Please Help Giving Brainlist!!!!! Given that the area of rectangle IJKL is 490 units^2, what are its length and width?

[tex]P = l + l + b + b[/tex]

[tex]P = 2(2a + 3) + 2(8a - 12)[/tex]

[tex]\boxed{\sf{P=20a-18}}[/tex]

[tex]P = 20(3) - 18[/tex]

[tex]P = 60 - 18[/tex]

[tex]\boxed{\sf{P = 42 cm}}[/tex]

[tex]P = (3b + 7) + (7b - 2) + (7b - 2)[/tex][tex]\boxed{\sf{P = 17b+3}}[/tex]

[tex]P = 17(6) + 3[/tex]

[tex]P = 102 + 3[/tex]

[tex]\boxed{\sf{P = 105 \: m}}[/tex]

Answer:

4080 cm³

Step-by-step explanation:

Figure is of a cuboid

Given length (l) = 30cm

breadth (b) = 17cm

height (h) = 8cm

Volume of cuboid = l.b.h

= 30 × 17 × 8

= 4080 cm³

Answer:

irrational

Step-by-step explanation:

irrational because it has decimals at the end.

Since we can write the given decimal number into fractional form therefore it is a rational number.

Use the concept of decimals defined as:

Every digit in a number has a place value in mathematics. The value a digit in a number represents based on where it is in the number is known as place value.

The given number is:

2.06532

The number 2.06532 is rational because it can be expressed as a fraction of two integers.

In this case,

It can be written as the fraction 206532/100000.

Hence,

The given number is a rational number.

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Answer:

-18

Step-by-step explanation:

Hope it helps....................................................

Answer:

-4 and -8

Step-by-step explanation:

(x+4)(x+8) = 0

x+4 = 0 or x +8 = 0

x = -4 or x = -8

Answer:

3 miles/hour.

Step-by-step explanation:

If the question is what is Bryce's average speed over the lap it is:

Distance / time

1/3 / 1/9

= 1/3 * 9

= 9/3

= 3 miles/hour.

I think it is negitave 6 times  negitave 6 hope this helps.

Answer:

16 ft^2

Step-by-step explanation:

The area of a triangle is calculated by multiplying its height and base then dividing it by 2

Height of this triangle is given as 4ft

the base is 8ft

4*8/2 = 16 the area is given is square units so the answer is 16 ft^2

Answer:

60 copies would cost 3.60

Step-by-step explanation:

length= 9 cm

width= 5 cm

height= 4 cm

the surface area of the given cuboid.

[tex]s.a = 2(lb + bh + lh)[/tex]

[tex]s.a = 2((9 \times 5) + (5 \times 4) + (9 \times 4))[/tex]

[tex]s.a = 2(45 + 20 + 36)[/tex]

[tex]s.a = 2 \times 101[/tex]

[tex]s.a = 202 \: {cm}^{2} [/tex]

therefore, the surface area of the given cuboid is 202 square centimeters.

Answer:

30, 30, 120

Step-by-step explanation:

Answer:

•50, 30, 100

Step-by-step explanation:

One side (100) is much bigger than the rest (over 90), and the other two are not alike or the same, making it scalene.

The measure of minor arc BC is equal to ∠BPC which is 147 degrees.

An equation is an expression that shows the relationship between two or more variables and numbers.

From the diagram:

4k + 159 = 2k + 153 (vertical opposite angles are equal)

4k + 159 = 2k + 153

k = -3

Arc Bc = 4k + 159 = 4(-3) + 159 = 147

The measure of minor arc BC is equal to ∠BPC which is 147 degrees.

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Answer: 147 :)

Step-by-step explanation:

khan academy

Answer:

21.

Step-by-step explanation:

Angles subtended by the same arc on the circumference of the circle are congruent, so:

2x = 42

x = 21.

The LCD of the rational equation [tex]-\frac{3}{x + 2} + \frac{5x}{x - 1} = \frac{x + 2}{x^2 -3x + 2}[/tex] is (x + 2) (x -1)(x - 2)

The rational equation is given as:

[tex]-\frac{3}{x + 2} + \frac{5x}{x - 1} = \frac{x + 2}{x^2 -3x + 2}[/tex]

Factorize the quadratic denominator

[tex]-\frac{3}{x + 2} + \frac{5x}{x - 1} = \frac{x + 2}{(x -1)(x - 2)}[/tex]

Write out the denominators

(x + 2), (x - 1) and (x -1)(x - 2)

Remove the repetition

(x + 2) (x -1)(x - 2)

Hence, the LCD of the rational equation is (x + 2) (x -1)(x - 2)

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volume: volume of cone is 1/3πr^2h

radius is 2

height is 6

plug into equation: 1/3π(2)^2*6=about 2.55 or 8π

surface area: surface area of cone is πrs+πr^2 where s is slant height.

to find slant height use pythagorean theorem: √(2^2+6^2)=√40

radius: 2

height:6

slant height: √40

plug into equation: π(2)(√40)+π(2^2)=about 52.30 or 4√10π+4π

Answer:

BC / 8 = sin 35° by definition.

Step-by-step explanation:

Answer:

Answer is 5

Step-by-step explanation:

Arrange the data in an ascending order and the median is the middle value. If the number of values is an even number, the median will be the average of the two middle numbers.

Answer:

PQ = 6 units

Step-by-step explanation:

note that the y- coordinates of P and Q are both - 7

then PQ is the difference in the x- coordinates, that is

PQ = | 7 - 1 | = | 6 | = 6

or PQ = | 1 - 7 | = | - 6 | = 6

Using a calculator, it is found that the correlation coefficient for this data is given by:

B. -0.901.

To find the coefficient, which has symbol r², we input in a calculator the values of x and the values of y, hence:

r² = -0.901.

Which means that option B is correct.

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Answer:

They will cross the finish line together in 175 minutes.

Step-by-step explanation:

This question asks you to consider the 25 and 35 times table.

I listed the 25 and 35 times tables and tried to find the lowest common multiple.

You can see that on Josephs' 7th lap of the track he will cross the line simulatneously with Owuor who will be on his 5th lap.  So the answer should be 175 minutes.

25 × 1 = 25   35 × 1 = 35

25 × 2 = 50   35 × 2 = 70

25 × 3 = 75       35 × 3 = 105  

25 × 4 = 100   35 × 4 = 140

25 × 5 = 125   35 × 5 = 175

25 × 6 = 150     35 × 6 = 210

25 × 7 = 175

25 × 8 = 200

Answer:

Step-by-step explanation:

Answer:

scale factor = [tex]\frac{3}{4}[/tex]

Step-by-step explanation:

the scale factor is the ratio of corresponding sides , Q to P , then

scale factor = [tex]\frac{3}{4}[/tex]

Answer:

2

Step-by-step explanation:

-3 log₂ (-n + 10) = -16+7

-3 log₂ (-n + 10) = -9

log₂ (-n + 10) = -9/-3

log₂ (-n + 10) = 3

-n + 10 = 2^3

-n + 10 = 8

n=2

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Answer:

mPS = 80°

Step-by-step explanation:

angles on a circle subtended by the same arc are congruent

∠ PQS and ∠ PRS are both subtended by arc PS , then

10 + 3x = 110 - 7x ( add 7x to both sides )

10 + 10x = 110 ( subtract 10 from both sides )

10x = 100 ( divide both sides by 10 )

x = 10

then

∠ PQS = 110 - 7x = 110 - 7(10) = 110 - 70 = 40°

the inscribed angle PQS is half the measure of its intercepted arc PS , then

PS = 2 × 40° = 80°

The equation of the line that passes through the points (7, 450) and (14, 401) is y + 7x = 499

The equation of a line  can be represented as follows:

y - y₁ = m(x - x₁)

where

Therefore, (7, 450)(14, 401)

m = 401 - 450 / 14 - 7 = -49 / 7 = -7

Therefore, using (7, 450)

y - 450 = -7(x - 7)

y - 450 = -7x + 49

y + 7x = 49 + 450

y + 7x = 499

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Answer:

Below.

Step-by-step explanation:

This is the correct solution:

6 - 2x + 5 + 4x

= -2x + 4x + 6 + 5

= 2x + 11.

It looks like they added  unlike  terms together (4x + 5) to give 9x (incorrect)  then added the 4x to give 13x.