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4 years ago

Simplify 4-(5-2) 4(6-2)÷2

Mathematics

1 answer:

user100 [1]4 years ago

6 0

-20
i however do not and will not explain just know i have a scientific calculator<span />

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What does slope tell you about a line? *

Vilka [71]

Because it's a straight line

6 0

3 years ago

Can anyone help me with this?

Semmy [17]

Step-by-step explanation:

for a it's y=12x+60

for b it's y=1x+21

for c it would be) 40-70=-30/1-3=-2 and then divide -30/-2 is 15.

for d it would be y=20x+20

it would be ethier a or d

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3 years ago

Explain what it means when an angle has radian measure 1

xenn [34]

Answer:

1 radian has degree measure (180/)°. Likewise, and angle of size 1° has radian measure /180. We can now easily obtain a formula to convert from degrees to radians and vice-versa.

6 0

4 years ago

Bailey can put x houses of his holiday miniature village on each of 7 shelves. He also has 10 houses displayed on his buffet. If

const2013 [10]

Answer:

7x + 10 ≥ 45

Step-by-step explanation:

Given that:

Number of shelves = 7

Number of houses to display on each shelf = x

Number of houses to display = atleast 45 (≥)

Number displayed on buffet = 10

Number displayed on buffet + (number of shelves * number per shelf) ≥ number of houses to display

10 + (7 * x) ≥ 45

7x + 10 ≥ 45

8 0

3 years ago

Which of the following could be points on the unit circle?

ipn [44]

Answer:

Points A and C are on the unit circle

Step-by-step explanation:

The unit circle is a circle of radius 1, that is, all the points that are inside the circle have the sum of the squares of its coordinates that are at most 1. Here, we have to test this for each option.

In options B and D, the coordinates 13/7 and 4/3, respectively, means that this sum will be larger than 1, and this points will not be on the unit circle. Now we text for options A and C.

A. ( 5/13, 12/13)

$\sqrt{(\frac{5}{13})^2+(\frac{12}{13})^2} = \sqrt{\frac{25}{169}}+\sqrt{\frac{144}{169}} = \sqrt{\frac{169}{169}} = \sqrt{1} = 1$

Since the sum of the squares is 1, the point is on the unit circle.

C. (1/3, 2/3)

$\sqrt{(\frac{1}{3})^2+(\frac{2}{3})^2} = \sqrt{\frac{1}{9}}+\sqrt{\frac{4}{9}} = \sqrt{\frac{5}{9}}$

Since the sum of the squares is less than 1, the point is on the unit circle.

5 0

3 years ago