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katovenus [111]
3 years ago
13

Exsplain too please, how has your day been btw?

Mathematics
2 answers:
Fudgin [204]3 years ago
8 0

Answer:

Answer choices A, E, and F

Step-by-step explanation:

2^5\cdot2^4=2^9, or just 2 multiplied by itself 9 times. I'm doing good, thanks for asking! PM me if you have more questions.

bogdanovich [222]3 years ago
5 0

Answer:

2⁹

Step-by-step explanation:

{2}^{5}  \times  {2}^{4}  \\  =  {2}^{5 + 4}  \\  =  {2}^{9}

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A scientist has a container of 2% acid solution and a container of 5% acid solution. How many fluid ounces of each concentration
algol [13]

Let 'a' be the number of ounces of 2%-solution in the 25-ounce mixture

and 'b' be the number of ounces of 5%-solution in the 25-ounce mixture.

Since, fluid ounces of each concentration should be combined to make 25 fl oz.

So, a+b=25 (Equation 1)

And, a container of 2% acid solution and a container of 5% acid solution should be combined to make 25 fl oz of 3.2% acid solution.

So, a of 2% + b of 5% = 3.2% of 25

(a \times \frac{2}{100})+(b \times \frac{5}{100})= 25 \times \frac{3.2}{100}

(0.02a)+(0.05b)= 0.8

Multiplying the above equation by 100, we get

2a+5b=80 (Equation 2)

Substituting the value of a=25-b in equation 2, we get

2(25-b)+5b=80

50-2b+5b=80

50+3b=80

3b=30

b=10

Since, a=25-b

a= 25-10

a=15.

So, 15 fluid ounces of 2% solution combined with 10 ounces of the 5% solution to create a 25-ounce mixture at 3.2% concentration of acid.

7 0
3 years ago
A cone has a height of 8 yards and a radius of 3 yards. What is its volume?
alina1380 [7]
<h3>Given:</h3>
  • h= 8 yd
  • r= 3 yd
<h3>Note that:</h3>
  • h= Height
  • r= Radius
<h3>To find:</h3>

The volume of the given cone.

<h3>Solution:</h3>

\large\boxed{Formula:V= \frac{1}{3}\pi{r}^{2}h}

\large\boxed{\red \pi \red = \red 3 \red . \red 1 \red 4}

Let's solve!

Substitute the values according to the formula.

V= \frac{1}{3}×3.14×{3}^{2}×8

\large\boxed{V= 75.36 \: {yd}^{3}}

<u>Therefore, the volume of the given cone is 75.36 cubic yards.</u>

7 0
1 year ago
Can anyone help me on #3?? And explain?
Alekssandra [29.7K]
Since we know the polygons are similar, the side length ratio of each side must be equal.
13/5 = x/10
Multiply both sides by 10
x = 26
That's your answer. Have a nice day! :)
7 0
3 years ago
Can someone list the equation of the area of trapazium
Step2247 [10]
Area =  (h/2)(a +b)

where h = distance between the 2 parallel line segments  and a and b are the lengths of these 2 line segments.
5 0
3 years ago
Why can't the sum of any 4 consecutive numbers be a multiple of four?
anyanavicka [17]

It wouldn't be able to be because since all of the the numbers that could fit is probably going to be a decimal. Let's say we find 4 consecutive numbers of 32.

Equation:

x+(x+1)+(x+2)+(x+3)=32

4x+6=32

    -6    -6

4x=26

x=6.5 1. 6.5, 7.5, 8.5, 9.5

As you can see, the consecutive number is going to be a decimal.  

6 0
3 years ago
Read 2 more answers
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