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3 years ago

Helpppp Plzzzzz I relly need to finish this

Mathematics

2 answers:

algol [13]3 years ago

7 0

Answer:

1:2

Explanation is above

rusak2 [61]3 years ago

4 0

3:8 - 3:8

8:6 - 4:3

4:8 - 1:2

I would say that the answer is 1:2

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60 marks out of 75 full marks<br>express in percent<br><br>

DochEvi [55]

80 percent

Explanation:
Divide 60 by 75 and get the outcome of .80

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3 years ago

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Charlotte finds two landscape gardeners online: the first charges a fixed fee of $20 per job plus $15 per hour for labor, while

Damm [24]

$15 per hour for labor plus $5 per hour for labor

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4 years ago

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Applying Properties of Exponents In Exercise, use the properties of exponents to simplify the expression.

NemiM [27]

Answer: (a) $e^3$

(b) $e^{10}$

(c) $\dfrac{1}{e^4}$

(d) $e^{4}$

Step-by-step explanation:

Properties of exponents :

1) $a^m\times a^n=a^{m+n}$

2) $\dfrac{a^m}{a^n}=a^{m-n}$

3) $(a^m)^n=a^{mn}$

4) $a^{-n}=\dfrac{1}{a^n}$

Now , we simplify the given expression using the above properties.

a) $(e^6)(e^{-3})$

$=e^{6+(-3)}$ [By property (1)]

$=e^{6-3}=e^3$ [∵ (+)(-)=(-)]

b) $(e^{-2})^{-5}$

$=e^{-2\times-5}$ [By property (3)]

$=e^{10}$ [∵ (-)(-)=(+)]

c) $(\dfrac{e^6}{e^2})^{-1}$

$=(e^{6-2})^{-1}$ [By property (2)]

$=(e^{4})^{-1}$

$=\dfrac{1}{e^4}$ [By property (4)]

d) $(e^3)^{\frac{4}{3}}$

$=e^{3\times\frac{4}{3}}$ [By property (3)]

$=e^{4}$

7 0

3 years ago

Look at the picture. I really need this answer to continue and I just can’t figure it out! I must be doing something wrong

kompoz [17]

Volume of a cone = pir^2h/3
so substitute what you know

1,102.14 = 3.14(r^2)(13/3)
divide by 3.14
351 = r^2(4.3333)
divde by 13/3
81 = r^2
r = 9 inches

6 0

3 years ago

PLZ HELP ASAP! URGENT! Plz help me solve without using algebra plz, our teacher doesn’t allow us to use it. TYSM!!!

Cloud [144]

Your teacher is right. There is no reason to use algebra, which is misused in many problems as a shortcut, and slows the actual learning of math skills.

Here, the solution is as follows:
1. Find the volume of water in tank X.
2. Find the TOTAL base area of the three tanks, imagine that you have a larger tank with the same base area as the sum of the three.
3. Find the height of water in the new tank.

1. Find the volume of water in tank X.
Volume = 32*20*39.5=25280 cm^3

2. Find the TOTAL base area of the three tanks, imagine that you have a larger tank with the same base area as the sum of the three.
Total base area = 32*20 + 30*16 + 20*8 = 640+480+160 = 1280 cm^2

3. Find the height of water in the new tank
Height = Volume / base area
= 25280 / 1280
= 19.75 cm

6 0

3 years ago