Select all equations that have two solutions. a x^2=16 b 4x^2=0 c x^2=-16 d 3x+2=14 e x^2-1=24 f (x+8)(x-8)=0

Step-by-step explanation:

5/4+(12/4_1/2)^2

5/4+((12_8)/4)^2

5/4+1

9/4

Answer:

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

Step-by-step explanation:

Given

[tex]\frac{5}{4}[/tex] + 4 ([tex]\frac{3}{4}[/tex] - [tex]\frac{1}{2}[/tex] )²

= [tex]\frac{5}{4}[/tex] + 4 ([tex]\frac{1}{4}[/tex] )²

= [tex]\frac{5}{4}[/tex] + 4 × [tex]\frac{1}{16}[/tex]

= [tex]\frac{5}{4}[/tex] + [tex]\frac{1}{4}[/tex]

= [tex]\frac{6}{4}[/tex]

= [tex]\frac{3}{2}[/tex]

Answer:

What is the length of the BC line? It is not clear in the figure

Answer:

x=1

Step-by-step explanation:

as the two triangles are similar

So the equation is

5+x/12=5/10

50+10x=60

10x=60-50

10x=10

x=10/10

therefore

x=1

Answer: 56.64%

Step-by-step explanation:

Given: Previous amount of flour = 2.26 kilograms

By the end of the baking session, amount of flour = 0.98 kilograms

Decrease in amount = 2.26-0.98 = 1.28  kilograms

Percent decrese = [tex]\dfrac{\text{decrease in amount }}{\text{previous amount}}\times100[/tex]

[tex]=\dfrac{1.28}{2.26}\times100\approx56.64\%[/tex]

Hence, the percent decrease in the amount of flour = 56.64%

Answer:

yes

Step-by-step explanation:

By pythagoras' theorem,

97^2 = 9409

65^2 + 72^2 = 9409

since 65^2 + 72^2 = 97^2, the triangle is a right angled triangle

This is a question on Pythagoras theorem. If you wish to venture further into it/understand this topic better, you may want to follow my Instagram account (learntionary), where I post some of my own notes on certain topics and also some tips that may be useful to you :)

The given sides  form a right angled triangle , beacuse  (hypotenuse)^2 = (base)^2 + (height)^2

The Pythagoras theorem states that if a triangle is a right-angled triangle, then the square of the hypotenuse is equal to the sum of the squares of the other two sides. Observe the following triangle ABC, in which we have BC2 = AB2 + AC2​​. Here, ​​​​AB is the base, AC is the altitude (height), and BC is the hypotenuse. It is to be noted that the hypotenuse is the longest side of a right-angled triangle.

According to the Pythagoras theorem ,

In a right angle triangle square of the hypotenuse is equals to the sum of the square of the other two sides.

⇒ (hypotenuse)^2 = (base)^2 + (height)^2

∴ (65)^2 + (72)^2 = (97)^2

⇒ 4225 + 5184 = 9409

⇒ (97)^2 = 9409

∴ 9409 = 9409

Hence, the given sides  form a right angled triangle.

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Answer:

Options (A) and (D)

Step-by-step explanation:

We can write the given division as,

[tex]\frac{2x^2+6x-8}{x+5}=2x-4+\frac{12}{x+5}[/tex]

Option (A)

When (2x² + 6x - 8) is divided (x + 5), the remainder is 12.

True.

Option (B)

When (2x² + 6x - 8) is divided (x - 5), the remainder is 12.

False.

Option (C)

When x = 5,

2x² + 6x - 8 = 12

2(5)² + 6(5) - 8 = 50 + 30 - 8

                        = 72

False.

Option (D)

When x = -5,

2(-5)² + 6(-5) - 8 = 50 - 30 - 8

                          = 12

True.

Option (E)

(x - 5) is a factor of 2x² + 6x - 8

If (x - 5) is a factor value of 2x² + 6x - 8 should be zero.

False.

Option (F)

(x + 5) is a factor of 2x² + 6x - 8

If (x + 5) is a factor then by substituting x = -5 in the expression value should be zero.

But the value is 12.

False.

Answer:

yummy

Step-by-step explanation:

Answer:

12+12= 24

Step-by-step explanation:

Answer:

its simple ans is 1.2 acres

Answer:

Hey Jeffrey i got to ur school...

lol

Step-by-step explanation:

C

Answer:

2/3

Hope that helps!

Answer:

3 angles?

Step-by-step explanation:

Answer:

Step-by-step explanation:

monster

Answer:

61

Step-by-step explanation:

Answer:

1 for both slope and rate of change

Step-by-step explanation:

Slope is another word for the rate of change of y with respect to x.

Answer:

h

Step-by-step explanation:

h

Answer:

6

Step-by-step explanation:

9514 1404 393

Answer:

  a) 18/6 = b/4 = r/5

  b) b = 12, r = 15

Step-by-step explanation:

a) The proportion will simply state the fact that the ratio of shirt dimension to logo dimension is the same for all. We'll use 'b' for the bottom dimension and 'r' for the upper right dimension. Then the proportions are ...

  shirt/logo = 18/6 = b/4 = r/5

__

b) In each case, multiply by the denominator to find the value of the variable.

  3(4) = b = 12

  3(5) = r = 15

The bottom dimension is 12 cm; the top right dimension is 15 cm.

Answer:

answer:900

Step-by-step explanation:

[tex]3000 \times 6 \times 5 \div 100 = \\ 300 \times 6 \times 5 = \\ 900[/tex]

Answer:

1 x 10^9

Step-by-step explanation:

Answer:

given us,

n=4

here

3^-n+1-3^-n+2

3^-4+1-3^-4+2

-4+1-4+2

-5

Step-by-step explanation:

we can put value in n .we can power add and subtract then we can cut 3 then power we can add or subtract

Answer:

8/15

Step-by-step explanation:

Given that school A has 600 students and school B has 900 students.

As in School A, 1/3 of the children attend the after-school program.

So, the number of students in school A, who attend the after-school program, n_A= 1/3 x 600 = 200.

As in School B, 2/3 of the children attend the after-school program.

So, the number of students in school B, who attend the after-school program, n_B= 2/3 x 900 = 600.

Total number of elementary school students in the county who attend the after -school program= n_A +n_B = 200 + 600 = 800.

Total number of elementary school students in the county,

N = 600+900=1500

Hence, the fraction of elementary school students in the county who attend the after-school program = 800/1500 = 8/15.

Answer:

E

Step-by-step explanation:

It has 4 lines I think

Please mark brainliest!

Answer:

D-I believe its the square

Step-by-step explanation:

because a square has four lines of symmetry and the other one have less than four

Answer:

y = 2x

Step-by-step explanation:

For every inch there is 2 feet

Answer: $1900

Step-by-step explanation:

Simple math

Answer:

4.265

Step-by-step explanation:

893,76/  0,21=  4.265

Answer:

6x2+2x+4

Step-by-step explanation:

6x^2 has no like terms

3x -x = 2x

8 - 4 = 4

6x^2 + 2x + 4

Answer:

A: cos x

B: cos y

C: tan y

Step-by-step explanation:

The missing value of A, B and C are as follow:

A: cos x

B: cos y

C: tan y

The area of mathematics that deals with particular angles' functions and how to use those functions in calculations. There are six popular trigonometric functions for an angle. Sine (sin), cosine (cos), tangent (tan), cotangent (cot), secant (sec), and cosecant are their respective names and acronyms (csc).

Given:

sin (x-y)/ cos (x- y)

Step 2:

= sin x cos y + cos x sin y / cos x cos y - sin x sin y

Step 3:

= (sin x cos y + cos x sin y) / cos x cos y ÷ ( cos x cos y - sin x sin y ) / cos x cos y

step 4:

= sin x cos y/ cos x cos y + cos x sin y / cos x cos y ÷

  (cos x cos y / cos x cos y - sin x sin y / cos x cos y)

Step 5:

= tan x + tan y / 1- tan x tan y

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Answer:

11 + m > -23

Step-by-step explanation:

Answer:

m > -34

Step-by-step explanation:

1 - Translate words to math

The sum of 11 and m

11 + m

is greater than -23

> -23

Therefore our inequality is;

11 + m > -23

2 - Solve it algebraicly

Although we dont use this rule here its good to know.

Unless we divide or multiply by negatives our inequality symbol stays the same. If that rule applies we flip the inequality (i.e. > to < and vice versa)

Now with that out of the way we can fully simplify our inequality as long as we know it works like an equality.

11 + m > -23

-11           -11

      m > -34

So with this in mind we know our m value is greater than all numbers greater than -34 which is written as m > -34

Hope this helps :)

Answer:

line graph i think

Step-by-step explanation:

i'm not sure, i don't even know but i tried

The line graph is best display the change over time to determine the change in the number of cars sold per month at a local car dealership.

The equation of line in point-slope form passing through the points

(x₁ , y₁) and (x₂, y₂) with slope m is defined as;

⇒ y - y₁ = m (x - x₁)

Where, m = (y₂ - y₁) / (x₂ - x₁)

We have to given that;

Kelsey is trying to determine the change in the number of cars sold per month at a local car dealership.

Now, We know that;

The line graph is best display the change over time.

Hence, The line graph is best display the change over time to determine the change in the number of cars sold per month at a local car dealership.

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Answer:

25

Step-by-step explanation:

make an equation

100+5x=225

solve for your x

5x=125

x=25

Answer:

25 classes

Step-by-step explanation:

225 - 100 = 125

125/5 = $25