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8090 [49]
3 years ago
9

How many half dollars in $75

Mathematics
1 answer:
Akimi4 [234]3 years ago
5 0
Let me think then I'll tell u
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Find an equation of the line that passes through (4,5) and that line is parallel to y=3x+2. Give the answer in slope-Intercept f
rodikova [14]

Answer:

y = 3x - 7

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

y = 3x + 2 ← is in slope- intercept form

with m = 3

Parallel lines have equal slopes, thus

y = 3x + c ← is the partial equation

To find c substitute (4, 5) into the partial equation

5 = 12 + c ⇒ c = 5 - 12 = - 7

y = 3x - 7 ← equation of line

3 0
3 years ago
What if the simplest form of the radical expression?
patriot [66]

Answer:

\large\boxed{\dfrac{\sqrt2+\sqrt5}{\sqrt2-\sqrt5}=-\dfrac{7+2\sqrt{10}}{3}}

Step-by-step explanation:

\text{Use}\ (a-b)(a+b)=a^2-b^2\ \text{and}\ (a+b)^2=a^2+2ab+b^2\\\\\\\dfrac{\sqrt2+\sqrt5}{\sqrt2-\sqrt5}=\dfrac{\sqrt2+\sqrt5}{\sqrt2-\sqrt5}\cdot\dfrac{\sqrt2+\sqrt5}{\sqrt2+\sqrt5}=\dfrac{(\sqrt2+\sqrt5)^2}{(\sqrt2)^2-(\sqrt5)^2}\\\\=\dfrac{(\sqrt2)^2+2(\sqrt2)(\sqrt5)+(\sqrt5)^2}{2-5}=\dfrac{2+2\sqrt{(2)(5)}+5}{-3}\\\\=-\dfrac{7+2\sqrt{10}}{3}

6 0
4 years ago
What is the slope intercept form of (-12-5);slope=1/3
Luba_88 [7]

Answer:

y

−

5

=

−

3

(

x

−

12

)

Explanation:

The point-slope form of the equation of the line is usually written in formula form as

y

−

y

1

=

m

(

x

−

x

1

)

To find a specific line, replace the m with the value for the slope, here m = -3, and the coordinates of the point using the given coordinates,

(

x

1

,

y

1

)

=

(

12

,

5

)

.

Usually the brackets are removed and the equation rearranged.

Step-by-step explanation:

4 0
3 years ago
Given the data shown below, which of the following is the best prediction for
kakasveta [241]

Answer:

B.) 16.34

Hope this helps :)

6 0
3 years ago
The model below shows the ratio of gray to white squares. Which of the following is not an equivalent ratio of gray squares to t
swat32

Answer:

C

Step-by-step explanation:

You can divide all the other answers by the same number and get 3/8 except C because there is no common number they both share.

5 0
3 years ago
Read 2 more answers
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