All categories

3 years ago

Can someone help me with the matching

Mathematics

1 answer:

pshichka [43]3 years ago

6 0

Answer: I dunno

Step-by-step explanation:

You might be interested in

Penelope is skating at the ice rink. She travels 50 meters in 25 seconds.

Paraphin [41]

Answer:

Penelope travels 2 meters per second

Step-by-step explanation:

50/25 = ?/1

25 divided by 25= 1

(Whatever is done on the bottom is done on the top/ viceversa)

50 divided by 25 is 2

Hope this helps :)

7 0

3 years ago

Explain which method to use in 4x^2-27=0

Galina-37 [17]

So if we have 4x^2 - 27 = 0 then by using the square root properties we get:

4x^2 = 27
x^2= 27/4
x= +/- sqrt(27/4)
x=+/- 3*sqrt(3)/(2)

hope this helps! any questions please just ask! Thank you!!

3 0

3 years ago

Read 2 more answers

Please help me simplify 12/75 to a decimal

mr_godi [17]

For this case we have the following fraction:

$\frac{12}{75}$

Dividing the numerator and the denominator between 3 we have:

$\frac{\frac{12}{3}}{\frac{75}{3}}$

Then, multiplying the numerator and the denominator by 4 we have:

$\frac{4}{25} = \frac{4}{25} *\frac{4}{4}$

We observe that we have a number divided by 100. Therefore, we must move the comma two units to the left:

$\frac{16}{100} = 0.16$

Answer:

The number in its decimal form is given by:

$\frac{12}{75} = 0.16$

4 0

3 years ago

Read 2 more answers

How do I do number 16?

PolarNik [594]

Answer: x = 121 degrees

Step-by-step explanation:

(n-2) x 180

(6-2) x 180

4 x 180=720

599 +x = 720

599 - 599 = x +x = 720 - 599 = 121

and then add up all the degrees

88 + 105 + 142 + 140 + 124 + 121 = 720

so there for you answer for x is 121 degrees

8 0

3 years ago

What is the product (9t-4)(-9t<br> -4)

r-ruslan [8.4K]

Hey Tro2,

Lets find the product of your equation together,

The question we are encountering is : What is the product (9t-4)(-9t<span>-4)?

Lets simplify this step by step, shall we.

$\left(9t-4\right)\left(-9t-4\right)$ : Equation

$\mathrm{Distribute\:parentheses\:using}:\quad \left(a+b\right)\left(c+d\right)=ac+ad+bc+bd$ .

Where : $a=9t,\:b=-4,\:c=-9t,\:d=-4$ .

This leads to $9t\left(-9t\right)+9t\left(-4\right)-4\left(-9t\right)-4\left(-4\right)$ .

Now we have to $\mathrm{Apply\:minus-plus\:rules}$ .

</span>Where: $-\left(-a\right)=a,\:\:\:\:+\left(-a\right)=-a$

$-9t\cdot \:9t-9t\cdot \:4+4\cdot \:9t+4\cdot \:4$

$=-81t^2+16$

7 0

4 years ago

Read 2 more answers