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vlabodo [156]
3 years ago
12

Evaluate the expressions. 3 + x, when the value of x is 15.

Mathematics
2 answers:
densk [106]3 years ago
6 0

Answer:

18

3+x (x=15)

so

3+15 =

18

Step-by-step explanation:

galben [10]3 years ago
5 0

Answer: 18

Step-by-step explanation:

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Use the permutation formula to solve a problem when n = 8 and r = 2.
Arisa [49]

Answer:

Option A. 56

Step-by-step explanation:

From the question given above, the following data were obtained:

Total number (n) = 8

Item taken for permutation (r) = 2

Pemutation (P) =?

ₙPᵣ = n! / (n – r)!

₈P₂ = 8! / (8 – 2)!

₈P₂ = 8! / 6!

₈P₂ = 8 × 7 × 6! / 6!

₈P₂ = 8 × 7

₈P₂ = 56

4 0
3 years ago
Please help!! 7th grade math! will mark brainlist!!!​
g100num [7]

Answer:

A: rectangle

B: still a rectangle

Step-by-step explanation:

Basically, if you cut it in half starting from the top straight down it would make it a rectangle because it can't be a square because all sides are not equal. And if you go from the far right top edge to the bottom left edge it will still be a rectangle but long.

Hope this helps love <3

5 0
3 years ago
Find the volume of a cylinder whose height is 7 cm and radius is 10 cm​
Karolina [17]

Question

find the volume of a cylinder whose height is 7 cm and radius is 10 cm​Answer:soln

volume of cylinder= pie r ^h where pie = 22/7

height=7 cm

radius=10 cm

now,

volume of cylinder= 22/7*10*10*7cm

V≈2199.11cm³

3 0
3 years ago
Write the slope-intercept form of the equation of the line through the given point with the given slope.
Marta_Voda [28]

-------------------------------------------------------------------------------------------------------------

Answer:  \textsf{y = x + 2}

-------------------------------------------------------------------------------------------------------------

Given:  \textsf{Slope = 1, Goes through (-1, 1)}

Find: \textsf{Determine the slope-intercept form of the equation}

Solution: In order to determine the equation we need to first use the point-slope form which uses a slope and a point which can then be simplified and solve for y to get the slope-intercept form.

<u>Plug in the values</u>

  • \textsf{y - y}_2\textsf{ = m(x - x}_1\textsf{)}
  • \textsf{y - 1 = 1(x - (-1))}

<u>Simplify and solve for y</u>

  • \textsf{y - 1 = 1(x + 1)}
  • \textsf{y - 1 + 1 = x + 1 + 1}
  • \textsf{y = x + 2}

Therefore, the simplified equation in slope-intercept form would be y = x + 2

3 0
3 years ago
What is the volume of the prism.
MAVERICK [17]

Answer:

im not sure but just multiply the length times width and height

Step-by-step explanation:

4 0
3 years ago
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