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3 years ago

How do you know that 35x5=5x35 without finding the products?

Mathematics

1 answer:

Maurinko [17]3 years ago

5 0

They equal 5*5=25 and 35*35=1225

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The points (1,1) and (7,3) are vertices of a parallelogram.

mixer [17]

Step-by-step explanation:

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1 year ago

How many years will it take a major hamburger fast food chain to sell 45,000,000 burgers if it sells approximately 12,350 burger

TEA [102]

$1 day.....12,350 b \\ x...........45,000,000b \\\\ x=\frac{1*45,000,000}{12,350} \\\\ x=3,643.7 :365 \ (days) \\\\ x=9,98 \ days \\\\ \boxed{x=9,98\approx 10 \ years}$

8 0

2 years ago

Read 2 more answers

An object is thrown upward from the top of 96-foot building with an initial velocity of 80 feet per second. The height h of the

stiks02 [169]

The function of the object height is an illustration of a projectile motion

The object will never hit the ground

<h3>How to determine when the object hits the ground?</h3>

The function is given as:

h=16t^2+80t+96.

When the object hits the ground, h = 0

So, we have:

16t^2+80t+96 = 0

Divide through by 16

t^2+5t+6 = 0

Expand

t^2 + 3t + 2t + 6 = 0

Factorize

t(t + 3) + 2(t + 3) = 0

Factor out t + 3

(t + 2)(t + 3) = 0

Solve for t

t = -2 or t = -3

The time (t) cannot be negative.

Hence, the object will never hit the ground

Read more about projectile motion at:

brainly.com/question/1130127

5 0

2 years ago

A random sample of cats at the SPCA shows that 25 out of the 40 cats are kittens. There are a total of 800 cats at all the anima

Alinara [238K]

Answer: The number of kittens= 500.

Step-by-step explanation:

Given, A random sample of cats at the SPCA shows that 25 out of the 40 cats are kittens.

i.e. ratio of kitten to cats = $\dfrac{25}{40}=\dfrac{5}{8}$

We assume that , the ratio will remains same.

Let x be the number of kitten out of 800 , then we have

$\dfrac{x}{800}=\dfrac{5}{8}\\\\\Rightarrow\ x=\dfrac{800\times5}{8}=500$

Hence, the number of kittens out of 800 cats= 500.

7 0

3 years ago

If sinX= 0.9, what is the value of cos X?<br><br> Round the value to the nearest thousandth.

SSSSS [86.1K]

Answer: sqrt(19)/10

Step-by-step explanation:

sinx=0.9

x=arcsin(0.9)

Insert x for cos(x):

cos(arcsin(0.9)=

Use identify $cos(arcsin(x))=\sqrt{1-x^{2} }$ , so

$\sqrt{1-(\frac{9}{10})^{2}} =\sqrt{\frac{19}{100} } =\frac{\sqrt{19}}{10}$

Sorry if this is confusing.

6 0

3 years ago