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2 years ago

Which expression is the exponential form of

Mathematics

1 answer:

Sholpan [36]2 years ago

7 0

$\sqrt[n]{a^m}=a^{\frac{m}{n}}\\\\\sqrt{(4y)^5}=\sqrt[2]{(4y)^5}=(4y)^{\frac{5}{2}}\to\boxed{d.}$

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Solve the equation. 9+2 14x – 31 = 19<br> Please answer it step by step

siniylev [52]

Answer:

$x = \frac{41}{28} = 1 \frac{13}{28}$

Step-by-step explanation:

$9 + 2(14x - 3) = 19$

$9 + 28x - 31 = 19$

$- 22 + 28x = 19$

$28x = 19 + 22$

$28x = 41$

$\boxed{\green{x = \frac{41}{28} = 1 \frac{13}{28}}}$

4 0

2 years ago

A cube has sides of length 2 meters. Explain what happens to the volume of the cube if the length of the sides is doubled.

Bas_tet [7]

Volume of a cube with side lengths of 2, 2, and 2.
2³=8 m³

Volume of a cube with 4,4, and 4
4³=64 m³

Conclusion: The volume would be squared, or square rooted, depending on which way you are going.

8 0

2 years ago

Read 2 more answers

I need help with exercises 3,4, and 6 please show all work and don’t answer number 5 just tell me if it is correct

joja [24]

*If you need me to do #5, DM me!

3. The area of a triangle can be given by (just plug and chug as always):
$A_t = \frac{1}{2} bh = \frac{1}{2}(3)(4) = 6ft^2$
The area of the triangle is 6ft².

4. I will divide into a triangle and a rectangle (because the actual equation for the area of a pentagon requires it to be a perfect pentagon). Let's do the triangle first (height is 3 because you subtract 12 from 15):
$A_t = \frac{1}{2} bh = \frac{1}{2}(8)(3) = 12m^2$
$A_r = bh = 12(8) = 96m^2$
Now we just add them:
$96+12 = 108m^2$

So, the area of that pentagon is 108m².

5. You are actually wrong on this one because the area of a triangle is:
$A_t = \frac{1}{2}bh$
So, just halve your answer and it will be correct.

6. We can just split it into 4 triangles of equal area and then multiply the area of 1 triangle by 4 to get the total area. Let's do just that:
$A_t = \frac{1}{2}bh = \frac{1}{2}(2.5)(5) = 6.25cm^2$
Multiply by 4 to get total area:
$6.25*4 = 25cm^2$

So, the area of the given rhombus is 25cm².

8 0

2 years ago

A bag of 30 chocolate bars is shared equally among 12 children. which equation could be used to find the number of chocolate bar

IgorC [24]

Let the amount of chocolate bars each child receives be x

X= 30/12
X=5/2

8 0

3 years ago

Camilla, Lincoln and Ella sat a French test. The test was marked out of 200

Vladimir [108]

Answer:

Ella got the highest marks.

Step-by-step explanation:

Given that:

Camilla got 4/5 of the 200 marks.

Marks of Camilla = $\frac{4}{5}*200$

Marks of Camilla = 160 marks

Lincoln got 44% of the 200 marks.

Marks of Lincoln = $\frac{44}{100}*200$

Marks of Lincoln = 88 marks

Ella got 198 out of 200.

On comparing,

198 is the highest out of 200.

Hence,

Ella got the highest marks.

4 0

1 year ago