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4 years ago

Helpp pt.4 plzzzzzz

Mathematics

1 answer:

RUDIKE [14]4 years ago

5 0

Answer:a and c

Step-by-step explanation:

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<img src="https://tex.z-dn.net/?f=3x%2B7%3D12-2x%3B1" id="TexFormula1" title="3x+7=12-2x;1" alt="3x+7=12-2x;1" align="absmiddle"

Igoryamba

Step-by-step explanation:

$3x + 7 = 12- 2x \\ 3x + 2x = 12 - 7 \\ 5x = 5 \\ x = \frac{5}{5} \\ x =1$

5 0

3 years ago

Graph the solution set to the system Y<15-0.41

Vlad [161]

Answer:

The graph in the attached figure

Step-by-step explanation:

The correct question is

Graph the solution set to the system

Y<(1/5)x-0.41

we have

$y$

The solution is the shaded area below the dashed line $y=\frac{1}{5}x-0.41$

The slope of the dashed line is positive $m=\frac{1}{5}$

The y-intercept of the dashed line is (0,-0.41)

The x-intercept of the dashed line is (2.05,0)

To find out the solution set, draw the intercepts and connect them to plot the dashed line, and shade the area below the dashed line

The graph in the attached figure

8 0

3 years ago

A. Directions: Find the surface of the following. Round your answer to nearest

Taya2010 [7]

Answer:

1. S.A of a cone = 565.56 cm².

2. S.A of a cone = 276.496 cm².

3. S.A of a sphere = 128.696 cm².

4. S.A of a sphere = 113.112 cm².

Step-by-step explanation:

Given the following data;

1. Radius, r = 15cm

Slant height, l = 12cm

Mathematically, the surface area of a cone is given by the formula;

Surface area of a cone = πrl

Substituting into the formula, we have;

S.A of a cone = 3.142 * 15 * 12

S.A of a cone = 3.142 * 180

S.A of a cone = 565.56 cm²

2. Radius, r = 8cm

Slant height, l = 11cm

Surface area of a cone = πrl

S.A of a cone = 3.142 * 8 * 11

S.A of a cone = 3.142 * 88

S.A of a cone = 276.496 cm²

3. Radius, r = 3.2 cm

Mathematically, the surface area of a sphere is given by the formula;

Surface area of a sphere = 4πr²

Substituting into the formula, we have;

S.A of a sphere = 4 * 3.142 * 3.2²

S.A of a sphere = 4 * 3.142 * 10.24

S.A of a sphere = 40.96 * 3.142

S.A of a sphere = 128.696 cm²

4. Diameter, d = 6cm

Radius, r = diameter/2 = 6/2 = 3 cm

Surface area of a sphere = 4πr²

S.A of a sphere = 4 * 3.142 * 3²

S.A of a sphere = 4 * 3.142 * 9

S.A of a sphere = 36 * 3.142

S.A of a sphere = 113.112 cm²

4 0

3 years ago

Brandon wrote a decimal number one of the digits in the number was a 6 that had a bag of 6 * 1/10 which could be the decimal num

pshichka [43]

Answer:

0.6

Step-by-step explanation:

Given that:

One of the decimal figure that Brandon wrote is 6; this particular 6 we are talking about contains a bag of $6\times \dfrac{1}{10}$ that has the possibility of becoming the decimal number he wrote; to find that decimal number:

Then;

$= 6\times \dfrac{1}{10}$

$=\dfrac{6}{10}$

$\mathbf{= 0.6}$

5 0

3 years ago

Twice the square of a number minus 3 is 47. Find the number

lorasvet [3.4K]

Answer:

Explanation:

5 squared is 25. 25 times 2 is 50. 50 minus 3 is 47.

6 0

3 years ago

Helpp pt.4 plzzzzzz​

Helpp pt.4 plzzzzzz