3 years ago

Need help on #25 please!! Show your work

Mathematics

2 answers:

igor_vitrenko [27]3 years ago

7 0

Total of 90 pieces of art. and 10 are sculptures. 10:90 or 1:9

hjlf3 years ago

6 0

10 : 90; 10÷10= 1; 90÷10= 9; 1:9 or 1/9
Hope this helps

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Solve 15 = 2^(x+1).

tensa zangetsu [6.8K]

2^x * 2 = 15
2^x= 15/2
2^x = 7,5
x = log 2 (7,5)

8 0

3 years ago

Here this is the new one.

Helga [31]

Formula #1: 0.15x + 22

Formula #2: 0.19x

0.15x + 22 = 0.19x

$15x+2200=19x\\15x=19x-2200\\-4x=-2200\\\frac{-4x}{-4}=\frac{-2200}{-4}\\X = 550$

So x = 550.

I hope this helps! :)

5 0

2 years ago

The point (2,-4) is on the line given by which equation below?

densk [106]

Answer: (A) y=-2x

Step-by-step explanation:

Lets plug in the point (2,-4) for each equation.

-4=-2(2) this is correct

-4=2*2

-4=4 This cannot be true

-4=-2+3 =-4=1 This is false

Lastly, -4=2-4 this is false because -4 can't equal to -2.

So, A is the answer

5 0

3 years ago

The polynomial given below has roots?

Stels [109]

The answer is c
Two positive and two negative

6 0

3 years ago

Read 2 more answers

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Tanzania [10]

Answer:

$(x^{2} + 2)(x^{2} + 2)\\x^{4} + 2x^{2} + 2x^{2} + 4\\= x^{4} + 4x^{2} + 4\\$

$(x +1)(x + 1)(x^{2} -2x +3) = (x + 1)^{2} (x^{2} -2x +3)$

7 0

2 years ago