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2 years ago

9

When solving: 1,175 ÷ 5, using partial quotients, how would you decide which power of 10, when multiplied by 5, should be subtra

cted first?

1 answer:

lesya692 [45]2 years ago

7 0

Answer:

1,165

Step-by-step explanation:

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Which of the following is the equation of a line that passes through the point (3,2) and is parallel to the y-axis

liubo4ka [24]

X= 3
hope this helps!

8 0

4 years ago

Can anyone explain how to do this? The answer isn't as important as the explanation. My teacher gave us a video w/o an example l

solong [7]

Answer:

x = 182.53

Step-by-step explanation:

Use trigonometric ratios to find the whole side length (a) adjacent to 20° and the side length (b) adjacent to 57° respectively. Then find the difference. That would give you the value of x. That is: a - b = x

Let's solve.

✍️Finding the whole side length adjacent to 20°:

Opp = 87

Adjacent length = ? = a

$\theta = 20$

Thus,

$tan(\theta) = \frac{opposite}{adjacent}$

Plug in the values

$tan(20) = \frac{87}{a}$

Multiply both sides by a

$tan(20) \times a = \frac{87}{a} \times a$

$tan(20) \times a = 87$

Divide both sides by tan(20)

$\frac{tan(20) \times a}{tan(20)} = \frac{87}{tan(20)}$

$a = \frac{87}{tan(20)}$

$a = 239.03$

Finding the side length adjacent to 57°:

Opp = 87

Adjacent length = ? = b

$\theta = 57$

Thus,

$tan(\theta) = \frac{opposite}{adjacent}$

Plug in the values

$tan(57) = \frac{87}{b}$

Multiply both sides by b

$tan(57) \times b = \frac{87}{b} \times b$

$tan(57) \times b = 87$

Divide both sides by tan(57)

$\frac{tan(57) \times b}{tan(57)} = \frac{87}{tan(57)}$

$b = \frac{87}{tan(57)}$

$b = 56.50$

Therefore:

x = a - b

x = 239.03 - 56.50

x = 182.53

4 0

3 years ago

If ABCD is an isosceles trapezoid, what is the value of x?<br><br><br> AC = 5x - 25<br> BD = 3x + 11

bija089 [108]

Answer:

X=18

Step-by-step explanation:

Isosceles means two sides are equal. In this case AC and BD are the same. So put both equations equal to each other and solve

6 0

3 years ago

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Hi people, Please if someone can give me a hand, l already have done the first part of the exercise, but l cant make Angle CAB=

liraira [26]

Answer:

(c) 1.02

Step-by-step explanation:

(c) The tangent is the ratio of Opposite to Adjacent. Its lowest value will be found where Opposite is lowest, and Adjacent is highest:

min tan(A) = (min BC)/(max AB) = 75/73.5 ≈ 1.020408...(42-digit repeat)

3 0

3 years ago

Write the equation for a parabola that has x-intercepts (−4.5, 0) and (−2.8, 0) and y-intercept (0, 37.8).

zaharov [31]

Answer:

$y=3(x+4.5)(x+2.8)$ or $y=3x^2+21.9x+37.8$

Step-by-step explanation:

we know that

The equation of a vertical parabola in factored form is equal to

$y=a(x-x_1)(x-x_2)$

where

a is a coefficient

x_1 and x_2 are the roots or x-intercepts of the quadratic equation

In this problem we have

$x_1=-4.5\\x_2=-2.8$

substitute

$y=a(x+4.5)(x+2.8)$

<em>Find the value of a</em>

we have the y-intercept (0,37.8)

substitute the value of x and the value of y of the y-intercept in the equation and solve for a

$37.8=a(0+4.5)(0+2.8)$

$a=37.8/12.6\\a=3$

so

$y=3(x+4.5)(x+2.8)$

Convert to expanded form

$y=3(x^2+2.8x+4.5x+12.6)$

$y=3x^2+21.9x+37.8$

7 0

3 years ago

Read 2 more answers