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3 years ago

If you can help whit the 2 thanks

Mathematics

2 answers:

IgorC [24]3 years ago

3 0

You multiply 3x9x5x4=540

algol [13]3 years ago

3 0

You would want to start by cutting it into 2 rectangles!

So the dimsenions of the 2 are,

3 x 5, and 5 x 4

A = lw
A = (3)(5)
A = 15

A= lw
A=(5)(4)
A=20

20+15=35

So the area is 35ft^2

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If ∠1 and ∠2 are vertical angles and m∠2=108°, find m∠1.

marysya [2.9K]

Answer:

Step-by-step explanation:

Is it 72???

5 0

3 years ago

There are 50 apple trees in an orchard. Each tree produces 800 apples. For each additional tree planted in the orchard, the outp

Mariana [72]

Answer:

15
42,250

Step-by-step explanation:

The given function is,

$P=40000+300x-10x^2$

where,

P = the total production of apples,

x = the number of trees added.

As the quadratic function has a negative leading coefficient, so it will open downward and at the vertex the value of function is maximum.

The vertex will be at $\left(-\dfrac{b}{2a},-f\left(\dfrac{b}{2a}\right )\right)$

The value of the function will be maximum at,

$x=-\dfrac{b}{2a}$

Putting the values,

$x=-\dfrac{300}{2\times (-10)}=\dfrac{300}{2\times 10}=\dfrac{300}{20}=15$

So at x=15 or for 15 number of trees the production will be ,maximum.

Putting x=15 in f(x) will yield the maximum production of apples.

$P=40000+300(15)-10(15)^2=42,250$

4 0

3 years ago

In 2018, there were about 32 million teenagers (aged 13–17) in the United States. They each sent an average of 1200 text message

Alja [10]

Answer:3.84x10^10

Step-by-step explanation:

32,000,000 teenagers

1200 text messages per month

32,000,000 * 1,200= 38,400,000,000----(scientific notation)-----> 3.84x10^10

3 0

3 years ago

Hi please help me no links thank you

olya-2409 [2.1K]

Step-by-step explanation: (I'm not gonna' do it all for you tho)

to convert from percent to fraction:

70% = $\frac{70}{100} =\frac{7}{10}$

to convert from fraction to percent:

$\frac{11}{20}=\frac{55}{100}$ = 55%

to convert from fraction to decimal:

$\frac{3}{25} =\frac{12}{100} =0.12$

to convert from decimal to fraction:

$1.25=\frac{125}{100} =1\frac{25}{100} =1\frac{1}{4}$

to convert from percent to decimal:

0.2% = $\frac{0.2}{100} =0.002$

to convert from decimal to percent:

$0.4= (0.4*100)$ % = 40%

With that, you can solve the rest on your own

4 0

3 years ago

Determine the density of the rock using correct significant digits. The mass of the rock is 25.69 g.

Dvinal [7]

Density = mass / volume

Mass = 25.69g and Volume = 10 mL

D = 25.69g / 10mL

Density = 2.569 g/mL

5 0

3 years ago