Solve for b.
16 = a² + b^2

Answers

Answer 1

Answer:

[tex]\sqrt{(4-a)(4+a)} =b[/tex]

Step-by-step explanation:

16 = a^2 + b^2

16 - a^2 =b^2

4^2 - a^2 = b^2

[tex]\sqrt{4^2 - a^2} =b[/tex]

[tex]\sqrt{(4-a)(4+a)} =b[/tex]


Related Questions

Which is a better estimate for the length of a raisin?

A. 1 meter b. 1 centimeter

Answers

Answer:

1 centimeter

Step-by-step explanation:

nope

Find x if 5, 9, 11, 12, 13, 14, 17 and x have a mean of 12.

Answers

Answer: 15

Step-by-step explanation: 5+9+11+12+13+14+17=81

Make an equation based on this and solve for the variable (x)

81+x/8=12

12*8=96

81+x=96

96-81=15

x=15

What is the value of this expression when a = 7 and b = -4? 1201 - 6 3 OA. -6 OB. - 31 Oc. 37 D. 6​

Answers

Answer:

OA . -6

Step-by-step explanation:

correct me if I'm wrong

Mr. vazquez determines that the area of a bathroom in his house is 25 square feet less than 1/5 of the area of the living room if the bathroom measures 35 square feet what is the area of the living room ?

Answers

Answer:200

Step-by-step explanation:

Multiply 35 by 5 to get 175. You do this because you are doing the opposite to find a larger amount. Then add 25 to get 200

ANSWER PLZZZZZZ!!!!!!!!!!!!!!!

Answers

Answer:

length=(3x-2)

Step-by-step explanation:

area of rectangle=length*breadth

3x^2 + 7x - 6=length * (x+3)

3x^2 +(9-2)x -6=length *(x+3)

3x^2+9x-2x-6=length*(x+3)

3x(x+3)-2(x+3)=length*(x+3)

(x+3)(3x-2)=length*(x+3)

(x+3)(3x-2)/(x+3)=length

(3x-2)=length

Answer:

(3x - 2)

Step-by-step explanation:

Given that the area A = length × width

A = 3x² + 7x - 6 ← factor to obtain length

Consider the factors of the product of the coefficient of the x² term and the constant term which sum to give the coefficient of the x- term

product = 3 × - 6 = - 18 and sum = + 7

The factors are + 9 and - 2

Use these factors to split the x- term

3x² + 9x - 2x - 6 ( factor the first/second and third/fourth terms )

= 3x(x + 3) - 2(x + 3) ← factor out (x + 3) from each term

= (x + 3)(3x - 2)

We know (x + 3) is the width , then (3x - 2) is the length

Find the sum.
b/ b^2+4b+4 + 9/b^2+7b+10

Answers

Answer:

11b^3+14b^2+b+9

---------------------------

         b2

Step-by-step explanation:

What are 3 equivalent ratios of 2 to 9 (fraction)? (one of them divided and one multiplied)

Answers

Answer:

Step-by-step explanation:

[tex]\frac{2}{9}=\frac{2*3}{9*3}=\frac{6}{27}\\\\\frac{2}{9}=\frac{2*4}{9*4}=\frac{8}{36}\\\\\frac{2/2}{9/2}=\frac{1}{4.5}[/tex]

?????????????????????

Answers

Answer:

[tex]\sqrt{x+6}[/tex]

Step-by-step explanation:

So, there are a few things we need to go over to graph a function,

When a number is outside of a root, it changes the y value. For example:

y=[tex]\sqrt{x}+6[/tex]

With the +6, y will always be 6 higher than normal.

If it was -6, then y will always be 6 lower than normal.

What if the number is inside the root? Well, it works a little differently.

Instead of changing the y value, it changes the x value. For example:

y=[tex]\sqrt{x+6}[/tex]

So if you put a number in for x, lets say -6, wht would you get?

You would get -6+6=0

The square root of 0 is 0, so when x=-6, y=0

Normally, x would have to equal 0 for the y value to be 0.

So basically, when we see the number isnide of the root, we can think the our x coordinate being subtracted by that number.

This makes since, because if we subtract the +6 from x:

x-(+6)= x-6, and -6 is our x coordinate.

If it was -6 at the start, this would also work:

x-(-6)= x+6. So our x coordinate would start at 6.

Now, lets look at our graph.

As we can see, the x values start at -6, and the y values starts at 0.

This eliminates A and D, since the +6 would change the y value, not the x.

Remember that x-6 would make x a postive 6.

x+6 however, would make x a negative 6.

So we need x+6 in a square root.

This eliminates B, since it has a x-6, making the x coordinate postive 6, not negative 6.

So c is our answer.

Hope this helps!

Please help this is due today!!

Answers

24 is the answer hip hop horsy

what number represents the same amount as 4 tens+0 ones

Answers

Answer: 40

4 tens= 10+10+10+10=40
and there’s no one’s so it’s just 40

hope that helped!
Y=Mx+b thanks for the pound

help me please question in the picture

Answers

Answer:

Step-by-step explanation:

that should be a triangular prism.

Sorry if I’m late but it’s triangular prism

A square is inscribed in an equilateral triangle that is inscribed in a circle.

A square is inscribed in an equilateral triangle that is inscribed in a circle. The square and circle are shaded.

Which represents the area of the shaded region?

area of the circle – area of the square – area of the triangle
area of the triangle – area of the square + area of the circle
area of the triangle + area of the square + area of the circle
area of the circle – area of the triangle + area of the square

Answers

A is square due to ots shape

The area of the shaded region is (area of the circle) - (area of the square) - (area of the triangle)

Option A is the correct answer

What is a triangle?

A triangle is a 2-D figure with three sides and three angles.

The sum of the angles is 180 degrees.

We can have an obtuse triangle, an acute triangle, or a right triangle.

We have,

The shaded region consists of the area inside the circle but outside the square, as well as the area inside the equilateral triangle but outside the square.

Now,

The area of the circle is πr²

Since the square is inscribed in the circle, the diameter of the circle is equal to the diagonal of the square.

Let's say the side length of the square is s.

By the Pythagorean theorem,

s² + s² = (diameter)²

2s² = (2r)²

s² = r²

The area of the square is s² = r².

The area of an equilateral triangle with side length s is √(3)/4 x s².

Since the side length of the square is equal to the height of the equilateral triangle, the side length of the equilateral triangle is also equal to s.

The area of the shaded region.

= (area of the circle) - (area of the square) - (area of the triangle)

Thus,

The area of the shaded region is (area of the circle) - (area of the square) - (area of the triangle)

Learn more about triangles here:

https://brainly.com/question/25950519

#SPJ7


Jada makes sparkling juice by mixing 2 cups of
sparkling water with every 6 cups of apple juice.

A. How much apple juice does Jada need if she uses 6
cups of sparkling water?

B. How much sparkling water does jada need if she uses 15 cups of apple juice.

Answers

Answer:

A=36

B= 2.5

Step-by-step explanation:

If you need 1 cup of sparkling water per 6 cups of apple juice and you use 6 cups of sparking water you do 6x6=36

15 divided by 6 = 2.5

Answer:

A - 18. B - 5

Step-by-step explanation:

So, the best thing for us to do first is find the ration between apple juice and sparkling water.

Then we can answer the questions once we know the ratio.

We know that for every 6 apple juice, we need 2 sparkling water.

This is a 6 : 2 ratio.

However, we can simplfy this further by dividing the 6 and 2 by using a number that goes into both values, such as 2:

6/2 : 2/2

=

3 : 1

So this is our ratio.

Now, the first questino asks how many apple juice is needed for 6 cups of sparkling water?

We know 3 apple juce is needed for 1 sparkling water, so to find whats needed for 6, lets multiply the 3 by 6:

3*6

=

18

So we need 18 apple juice for 6 sparkling water.

Next we need to find how much sparkling water is needed for 15 cups of apple juice.

We know that for every 3 apple juice we need 1 sparkling water.

We gace 15 apple juice.

To find how much sparkling water we need, lets divide the amount of apple juice by the ratio of apple juice. This will get us how many times more sparkling water we need:

15/3

=

5

Now that we know how many times more sparkling water we need, lets multiply the sparkling water by this:

5*1

=

5

So we need 5 sparkling water for every 15 cups of apple jiuce.

Hope this helps!

how to solve -4x+8y=-16
4x+3y=5

Answers

Answer:

X=2, y=-1

Step-by-step explanation:

-4x +8y=-16 equation 1

4x +3y=5 equation 2

     11y=-11 add two equations to eliminate x

y=-1

solve for x by inputting y value into either equation

4x+3y=5

4x+3(-1)=5

4x-3=5

4x=8

x=2

I need help

Solve the expression when X =5;3(X+2)=

Answers

[tex]\implies {\blue {\boxed {\boxed {\purple {\sf {21}}}}}}[/tex]

[tex]\large\mathfrak{{\pmb{\underline{\orange{Step-by-step\:explanation}}{\orange{:}}}}}[/tex]

[tex]3 \: ( \: x + 2 \: )[/tex]

Plugging in the value [tex]x = 5[/tex] in the above expression, we have

[tex] = 3\:( \: 5 + 2 \: )[/tex]

[tex] = 3 \: ( \: 7 \: )[/tex]

[tex] = 3 \times 7[/tex]

[tex] = 21[/tex]

Note:-

[tex]\sf\pink{PEMDAS\: rule.}[/tex]

P = Parentheses

E = Exponents

M = Multiplication

D = Division

A = Addition

S = Subtraction

[tex]\red{\large\qquad \qquad \underline{ \pmb{{ \mathbb{ \maltese \: \: Mystique35☂}}}}}[/tex]

Need help with probabilities (math) plz

Answers

Answer:

What is your question for probabilities?

A group of 35 team members needs to be divided into smaller workgroups. If each group is to contain two, three, or four people, what is the smallest number of groups possible?

Answers

Answer:

9

Step-by-step explanation:

Since we want the fewest number of groups possible, we need to maximize the number of people in each group. Since there can be a maximum of four people in each group, we can have a maximum of [tex]\left\lfloor \frac{35}{4}\right \rfloor=8[/tex] groups of four. The final three students can form the last group, hence the smallest number of groups possible is [tex]8+1=\boxed{9}[/tex]

The answer is 9
Sorry if I get it wrong

Two brothers are sharing a certain sum of money in the ratio 2/3 : 3/5, if the largest share was Gh¢500.00. How much was shared between them?​

Answers

Given:

Two brothers are sharing a certain sum of money in the ratio [tex]\dfrac{2}{3}:\dfrac{3}{5}[/tex].

The largest share was Gh¢500.00.

To find:

The total amount shared between them.

Solution:

It is given that, two brothers are sharing a certain sum of money in the ratio [tex]\dfrac{2}{3}:\dfrac{3}{5}[/tex].

First we need to make the denominators common.

[tex]Ratio=\dfrac{2\times 5}{3\times 5}:\dfrac{3\times 3}{5\times 3}[/tex]

[tex]Ratio=\dfrac{10}{15}:\dfrac{9}{15}[/tex]

[tex]Ratio=10:9[/tex]

So, the two brothers are sharing a certain sum of money in the ratio 10:9.

Let the shares of two brothers are 10x and 9x respectively. So, the larger share is 10x.

It is given that the largest share was Gh¢500.00.

[tex]10x=500[/tex]

[tex]x=\dfrac{500}{10}[/tex]

[tex]x=50[/tex]

Now, the total amount shared between them is:

[tex]Total=10x+9x[/tex]

[tex]Total=19x[/tex]

[tex]Total=19(50)[/tex]

[tex]Total=950[/tex]

Therefore, the total amount shared between them is Gh¢950.00.

John invested $30000 in the bank for 4 years. At the end of the period, he had
$42520. Calculate
a. the interest earned
b. the rate per annum at which simple interest was earned to 1 decimal place.

Answers

Answer:

Rate = 10.4%

Step-by-step explanation:

Given :

P = $30000

A = $42520

Interest earned = 42520 - 30000 = $12520

Time = 4years

Find R

     [tex]Interest = \frac{PRT}{100}[/tex]

        [tex]12520 = \frac{30000 \times R \times 4}{100}\\\\12520 = 300 \times 4 \times R\\\\12520 = 1200 \times R\\\\R = \frac{12520}{1200}\\\\R = 10.43 \%[/tex]

Round to 1 decimal place, Rate = 10.4%

I need helped really need this question to be answer!

Answers

Answer:

the answer for your question is b

A rectangular garden has a length that is modeled by the expression2X -7 and a width of 3X^2+4x. What is the area of the garden?

Answers

Answer:

A = 6x³ - 13x² - 28x

Step-by-step explanation:

Area of rectangle:

A = lw

Given:

l = 2x - 7w = 3x² + 4x

The area is:

A = (2x - 7)(3x² + 4x) =

   2x(3x² + 4x) - 7(3x² + 4x) =

   6x³ + 8x² - 21x² - 28x =

   6x³ - 13x² - 28x

Answer:

Area of rectangle = 6 x ³ - 13 x ² + 28

step by step explanation

Given That :-

Length of rectangle = 2 x - 7Width of rectangle = 3 x ²+ 4 x

To Find :-

Area of rectangle

Formula Used :-

Area of rectangle = Length × Width

Solution : -

Using Formula

Area of rectangle = Length × Width

substitute the values.

Area of rectangle = ( 2 x - 7 ) × ( 3 x ² + 4 )

= 2 x ( 3 x ² + 4 ) - 7 ( 3 x ² + 4 )

= 6 x ³ + 8 x - 21 x ² + 28

= 6 x ³ - 13 x ² + 28

A ruler cost x pence. A pen costs 10 pence more than the ruler. Write an expression, in terms of x, for the cost of a pen .

A. 10x pence
B. 10- x pence
C 10 pence
D.x + 10 pence

Answers

Answer:

D. x + 10 pence

Step-by-step explanation:

Since the pen costs 10 pence more than the ruler, we need to add 10 to x.

2. The average daily rainfall in London during April was 3.5 mm. How much rain fell during the month?​

Answers

Answer:

105mm

Step-by-step explanation:

To find the rainfall during the month of April simply multiply the number of days in April times the average daily rainfall

Number of days in April: 30

Average daily rainfall: 3.5mm

Rainfall during the month = 30 * 3.5 = 105mm

12 less than a number is equal to the product of 7 and that number. Convert into an
equation and find the number?

Answers

Answer:

EQUATION: X - 12 = 7X. SOLUTION: X = - 2.

Step-by-step explanation:

First, we do not know the number. When the number is unknown, it is a variable. I chose the variable, "X."

12 less than signals that we subtract 12. So that would be X - 12.

A product of 7 AND that number means we multiply 7 by X. That can be notated as 7X.

12 less than X is EQUAL to the product of 7 and X. So X - 12 = 7X.

To find the solution, we want to know the value of X. Move X to one side of the equation.

X - 12 = 7X

-X           -X

_________

-12     =   6X

Divide both sides by 6 to get X by itself.

X = - 2.

The picture is above I’ll mark as brainliest.

Answers

Answer:

Width = 3 m

Step-by-step explanation:

Formula for perimeter:

P = l + w + l + w

Plug in what we know:

14 = 4 + w + 4 + w

Isolate variable w (width):

14 = 8 + 2w

6 = 2w

3 = w

Check your work:

14 = 4 + 3 + 4 + 3

14 = 7 + 7

14 = 14

Correct!

(Don't forget to add units in your answer!)

Can someone help me

Answers

Step-by-step explanation:

the answer is in the above image

Answer:

[tex]-12^{2}[/tex] + 9a - 5

Step-by-step explanation:

combine like terms :

-7[tex]a^{2}[/tex] - 5[tex]a^{2}[/tex] = -12[tex]a^{2}[/tex]  

+3a - (-6a) = 9a    

-9 - (-4) = -5          

What is the midpoint of the line segment with endpoints (-1,7) and (3, -3)?

A. (1, 2)

B. (1,4)

C. (2, 4)

D. (2, 2)

Answers

The correct answer is A. (1, 2)

pleaaseee explain !!

Answers

Answer:

64

Step-by-step explanation:13+51=64

can you solve this problem please​

Answers

Answer:

k = 11

Step-by-step explanation:

Given the points are collinear then the slopes between consecutive points are equal.

Using the slope formula

m = [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]

with (x₁, y₁ ) = (5, 1) and (x₂, y₂ ) = (1, - 1)

m = [tex]\frac{-1-1}{1-5}[/tex] = [tex]\frac{-2}{-4}[/tex] = [tex]\frac{1}{2}[/tex]

Repeat with another 2 points and equate to [tex]\frac{1}{2}[/tex]

with (x₁, y₁ ) = (1, - 1) and (x₂, y₂ ) = (k, 4)

m = [tex]\frac{4+1}{k-1}[/tex] , then

[tex]\frac{5}{k-1}[/tex] = [tex]\frac{1}{2}[/tex] ( cross- multiply )

k - 1 = 10 ( add 1 to both sides )

k = 11

Answer: K=11

Explanation:

The length of a rectangle is the same as its width. If its perimeter is 32 meters, what is its area? 15points- HELP ME PLLLLLLLEEEEAAASSSEE

32 m ^2
64 m ^2
81 m ^2
16 m ^2

Answers

Answer:

64

Step-by-step explanation:

a rectangle with length and width equal is a square.

32/4 sides

equals 8 for each side.

l x w = A

8 x 8 = 64

Answer: 64 m ^2

Step-by-step explanation:

Ok well if it's length is the same as the width then we can divide the perimeter by 4 to see the length of each side

[tex]\frac{32}{4} =8[/tex]

Each side is 8m long so it's an 8x8 rectangle. Now we can find the area.

8x8=64

The area is 64 meters squared

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