1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
aniked [119]
3 years ago
13

Can someone help me with this?

Mathematics
1 answer:
lord [1]3 years ago
5 0

Firstly, foil 2(4z - 1) and 3(z + 2): 8z-2 = 3z+6

Next, subtract 3z on both sides: 5z-2=6

Next, add 2 on both sides: 5z=8

Lastly, divide both sides by 5, and your answer will be z=\frac{8}{5}=1.6

You might be interested in
Eber bought a new pair of baseball cleats for $64.95. The sales
saw5 [17]

Answer:

$68.52

Step-by-step explanation:

$3.57 Is the tax he pays

3 0
3 years ago
Read 2 more answers
Jason considered two similar televisions at a local electronics store. The generic version was based off the brand name and was
slavikrds [6]

Keywords:

<em>Variables, televisions, generic version, TV brand, dimensions </em>

For this case we have two televisions, one generic version and one brand. We know that the generic version represents \frac {2} {3}the size of the brand. We must define two variables that represent the dimensions of the brand TV, so we have:

  • x: Brand TV length
  • y: Brand TV width

Dimensions of the generic TV:

Length = 12\\Width = 24

So:

\frac {2} {3} x = 12

\frac {2} {3} y = 24

By clearing the variables we have:

x = 12 \frac {3} {2} = 18\\y = 24 \frac {3} {2} = 36

Thus, the dimensions of the brand TV are 18 inches by 36 inches

Answer:

 The dimensions of the brand TV are 18 inches by 36 inches

3 0
2 years ago
Read 2 more answers
Please help me on this question
s2008m [1.1K]
It’s d 30% I believe
4 0
3 years ago
PLZ HELP THIS IS HARD I WILL FIVE BRAINLIEST
bagirrra123 [75]

Answer:

2\frac{1}{3}\: ft

Step-By-Step Explanation:

Height\: of \:sail = 1\frac{1}{6}\:  ft = \frac{7}{6}\:  ft\\Base\: of \:sail = 4\:  ft \\Area\: of \:sail =\frac{1}{2} \times base \times height\\=\frac{1}{2} \times \frac{7}{6} \times 4\\= \frac{7}{6} \times 2\\=\frac{7}{3}\\=2\frac{1}{3}\: ft

6 0
2 years ago
A projectile is fired from ground level with an initial speed of 550 m/sec and an angle of elevation of 30 degrees. Use that the
Nana76 [90]

Answer:

x (max) = 26760 m

y (max)  = 3859  meters

V = 549.5  m/sec

Step-by-step explanation:

Equations to describe the projectile shot movement are:

a(x)  =  0     V(x)  =  V(₀) *cos α                  x  =  V(₀) *cos α  * t

a(y)  = -g     V(y)  =  V(₀) * sin α  - g*t         y  =   V(₀) * sin α *t  - (1/2)*g*t²

a ) What is the range of the projectile.   α  =  30°

then  sin 30° = 1/2     cos  30° = √3 /2   and     tan 30° = 1/√3

x  maximum occurs when in the equation of trajectory  we make  y  = 0

Then

y  =  x*tan α  -  g*x / 2*V(₀)²*cos²  α

x*tan α  =  g*x /  2* V(₀)²*cos²  α

By subtitution

1/√3    =   9.8* x(max)  / 2* (550)²*0.75

(1/√3) * 453750 / 9.8  = x (max)

x (max) = 453750 / 16.95   meters

x (max) = 26760 m

The maximum height is when V(y) = 0

We compute t in that condition

V(y)  =  0  =  V(₀) * sin α - g*t

t  =   V(₀) * sin α / g       ⇒   t  =  550* (1/2) / 9.8

t  =  28.06 sec

Then  h (max)  =   y(max)  =  V(₀) sin α * t  - 1/2 g* t²

y (max)  =  550* (1/2)*28.06 - (1/2)* 9.8 * (28.06)²

y (max)  =  7717  -  3858  

y (max)  = 3859  meters

What is the speed when the projectile hits the ground

V  =  V(x)  + V (y)    and   t  =  2* 28.06         t  =  56.12 sec

mod V  =√ V(x)²  + V(y)²

V(x)  =  V(₀) cos α    =  550 * √3/2

V(x)  = 475.5  m/sec       V(x)²   =  226338 m²/sec²

V(y) =  550*1/2   -  9.8* 56.12     ⇒  V(y) = 275  -  549.98

V(y) =  - 274.98          V(y) ²   =  

V =  √ 226338 + 75614     ⇒  V = 549.5  m/sec

7 0
3 years ago
Other questions:
  • Max was on vacation twice as long is Jared and half as long as Wesley. The boys were on vacation a total of three weeks. How man
    10·1 answer
  • What is 2/3 divided by 9?
    15·1 answer
  • How many grams are in 2.34ml????<br> 2,340 g<br> 234 g<br> .00234 g<br> .0234 g
    6·1 answer
  • Please actually help because my anxiety sucks. "Joe is seven years younger than Bill. The sum of their ages is less than 49. At
    6·1 answer
  • URGENT!!<br><br> These triangles are similar looking at the angles.<br><br> True or false
    10·2 answers
  • The perimeter of a rectangle is 42 inches. If the width of the rectangle is 8 inches, what is the length?
    5·2 answers
  • A circular pool has a radius of 10 feet. what is the area of the surface if the water? use 3.1r as pi
    9·1 answer
  • Solve the equation sin38=x/10
    6·2 answers
  • Whats the volume of the cone?<br> use the fórmula V=1/3πr^2h.
    12·1 answer
  • A wire makes a 70 degrees angle with the ground and is attached to the top of a 50 ft. antenna. How long is the wire?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!