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3 years ago

(x-4)2 + 3x at the value x = 7

Mathematics

2 answers:

Volgvan3 years ago

6 0

Answer:

Step-by-step explanation:

x = 7

( x - 4 )^2 + 3x

= ( 7 - 4 )^2 + 3 ( 7 )

= 3^2 + 21

= 9 + 21

= 30

julia-pushkina [17]3 years ago

4 0

Answer:

The answer is 27

Step-by-step explanation:

(X-4)2 + 3x

x is equal to 7

first substitute the values.

(7-4)2 + 3 x 7

solve-

(3)2 + 21

=27

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Simplify csc θ(1−cos^2 θ)/sinθ cos θ to a single trigonometric function

topjm [15]

Answer:

$\frac{cosec\alpha(1-cosx^{2} \alpha ) }{sin\alpha cos\alpha } = sec\alpha$

Step-by-step explanation:

Step(i):-

Given that the trigonometric function

$\frac{cosec\alpha(1-cosx^{2} \alpha ) }{sin\alpha cos\alpha }$

we know that sin²∝ + cos²∝ = 1

⇒ sin²∝ = 1- cos²∝

Now we have to simplify the given trigonometric function

= $\frac{cosec\alpha(sin^{2} \alpha ) }{sin\alpha cos\alpha }$

= $\frac{cosec\alpha(sin \alpha ) }{ cos\alpha }$

Step(ii)

we know that cosec∝ = 1/ sin∝

= $\frac{\frac{1}{sin\alpha } (sin \alpha ) }{ cos\alpha }$

After cancellation sine function, we get

= $\frac{1 }{ cos\alpha } = sec\alpha$

Final answer:-

$\frac{cosec\alpha(1-cosx^{2} \alpha ) }{sin\alpha cos\alpha } = sec\alpha$

6 0

3 years ago

Ming has a goal to jog 4 1/2 miles each day. On Monday she jogged 5 9/16 miles. How many much if she exceed her goal for that da

timama [110]

Answer:

Ming exceed $1\frac{1}{16}$ miles her goal for that day

Exep-by-step explanation:

$5\frac{9}{16}- 4\frac{1}{2} =5\frac{9}{16} -4\frac{8}{16}=1\frac{1}{16} miles$

3 0

3 years ago

Given the Coordinate R(2, -3) find R'' after the following transformations

torisob [31]

Using translation concepts, it is found that the image of point R after the transformations is given by: (1,-2).

<h3>What is a translation?</h3>

A translation is represented by a change in the function graph, according to operations such as multiplication or sum/subtraction in it's definition.

The first transformation is:

(x,y) -> (x - 3, y + 5).

Hence:

(2,-3) -> (-1, 2).

For the rotation of 180º counter clockwise, the rule is:

(x,y) -> (-x,-y).

Hence the image is:

(-1,2) -> (1,-2).

More can be learned about translation concepts at brainly.com/question/4521517

#SPJ1

3 0

2 years ago

I'm not sure if i'm correct would a be the answer? or can someone correct me please

Soloha48 [4]

Answer:

yes I believe you are correct

5 0

3 years ago

the width of a laptop is 11.25 inches. the width is 0.75 times the length. what is the length of the laptop

Snezhnost [94]

$\bf \stackrel{width}{11.25}=0.75\stackrel{length}{L}\implies \cfrac{11.25}{0.75}=L\implies 15=L$

8 0

3 years ago