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3 years ago

Can someone help me with this please

Mathematics

1 answer:

Setler79 [48]3 years ago

5 0

Answer:

lesser x= 2

greater x= 12

Step-by-step explanation:

(x-7)(x-7)-25=0

x^2-7x-7x+49-25=0

x^2-14x+24=0

Factorize:

(x-12) (x-2)

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Suppose that a company wishes to predict sales volume based on the amount of advertising expenditures. The sales manager thinks

skelet666 [1.2K]

Answer:

$\$444341 \text{to the nearest dollar}$

Step-by-step explanation:

According to the sales manager, sales volume and advertising expenditures are modeled according to the linear equation.

Estimated Sales Volume=46.41+0.45(Advertising Expenditures)

If the company has target sales volume of $200,000, we are to determine its proposed advertising expenditure.

Estimated Sales Volume=46.41+0.45(Advertising Expenditures)

200000=46.41+0.45(Advertising Expenditures)

200000-46.41=0.45(Advertising Expenditures)

Advertising Expenditures

$=\dfrac{200000-46.41}{0.45}\\=444341.31\\\approx \$444341 \text{to the nearest dollar}$

The sales Manager should allocate $444,341 for advertising in the budget.

5 0

3 years ago

Find the product (-3) • (1.2) A. 4.5 B. -3.6 C. -4.6 D. 5.3

NikAS [45]

The answer is b -3.6 hope this helps and god bless my friend

4 0

3 years ago

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If no values are repeated, then a data set doesn’t have a mode. A. true B. false

Elza [17]

A. True, a mode would not exist and be considered irrelevant.

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3 years ago

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A man finds that the angle of elevationof a building is 22º. After walking 20 m towards the building, he finds that the angle of

tensa zangetsu [6.8K]

Answer:

The height of the building is 21.38 m

Step-by-step explanation:

Trigonometric Ratios

The ratios of the sides of a right triangle are called trigonometric ratios.

The image attached shows the measures and angles provided in the problem. The first angle of elevation is y=22°, the man walks B=20 m and finds the new angle of elevation is x=33°.

It's required to find the height of the building H.

The tangent ratio relates the opposite side with the adjacent side of a given angle. Applying it to the larger triangle:

$\displaystyle \tan y=\frac{\text{opposite leg}}{\text{adjacent leg}}$

$\displaystyle \tan 22^\circ=\frac{H}{D+B}$

Multiplying by D+B:

$\tan 22^\circ(D+B)=H$

Dividing by tan 22°

$\displaystyle D+B=\frac{H}{\tan 22^\circ}$

Subtracting B:

$\displaystyle D=\frac{H}{\tan 22^\circ}-B\qquad\qquad[1]$

Applying to the smaller triangle:

$\displaystyle \tan 33^\circ=\frac{H}{D}$

Multiplying by D:

$\tan 33^\circ D=H$

Substituting from [1]:

$\displaystyle \tan 33^\circ \left(\frac{H}{\tan 22^\circ}-B\right)=H$

Substituting values:

$\displaystyle 0.6494 \left(\frac{H}{0.4040}-20\right)=H$

Operating:

$1.6074H-12.988=H$

$1.6074H-H=12.988$

$0.6074H=12.988$

$H = 12.988/0.6074$

H = 21.38 m

The height of the building is 21.38 m

3 0

3 years ago

587,504 rounded to the nearest ten thousand is

Kobotan [32]

590,000

87,504 it closer to 90,000 that 80,000 so 587,504 rounded to the nearest ten thousand is 59,000

8 0

3 years ago

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