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oksano4ka [1.4K]
3 years ago
8

What is 2+2? Please help

Mathematics
2 answers:
Alisiya [41]3 years ago
7 0

Answer: 2+2=4, hope this helps you

laiz [17]3 years ago
5 0

Answer:

The answer is 4

Step-by-step explanation:

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It seems logical that restaurant chains with more units (restaurants) would have greater sales. Ca 5 n we predict sales by measu
svetoff [14.1K]

Answer:

Step-by-step explanation:

Hello!

A regression model was estimated in order to test if the number of units of a restaurant chain affecta the sales of said restaurant chains.

The estimated model is:

Y= a + bX

Where

Y: is the sales of a restaurant chain

X: number of units of a restaurant chain

Looking at the computed data, the estimated coefficients are:

a= 4.633131413

b= 0.439724072

The correct regression equation to predict Sales based on Units, according to this analysis, is..

Y= 4.63 + 0.44X

I hope it helps!

6 0
4 years ago
The perimeter of a triangle is 170 feet and the sides are in the ratio of 25:14:12. Find the area of the triangle.
Viktor [21]
Let
x,y, and z the long sides of the triangle 

we know that

x+y+z=170 ft------> equation 1
x/y=25/14----> y=14x/25------> equation 2
y/z=14/12-----> equation 3
x/z=25/12----> z=12x/25------> equation 4

substitute equation 2 and equation 4 in equation 1
x+[14x/25]+[12x/25]=170------> multiply by 25 both sides
25x+14x+12x=4250
51x=4250
x=4250/51
x=250/3
y=14x/25------> y=(250/3)*(14/25)----> y=140/3
z=12y/14-----> (140/3)*12/14----> z=40

Using Heron's formula,
Area of the triangle = √s (s-a) (s-b) (s-c)
where s is the semiperimeter
s=170/2-----> s=85 ft
Area=√85*[85-250/3]*[85-140/3]*[85-40]
Area=9.22*[1.67]*[38.33]*[45]------> Area=26558.21 ft²

the answer is
26558.21 ft²
6 0
4 years ago
Hello good morning!! Anyone watch anime? My favorite is yu yu hakusho or one piece
topjm [15]

Answer:

Good Morning my favorite is Attack on Titan.

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
A triangle that contains angles of 27 degrees, 90 degrees, and 63 degrees is a __ triangle?
Fudgin [204]

Answer:

yes, this is a triangle.  It is a right triangle

Step-by-step explanation:

The three angles of a triangle add to 180 degrees

27+90+63 = 180

180=180

This is true so it is a triangle.

Because one of the angles is 90 degrees, it is a special type of triangle called a right triangle.

6 0
4 years ago
Read 2 more answers
What are the answers to these questions
Semenov [28]

Answer:

135°

Step-by-step explanation:

You want QRT. So if you look at it you have a straight line, which equals 180°. you already have an angle at 45° so all you do is 180-45 and that equals 135°

5 0
4 years ago
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