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Juliette [100K]
3 years ago
11

4x-5+3m-2x ; x=5 and m=7

Mathematics
2 answers:
Viefleur [7K]3 years ago
7 0

Answer:

7

Step-by-step explanation:

deff fn [24]3 years ago
3 0

Answer:

m=7

Step-by-step explanation:

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number 3 says,"If u and v are the measures of complementary angles such that sin u =2/5 and tan v =(square root of 21) 21/2, lab
vodomira [7]

Answer and Explanation:

Using trig ratios, we can express the given values of sin u and tan v as shown below

\begin{gathered} \sin u=\frac{opposite\text{ of angle u}}{\text{hypotenuse}}=\frac{2}{5} \\ \tan v=\frac{opposite\text{ of angle v}}{\text{hypotenuse}}=\sqrt[]{21} \end{gathered}

So we can go ahead and label the sides of the triangle as shown below;

We can find the value of u as shown below;

\begin{gathered} \sin u=\frac{2}{5} \\ u=\sin ^{-1}(\frac{2}{5}) \\ u=23.6^{\circ} \end{gathered}

We can find v as shown below;

\begin{gathered} u+v+90=180\text{   (sum of angles in a triangle)} \\ v+23.6+90=180 \\ v=180-113.6 \\ v=66.4^{\circ} \end{gathered}

5 0
1 year ago
Select the correct answer,
Slav-nsk [51]
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6 0
3 years ago
[01.02]
frutty [35]

Answer:

d

Step-by-step explanation:

if x =3 and f(x) =x2-2x+6 then 9=f

3 0
3 years ago
If three points lie on the same line, they are collinear.
Debora [2.8K]
It would be the fourth choice because the law of syllogism means that if a = b and b = c then a = c.
6 0
3 years ago
Read 2 more answers
How would you multiply fractions to whole numbers?
kvv77 [185]
You could just multiply the whole number with the numerator and then divide the answer by the denominator. Or you could write the whole number over 1, and then simplify the numbers before multiplying straight across. 

2/3 x 36
2/3 x 36/1
2/1 x 12/1  (simplified the 3 and the 36)
24/1=24  (just multiplied across)
3 0
3 years ago
Read 2 more answers
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