A triangle has side lengths of (4b−5c) centimeters, (9b+10d) centimeters, and (6d−8c) centimeters. Which expression represents the perimeter, in centimeters, of the triangle?

Answer:

6)  x = 40.5

8)  x = 16.5

Step-by-step explanation:

6) 45/x = 20/18

simplify and cross-multiply to get:

45/x = 10/9

10x = 405

x = 40.5

8) 22/8 = x/6

11/4 = x/6

4x = 66

x = 33/2

x = 16.5

Answer:

20

Step-by-step explanation:

5*4=20

5*5=25, but it is bigger than 24.

So the ans is 20

Answer:

its C

Step-by-step explanation:

Answer:

42

Step-by-step explanation:

If you use the 1-2-3 ratio for a standard cake it would be three cups of flour for one cake so if you multiply three by 14 you get 42.

I hope this helped☺

Step-by-step explanation:

A. Base = (-3)

B. Exponent = 5

C. (-3)^5

= (-3) × (-3) × (-3) × (-3) × (-3) (In expanded notation form)

D. Evaluation of equation will be = -243

Answer:

1. [tex]\sqrt{7}[/tex]

2. The square root of an imperfect square

Step-by-step explanation:

A rational number is any number that can be written as a fraction (with the numerator and denominator being integers). All terminating and repeating decimals are rational.

The square root of an imperfect square is always irrational.

Note: Consider the solid object is a cylinder because the radius of base and height of the solid is given.

Given:

Radius of base = 7 cm

Height = 12 cm

To find:

The volume of the given solid.

Solution:

The volume of a cylinder is:

[tex]V=\pi r^2h[/tex]

Where, r is the radius of the base and h is the height of the cylinder.

Putting [tex]r=7,h=12,\pi=\dfrac{22}{7}[/tex] in the above formula, we get

[tex]V=\dfrac{22}{7}\times(7)^2\times (12)[/tex]

[tex]V=22\times 7\times 12[/tex]

[tex]V=1848[/tex]

Therefore, the volume of the given solid is 1848 sq. cm.

Answer:

Answer = 15

Step-by-step explanation:

10% is taking away the precentage away from the original price. 2, 4, 6 ,8 ,10, 12 ,14 ,16,18 is the 100% Its the WHOLE number. youre taking away 10% off.

Answer:

x (blue circle thing) = 46

y (dna) = -63

z (molecules) = 52

Step-by-step explanation:

Answer:

11.7

Step-by-step explanation:

use the distance formula known as pythagorem theorem and plug in the x and y values.

Answer:

80% of the students passed the algebra test

Step-by-step explanation:

So for this question, they want to know the percentage of the people that passed.

20 out of 25 students passed, we could find the percentage using two ways:

-------

1. We can use proportions to figure out the percentage (This can only work if the numbers are factorable by 100 such as 10, 25, 50...)

25 × 4 would equal 100. You must multiply the same number to the top as well.

So 20 × 4 = 80

--------

2. We can divide the two numbers

20 ÷ 25 = 0.8

When changed into a percentage, 0.8 would be 80%

-------

Have a good day :)

Answer:

30 yards per minute

or

150 feet per minute

Step-by-step explanation:

450/15 = 30

can i have brainliest please?

Answer:

The top looks like a trapezoid and so does the bottom so it's a prism.

lets find the area of the base!

15(base 1) + 7(base2) = 22

22 x 5(height) = 110

110 divided by 2( x 1/2) = 55

Now we multiply by the actual height of the TOTAL prism which is 11.

55 x 11 = 605 cubic feet, is your answer.

Formula for AREA of a trapezoid:

B1(base 1) + B2(base 2) x H(height) x 1/2 (basically just dividing by 2)

Step-by-step explanation:

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The new dimension of the rectangle is 14.4 cm ×5.4 cm option (A) is correct if the rectangle is dilated by a scale factor of 3.6.

The transformation dilation is used to resize an item. Dilation is a technique for making items appear larger or smaller. The image created by this transformation is identical to the original shape.

The question is incomplete.

The complete question is in the picture, please refer to the attached picture.

We have a rectangle shown in the picture.

The width of the rectangle  = 1 1/2 = 3/2 = 1.5 cm

The length of the rectangle = 4 cm

The rectangle is dilated by a scale factor of 3.6:

The new width of the rectangle = 1.5×3.6 = 5.4 cm

The new length of the rectangle = 4×3.6 = 14.4 cm

The dimension of the new rectangle = 14.4 cm ×5.4 cm

Thus, the new dimension of the rectangle is 14.4 cm ×5.4 cm option (A) is correct if the rectangle is dilated by a scale factor of 3.6.

Learn more about the dilation here:

brainly.com/question/13176891

#SPJ1

Answer:

(a) Neither

(a) Perpemdicular

Step-by-step explanation:

Required

Determine the relationship between given lines

(a)

[tex]y = -\frac{2}{5}x + 3[/tex]

and

[tex]y = \frac{2}{5}x + 7[/tex]

An equation written in form: [tex]y=mx + b[/tex] has the slope:

[tex]m \to slope[/tex]

So, in both equations:

[tex]m_1 = -\frac{2}{5}[/tex]

[tex]m_2 = \frac{2}{5}[/tex]

For both lines to be parallel

[tex]m_1 = m_2[/tex]

This is false in this case, because:

[tex]-\frac{2}{5} \ne \frac{2}{5}[/tex]

For both lines to be perpendicular

[tex]m_1 * m_2 = -1[/tex]

This is false in this case, because:

[tex]-\frac{2}{5} * \frac{2}{5} \ne -1[/tex]

(b)

[tex]5y + 2x = -10[/tex]

and

[tex]-5x + 2y = 4[/tex]

Write equations in form: [tex]y=mx + b[/tex]

[tex]5y + 2x = -10[/tex]

[tex]5y = -2x +10[/tex]

Divide by 5

[tex]y = -\frac{2}{5}x +2[/tex]

[tex]-5x + 2y = 4[/tex]

[tex]2y = 5x + 4[/tex]

Divide by 2

[tex]y = \frac{5}{2}x + 2[/tex]

In both equations:

[tex]m_1 = -\frac{2}{5}[/tex]

[tex]m_2 = \frac{5}{2}[/tex]

For both lines to be parallel

[tex]m_1 = m_2[/tex]

This is false in this case, because:

[tex]-\frac{2}{5} \ne \frac{5}{2}[/tex]

For both lines to be perpendicular

[tex]m_1 * m_2 = -1[/tex]

This is true in this case, because:

[tex]-\frac{2}{5} * \frac{5}{2} = -1[/tex]

Cancel out 2 and 5

[tex]-1 = -1[/tex]

Given:

Area of a sector = [tex]15\pi[/tex]

Radius = 5 cm

To find:

The central angle.

Solution:

The area of a sector is:

[tex]A=\dfrac{1}{2}r^2\theta[/tex]

Where, r is the radius and [tex]\theta[/tex] is the central angle in radians.

Putting [tex]A=15\pi, r=5[/tex] in the above formula, we get

[tex]15\pi=\dfrac{1}{2}(5)^2\theta[/tex]

Multiply both sides by 2.

[tex]30\pi=25\theta[/tex]

Divide both sides by 25.

[tex]\dfrac{30\pi}{25}=\theta[/tex]

[tex]\dfrac{6\pi}{5}=\theta[/tex]

Therefore, the central angle in radians is [tex]\theta=\dfrac{6\pi}{5}[/tex].

Step-by-step explanation:

It is in the form y=mx+c

so m1 = 1/5

Now the slope of the line perpendicular to the line Having slope m1 = 1/5 (m2)=?

when it is perpendicular, slope is given by

m1 x m2 = -1

1/5 x m2 = -1

m2 = -5

Answer:

A. 13

B. 2

Step-by-step explanation:

You use order of operations.

A. 4x2=8+12=20-7=13

B. 2x-3=-6+8=2

Answer:

Step-by-step explanation:

Don’t know

Answer:

8 quadrilaterals

Step-by-step explanation:

a quadrilateral is a shape with 4 sides and vertices

Answer:

this is the way id do this.

Step-by-step explanation:

250-125=125

125/5=x (the number of games)

x=25

or

250-125/5x

Answer:

25 games

Step-by-step explanation:

250-125=125

125÷5=25

Answer:

2344 .

Step-by-step explanation:

n/a

Answer:

A  =  $94652.66

Step-by-step explanation:

Use the compound amount formula   A = P(1 + r/n)^(nt), where r is the annual interest rate and n is the number of compounding periods per year.

Here, A = ($77000)(1 + 0.07/2)^(2*3), or

          A = $77000(1.035)^6, or

          A  =  $77000(1.229), or

           A  =  $94652.66

Answer:

Incomplete Question. Send Full question pls.

Answer:

5 x 3 x 2 = 30 feet

Step-by-step explanation:

Multiply all given lengths (has to be 3) in order to get the volume.

Answer:

Step-by-step explanation:

5 : 25

In simplest form

1 : 25

In fraction form

1/25

In decimal form

0.04

150 : 300

In simplest form

1 : 2

In fraction form

1/2

In decimal form

0.5