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madreJ [45]
3 years ago
14

How do I find the two values

Mathematics
1 answer:
Aliun [14]3 years ago
4 0
X= 8 and z= 70 in this question

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Pls help what is this as a simplified fraction (thank u Jesus loves u)
GaryK [48]

Answer:

-500/11

Step-by-step explanation:

0.22 in fraction is 11/50

After replacing the decimal with a fraction, subtract it from -10.

You'll have -10÷(11/50)

You'll then change the division sign to a multiplication sign.

You'll then have that -10 × 50/11

-10×50 = -500/11.

6 0
3 years ago
Enter the ZEROS of the function below. Select 2 answers:
nexus9112 [7]
F(x) = x² - 13x + 30

f(x) = x² - 3x - 10x + 30 = 0

f(x) = x(x - 3) -10(x - 3) = 0

f(x) = (x-3)(x-10) = 0

f(x) = 3 OR 10

In short, Your Answer would be Option B & D

Hope this helps!
5 0
3 years ago
NO LINKS. Please, I really need help.
AlexFokin [52]

Answer:

7

Step-by-step explanation:

8 0
3 years ago
PROVE THAT:<br><br>cos 20° - sin 20° = ​​ \sqrt{2}sin25°<br><br>​
Lemur [1.5K]

Answer:

See below.

Step-by-step explanation:

\cos(20)-\sin(20)=\sqrt{2}\sin(25)

First, use the co-function identity:

\sin(90-x)=\cos(x)

We can turn the second term into cosine:

\sin(20)=\sin(90-70)=\cos(70)

Substitute:

\cos(20)-\cos(70)=\sqrt{2}\sin(25)

Now, use the sum to product formulas. We will use the following:

\cos(x)-\cos(y)=-2\sin(\frac{x+y}{2})\sin(\frac{x-y}{2})

Substitute:

\cos(20)-\cos(70)=-2\sin(\frac{20+70}{2})\sin(\frac{20-70}{2})\\\cos(20)-\cos(70)  =-2\sin(45)\sin(-25)\\\cos(20)-\cos(70)=-2(\frac{\sqrt{2}}{2})\sin(-25)\\ \cos(20)-\cos(70)=-\sqrt{2}\sin(-25)

Use the even-odd identity:

\sin(-x)=-\sin(x)

Therefore:

\cos(20)-\cos(70)=-\sqrt{2}\sin(-25)\\\cos(20)-\cos(70)=-\sqrt{2}\cdot-\sin(25)\\\cos(20)-\cos(70)=\sqrt{2}\sin(25)

Replace the second term with the original term:

\cos(20)-\sin(20)=\sqrt{2}\sin(25)

Proof complete.

4 0
4 years ago
There are 12 ice cream cups in a box if the box cost 9.60 how much does each cup of ice cream cost
larisa86 [58]
You would take the number of ice cream cups which is 12 and divide it by the cost which is 9.60 
12/9.60=1.25 
3 0
4 years ago
Read 2 more answers
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