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kipiarov [429]
3 years ago
8

Solve by substitution3x - 3y = -6 z=-3x-3y+9 -4x+5y+z=8

Mathematics
1 answer:
Vanyuwa [196]3 years ago
4 0
1. Y= x+2
2. Y=Y
3. E^2 Al^3 ^2 anumbs
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HELPPPP What is the volume of the square pyramid? Use Pythagorean’s Theorem to find the height of the pyramid
aalyn [17]

Answer: 4,111.7 mm³

Step-by-step explanation:

You need to use this formula to calculate the volume of the square pyramid:

V=\frac{s^2h}{3}

Where "s" is the lenght of any side of the square base and "h" is the height of the pyramid.

Find the height with the Pythagorean Theorem:

a^2=b^2+c^2

Where "a" is the hypotenuse and "b" and "c" are the legs of the right triangle. Let be "c" the height of the pyramid.

You can identify in the figure that:

a=26mm\\\\b=\frac{23mm}{2}=11.5mm\\\\c=h

Then, you can find the height:

(26mm)^2=(11.5mm)^2+h^2\\\\h=\sqrt{(26mm)^2-(11.5mm)^2}\\\\h=23.318mm

Then, knowing that:

s=23mm\\h=23.318mm

You can calculate the volume:

 V=\frac{(23mm)^2(23.318mm)}{3}=4,111.7mm^3

3 0
3 years ago
Which strategy best explains how to solve this problem? Claire bought a cup of coffee and two magazines each Saturday. The coffe
Nonamiya [84]
B is the best strategy. (You mentioned an option D, but it's not shown in your question!!)
7 0
3 years ago
Find the prime factorization of 30
sattari [20]

Let us start dividing 30 by small prime numbers in increasing order .

the smallest prime number we use is 2

Let's divide 30 by 2 quotient is 15

so we get : 30 = 2* 15

15 is not a prime number , it can be factorized further .

now we start dividing 15

2 can not divide 15 so we move to next prime number that is 3

can 3 divide 15? yes .

we get a quotient 5

so 30 is now : 2* 15 = 2* 3*5

now we have to work on 5 but 5 is a prime number so we stop here .

the prime factorization of 30 is : 2* 3* 5

Answer : 2 *3*5

5 0
3 years ago
Read 2 more answers
Chicago has a temperature of -8°F. Seattle has a temperature colder than Chicago. Select all value that could represent the temp
mihalych1998 [28]

Answer:

-10°F, -13°F, and -21°F

Step-by-step explanation:

we are looking for a temperature that is less than -8

-10°F, -13°F, and -21°F are all less than -8

4 0
2 years ago
The value of 2 in 2481 is blank times the value of 2 in 5072
kotegsom [21]
The value of 2 in 2481 is 1000 less times the value of 2 in 5072
4 0
3 years ago
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