3 years ago

Brad wants to buy flowers for

Mathematics

1 answer:

Elis [28]3 years ago

3 0

He wants to buy flowers for me lol

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Simplify.<br> 10x² + 11x − 6=0

Westkost [7]

Step-by-step explanation:

10x² + 11x − 6 = 0

10x² + 15x – 4x – 6 = 0

5x(2x + 3) – 2(2x + 3) = 0

(2x + 3) (5x – 2)

5 0

1 year ago

Adele bought a dress that was on sale for 20 percent off the regular price of $129.00. if a 7 percent sales tax was added to the

Verdich [7]

Answer:

original price = $129

20% discounted price = $103.2

adding 7% sales tax = $110.424

OPTION B = 110.42

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3 years ago

Compare the surface area-to-volume ratios of the moon and mars. express your answer using two significant figures.

antoniya [11.8K]

we know that

For a spherical planet of radius r, the volume V and the surface area SA is equal to

$V=\frac{4}{3} *\pi *r^{3} \\ \\ SA=4*\pi *r^{2}$

The
ratio of these two quantities may be written as

$SAV =\frac{(4*\pi*r^{2})}{(\frac{4}{3}*\pi*r^{3})} \\ \\ SAV =\frac{3}{r}$

we know

$rMoon=1,738Km\\ rMars=3,397 Km$

$\frac{SAV Moon}{SAV Mars} =\frac{3}{rMoon} *\frac{rMars}{3} \\ \\ \frac{SAV Moon}{SAV Mars} =\frac{rMars}{rMoon} \\ \\ \frac{SAV Moon}{SAV Mars} =\frac{3,397}{1,738} \\ \\ \frac{SAV Moon}{SAV Mars} =1.9545$

therefore

the answer is

$1.9$

5 0

3 years ago

Read 2 more answers

a contractor is on top of 167 ft Tower looking down at a 37 degree angle of depression at a package attached to a rope on the gr

ArbitrLikvidat [17]

Using trigonometry ratio

$\sin 37^0=\frac{167}{x}$ $\begin{gathered} 0.6018\text{ = }\frac{167}{x} \\ 0.6018x\text{ = 167} \\ x\text{ = }\frac{167}{0.6018}\text{ = 277.5ft} \end{gathered}$

x = 277.5 ft

3 0

1 year ago

What are the answers to the last 3 problems

motikmotik

11) is 40
12) is 30
13) is 28

6 0

3 years ago