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3 years ago

Question 1. How many planes are shown in he figure

Mathematics

1 answer:

Zina [86]3 years ago

8 0

B,c,c,a those are the answers :))

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Which relationship is a function?

Sladkaya [172]

Answer:

The 4th one

Step-by-step explanation:

No X intercepts overlap

4 0

3 years ago

Please help no links

Nina [5.8K]

Answer:

x=5 y=-6

Step-by-step explanation:

3x+y=9 ------eqn1

y=4-2x -------eqn2

using substitution

put y=4-2x into eqn1

3x+4-2x=9

x=5

put x=5 into eqn2

y=4-2(5)

y=4-10

y=-6

8 0

3 years ago

What would be the concentration if we were to mix 200g of 10% sugar solution and 300g of 20% sugar solution?

Firdavs [7]

+ 200g of 10% sugar solution: there is 200*10%= 20 g
+ 300g of 20% sugar solution: 300*20%= 60 g
The total of sugar: 20+60= 80g
And The concentration is 80:(200+300)= 80:500= 16%
Have fun

6 0

3 years ago

What's the answer? Can't figure it out

soldier1979 [14.2K]

9x⁹ - 90x⁸ - 351x⁷

What do each of these numbers have in common?

They ALL have 9x⁷ in them!

So, divide each one of these by 9x⁷

9x⁹ ÷ 9x⁷ = 9x²

-90x⁸ ÷ 9x⁷ = -9x

-351x⁷ ÷ 9x⁷ = -39

So, factorized completely, it is :

9x² - 9x - 39

~Hope I helped!~

4 0

3 years ago

azamat

A histogram is used to show the frequency of data, where the length of the bar represents the frequency.

50 students drank the recommended amount of water.

The recommended amount is given as:

$Amount \ge 48$

See attachment for histogram.

From the histogram, we have the following observations

The lengths of all bars of the histogram are less than 48, except one.

The length of the bar above 48 is 50.

This means that: 50 students drank the recommended amount of water.

Hence, the number of students is 50