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Norma-Jean [14]
3 years ago
13

Can someone help me plseawe

Mathematics
2 answers:
Tems11 [23]3 years ago
7 0
Here’s is your answer

Georgia [21]3 years ago
3 0

18 meters by 14 meters

Step-by-step explanation:

18 meters by 14 meters

Area of rectangle is base times height (AKA length times width or however you wish to call the dimensions).

This question is a system of equations question. We can make two equations. We know that every rectangle must have 2 "lengths" and 2 "widths" (4 sides in a rectangle). Since Maria only has 64 meters of fencing, we get the equation:

2L+2W = 64

Now we know the area enclosed must be 252 so we have:

L* W = 252

Rewriting the second equation we get:

Plug this into first equation to get:

(multiply everything by L)

Solving the quadratic tells us L can be 18 or 14. Let's consider if L is 18 first by plugging 18 back into the second equation to get 18 * W = 252 which gives us W = 14. If we do the same for when L = 14, we get that W = 18.

Now you might wonder why we have 2 possible combinations, that's because in reality, it doesn't matter which one we label as length (L) or width (W).

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What edge is skew to edge FG?
snow_tiger [21]
The edge represented by EA is the edge skewed to edge FG. Skew lines are non-intersecting lines in space. These lines are neither parallel nor they form right angles.
7 0
3 years ago
For the trinomial ​3x^2 + 22x + 7, choose two numbers whose product is 21 and whose sum is 22
Lesechka [4]

Answer:

When a trinomial is in the form of ax2 + bx + c, where a is a coefficient other than 1, look first for common factors for all three terms. Factor out the common factor first, then factor the remaining simpler trinomial. If the remaining trinomial is still of the form ax2 + bx + c, find two integers, r and s, whose sum is b and whose product is ac.

Step-by-step explanation:

7 0
3 years ago
<img src="https://tex.z-dn.net/?f=%20%5Csqrt%7B5%7D%20" id="TexFormula1" title=" \sqrt{5} " alt=" \sqrt{5} " align="absmiddle" c
WITCHER [35]

Answer:

2.2360679775

Step-by-step explanation:

6 0
4 years ago
Read 2 more answers
An element with a mass of 550 grams decays by 18.8% per minute. To the nearest minute, how long will it be until there are 60 gr
dmitriy555 [2]

Answer:  11

Step-by-step explanation:

Exponential Functions:

y=ab^x

y=ab  

x

 

a=\text{starting value = }550

a=starting value = 550

r=\text{rate = }18.8\% = 0.188

r=rate = 18.8%=0.188

\text{Exponential Decay:}

Exponential Decay:

b=1-r=1-0.188=0.812

b=1−r=1−0.188=0.812

\text{Write Exponential Function:}

Write Exponential Function:

y=550(0.812)^x

y=550(0.812)  

x

 

Put it all together

\text{Plug in y-value:}

Plug in y-value:

60=550(0.812)^x

60=550(0.812)  

x

 

\frac{60}{550}=\frac{550(0.812)^x}{550}

550

60

​  

=  

550

550(0.812)  

x

 

​  

 

Divide both sides by 550

0.109091=0.812^x

0.109091=0.812  

x

 

\log 0.109091=\log 0.812^x

log0.109091=log0.812  

x

 

Take the log of both sides

\log 0.109091=x\log 0.812

log0.109091=xlog0.812

use power rule to bring x to the front

\frac{\log 0.109091}{\log 0.812}=\frac{x\log 0.812}{\log 0.812}

log0.812

log0.109091

​  

=  

log0.812

xlog0.812

​  

 

Divide both sides by log(0.812)

10.638757=x

10.638757=x

x\approx 11

x≈11

5 0
4 years ago
10*(80+5)6-1
Nesterboy [21]
Parenthesis
Exponent
Multiply
Divide
Add
Subtract
First Parenthesis
So we have 80+5=85.
Now let's rewrite the problem. 10*85*6-1. 
I put the * sign because when you have a number like this: (10+5)1 It means you will subtract it by the number outside of the parenthesis. Now we need to move onto multiplication because there are no exponents so we skip that. 
Lets multiply from left to right.
So we have 10*85*6-1 so lets start with 10*85=850
Now we have
850*6-1 So let's do 850*6=5100
Now 5100-1=5099
So your answer is 5099

6 0
3 years ago
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