All categories

3 years ago

~Worth 15 points and brainliest❤️☮️~

Mathematics

2 answers:

gayaneshka [121]3 years ago

8 0

Answer:

then

Step-by-step explanation:

butalik [34]3 years ago

5 0

Answer:

Step-by-step explanation:

You might be interested in

2 d2 + 15d + 23 = 3<br> It’s quadratic formula

DENIUS [597]

Answer:

-15 plus or minus the square root of 65 all over 4 (All over means fraction)

4 0

3 years ago

Plalslslsllslslslslsps helpp

Nezavi [6.7K]

Answer:

1064 ft.

Step-by-step explanation:

Start by sketching out a figure to represent the situation, it should look something like this:

(See picture)

(Figure definitely not drawn to scale)

The angle marked in red measures 4.3°, then we can use the law of sines to solve for the height of the Eiffel Tower (represented as the variable x):

$\frac{sin(4.3)}{80}= \frac{sin85.7}{x}\\x=\frac{80sin85.7}{sin4.3}\\x=1063.96592818...$

Rounding gives 1064 ft.

7 0

2 years ago

A a rectangular parking lot has a length that is 15 yards greater than the width. the area of the parking lot is 450 square yard

Lelu [443]

The numbers are 30 and 15. Length is 15 and width is 30.

6 0

3 years ago

Stephanie drew this triangle how many obtuse triangle’s are the triangle have

Mice21 [21]

The triangle has no obtuse angles.

Obtuse angles are greater than 90 degrees, or are wider than a right angle. These are all acute angles in this diagram because they are all less than 90 degrees.

3 0

3 years ago

Read 2 more answers

H (t) = -t2 + t + 12 <br> Solve by using quadratic formula

Sedaia [141]

The quadratic formula is:

$x=\frac{-b+\sqrt{(b)^2-4(a)(c)}}{2a}$

and

$x=\frac{-b-\sqrt{(b)^2-4(a)(c)}}{2a}$

Let's identify our a, b, and c values:

a: -1

b: 1

c: 12

Plug in the values for a, b, and c into the equation. Let's do the first equation:

$x=\frac{-1+\sqrt{(1)^2-4(-1)(12)}}{2(-1)}$

Simplify everything in the radical:

$x=\frac{-1+\sqrt{49}}{-2}$

Simplify the radical:

$x=\frac{-1+7}{-2}$

Combine like terms:

$x=\frac{6}{-2}$

Simplify:

$x=-3$

This is one solution, now, let's solve for the other equation:

Since when simplified, everything is the same except the subtraction sign, we can skip the simplification again and change the sign to subtraction:

$x=\frac{-1-7}{-2}$

Combine like terms:

$x=\frac{-8}{-2}$

Simplify:

$x=4$

Your final answers are:

$x=-3$

$x=4$

8 0

3 years ago

Read 2 more answers