ASAP 10 POINTS IF YOU ANSWER

Mathematics

2 answers:

kiruha [24]3 years ago

5 0

Step-by-step explanation:

-18.4,-17.3,-1.4,7.8,15.8,16.2

Nana76 [90]3 years ago

4 0

Answer:

-18.4 < -17.3 < -1.4 < 7.8 < 15.8 < 16.2

Step-by-step explanation:

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4. The length of a rectangle is one more than twice the width. The area is 105 in?.

Zanzabum

9514 1404 393

Answer:

7 in

Step-by-step explanation:

For width w in inches, the length is given as 2w+1. The area is the product of length and width, so we have ...

A = LW

105 = (2w +1)w

2w^2 +w -105 = 0

To factor this, we're looking for factors of -210 that have a difference of 1.

-210 = -1(210) = -2(105) = -3(70) = -5(42) = -6(35) = -7(30) = -10(21) = -14(15)

So, the factorization is ...

(2w +15)(w -7) = 0

Solutions are values of w that make the factors zero:

w = -15/2, +7 . . . . . negative dimensions are irrelevant

The width of the rectangle is 7 inches.

7 0

2 years ago

What is 15 times 0.85?

Fofino [41]

Answer:

12.75

Step-by-step explanation:

You multiply 15.00 into 0.85

7 0

2 years ago

Please help! 30 points!

Rashid [163]

Answer: $64.2^{\circ}$

Step-by-step explanation:

According to the cosine rule

$\cos C=\dfrac{a^2+b^2-c^2}{2ab}$

Here, $a=83, b=111, c=165,\ C=180^{\circ}-\theta$

Putting values

$\Rightarrow \cos (180^{\circ}-\theta)=\dfrac{83^2+111^2-165^2}{2\times 83\times 111}\\\\\Rightarrow \cos(180^{\circ}-\theta)=\dfrac{6889+12321-27225}{18426}\\\\\Rightarrow \cos(180^{\circ}-\theta)=\dfrac{-8015}{18426}=-0.4349\\\\\Rightarrow 180^{\circ}-\theta=\cos^{-1}(-0.4349)=115.77^{\circ}\\\Rightarrow \theta=64.23\approx 64.2^{\circ}$