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3 years ago

If you spun the spinner 1 time, what is the probability it would land on a white piece? Put your answer in fraction form.

Mathematics

2 answers:

laiz [17]3 years ago

8 0

Answer:

4/7

Step-by-step explanation: Since there are 7 possible outcomes because there are 7 triangles the denominator will be 7. Since there are 4 white squares the chances of landing on one is 4/7

andrew11 [14]3 years ago

7 0

Answer:

4 out of 7

Step-by-step explanation:

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I need help with number 5, and 6. Please and thank you.

erastovalidia [21]

Answer:

5 - 1 year

6 - 738.92

Step-by-step explanation:

5: 260 = 250(1.04)^t

Divide both sides by 250, and we get 1.04. So t must be 1.

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2 years ago

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Lisa [10]

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Step-by-step explanation:

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3 years ago

What is the value of x? Enter your answer in the box. __cm

AveGali [126]

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3 years ago

37% of 293 estimate

earnstyle [38]

Answer:

108.41

Step-by-step explanation:

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3 years ago

If (ax+2)(bx+7)=15x2+cx+14 for all values of x, and a+b=8, what are the 2 possible values fo c

dolphi86 [110]

Given:

$(ax+2)(bx+7)=15x^2+cx+14$

And

$a+b=8$

Required:

To find the two possible values of c.

Explanation:

Consider

$\begin{gathered} (ax+2)(bx+7)=15x^2+cx+14 \\ abx^2+7ax+2bx+14=15x^2+cx+14 \end{gathered}$

$\begin{gathered} ab=15-----(1) \\ 7a+2b=c \end{gathered}$

And also given

$a+b=8---(2)$

Now from (1) and (2), we get

$\begin{gathered} a+\frac{15}{a}=8 \\ \\ a^2+15=8a \\ \\ a^2-8a+15=0 \end{gathered}$ $a=3,5$

Now put a in (1) we get

$\begin{gathered} (3)b=15 \\ b=\frac{15}{3} \\ b=5 \\ OR \\ b=\frac{15}{5} \\ b=3 \end{gathered}$

We can interpret that either of a or b are equal to 3 or 5.

When a=3 and b=5, we have

$\begin{gathered} c=7(3)+2(5) \\ =21+10 \\ =31 \end{gathered}$

When a=5 and b=3, we have

$\begin{gathered} c=7(5)+2(3) \\ =35+6 \\ =41 \end{gathered}$

Final Answer:

The option D is correct.

31 and 41

8 0

1 year ago