All categories

3 years ago

-14+6b +7-2b=1+5b what is answer?~PLEASE SHOW WORK 45 POINTS

Mathematics

2 answers:

Over [174]3 years ago

8 0

Answer:

b=-8

Step-by-step explanation:

Sorry I don't have time to show work right now and write it down but this is the answer.

Drupady [299]3 years ago

6 0

Answer:

b=8

Step-by-step explanation:

1.1 Pull out like factors :

-8 - b = -1 • (b + 8)

Solving a Single Variable Equation

2.1 Solve : -b-8 = 0

Add 8 to both sides of the equation :

-b = 8

Multiply both sides of the equation by (-1) : b = -8

You might be interested in

Does anybody know the answer?

kirill [66]

Answer:

y+48=90

y= 90-48

y= 42

Step-by-step explanation:

by using the property

sum of two opposite interior angles of triangle is equal to exterior angle

4 0

2 years ago

Which graph representative this function

nalin [4]

Answer:

in graph A the vertex is (0,0)

in graph B the vertex is (0,3)

in graph C the vertex is (0,-3)

And in graph D the vertex is (0,-1)

The axis of symmetry for all of the is 0

And i don't remember maximum and minimum sorry

8 0

3 years ago

A sector with a radius of 15 cm has a central angle measure of 8π/5 what is the area of the sector

Inessa05 [86]

Answer:

area of the sector = 360π cm²

Step-by-step explanation:

To calculate the area of the sector, we will follow the steps below;

First write down the formula for calculating the area of a sector.

If angle Ф is measured in degree, then

area of sector = Ф/360 × πr²

but if angle Ф is measured in radians, then

area of sector = 1/2 × r² × Ф

In this case the angle is measured in radiance, hence we will use the second formula

From the question given, radius = 15 cm and angle Ф = 8π/5

area of sector = 1/2 × r² × Ф

=1/2 × 15² × 8π/5

=1/2 ×225 × 8π/5

=360π cm²

area of the sector = 360π cm²

8 0

3 years ago

An isosceles triangle has a perimeter of 18 cm. Find a function that models its area A in terms of the length of its base b.

IgorLugansk [536]

So.... notice the picture below

now, we know what the "height" or "altitude" is
now, we also know the perimeter is 18cm

so, k + k + b = 18
or 2k + b = 18
thus $\bf k=\cfrac{18-b}{2}$

so... one can say that $\bf \textit{area of a triangle}=A=\cfrac{1}{2}bh\qquad 
\begin{cases}
b=b
\\\\
h=\sqrt{k^2-\left( \frac{b}{2} \right)^2}
\\\\
h=\sqrt{k^2-\frac{b^2}{4}}\\
--------------\\
k=\frac{18-b}{2}\qquad thus\\
--------------\\
h=\sqrt{\left( \frac{18-b}{2} \right)^2-\frac{b^2}{4}}
\end{cases}\\\\
-----------------------------\\\\
A=\cfrac{1}{2}\cdot b\cdot \sqrt{\left( \frac{18-b}{2} \right)^2-\frac{b^2}{4}}$

and you can simplify it if you wish.. not sure you have to

7 0

2 years ago

a parabola opening up and down has vertex (-1, 0) and passes through (-8, -49/8). Write its equation in vertex form.

Eduardwww [97]

Answer:

Step-by-step explanation:

hello :

here is an solution

5 0

3 years ago