heyy! i’ll give brainliest please help.

Answer:

1. is 4

Step-by-step explanation:

im not sure about 2 im sorry

Answer:

y = (x - 2)² - 9

Step-by-step explanation:

Using the method of completing the square

add/ subtract ( half the coefficient of the x- term)² to x² - 4x

y = x² + 2(- 2)x + 4 - 4 - 5

y = (x - 2)² - 9

Answer:

[tex]x=44.5ft[/tex]

Step-by-step explanation:

From the question we are told that:

Height [tex]h=42ft[/tex]

Angle of depression [tex]\theta=27\textdegree[/tex]

Angle of Elevation [tex]\alpha=23 \textdegree[/tex]

Generally the equation for the vertical distance between Emery's distance x and the bottom of the building  is mathematically given by

Since the angle of depression and elevation are given as

27 and 23 respectively

Therefore

Emery's view of the 42 ft building is

[tex]\gamma=23+27[/tex]

[tex]\gamma=50 \textdegree[/tex]

Therefore Emery's distance x to the base of the building h' is

[tex]h'=\frac{27}{50}*42[/tex]

[tex]h'=22.68ft[/tex]

Generally the Trigonometric equation for Emery's distance x is mathematically given by

[tex]x=\frac{h'}{tan\theta}[/tex]

[tex]x=\frac{22.68}{tan 27}[/tex]

[tex]x=44.5ft[/tex]

Answer:

The first answer is correct I believe

Step-by-step explanation:

Step-by-step explanation:

x²+3x-10 =

(x+5)(x-2)

______

Answer:

none, n = 6

Step-by-step explanation:

3n + 4n = 42

7n = 42

n = 6

Answer:

3n+4n=42

7n=42

n=6

I'd say none of the Above

Answer: 6

Step-by-step explanation:

Since Pam has 4 yards of fabric and she needs 2/3 yards of fabric for each curtain, the number of curtains that Pam can make with the fabric she has will be the total yards of fabric that she has divided by the fabric needs for each curtain. This will be:

= 4 ÷ ⅔

= 4 × 3/2

= 6

Therefore, she will make 6 curtains

its was 101.5 try it that's the answer

Answer:

2

Step-by-step explanation:

Currently, Peter has run a total distance of [tex]400\cdot 23 =9200\:\text{m}[/tex]. His goal is 10 km, as stated in the problem, which equates to 10,000 meters. Thus he will need to run [tex]10,000-9,200=800[/tex] more meters to achieve his goal. Since the track is 400 meters, he needs to run around the track [tex]\frac{800}{400}=\boxed{2}[/tex] more times to achieve his goal.

Answer:

rfgcc ft v crytrcvrcvhtfvyrfftv ffg

Step-by-step explanation:

tgfgghcg gn v v

Answer:

c = 8.6

Step-by-step explanation:

a² + b² = c²

The length in x is 7

The rise in y is 5

7² + 5² = c²

49 + 25 = c²

74 = c²

Take the square root of both sides

c = 8.602325267

Rounded

c = 8.6

Answer:

B. K = 5

Step-by-step explanation:

Answer:

Coefficient

Step-by-step explanation:

Answer:

c bc it describsj7jndifkrk shdhitm

Answer:

Second option: 5E 10 = 5*10^(10) galaxies.

Step-by-step explanation:

The exponential notation is used as:

AE N

This is equal to:

A*10^(N)

And we need to add N zeros to the right of A.

While if we had:

AE - N

A*10^(-N)

We need to add N - 1 zeros at the left of A.

Now we have the number:

50,000,000,000

Let's count the number of zeros at the right of the 5, we have 10 zeros.

Then we would write this as:

5*10^(10)

OR

5E 10

Then the correct option is the second one.

Answer:

2. 5E10

Step-by-step explanation:

Answer:

A, B, and D

Step-by-step explanation:

A, B, and D

Answer:

m²+m²+m²+m²

m⁸

4m²

Step-by-step explanation:

The equation is basically asking what is the same as m² times 4

Answer:

x/6   = 3/2

Step-by-step explanation:

Step-by-step explanation:

1:4=.25 or 25%

so 12/47=.25 or 25%

24/120=.2 or 20%

that ratio does not match the height ratio

Sarah's scale is reasonable.

A scale drawing is a smaller diagram in terms of dimensions of an original image / building / object. The scale drawing is usually reduced at a constant dimension.

The first step is to determine the how larger the paper is in terms of the painting.

48 / 12 = 4

120 / 24 = 5

This makes her scale of 1 in to 4 in reasonable.

To learn more about scale drawings, please check: https://brainly.com/question/26388230

9514 1404 393

Answer:

  7 square inches

Step-by-step explanation:

We take the "3 in" dimension at the left to be the length of the line segment below the 1" square, so the height of the right triangle is 3+1 = 4 in.

The triangle area is ...

  A = 1/2bh

  A = 1/2(3 in)(4 in) = 6 in²

The square area is ...

  A = s²

  A = (1 in)² = 1 in²

Then the total area of the figure is ...

  1 in² + 6 in² = 7 in²

Answer:

3

Step-by-step explanation:

Answer: 54°

Step-by-step explanation:

We can see that this triangle is a right triangle (look at the little square in the triangle's corner-- that tells us that it's a right angle). A right angle is 90°

A triangle always has 180° in total.

So, we can add 90° and 36° and subtract the sum from 180°

180° - (90° + 36°) = 180° - 126° = 54°

Answer:

x = 54

Step-by-step explanation:

One of the properties for any triangle is that the sum of angles in the triangle will always equal 180 degrees. As one can see, one of the angles is (90) degrees, this is indicated by the box around the angle. It is given that one of the other angles is (36) degrees. One can call the unknown angle (x) and form an equation. Substitute in the given values and solve for (x).

(90) + (36) + (x) = 180

Simplify,

126 + x = 180

Inverse operations,

126 + x = 180

-126       -126

x = 54

Answer:

$80.73

Step-by-step explanation:

You add $65 and $5.20, which gives you $70.20. Then you divide $70.20 by .15 which gets you $10.53. Then you add $70.20 and $10.53 which gives you the total, $80.73

Answer:

$10.53

Step-by-step explanation:

i did the test

Answer:

78.5 cm^2

Step-by-step explanation:

the circle's diameter is 10cm --> its radius is 5cm

the area of the circle is 5^2 x 3.14 = 78.5cm^2

The area of circle is [tex]25\pi[/tex] square units.

What is the formula for area of circle?

The area of a circle is given by [tex]\pi r^{2}[/tex] where r is the radius of the circle.

The given circle is inscribed in a square. so, the side length of the square will be the diameter d of the circle.

So, d=10.

Divide diameter d by 2 to get the radius of the circle.

[tex]r=\frac{10}{2}[/tex]

So, r=5.

Substitute 5 for r into the formula of area of circle.

[tex]\pi \cdot5^{2}=25 \pi[/tex]

Therefore, the area of circle is [tex]25\pi[/tex] square units.

Learn more:https://brainly.in/question/25490087

#SPJ2

Answer:

Step-by-step explanation

Answer:

1. x = 0

12. x = 3

13. x = 0

14.