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zvonat [6]
3 years ago
15

Round to the nearest tenth

Mathematics
1 answer:
DENIUS [597]3 years ago
7 0

Answer:

18.2

Step-by-step explanation:

23 squared = 529

14 squared = 196

529 = b squared + 196

b squared = 529 - 196 = 333

b = square root of 333 = 18.248, rounded to the nearest tenth = 18.2

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What is the missing value in x2y8 · x3y? = x5y5?
sweet-ann [11.9K]

Answer:

-3

Step-by-step explanation:

To find:

The value of '?' in the following expression:

x^2y^8.x^3y^? = x^5y^5

Solution:

First of all, let us have a look at a few rules of the exponents:

1.\ a^b.a^c=a^{b+c}

2.\ a^b.a^{-c}=a^{b-c}

Let us apply these rules and try to find out the missing value ('?') in the given expression.

Left Hand Side (LHS):

x^2y^8.x^3y^?\\\Rightarrow x^2.x^3.y^8.y^?\\\Rightarrow x^{2+3}y^{8+?}\\\Rightarrow x^{5}y^{8+?}

Now, let us compare the LHS with RHS, we get:

x^{5}y^{8+?} = x^{5}y^{5}

Dividing with x^5 on both sides:

y^{8+?} = y^5\\\Rightarrow 8+? = 5\\\Rightarrow ? = 5-8 \\\Rightarrow ? =-3

Therefore, the missing value in the expression is <em>-3.</em>

4 0
3 years ago
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svetoff [14.1K]

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Step-by-step explanation:

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If a dog weighs 240 ounces, how many grams does the dog weigh?
agasfer [191]

Answer: If the dog weighed 240 ounces it would weigh 6803.89 grams

Step-by-step explanation:

8 0
3 years ago
© A boy has N800. He spends N160. What
Anni [7]

Answer:

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Step-by-step explanation:

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4 years ago
Read 2 more answers
What are the coordinates of the endpoints of the midsegment for DEF that is parallel to DE
Nutka1998 [239]

Answer:

\left(\dfrac{x_D+x_F}{2},\dfrac{y_D+y_F}{2}\right),  \left(\dfrac{x_E+x_F}{2},\dfrac{y_E+y_F}{2}\right).

Step-by-step explanation:

Let points D, E and F have coordinates (x_D,y_D),\ (x_E,y_E) and (x_F,y_F).

1. Midpoint M of segment DF has coordinates

\left(\dfrac{x_D+x_F}{2},\dfrac{y_D+y_F}{2}\right).

2. Midpoint N of segment EF has coordinates

\left(\dfrac{x_E+x_F}{2},\dfrac{y_E+y_F}{2}\right).

3. By the triangle midline theorem, midline MN is parallel to the side DE of the triangle DEF, then points M and N are endpoints of the midsegment for DEF that is parallel to DE.

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3 years ago
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