2 years ago

3.42

Mathematics

1 answer:

taurus [48]2 years ago

7 0

Answer:

105

Step-by-step explanation:

You might be interested in

Need help, please<br> will give brainly

jeka57 [31]

Answer:

it's J

Step-by-step explanation

kkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkk mark me brainkiesrt plssss

4 0

2 years ago

Read 2 more answers

Which polynomial is in standard form

sukhopar [10]

Answer:

The third one

not sure bu i am working on this to so might be right

7 0

3 years ago

A rectangle has an area of 19.38 cm2. When both the length and width of the rectangle are increased by 1.50 cm, the area of the

Lostsunrise [7]

Answer: $5.7\ cm$

Step-by-step explanation:

Given

Rectangle has an area of $19.38\ cm^2$

Suppose rectangle length and width are $l$ and $w$

If each side is increased by $1.50\ cm$

Area becomes $A_2=35.28\ cm^2$

We can write

$\Rightarrow lw=19.38\quad \ldots(i)\\\\\Rightarrow (l+1.5)(w+1.5)=35.28\\\Rightarrow lw+1.5(l+w)+1.5^2=35.28\\\text{use (i) for}\ lw\\\Rightarrow 19.38+1.5(l+w)=35.28-2.25\\\Rightarrow l+w=9.1\quad \ldots(ii)$

Substitute the value of width from (ii) in equation (i)

$\Rightarrow l(9.1-l)=19.38\\\Rightarrow l^2-9.1l+19.38=0\\\\\Rightarrow l=\dfrac{9.1\pm\sqrt{(-9.1)^2-4(1)(19.38)}}{2\times 1}\\\\\Rightarrow l=\dfrac{9.1\pm\sqrt{5.29}}{2}\\\\\Rightarrow l=\dfrac{9.1\pm2.3}{2}\\\\\Rightarrow l=3.4,\ 5.7$

Width corresponding to these lengths

$w=5.7,\ 3.4$

Therfore, we can write the length of the longer side is $5.7\ cm$

8 0

3 years ago

Mike has a collection of 140 canada stamps ,284 mexico stamps and 775 united states stamps about how many united states and cana

Doss [256]

Answer:

915 stamps

Step-by-step explanation:

140 + 775 = 915

4 0

2 years ago

Help?????????????????

Law Incorporation [45]

Answer:

54 lbs.

Step-by-step explanation:

7 x 6 = 42

3 x 4 = 12

42+12=54

3 0

2 years ago