Can anyone answer this for me ?

Answer:

√9 = ±3

Step-by-step explanation:

... Because 3 × 3 = 9 and (-3) × (-3) = 9

However, it is agreed universally that we take the so-called “positive square root”. That is, we accept that the only answer is 3. In contrast, when we have (x^2) =9, where x is a variable, we don't know whether x is positive or negative so we cannot rule out the possibility that x is negative.

Square root means a number that produces a specified quantity when multiplied by itself.

Answer:

± 3

Step-by-step explanation:

[tex]\sqrt{9}[/tex] = ± 3

That is + 3 or - 3

Since 3 × 3 = 9 and - 3 × - 3 = 9

Answer:

p = $200

HINT: 10% of anything is just when you move the decimal over one to the left ;)

Answer:

4 / 5

Step-by-step explanation:

The ratio of wins to games is,

Wins : Games

= 24 : 30

= 24 / 30

= 4 / 5

Answer:

19% is [ 0-9⅓] couse 1-3 is not the same

Step-by-step explanation:

i hope thats will help

Answer:

[tex] \large{ \tt{AC = AB + AC}}[/tex]

[tex] \longrightarrow \large \tt \: 20 = x + 3x[/tex]

[tex] \longrightarrow \large \tt \: 20 = 4x[/tex]

[tex] \longrightarrow \large \tt \: \frac{20}{4} = x[/tex]

[tex] \longrightarrow \large \boxed{\tt \: x = 5}[/tex]

Hope this helps! :)

(2 + x)(3 - x)

To factorise a quadratic we first need to think of factors of the number term (The 6).

Factors of 6 are 1 & 6 and 2 & 3.

What combination of addition or subtraction of these factor pairs will produce the second number (which is positive 1x)

3 minus 2 will give us 1, so we will use this pair

Throw up your brackets with the x's and the number pair we chose

(x  2) (x  3)

We chose 3 minus 2

So in our brackets we will put positive 3, negative 2

(x - 2) (x + 3)

Answer:

(4, 1), (6, 2), (5, -7)

Step-by-step explanation:

Answer:

0.4 cups per cup of broth

Step-by-step explanation:

14 cups of water/35 cups of broth

This is the same as 14 divided by 35

14 divided by 35 is 0.4

Answer:

Step-by-step explanation:

Use ratios to solve:

Find the value of x:

The length of the building on the scale drawing for the given context is obtained as: 16 cm.

For a particular scale drawing, it is already specified that all the measurements' some constant scaled version will be taken. For example, let the scale be K feet to s inches.

Then it means

[tex]\rm 1\: ft : \dfrac{s}{k}\: in.[/tex]

All feet measurements will then be multiplied by s/k to get the drawing's corresponding lengths.

For the given case, The height of the building 125 meters was drawn as 25 cm in the scale drawing.

That means:

[tex]\rm 125 \: m : 25 \: cm\\\\1 \: m : \dfrac{25}{125} \: cm\\\\1 \: m :\dfrac{1}{5} \: \rm cm[/tex]

Since the length of the building in reality is 80 meters.

Thus, in scale drawing, it would become:

[tex]\rm 80 \: m = 80 \times 1 \: m : 80 \times \dfrac{1}{5} \: cm = 16 \: \rm cm[/tex]

Thus, The length of the building on the scale drawing for the given context is obtained as being of 16 cm.

Learn more about scale drawing here:

https://brainly.com/question/14671380

Answer:

Step-by-step explanation:

The diagonal is the hypotenuse of the triangle with sides of 20.8 cm and 30.6 cm.

Find the length of the diagonal using Pythagorean:

Convert the length to inches:

Answer:

37 cm = 14.57 in

Step-by-step explanation:

A rectangle is a 4-sided shape with 2 pairs of congruent, parallel sides (width and length).

All interior angles of a rectangle are 90°.

The diagonal of a rectangle forms 2 congruent right triangles.  

Given:

Pythagoras Theorem

  [tex]a^2+b^2=c^2[/tex]

where:

Therefore:

Substitute the given values into the formula and solve for c:

[tex]\implies 20.8^2+30.6^=c^2[/tex]

[tex]\implies c^2=1369[/tex]

[tex]\implies c=\sqrt{1369}[/tex]

[tex]\implies c=37\:\:\sf cm[/tex]

Therefore, the length of the diagonal of the rectangle is 37 cm.

Conversion

1 inch ≈ 2.54 cm

To convert the measure of the diagonal to inches, divide 37 cm by 2.54:

[tex]\implies \dfrac{37}{2.54}=14.57 \sf \:in\:\:(2 \: d.p.)[/tex]

Answer:

Step-by-step explanation:

(t-3)^5 is the same as (t + (-3))^5

First:  t starts at the highest power and goes down and (-3) starts at the lowest power and goes up

Second: from the Pascal triangles take the coefficients  1  5  10  10  5  1

[tex]1*t^{5} (-3)^{0} + 5*t^{4} (-3)^{1} +10*t^{3} (-3)^{2} +10*t^{2} (-3)^{3} +5*t^{1} (-3)^{4} +1*t^{0} (-3)^{5}[/tex]

Anything to power 0 is equal to 1

Negative number to an odd power is negative, to a even power is positive

[tex]t^{5} -15t^{4} +90t^{3} -270t^{2} +405t -243[/tex]

Answer:

5 good luck

Step-by-step explanation:

5 is the answer and I can't draw factor trees on a keyboard so yeah

Answer:

50%

Step-by-step explanation:

% of 70,000 = 35,000

35,000/70,000 = 0.5

0.5*100 = 50

50%

Answer:

True is the most reasonable than False.

Step-by-step explanation:

If we go by "logic", we know that radius and anything that tells you how long, how far, how tall, etc; the value must always be positive.

The area of circle is expressed as:

[tex] \displaystyle \large{A = \pi {r}^{2} }[/tex]

Where r = radius

Since we know that radius cannot be negative going with logic and real basic geometry, the only radius that satisfies A = 9π is r = 3.

[tex] \displaystyle \large{A = \pi {3}^{2} } \\ \displaystyle \large{A = 9\pi }[/tex]

Now if we do not go by logic of real basic geometry, such as length being negative and all.

Since A = 9π, substitute A = 9π in.

[tex] \displaystyle \large{9\pi = \pi {r}^{2} }[/tex]

Divide both sides by π.

[tex] \displaystyle \large{ \frac{9\pi}{\pi} = \frac{\pi {r}^{2} }{\pi} } \\ \displaystyle \large{ 9 = {r}^{2} }[/tex]

Square both sides, adding plus-minus, apply QE.

[tex] \displaystyle \large{ \pm \sqrt{9} = \sqrt{ {r}^{2} } } \\ \displaystyle \large{ \pm 3 = r}[/tex]

So r = ±3 or radius = +3 and -3

So r can be both 3 or -3 if we do not follow logic itself.

However, the answer should be true instead of false as radius being only positive sounds more logical and reasonable rather than radius being negative.

Answer:

The value of y is directly proportional to the value of x. When x = 4.25, the value of y is 2. What is the value of x when y = 8?

Step-by-step explanation:

Answer:

x = 17 when y = 8

Step-by-step explanation:

Considering the value of y,

→ 8 ÷ 2

→ 8/2 = 4

Now the value of x will be,

→ x = 4.25 × 4

→ [ x = 17 ]

Hence, the value of x is 17.

Answer:

sailors used pulleys to help raise or lower sails, and to help pull heavy objects like whale boats or cargo onto ships. Today, the U.S. Navy still uses pulleys to pull heavy objects on board, usually with the help of a crane.

Answer:

Step-by-step explanation:

400

is the answer

◦ ◦ ◦ ◦ ◦ ◦ ◦ ◦ ◦ ◦ ◦ ◦  [tex]Hello! :)[/tex]

16+24=-4(9x-10)

Use the Distributive property first:

16+24=-36x+40

Make sure that x's and other variables are on the left side of the equation. Remember to use the opposite operation!

36x-40=-16-24

Now, make sure all the numbers are on the right side of the equation:

36x=40-16-24

36x=0

x=0

All the best!

[tex]Hope.It.Helps! :)[/tex]

[tex]GraceRosalia[/tex]

1/8 + 1/4

the least common multiple of 8 and 4 is 8. Convert 1/8 and 1/4 to fractions with denominator 8.

1/8 + 2/8

Because 1/8 and 2/8 have the same denominator, add them by adding their numerators.

1+2/8

add 1 and 2 to get 3

3/8 or 0.375

Step-by-step explanation:

Hope it’s right

Answer:

Where is graph Hope you understand me

Answer:

-44.81

Step-by-step explanation:

Answer:

-44.81

Step-by-step explanation:

448.1 · (-0.1)  =  44.81       Multiply

A positive number times a negative number = negative number.  Now you

need to locate the decimal point in the first number 1 digit after the decimal and in the second number first digit after the decimal. So in your answer from right to left count two places and the decimal will be located between the 4 and 8.

Step-by-step explanation:

given :

A=5x - 10

B = 3x

C= 2x - 10

solution:

A+B+C = 180°

5x - 10 + 3x+ 2x - 10 = 180

10x -20 = 180

10x = 200

x = 20

A = 5(20)-10 = 100-10 = 90°

B = 3x = 3(20) = 60°

C = 2x-10 =2(20)-10 =40-10 = 30°

this is the right triangle and scalene triangle

Answer:

For each part, find how many numbers have the stated characteristic, then divide by 21.

e.g. multiples of 5:

these would be 10, 15, 20, 25, and 30

so prob (a multiple of 5 ) = 5/21

Do the others the same way

Answer:

For each part, find how many numbers have the stated characteristic, then divide by 21.

e.g. multiples of 5:

these would be 10, 15, 20, 25, and 30

so prob (a multiple of 5 ) = 5/21

Do the others the same way

Answer:

434, 100

Step-by-step explanation:

the place value beside the hundreds is under 5 so you round down

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