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Lemur [1.5K]
2 years ago
12

Find the rate of change for the situation. You run 3 miles in one hour and 6 miles in two hours

Mathematics
1 answer:
Harman [31]2 years ago
8 0
3x1=3
6x2=12
12+3=15
the anser is 15
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A television newscaster from a 24-hour news station wants to estimate the number of hours per day its viewers watch
topjm [15]

Answer:

This isn't the best worded question but from what I understand a larger sample size decreases the margin of error. If he would like a more accurate answer a larger sample size of the viewers will give more accurate answers.

Step-by-step explanation:

4 0
2 years ago
The figure shows part of the concrete slab which is used to make drains and its cross-section. it is made up of a cuboid of dime
Arlecino [84]

(i) The area of the cross section ABCDEFG is 1771.6cm³

(ii) The volume of the concrete lab is 212592 cm³

(iii) the total surface area of the concrete slab is 30284 cm²

(iv) The mass of the concrete slab is 40746.8 kg/m³.

Given, dimensions are 120 cm by 60 cm by

40 cm.

(i) area of cross section = 40 × 60 ₋ π(60 ₋10 ₋ 10)/2 . 1/2

                                     = 1771.6 cm³

(ii) the volume of the concrete slab = 40 × 60 × 120 ₋ 1/2 π((60 ₋ 10   ₋10)/2)² . 120

= 212592 cm³

(iii) The total surface area is:

=40 × 120 × 2 ₊ 60 × 120 ₊ 1771.6 × 2 ₊ 10 × 120 × 2 ₊ 1/2 π(60 ₋ 10 ₋10) × 120

= 30284 cm²

(iv) Mass of the concrete slab given density is 2300 kg/m³

Mass = Volume × density

Mass = 17.716 m³ ×  2300

         = 40746.8 kg/m³

Hence we get the mass as 40746.8 kg/m³.

Learn more about "Mensuration" here-

brainly.com/question/26398444

#SPJ10

4 0
2 years ago
Ill mark brainlist plss help
Hatshy [7]

Answer:

\frac{3×7}{5×7}   \frac{21}{35}

5 0
2 years ago
Is (0,3) a solution to the equation y = x + 3?​
Anna11 [10]
Yes,
y=x+3
if x=0,
y=0+3
y=3
therefore (0,3) is a solution
3 0
2 years ago
Read 2 more answers
G(x)=3^x +1 and f(x)=3x+1 which values of x makes f(x) =g(x) true
fomenos

Answer:

x=1

Step-by-step explanation:

3^x +1

f(x)=3x+1

f(x) =g(x)

3x +1 =3^x +1

Subtract 1 from each side

3x = 3^x

Let x =1

3*1 = 3^1

3=3

5 0
3 years ago
Read 2 more answers
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