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3 years ago

Plzzzzzzzz help meeeeee

Mathematics

2 answers:

Scilla [17]3 years ago

6 0

Answer:

Number 1 is: 120

Number 2: is 42

Number 3 is:27

Step-by-step explanation:

How to solve number 1 is to multiply 4 times 5 then multiply it by 6 and that is how you get 120

How to solve number 2 Multiply 3 times 2 then you get 6 then you do 6 times 7 and that is how you get 42

How to solve number 3 Multiply 3 times 3 then you get 9 then 9 times 3 equals 27

That is how you solve hope this help :)

It would be great if you gave brainlist

Westkost [7]3 years ago

5 0

Answer:

1-120 in. 2-16cm 3-27 m

Step-by-step explanation:

Please be mad if im wrong

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12y + 29y +48y + 2ly + 13y + 7y

Mama L [17]

Answer:

Add all of the numbers then put a Y at the end.

Step-by-step explanation:

its just combining like terms, if their all Y. its jist adding with a letter at the end

3 0

3 years ago

Read 2 more answers

PLEASE HELPP … Find the measure of BD .

postnew [5]

Answer:

BD = 8.5 units

Step-by-step explanation:

From the figure attached,

ΔABC and ΔADB are the right triangles.

By applying mean proportional theorem,

$\frac{\text{AD}}{\text{BD}}=\frac{\text{BD}}{\text{CD}}$

BD² = AD × CD

BD² = 6 × 12

BD = √72

BD = 6√2

= 8.485

BD ≈ 8.5 units

Therefore, measure of segment BD will be 8.5 units.

3 0

3 years ago

If m∠F = 90° and m∠G = 70°, then ∠F and ∠G are not supplementary.

miss Akunina [59]

a) Proof by contradiction is different from traditional proof as it accepts a single example showing that a statement is false, instead of having the need to derive a general relationship for all input values.

b) The statement is true by contradiction as the sum of the measures is of 160º, and not 180º.

<h3>What are supplementary angles?</h3>

Two angles are called supplementary angles if the sum of their measures has a value of 180º.

The measures of the angles in this problem are given as follows:

m∠F = 90°.

m∠G = 70°.

Then the sum of the measures of this angles is given as follows:

90 + 70 = 160º.

Which is a different sum of 160º, confirming the statement that the angles are not supplementary by contradiction.

A similar problem, involving proof by contradiction and supplementary angles, is presented at brainly.com/question/28889480

#SPJ1

5 0

1 year ago

An airplane flies 1700 km in 2 1/2 hours. what is its average speed in kilometers per hour

PilotLPTM [1.2K]

Answer:

680 kilometer per hour

Step-by-step explanation:

5 0

3 years ago

The area of a rectangular wall of a barn is 85 square feet. Its length is 12 feet longer than the width. Find the length and wid

MaRussiya [10]

Answer:

Length = 17 feet, Width = 5 feet

Step-by-step explanation:

Given:

The area of a rectangular wall of a barn is 85 square feet.

Its length is 12 feet longer than the width.

Question asked:

Find the length and width of the wall of the barn.

Solution:

Let width of a rectangular wall of a barn = $x$

<u>As length is 12 feet longer than the width.</u>

Length of a rectangular wall of a barn = $12+x$

As we know:

$Area\ of\ rectangle=length\times breadth$

$85=(12+x)x\\\\85=12x+x^{2} \\$

Subtracting both sides by 85

$x^{2} +12x-85=0\\x^{2} +17x-5x-85=0\\Taking\ common\\x+(x+17)-5x(x+17)=0\\(x+17)(x-5)=0\\x+17=0, x-5=0\\x=-17,x=5$

As width can never be in negative, hence width of a rectangular wall of a barn = $x$ = 5 feet

Length of a rectangular wall of a barn = $12+x=12+5=17\ feet$

Therefore, length and width of the wall of the barn is 17 feet and 5 feet respectively.

4 0

3 years ago