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lapo4ka [179]
3 years ago
14

Khan academy!! Pls help will give brainllyest!!!

Mathematics
2 answers:
Anastaziya [24]3 years ago
7 0

Answer:

<u>C and D</u>

Step-by-step explanation:

<u>D.</u> A negative times a positive gives you a negative, so the first 2 fractions will still be negatives after they get out of the parenthesis

<u>C.</u> The 4/7 and -4/7 cancel out

olasank [31]3 years ago
6 0
C and D
Hope it helps! Have a great day!
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What is the orthocenter of (1,3) (-3,1) (0,0)
nikklg [1K]

Answer:

(0,0)

Step-by-step explanation:

Orthocenter is the intersection of the three altitudes in a triangle.

https://www.wolframalpha.com/widgets/view.jsp?id=c17a1939f921b8bf84b5ddb332a9a634

5 0
4 years ago
Write the equation of the line in slope intercept form that passes through the two points: (1,-6) and (-3,2)
tatiyna

Answer:

y = -2x - 4

Step-by-step explanation:

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

(1, -6) (-3, 2)

\frac{-6-2}{1-(-3)}=\frac{-8}{4} =-2

The slope is -2

y = -2x + b

So let's find b, insert 2 for y and -3 for x to find b

2 = -2(-3) + b

2 = 6 + b

Subtract 6 from both sides to get b alone

-4 = b

We found what b equals (the y-intercept), which is -4

So, the equation is y = -2x - 4

Hope this helps and pls do mark me brainliest:)

5 0
3 years ago
Find the sum of the given series up to the 100th term: 3 + 8 + 13 + 18 +......
EleoNora [17]

Answer:

B = 25050

Step-by-step explanation:

S=n/2(2a1+(n-1)d)

4 0
3 years ago
Order these from least to greatest: .25, 3/8, 7/12, 5/16, .5
ivann1987 [24]
So before I tell you the answer this is a bit of explanation:)


To make it easier change the fraction into decimals!

3/8 = .375

5/16 =.3125

7/12 = .583

.5 = 0.5

.25 = 0.25

So, according to my calculations I believe it goes like this: 0.25, 0.375, 0.3125, 0.5, .583

Really I am not sure if this is correct but I hope this helps you understand you can order it whatever way you want but make sure you understand the explanation :) have a great day!!

6 0
3 years ago
Suppose the area of a circle is 254.4696 square inches. Whats the radius of the circle (use pie=3.1416. A. 18 in. B. 81 in. C. 9
zalisa [80]

Answer:

The radius of the circle is 9 in

Choice C is correct

Step-by-step explanation:

254.4696 square inches. Whats the radius of the circle (use pie=3.1416.

The area of a circle with radius r is given as;

A=\pi *r^{2}

We substitute the given area and the value of pi given to solve for the radius;

254.4696=3.1416*r^{2}\\\\r^{2}=\frac{254.4696}{3.1416}\\\\r^{2}=81\\\\r=\sqrt{81}=9\\\\r=9

6 0
4 years ago
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