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2 years ago

8-4y+(-2y)+5 solve this expression please if anyone can help me

Mathematics

1 answer:

garri49 [273]2 years ago

3 0

Answer:

−6y+13

Step-by-step explanation:

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What is the area of this quadrilateral? 2 ft 3 ft 8 ft 8 ft 3 ft 2 ft

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Check the picture below.

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1 year ago

Can someone please help me with this? I don’t understand what is given.

a_sh-v [17]

$\bf BC=2BA\\ BE = 2BD \end{cases} \cfrac{BC}{BE}=\cfrac{~~\begin{matrix} 2 \\[-0.7em]\cline{1-1}\\[-5pt]\end{matrix}~~BA}{~~\begin{matrix} 2 \\[-0.7em]\cline{1-1}\\[-5pt]\end{matrix}~~BD}\implies \cfrac{BC}{BE}=\cfrac{BA}{BD}\impliedby \begin{array}{llll} \textit{equal ratio of sides}\\ \textit{similar triangles} \end{array}$

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3 years ago

What is 6.9 times 10^-2 in standard form? thanks :)

poizon [28]

Answer:

0.069

Step-by-step explanation:

6.9 ×10^-2

69/1000

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2 years ago

Proper angle for a ladder is about 75° from the ground. Suppose you have a 10 foot ladder. How far from the house should you pla

Alja [10]

Answer:

The base of the ladder is 2.58 m.

Step-by-step explanation:

Given that,

The angle of elevation for a ladder from the ground is 75°.

The length of a ladder, H = 10 foot

We need to find the distance from the house should you place the base of the latter. Let the base of the ladder is b. Using trigonometry,

$\cos\theta=\dfrac{B}{H}\\\\B=H\times \cos\theta\\\\B=10\times \cos(75)\\\\B=2.58\ m$

So, the base of the ladder is 2.58 m.

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2 years ago

Find out the cylinders volume whose height is 3 cm and radius 5cm

Studentka2010 [4]

Volume = πr²h

Volume = π(5)²(3)

Volume = 75π = 235.62 cm³ (nearest hundredth)

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Answer: Volume = 235.62 cm³.
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8 0

3 years ago

Read 2 more answers