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4 years ago

Help pls!!! Answer all

Mathematics

1 answer:

Slav-nsk [51]4 years ago

7 0

Her room is going to be 6 by 10 cm
Her door is 1.2 cm because if you’re using a scale of 1=75 then you just have to divide the 90 by 75 and that equals 1.2
Her real bed measures 375 cm by 300 cm

Wow Linda/ Elena really needs to learn her name and how to use feet. Anyway hope this helped

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Help me understand this i need sleep!!!!!!!!!!!!!!!!

Art [367]

Answer:

f(7) = - 113

Step-by-step explanation:

When u see a function like this it just mean to place the 7 instead of the x(simply put)

so you just fill it in and then simplify:

(-4 x 49) + (10 x 7) + 13 = -113

6 0

2 years ago

The diameter of a cylindrical water tank is 10ft and its height is 11 ft what's the volume of the tank used value 3.14and round

MakcuM [25]

Answer:

863.5 ft³

Step-by-step explanation:

Given that :

Diameter, d = 10 ft

Height, h = 11 feets

Radius of tank, r = d/ 2 = 10ft / 2 = 5 ft

The volume of a cylinder is calculated using the relation :

Volume = πr²h

Volume = 3.14 * 5^2 * 11

Volume = 3.14 * 25 * 11

Volume = 863.5ft³

7 0

3 years ago

Point A is located at (3,-6) and point A is located at (1-2). What is the scale factor?

Anuta_ua [19.1K]

Answer:

The scale factor is 3.

Step-by-step explanation:

Let the origin O(0,0) is the reference point and the coordinates of the point A are given by (3,-6).

Therefore, the distance OA is given by $\sqrt{(3 - 0)^{2} + (- 6 - 0)^{2}} = 3\sqrt{5}$ units.

Again, the coordinates of point A' are (1,-2).

Therefore, the distance OA' is given by $\sqrt{(1 - 0)^{2} + (- 2 - 0)^{2}} = \sqrt{5}$ units.

Hence, the scale factor is $\frac{OA}{OA'} = \frac{3\sqrt{5} }{\sqrt{5}} = 3$ . (Answer)

4 0

3 years ago

<img src="https://tex.z-dn.net/?f=f%28x%29%20%3D%20%5Cfrac%7Bx-5%7D%7B2x%5E%7B2%7D-5x-3%20%7D" id="TexFormula1" title="f(x) = \f

Vedmedyk [2.9K]

i) The given function is

$f(x)=\frac{x-5}{2x^2-5x-3}$

The factored form is

$f(x)=\frac{x-5}{(x-3)(2x+1)}$

The domain are the values of x for which the function is defined.

$(x-3)(2x+1)\ne 0$

$(x-3)\ne0,(2x+1)\ne 0$

$x\ne3,x\ne-\frac{1}{2}$

ii) To find the vertical asymptotes, equate the denominator to zero.

$(x-3)(2x+1)=0$

$(x-3)=\ne0,(2x+1)=0$

$x=3,x=-\frac{1}{2}$

iii) To find the roots, equate the numerator to zero.

$x-5=0$

The root is $x=5$

iv) To find the y-intercept, put $x=0$ into the function.

$f(0)=\frac{0-5}{(0-3)(2(0)+1)}$

$f(0)=\frac{-5}{(-3)(1)}$

$f(0)=\frac{5}{3}$

The y-intercept is $\frac{5}{3}$

v) The horizontal asymptote is given by;

$lim_{x\to \infty}\frac{x-5}{2x^2-5x-3}=0$

The horizontal asymptote is $y=0$

vi) The function is not reducible. There are no holes.

vii) The given function is a proper rational function.

Proper rational functions do not have oblique asymptotes.

3 0

3 years ago

Read 2 more answers

Adrian ordered a corduroy jacket for $48.29 and 2 sweaters for $35 each. With 7% sales tax and

chubhunter [2.5K]

His total order was $135.52 ⇒ 1st answer

Step-by-step explanation:

Adrian ordered a corduroy jacket for $48.29 and 2 sweaters for $35 each. With 7% sales tax and shipping below

Shipping and Handling Charges
Up to $25 ⇒ $4.50
$25.01 to $75 ⇒ $6.95
$75.01 to $125 ⇒ $8.95
$125.01 to $150 ⇒ $10.95

We need to find how much his total order was

∵ The price of the jacket = $48.29

∵ The price of each sweater = $35

∵ He ordered 1 jacket and 2 sweaters

∴ The total price = 48.29 + 2 × 35 = 48.29 + 70 = $118.28

∴ His total order = total price + tax + shipping

∵ The total price = 118.29

∵ The shipping cost from $75.01 to #125 = $8.95

∵ There is 7% sales tax and shipping cost

∵ Tax = 7% of the total price

∴ Tax = 7% × 118.29 = $\frac{7}{100}$ × 118.29 = $8.28

Add the total price, the shaping and the tax to find his total order

∴ The total order = 118.29 + 8.95 + 8.28 = $135.52

His total order was $135.52

Learn more:

You can learn more about word problems in brainly.com/question/10557938

#LearnwithBrainly

5 0

3 years ago