3 years ago

Simplify (question is in the picture)

Mathematics

2 answers:

Vladimir [108]3 years ago

6 0

Answer:

27 rounded or 26.9

Step-by-step explanation:

27 times 27 is 729 the closes to 726

26.9 is the square root of 726

Sholpan [36]3 years ago

3 0

Your answer is 26.9 so u could round it up to 27

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Work out the surface area of this cylinder.<br><br> Please help, I will award brainliest.

gogolik [260]

Answer:

8*16.8 which is 302.4

Step-by-step explanation:

8 0

3 years ago

f the line passing through the points (1, a) and (5, −2) is parallel to the line passing through the points (2, 8) and (−5, a +

aleksandrvk [35]

Answer:

$a=-6$

Step-by-step explanation:

Line 1: (1, a) and (5, −2)

slope of the line is

$slope = \frac{y_2-y_1}{x_2-x_1} =\frac{-2-a}{5-1} =\frac{-2-a}{4}$

Line 2: (2, 8) and (−5, a + 7)

slope of the line is

$slope = \frac{y_2-y_1}{x_2-x_1} =\frac{a+7-8}{-5-2} =\frac{a-1}{-7}$

when the lines are parallel then slopes are equal

$\frac{a-1}{-7} =\frac{-2-a}{4}$

cross multiply it

$4(a-1)=-7(-2-a)$

$4a-4=14+7a$

subtract 4a from both sides

$-4=14+3a$

$-18=+3a$

divide both sides by 3

$a=-6$

7 0

3 years ago

The points (4,1) and (x,-6) lie on the same line. If the slope of the line is 1, what is the value of x?

bagirrra123 [75]

Answer:

x = -3

Step-by-step explanation:

Substitute the values m = 1 and from the points into the slope formula. Then solve for x.

$m = \frac{y_2-y_1}{x_2-x_1}\\\\1 = \frac{1--6}{4-x}\\\\1 = \frac{7}{4-x}\\\\4-x = 7\\\\-3 = x$

8 0

3 years ago

Given equations in standard form, you must

Anastaziya [24]

1. y= -2x +3
2. y = -4/5x - 15
3. y = -1/3x - 4
4. y = - x + 8
5. y = -4x
6. y = -3/2x -7

4 0

3 years ago

15 points Question

Mrac [35]

Answer:

18ft²

Step-by-step explanation:

V volume pyramid = 1/3× base area × height

V = 1/3 × B × h

24 ft³ = 1/3(12ft²)(6ft)

when V =54 ft³ h= 9ft B =?

V=1/3Bh

B=V3/h

B=(54×3)/9

B=6×3

B=18 ft²

7 0

3 years ago