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1 year ago

ANSWER FIRST=BRAINIEST

Mathematics

2 answers:

Nataly [62]1 year ago

5 0

Answer:

Step-by-step explanation:

-4x; 2 x -4 =-8, 1 x -4= -4

Svetllana [295]1 year ago

3 0

Answer:

Step-by-step explanation:

Examine each individual column of the table. How do you get from y to x? Divide by -4.

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Find the value of x then classify the triangle by its angles

kupik [55]

X = 72 and it's a scalene triangle

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3 years ago

What number should be added to 1253 to get 3000

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1847..............................

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3 years ago

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The Unit Rate is when both units in a rate are equal to each other (ie. 5 cats : 5 dogs)

horsena [70]

Answer:

False

Step-by-step explanation:

Unit Rate Definitions Unit rate is used to compare quantities in which the second quantity is one. Common examples of unit rate would include, miles per hour earnings per hour cost per gallon.

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3 years ago

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What is the area of a sector with a central angle of 108 degrees and a diameter of 21.2 cm?

Rasek [7]

Answer:

$105.84\ cm^2$

Step-by-step explanation:

step 1

Find the area of the circle

The area of the circle is

$A=\pi r^{2}$

we have

$r=21.2/2=10.6\ cm$ ----> the radius is half the diameter

substitute

$A=\pi (10.6)^{2}$

$A=112.36\pi\ cm^2$

step 2

Find the area of a sector

Remember that

The area of the circle subtends a central angle of 360 degrees

using proportion

Find out the area of a sector with a central angle of 108 degrees

$\frac{112.36\pi}{360^o}=\frac{x}{108^o}\\\\x=112.36\pi(108)/360\\\\x=33.708\pi\ cm^2$

assume

$\pi=3.14$

substitute

$33.708(3.14)=105.84\ cm^2$

7 0

3 years ago

I need geometry help please.

irina1246 [14]

Lets remember the property "alternative-interior angles" when we have parallels lines:

Given two paralles lines, the following is true:

In our question, we have:

We know that the angles J + P + K=180

So, the triangles have all the angles the same, so they are similar by angle-angle-angle, and they have one side congruent, AC=CD, so the triangles are congruents.

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1 year ago