Solve the equation below for x.
4(2x +8) - 3x = 47
1.
X= 13
2.
X= 2
3.
X= 3
4.
X= 7.8

Answer:

No, 16i^2+8i+15

Step-by-step explanation:

No, she did not square it properly.

(a+b)^2=a^2+2ab+b^2

So in this case, a=3, and b=4i

(3+4i)^2

= 3^2+2(3*4i)+(4i)^2

=9+6+8i+16i^2

=15+8i+16i^2

= 16i^2+8i+15

Answer:

the second table

Step-by-step explanation:

if you plot all the points on a graph, the second function is the only one with a linear function. a linear function is a straight line.

Chord PY is congruent to Chord NL of a circle with center 0. Option A is correct.

Given,
A circle with center o is shown with two chords equidistant from the center which is 3 units.

The circle is the locus of a point whose distance from a fixed point is constant i.e center (h, k). The equation of the circle is given by

(x - h)² + (y - k)² = r²,
where h, k is the coordinate of the circle's center on the coordinate plane and r is the circle's radius.

Since the property of the circle describes that chords that are equidistant from the center of the circle are equal in length,

In the given question both the given chords are equidistant from the center of the circle i.e 3 units, so the Chord PY is congruent to Chord Nl.

Thus, Chord PY is congruent to Chord NL of the circle with center o. Option A is correct.

Learn more about circle here:

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Answer:

1012

Step-by-step explanation:

She eats 1012 because:

If she eats 45 in 2 minutes then she eats 22.5 in 1 minute.

This is because 45 ÷ 2 = 22.5

Sarah eats blueberries for 45 minutes so we multiply 22.5 by 45

22.5 × 45 = 1012.5

She ate 1012 full berries.

Look at the attached picture

Hope it will help you

Good luck on your assignment

Answer:

[tex] = 2(5x - 2y)[/tex]

Step-by-step explanation:

[tex]10x - 4y \\ = 2(5x - 2y)[/tex]

hope this helps

brainliest appreciated

good luck! have a nice day!

Answer:

H-1     H-5

T1   T-3

Answer:

the x should be 10x7-(9x6)

Step-by-step explanation:

because it should be 10x7-(4+30)

Answer:

The first line has a mistake, multiply and divide  before add and subtract

Step-by-step explanation:

10*7 - (4+5*6)

Parentheses first

10*7 - (4+5*6)

Inside the parentheses we multiply and divide first

10*7 - (4+30)

Answer:

127 1/2 feet

Step-by-step explanation:

A model lighthouse uses a scale of 1/4 inch = 5 feet.

This means that 1/4 inch on the model represents 5 feet in actual life.

The height of the model lighthouse is  6 3/8 inches i.e. 51/8 inches.

The height of the actual lighthouse is:

1/4 inch = 5 feet

51/8 inches = x

Cross-multiply:

51/8 * 5 = 1/4 * x

=> x = 51/8 * 4 * 5

x = 127 1/2 feet

The height of the actual lighthouse is 127 1/2 feet.

Answer:

A and B are not true

Step-by-step explanation:

A. 3 * 3= 9 NOT 1

B. 7-0 =7 NOT 0

C. 8*1=8

D. 0*4=0

Answer:

I think it's 5-2i

Step-by-step explanation:

=(2+3i)+(3-5i)

=2+3i+3-5i

=2+3-5i+3i

=5-2i

hope it helps

Answer:

300 km²

Step-by-step explanation:

Area of the triangle = 1/2 × base × height

Area = 1/2 × 20 × 30

Area = 300 km²

Answer:

[tex]300 {km}^{2} [/tex]

hope this helps

brainliest appreciated

good luck! have a nice day!

Answer:

50degrees

subtract 180with140and with 90 then add

Answer:

50˚ "D"

Step-by-step explanation:

All you have to do is subtract  140 by 90

Your equation should look like this: 140-90

Answer:

20 degrees

Step-by-step explanation:

Bisected means to cut or divide in half. After knowing this you should realize that the two new parts of the angle should be equal. They are both ten degrees, so to get the measure of the original angle add both of the sides together.

10+10=20

Answer:

A.) 3

Step-by-step explanation:

Let's start with the numerator:

√36/√4

√36 = ?

We know that 36 is a perfect square, or the product of one number multiplied by itself.

6 x 6 = 36

So, √36 = 6

Let's look at the denominator:

√36/√4

√4 = ?

We know that 4 is also a perfect square.

2 x 2 = 4

So, √4 = 2

Now we have the numerator: 6

And the denominator: 2

Fraction: 6/2

If we simplify this fraction, we are left with 3 because 6 divided by 2 is 3.

Therefore, the first answer is correct.

Answer:

3

Step-by-step explanation:

For the given set, the average is 13.5 years, and the standard deviation is 17.02 years.

Here we know that the ages of the bears are {5, 4, 6, 39}, then the average of these 4 values is:

[tex]A = \frac{5 + 4 + 6 + 39}{4} = 13.5[/tex]

So the average age of the bears is 13.5 years.

The standard deviation for the given set will be:

[tex]S_X = \sqrt{\frac{(5 - 13.5)^2 + (4 - 13.5)^2 + (6 - 13.5)^2 + (39 - 13.5)^2}{4 - 1} } \\\\S_X = 17.02[/tex]

The standard deviation is 17.02 years.

If you want to learn more about sets of data, you can read:

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Answer:

Everything

Step-by-step explanation:

By knowing the context, you could tell what just happened and could even predict what's going to happen.

Answer:

3:5 Is the ratio because there are five pieces of cheese.

Step-by-step explanation:

If there are 12 pieces, then you can add 4 and 3 together and get 7 and then you can take 7 from 12 and get 5 which is how many cheese pieces there are. Now you know that there are 3 slices of pepperoni and 5 pieces of cheese. Therefore the ratio is 3:5.

Answer:

41

Step-by-step explanation:

3 unit= 15

4unit = 15/3 x 4= 20

20+21=41

Answer:

The correct answer is 41.

Step-by-step explanation:

unit 3: 15

unit 4: 15/3 x 4= 20

Then add 20 and 21 together and you get 41.

Answer:

93.7 miles

Step-by-step explanation:

This problem can be represented as a right angled triangle. The distance between the final point and the starting point is the hypotenuse.

We need to find the hypotenuse. We can use Pythagoras rule:

[tex]hyp^2 = opp^2 + adj^2[/tex]

where opp = opposite side to the angle considered

adj = adjacent side to the angle considered

This implies that:

[tex]x^2 = 60^2 + 72^2\\\\x^2 = 8784\\\\x = \sqrt{8784} \\\\x = 93.7 miles[/tex]

The car is 93.7 miles far from its starting point.

Answer:

y=1x−4(ln(x))y=1x−4(ln(x)))

Step-by-step explanation:

Xmin= -10

Xmax= 10

Ymin=-10

Ymax= 10

Graph

Hope this helps.

Answer:

Step-by-step explanation:

no y-intercept

Answer:

(0,0)

Step-by-step explanation:

Using the midpoint formula, given that A is at (-1,2) and B is at (1,-2):

[tex]m=\left(\dfrac{-1+1}{2},\dfrac{2+(-2)}{2} \right)=\left(\dfrac{0}{2},\dfrac{0}{2} \right)=(0,0)[/tex]

Hope this helps!

Answer:

using midpoint formula you can see that the answer comes out to be (0,0)

Answer:

The answer is B.

Step-by-step explanation:

When Elimination method is applied, you have to eliminate one of the variables from both equations. Firstly, both equations contain 4y so you can subtract it :

[tex]7x + 4y = 39 - - - (1)[/tex]

[tex]2x + 4y = 14 - - - (2)[/tex]

[tex](1) - (2)[/tex]

[tex]7x + 4y - 2x - 4y = 39 - 14[/tex]

[tex]5x = 25[/tex]

[tex]x = 25 \div 5[/tex]

[tex]x = 5[/tex]

Next, you have to substitute x = 5 to any equations. I will choose to put in (2) :

[tex]substitute \: x = 5 \: into \: (2)[/tex]

[tex]2(5) + 4y = 14[/tex]

[tex]10 + 4y = 14[/tex]

[tex]4y = 14 - 10[/tex]

[tex]4y = 4[/tex]

[tex]y = 4 \div 4[/tex]

[tex]y = 1[/tex]

Therefore, put your answer in coordinate form :

[tex]x = 5 \\ y = 1[/tex]

[tex](5,1)[/tex]

Answer:

17

Step-by-step explanation:

Let x be the first side

x+2 is the next side ( consecutive odd number)

x+4 is the third side ( consecutive odd number)

P = x + x+2 + x+4

45 = x + x+2 + x+4

Combine like terms

45 = 3x+6

Subtract 6 from each side

45-6 = 3x+6-6

39 = 3x

Divide by 3

39/3 = 3x/3

13 =x

The longest side is

x+4

13+4 = 17

The longest side is 17

The longest side is 16.

Let the consecutive sides be y, y+1, and y+2.

The perimeter of a triangle is gotten by adding all its sides. Therefore, the perimeter will be:

y + y+1 + y+2 = 45

Collect like terms

3y = 45 - 3

3y = 42

Divide both side by 3

3y/3 = 42/3

y = 14

Therefore, the longest side will be:

y + 2 = 14 + 2 = 16

The longest side is 16.

Read related link on:

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Answer:

a no because its 0/6

b yes because there is a chance occuring

c. yes because there is a chance occuring

d.yes because there is a chance occuring

e. yes?

Step-by-step explanation:

not sure on the last one

Answer:

54m

Step-by-step explanation:

15+15+9+9+3+3

Answer:

How are the two functions f(x) = 0.7(6)x and g(x) = 0.7(6)-x related to each other? g(x) is the reflection of f(x) over the y-axis. ... The ranges of f(x) and h(x) are different from the range of g(x).

Step-by-step explanation:

IS THIS HOW YOU DO IT

Answer: left 1 down 6

Answer:

I just learned this a few months ago! Your lucky! Answer= 49! happy to help:D

Step-by-step explanation:

c Squared = 6 squared+ 1 squared

c squared= 7 squared

7 squared= 49

c = 49

Answer:

c

Step-by-step explanation:

x=0 and x= one half (1/2) is the solution of rational equation:

Option C is correct.

Step-by-step explanation:

We need to solve rational equation:  and identify extraneous solutions.

Solving:

Cross multiplying and solving:

So, values of x are x= 0 and x=1/2

Checking for extraneous solutions.

To check for extraneous solutions we will put value of x in the given rational equation and check if it satisfies the equation or not.

Putting x=0

Putting x= 1/2

Since both values satisfies the given equation so, there is no extraneous solutions.

x=0 and x= one half (1/2) is the solution of rational equation:

Option C is correct.

Answer:

c

Step-by-step explanation:

x=0 and x= one half (1/2) is the solution of rational equation:

Option C is correct.

Step-by-step explanation:

We need to solve rational equation: and identify extraneous solutions.

Solving:

Cross multiplying and solving:

So, values of x are x= 0 and x=1/2

Checking for extraneous solutions.

To check for extraneous solutions we will put value of x in the given rational equation and check if it satisfies the equation or not.

Putting x=0

Putting x= 1/2

Since both values satisfies the given equation so, there is no extraneous solutions.

x=0 and x= one half (1/2) is the solution of rational equation:

Option C is correct.