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3 years ago

Evaluate -2x2 y, if x = -3 and y = -1

Mathematics

1 answer:

Gre4nikov [31]3 years ago

6 0

The answer is -12
these are the steps on how to find that
-2x2y
-2(-3)2(y)
6 times -2
-12

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For a given angle θ, sin θ = 1. What is cos θ?

sergiy2304 [10]

Answer:

sin90 =1

cos 90 = 0

Step-by-step explanation:

θ = 90 degrees

5 0

3 years ago

Hey yall i would really appreciate your help on this plz

Katarina [22]

Answer:

the length of the opposite side (x), is 27.2

Step-by-step explanation:

For the given right triangle problem;

the opposite side of the given angle, opp. = 22

the hypothenuse side, hypo. = x

given angle of the triangle, θ = 54⁰

The length of the opposite side (x), is calculated as follows;

$sin \ \theta = \frac{opp.}{hypo.} \\\\sin (54) = \frac{22}{x} \\\\x = \frac{22}{sin(54)} \\\\x = 27.2$

Therefore, the length of the opposite side (x), is 27.2

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3 years ago

Ray UW is the angle bisector of VUT. If mVUW = (4x + 6)° and mWUT = (6x – 10)°, what is the measure of WUT? 32° 38° 48° 76°

stepan [7]

Ray UW bisect VUT it means it must be breaking them in two equal parts
VUT=VUW+WUV
and mVUW= mWUV
4x+6=6x-10
-2x=-16
x=8
mWUT=6x-10=6(8)-10=38°

Your answer is 38°

4 0

3 years ago

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Use a table of function values to approximate an x-value in which the exponential function exceeds the polynomial function.f(x)

ycow [4]

X= 2 I believe my friend

5 0

3 years ago

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Find the equation of the axis of symmetry and the coordinates of vertex of the functions =2x^2+4x-3

SVEN [57.7K]

Hello,

Find the equation of the axis of symmetry is like find the maximum or minimum point of this function.

$f(x)=2x^2+4x-3\\\\\alpha=-\dfrac{b}{2a}=-\dfrac{4}{4}=-1\\\\$

The equation of the axis of symmetry is then : $x=-1$

$\beta=f(\alpha)=2(-1)^2+4(-1)-3=2-4-3=-5$

Coordinates of vertex : $(\alpha,\beta)=(-1;-5)$

8 0

3 years ago