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3 years ago

65.3 divide by 20= what's the quotient

Mathematics

1 answer:

horrorfan [7]3 years ago

6 0

Answer: 3.265

Step-by-step explanation:

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What’s the disturbutive property when solving -4(-1.5 - 9)

Bad White [126]

-4(-1.5 - 9)
-4 x -1.5 = 6
-4 x 9 = -36
Answer is -30

4 0

4 years ago

What is the length, in units, of segment CD?

leonid [27]

Answer:

The answet is C.

Step-by-step explanation:

First, you have to find the angle of ACB using Sine Rule, sinθ = opposite/hypotenuse :

$\sin(θ ) = \frac{oppo.}{hypo.}$

$let \: oppo. = 4 \\ let \: hypo. = 5$

$\sin(θ) = \frac{4}{5}$

$θ = {\sin( \frac{4}{5} ) }^{ - 1}$

$θ = 53.1 \: (1d.p)$

Given that line AB is parallel to line CD so ∠C = 90°. Next, you have to find the angle of ACD :

$ACD = 90 - 53.1 = 36.9$

Lastly, you can find the length of CD using Cosine rule, cosθ = adjacent/hypotenuse :

$\cos(θ) = \frac{adj.}{hypo.}$

$let \: θ = 36.9 \\ let \: adj. = 5 \\ let \: hypo. = CD$

$\cos(36.9 ) = \frac{5}{CD}$

$CD \cos(36.9) = 5$

$CD = \frac{5}{ \cos(36.9) }$

$CD = 6.25 units\: (3s.f)$

4 0

3 years ago

How many solutions does the equation 5x-8=3x+8

posledela

Answer:

One solution

Step-by-step explanation:

5x-8 = 3x+8

2x = 16

x = 8 = true once

5 0

3 years ago

Read 2 more answers

If point B (-5, -6) is reflected over the x -axis, what will its coordinates be?

PIT_PIT [208]

Answer:

-5, 6 when you reflect over the x axis you have to flip the sign of the y point.

3 0

3 years ago

Which of the following is a result of shifting a circle with equation

Anna007 [38]

Answer:

Hello,

Answer C

Step-by-step explanation:

x'=x

y'=y+4

(x-1)²+(y-4)²=16

(x'-1)²+(y'-8)²=16

is the circle of center (1,5) and radius 4

<u>The y-coordinate of the center of the circle increases by 4.</u>

6 0

3 years ago