2 years ago

I need help with this question, please.

Mathematics

1 answer:

Agata [3.3K]2 years ago

3 0

Answer:

1 slice will be left because there are 16 slices and 15 guests

Step-by-step explanation:

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What is the value of (4-1/4) / (2-1/2)

oksano4ka [1.4K]

Answer:

5/2

Step-by-step explanation:

First lets do 4-1/4

Get lcd which is 4

16/4-1/4=15/4

Now 2-1/2

Lcd is 2

4/2-1/2=3/2

Now divide

(15/4)/(3/2)

15/4 x 2/3=5/2

8 0

2 years ago

Cot y, if csc y =-10/3 and cos y< 0

fredd [130]

$\csc y=-\dfrac{10}3\implies\sin y=-\dfrac3{10}$

$\cos^2y=1-\sin^2y\implies \cos y=\pm\sqrt{1-\dfrac9{100}}=\pm\dfrac{\sqrt{91}}{10}$

You're told that $\cos y$ , so omit the positive root.

$\cot y=\dfrac{\cos y}{\sin y}=\dfrac{-\frac{\sqrt{91}}{10}}{-\frac3{10}}=\dfrac{\sqrt{91}}3$

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3 years ago

In a basketball game 15 of 20 foul shots that Michelle attempted were successful. What percent of her shots were not successful?

mestny [16]

Work 1:
Successful Percent:
15 divided by 20 equals .75
.75 times 100 is equal to 75
75%
Not successful Percent:
100% minus 75% equals 25%
25%
Work 2:
20 minus 15 equals 5
5 divided by 20 is equal to .25
.25 times 100 is equal to 25
25%

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2 years ago

In right triangle ABC with right angle C, AC=9 and the measure of angle B=30 degree. Find the length of AB.

pshichka [43]

$From\ triangle\ with\ angles: 30^{\circ},60^{\circ},90^{\circ}\\\
|AB|=a\sqrt{3}\\
|AC|=a=9\\\\
|AB|=9\sqrt{3}\\\\
Length\ of\ |AB|\ is\ equal\ to\ 9\sqrt{3}.
$

3 0

2 years ago

Read 2 more answers

Please answer asap!!

fredd [130]

Answer:

Step-by-step explanation:

6 is about halfway to 16

21 is about halfway to 56

they meet up, which makes the line the most accurate

Yw :D

7 0

2 years ago