3 years ago

Is 7x2+4-2(7+3)

Mathematics

2 answers:

Bingel [31]3 years ago

8 0

C order of operations

neonofarm [45]3 years ago

3 0

C order of operations because it has more than one sign

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Convert 87 degrees to radians in terms of pi

Svetlanka [38]

87 ° to radians in terms of pi =
=> 87 × $\frac{ \pi }{180}$
=> $\frac{29 \pi }{60}$

The principle behind this conversion is that we know that π radians is equal to 180 thus we are simply 'rationalizing' to include π in the answer.

4 0

4 years ago

4. points 7th grade math 19 = h/3 - 8

vesna_86 [32]

19 = h/3 - 8

add 8 to each side

19+8 = h/3 -8 +8

27 = h/3

multiply by 3 on each side

27*3 = h/3 *3

81 = h

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3 years ago

There is a line that includes the point (-1, -1) and has a slope of 0. What is its equation in slope-intercept form?

tresset_1 [31]

Answer:

y=-1

Step-by-step explanation:

The slope intercept form of a line is

y = mx +b where m is the slope and b is the y intercept

We know the slope is zero

y = 0x+ b

Substituting the values for x=-1 and y=-1 from the point we are given

-1 =0 +b

b=-1

Putting this into the original equation

y = 0x+-1

y=-1

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3 years ago

Test for origin symmetry: y=x/(x^2+1)

Korolek [52]

$y=\dfrac{x}{x^2+1}\\\\ -y=-\dfrac{-x}{(-x)^2+1}\\ -y=\dfrac{x}{x^2+1}\\ y=-\dfrac{x}{x^2+1}$

$-\dfrac{x}{x^2+1}\not =\dfrac{x}{x^2+1}$ so it's not symmetrical about the origin.

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3 years ago

Which set of numbers represents the domain of the set of order pairs (2,10), (-3,-10), (4,-1),(-5,2)

shutvik [7]

-3.4.-5 must be the answer

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