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2 years ago

Which equation is equivalent to 4x+3 – 647 I don’t know how to do it

Mathematics

2 answers:

german2 years ago

8 0

Answer:3.54

Step-by-step explanation:

Ierofanga [76]2 years ago

4 0

The answer will be 3.34

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The area A of a triangle with base b and height h is given by A = = bh. Find the area when b = 18 m (meters) and h = 30 m.

Pie

Answer:

$Area = 270m^2$

Step-by-step explanation:

Given

$A = \frac{1}{2}bh$

$b = 18m$

$h = 30m$

Required

Solve for A

Simply substitute 18 for b and 30 for h

$A = \frac{1}{2}bh$

$A = \frac{1}{2} * 18 * 30$

$A = 270$

Hence:

The area is

$Area = 270m^2$

6 0

2 years ago

Which angle has a sine of -1/2 and a cosine of -√3/2

Sergeeva-Olga [200]

$\sin x=-\dfrac{1}{2} < 0\\\\\cos x=-\dfrac{\sqrt3}{2} < 0\\\\therefore\ x\in(180^o;\ 270^o)$

$\text{We know:}\ \tan x=\dfrac{\sin x}{\cos x}\\\\\text{therefore:}\ \tan x=\dfrac{-\frac{1}{2}}{-\frac{\sqrt3}{2}}=\dfrac{1}{2}\cdot\dfrac{2}{\sqrt3}=\dfrac{1}{\sqrt3}\cdot\dfrac{\sqrt3}{\sqrt3}=\dfrac{\sqrt3}{3}$

$\tan x=\dfrac{\sqrt3}{3}\Rightarrow x=30^o+180^o\cdot k;\ k\in\mathbb{Z}$

$x\in(180^o;\ 270^o)\ therefore\ \boxed{x=30^o+180^o=210^o}$

8 0

2 years ago

1. An outdoor art is a metal cube with edge length 39 feet. What is the volume of the cube in feet? In cubic yard? ( Can someone

Law Incorporation [45]

The volume of a cube is just the side length cubed...

V=s^3 in this case:

V=39^3=59319 ft^3

and in cubic yards it is:

59319 ft^3*(yd^3/27 ft^3)=2197 yd^3

5 0

2 years ago

Kayla is having a neighbor watch her dog while she is gone for the week she decides to take 7/8 of a pound of dog food and put i

777dan777 [17]

Answer:

1/ 8 pounds of dog food

Step-by-step explanation:

Given that:

7/8 pounds of dog food shared equally into 7 containers ;

Number of dog food in each container will be :

Total dog food / Number of containers

(7/8) ÷ 7

(7 /8) * 1/ 7

7 / 56

= 1/8 pounds of dog food

4 0

2 years ago

Can someone please help me with this asap

Vikentia [17]

Add 5 to both sides The Addition Property of Equality

8 0

2 years ago