3 years ago

So umm help i really need it it goes on my rep

Mathematics

2 answers:

scZoUnD [109]3 years ago

8 0

Answer:

Step-by-step explanation:

pshichka [43]3 years ago

7 0

Answer:

11 . 56

12. 29

13. 53

Step-by-step explanation:

I hope it helps im sorry if there wrong:)

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What is the standard form of the equation of the line through (6,-3) with a slope of 2/3

tangare [24]

Ax+by=c is the standard form
you are given the slope and a point, so first write the equation in point-slope form:
y-(-3)=2/3(x-6)
expand the equation: y+3=(2/3)x-4
(2/3)x-y=7 is the standard form

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3 years ago

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A sphere has a radius of 2.1 cm. what is the volume of sphere in cm3 (use 3.14 for π? round to the nearest whole number.

Ket [755]

2.1 squared is 4.41, 4.41 times 3.14 is 13.84, 13.84 times 4/3 is 18.46.
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3 years ago

Evaluate the expression when c = 4, d = 1 and e = 10.<br><br> d+18

cestrela7 [59]

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3 years ago

Find the missing value of the direct variation (2,5) (5,y)

Karolina [17]

Answer:

The missing value y=12.5 and we have (5,12.5)

Step-by-step explanation:

The formula used for direct variation is:

$y\: \alpha \:x\\y=kx$

We need to find missing value (2,5)(5,y)

First we will find k, and then y

We have x=2, y=5

Find k:

$y=kx\\5=k(2)\\k=\frac{5}{2}\\k=2.5$

Now, we cam find missing value in (5,y)

We have x=5, k=2.5 and y=?

$y=kx\\y=2.5(5)\\y=12.5$

So, the missing value y=12.5 and we have (5,12.5)

7 0

2 years ago

HELP WITH THIS QUESTION PLEASE!!

svetlana [45]

m<PQS = m<SQR

4y - 10 = 2y + 10

2y = 20

y = 10

m<PQR = m<PQS + m<SQR

= 4y - 10 + 2y + 10

= 6y

= 6•10

= 60

3 0

3 years ago