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3 years ago

Figure out the answer to each riddle below:

Mathematics

1 answer:

Ahat [919]3 years ago

5 0

1. 79
2. 330
3. 452
4. 1212
5. 351
6. 202
7. 238

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0.0543 nearest whole number

zalisa [80]

0.0543 nearest whole number is 1 i think

6 0

3 years ago

Read 2 more answers

Can't figure it out!!

Zanzabum

$\bf slope = {{ m}}= \cfrac{rise}{run} \implies 
\cfrac{{{ f(x_2)}}-{{ f(x_1)}}}{{{ x_2}}-{{ x_1}}}\impliedby 
\begin{array}{llll}
average\ rate\\
of\ change
\end{array}\\\\
-------------------------------\\\\
f(x)= \cfrac{1}{x} \qquad 
\begin{cases}
x_1=2\\
x_2=b
\end{cases}\implies \cfrac{f(b)-f(2)}{b-2}=-\cfrac{1}{10}
\\\\\\
\cfrac{\frac{1}{b}-\frac{1}{2}}{b-2}=-\cfrac{1}{10}\implies 
\cfrac{\frac{2-b}{2b}}{b-2}=-\cfrac{1}{10}\implies \cfrac{2-b}{2b}=-\cfrac{b-2}{10}
\\\\\\
$

$\bf \cfrac{2-b}{2b}=\cfrac{2-b}{10}\implies 20-10b=4b-2b^2\impliedby cross-multiplying
\\\\\\
2b^2-4b-10b+20=0\implies 2b^2-14b+20=0
\\\\\\
b^2-7b+10=0\implies 
(b-2)(b-5)=0\implies b=
\begin{cases}
\boxed{5}\\
2
\end{cases}$

8 0

3 years ago

2. I am thinking of a number. It is multiplied by 9. The product is 27. What is my number? (1 point)

Nitella [24]

Answer:

$x9 = 27 \\ x = 3$

5 0

3 years ago

Read 2 more answers

When rolling two dice, Which probability has the same number of chances as rolling a P(1)?

Harman [31]

Answer:

$\frac{1}{6})$

Step-by-step explanation:

probability= <u>no of possible outcom</u><u>e</u>

total outcome

therefore p(1)=

$\frac{2}{12}$

N. B, a dice has 6faces so 2dice has 12 faces

3 0

3 years ago

For this right triangle shown, what is the sine of angle C?

choli [55]

Answer:

8.212°

Step-by-step explanation:

Hypotenuse^2=base^2+perp^2

(8)^2=(7)^2+(perp)^2

64=49+(perp)^2

64/49=perp^2

1.306=perp^2

Now taking sq root on both sides

Perp=√1.306

Perp=1.142

Sin C=opposite/hypotenuse

Sin C=1.142/8

Sin C=0.14285

C=Sin^-1 0.14285

C=8.212°

5 0

3 years ago