man has a coupon to buy 8 oranges, he already has six, so how many does he have if he uses his coupon to buy 8 more oranges.

Answers

Answer:

14 oranges

Step-by-step explanation:

8+6

PLEASE ANSWER FAST 60 PTS

Answers

Answer:

Dude I can't read that are you trying to solve for x?

Step-by-step explanation:

Answer:

x = 15

Step-by-step explanation:

can someone PLEASE help me with this i’m struggling and i need to finish in 20 minutes!!! HELPPPP

Answers

Answer:

I believe that the answer would be that Angles A is obtuse while b and c are acute. Similarly Angle F is obtuse while E and G are acute. A~F

Step-by-step explanation:

A~F

E~B

G~C

Answer:

[tex]\triangle CAB\sim \triangle GFE[/tex]

Step-by-step explanation:

When writing your similarity statement, the vertices listed should correspond with their respective order.

In the two triangles:

Point C corresponds with point G

Point A corresponds with Point F

Point B corresponds with Point E

Therefore, we have:

[tex]\triangle CAB\sim \triangle GFE[/tex]

A=(a+b)h

Work out the value of h when A = 38.64, a = 5.5 and b = 3.7.

Answers

Answer:

h = 8.4

Step-by-step explanation:

38.64 = [tex]\frac{(5.5+3.7)h}{2}[/tex]

38.64(2) = 9.2h

77.28 = 9.2h

h = 77.28/9.2

h = 8.4

This is just for people to get points!! Whats 10 x 10?

Answers

Answer:

is equls to 100 Brainliest 6

Determine the smallest integer value of x in the solution of the following inequality.
5x + 3 > 10

Answers

Answer:

5x = 10 - 3

x = 7/5

but 5x +3 has to be greater than 10 so x has to be greater than 7/5

so x = 2

which number is greatest?

Answers

Answer:

3.88

Step-by-step explanation:

→ Calculate the exact value of each number

19 ÷ 5 = 3.8

3.88 = 3.888888888

15 ÷ 4 = 3.75

√15 = 3.8729

How do you find the equations of the vertical and horizontal asymptotes for a graph when you only have the graph and no function?

Answers

Answer:

See below for answer and explanations (as well as an attached graph)

Step-by-step explanation:

Pay attention to the behavior of the asymptotes. If the asymptotes are approaching a certain x-value or y-value, then that value is undefined for the function.

Take for example [tex]y=\frac{1}{x}[/tex]:

As x approaches ∞ and -∞, then y approaches 0, which is our horizontal asymptoteAs y approaches ∞ and -∞, then x approaches 0, which is our vertical asymptote

See the graph for a visual.

On a number line, a number, b, is located the same distance from 0 as another number, a, but in the opposite direction. The number b varies directly with the number a. For example b = 2; when a = -2 which equation represents this direct variation between a and b? O b= -a O-=-a Ob-a=0 Ob(-a) = 0

Answers

Answer:

b = -a

Step-by-step explanation:

If a and b are both positions from 0, we need to write an equation that relates both positions. The problem is explaining that the position of a is opposite to the position of b.

If a = 2; b = -2. If a = 1000; b = -1000.

If a = -x; b = x. Then:

-a = x

-a = x and b = x, that means:

b = -a

What is the slope of the linear function of (6 , 2) (9 , 8)

Answers

Answer:

1/2

Step-by-step explanation:

The formula for slope is [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]

9-6=3

8-2=6

3/6=1/2

What is the atmospheric pressure?
a. 4.7 pounds per square inch

b. 13.2 pounds per square inch

c. 1.7 pounds per square inch

d. 14.7 pounds per square inch

Answers

Answer:

Step-by-step explanation:

The atmospheric pressure is about 101325Pa.

Pascal is a unit for pressure and since pressure can be defined as force/ area, the pressure can also be written as 101325 N/m².

1 m² ----- 101325 N

Pounds is a unit for mass, so let's relate force (Newtons) to mass.

[tex]\boxed{F = ma}[/tex]

☆ where F= force, m= mass and a= acceleration due to gravity

Since the gravitational field strength is about 9.8 N/kg on earth, a= 9.8.

101325= m(9.8)

m= 10339 Kg (5 s.f.)

Since 1 kg is about 2.205 pounds,

= (10339 ×2.205) pounds

= 22797.495 pounds

= 22797 pound (5 s.f.)

1 m² ----- 22797 pounds

Now convert m² to in².

1 m² is about 1550 in², thus

1550 in² ----- 22797 pounds

1 in²----- 22797 ÷1550

1 in² ----- 14.708 pounds (5 s.f.)

1 in² ----- 14.7 pounds (3 s.f.)

Thus, 1 atm≈ 14.7 pounds per square inch.

Answer:

d. 14.7

Step-by-step explanation:

Can I get help with these too? Thank you!!!!!

Answers

For ABC:

The interior angle of C is 180 - 142 = 38
The three interior angles add up to 180°
(2x - 15) + (x - 5) + 38 = 180
3x - 20 + 38 = 180
3x + 18 = 180
3x = 162
x = 54

The measure of angle ABC = x - 5 = 54 - 5 = 49

For JKL:
The interior angle of L is 180 - 100 = 80°
The 3 interior angles add up to 180°
(2x + 27) + (2x - 11) + 80 = 180
4x + 16 + 80 = 180
4x + 96 = 180
4x = 84
x = 21

The measure of angle JKL is 2x - 11 = 2(21) - 11 = 42 - 11 = 31°

The scale factor of the enlarged image of a bug is 1:0.125. The diagram measures 16mm, what is the actual length

Answers

Answer:

it is 2mm long

Step-by-step explanation:

16x0.125=2 so it is 2mm long

Someone PLEASE help FAST, I'm almost out of time for this question, and I really need the answer!! I'll give brainliest for good answers.

Answers

Answer:

B. Table B

Step-by-step explanation:

It is

Which of the following will result in a rational number? Select all that apply.
A. 645+9√4
B. 645−5√7
C. 645×9√4
D. 645÷5√7
help me please

Answers

Answer:

B. 645−5√7

Correct me if iam wrong

the answer is B
i’m pretty sure

A town of 8660 people is expected to grow by 5% next year. What is the (total) expected population of the town next year?

Answers

Answer:

9093

Step-by-step explanation:

5÷100×8660=433

8660+433=9093

Hope this helps

Using percentage, the expected population of the town next year is 9093 people.

What is percentage?

Percentage is defined as a given part or amount in every hundred.

Current population = 8660 people

Expected population next year = [tex]8660 + \frac{5}{100}*8660 = 8660 + 433 = 9093[/tex] people.

Learn more about percentage here

https://brainly.com/question/24159063

#SPJ3

Seriously I haves to do this again pls answer for real
And sure I do have 1106 points left but still stop wasting peoples time

Answers

Answer
1/15
Step by step explanation
Add all numbers up and then divide the number of newspapers by the total numbers added up and simplify

Find the surface area

Answers

Answer:

1,298 yd²

Step-by-step explanation:

Formula for surface area of a rectangular prism:

A = 2(wl + hl + hw)

Plug your units in.

A = 2[(11 x 11) + (24 x 11) + (24 x 11)] = 1,298

SIMPLIFY USING THE DISTRIBUTIVE PROPERTY OF RATIONAL NUMBERS
1/5+ (2/5+3/5)

Answers

Answer:

6/5

Step-by-step explanation:

1/5 + (2/5 + 3/5)

solve for the bracket first

1/5 +(2+3/5)

1/5 + (5/5)

1/5 + 1

1+1*5/5

6/5

another method

1/5 + (2/5 +3/5)

open brackets)

1/5 + 2/5 + 3/5

since their denominator are same u can add their numerator

1+2+3/5

6/5

Find the slope of the line that passes through the following points E (4, 1 2/3) and F (-2,2/3)

Answers

Answer:

1/6

Step-by-step explanation:

To find the slope, we use the slope formula

m = ( y2-y1)/(x2-x1)

m = ( 2/3 - 1 2/3)/(-2 -4)

= -1/-6

= 1/6

Find the side length, b.
Round to the nearest tenth.
B=90°
a=6
c=7

Answers

Answer:

b = 9.2

Step-by-step explanation:

Using the Pythagorean theorem (in your case): [tex]a^{2} +c^{2} = b^{2}[/tex]

Plug in your values and solve for x:

[tex]6^{2}+7^{2} =b^{2}\\36+49 =b^{2} \\85 = b^{2} \\b = \sqrt{85} \\b = 9.2[/tex]

Yes, B is equal to 9.2

Help I’ll mark as brainliest!!

Answers

Answer:

Step-by-step explanation:

Your welcome! :)

Good Luck!

Answer: x=32 (upper answer is wrong!)

Explanation: You set the equations equal to each other, then get the variables onto one side, then solve! I checked with a calculator, so this is correct :)

What must be written on the dotted line to make a correct algebraic statement?
Write your answer on the dotted line.
6t+3t-…………………………..=t

A) 8t
B) t
C) 3t

Answers

Answer:

Option A = 8t

Step-by-step explanation:

6t + 3t - 8t = t

6t + 3t = 9t

9t - 8t = t

Which statement is true? A.|-2.5|>|-3|

B: |-2.5|<|-3| C: |-2.5|=|-3|

Answers

Answer:

Step-by-step explanation:

|-2.5|<|-3|

l -2.5 l = 2.5

l -3 l = 3

2.5 < 3

Point A is reflected across line y=x and the n dilated by a factor of 3 using the origin as the center of dilation.

Answers

Answer:

B. A"(6, 12)

Step-by-step explanation:

A(4,2) --->reflected across y=x ---> A'(2, 4) --->

dilated k =3 ---> A" ( 2×3 , 4×3) => A" (6, 12)

Jagan and Mithun calculated the value of 12 - 6 + 4.The steps are given alongside.
Who has given the correct answer, justify

Answers

Answer:

10.

Step-by-step explanation:

Explanation:

[tex]12 - 6 + 4[/tex]

In order to solve this, we must use PEMDAS.

This is because there are more than one operations involved.

PEMDAS is the order in which you must solve the operations.

PEMDAS STANDS FOR:

ParenthesisExponential Notation (exponents)Multiplication/division (do whichever comes first)Addition/subtraction (do whichever comes first)

Solve.

Now, using PEMDAS, I will solve.

There are no parenthesis.

There are no exponents.

There is no multiplication nor division.

There is addition and subtraction.

[tex]12-6+4[/tex]

[tex]12-6=6[/tex]

[tex]6+4[/tex]

Lastly, there is addition.

[tex]6+4=10[/tex]

Conclude:

I, therefore, believe [tex]12-6+4=10.[/tex]

You did not clarify the answers of Jagan nor Mithun.

So, whichever person got the answer of 10 is correct.

can someone please help me?

Answers

statement: they are both 90 degree angles
reasons: they both make an L shape and have a square indicating that they are both right angles

An equation with an unknown value is shown 13/10 + 2/100= ?/100

Answers

Answer:

132/100, or 1.32

Step-by-step explanation:

Just change 13/10 to 130/100 and add 2/100 to make it 132/100, or 1.32 :)

Which of the following shows the correct process for finding the area of the shape shown below?

Answers

Answer:

A = bh = A = 9.5*14

Step-by-step explanation:

What they said ⟟ think

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