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3 years ago

Here is my question in a pic

Mathematics

2 answers:

wlad13 [49]3 years ago

8 0

Answer:

Step-by-step explanation:

because she said half of X so 1/2x and then +3 to that half

tatiyna3 years ago

6 0

Answer:

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A divided by 9= -4 plss solve

iragen [17]

Answer:

<h3> $\boxed{ \bold{ \sf{ \huge{ \boxed{ a = - 36}}}}}$ </h3>

Step-by-step explanation:

$\sf{ \frac{a}{9} = - 4}$

Apply cross product property

⇒ $\sf{a = - 4 \times 9}$

Multiply the numbers

⇒ $\sf{a = - 36}$

Hope I helped!

Best regards!!

8 0

3 years ago

The hypotenuse of a right angled triangle is 2√13 cm . If the smaller side is increased by 2 cm and the larger side is increased

White raven [17]

Statement:

The hypotenuse of a right angled triangle is 2√13 cm. If the smaller side is increased by 2 cm and the larger side is increased by 3 cm, the new hypotenuse will be √117 cm.

To find out:

The length of the larger side of the right angled triangle.

Solution:

Let us consider x as the smaller side and y as the larger side.

Then, in the right angled triangle,

x² + y² = (2√13)² ...(I) [By Pythagoras Theorem]

Now, if the smaller side is increased by 2 cm, then the smaller side will be (x + 2).

And if the larger side is increased by 3 cm, then the larger side will be (y + 3).

Then, in the new right angled triangle,

(x + 2)² + (y + 3)² = (√117)² [By Pythagoras Theorem]

or, x² + 2 × 2 × x + 2² + y² + 2 × 3 × y + 3² = (√117)²

or, x² + 4x + 4 + y² + 6y + 9 = (√117)²

or, x² + y² + 4x + 6y + 13 = (√117)²

Now, put the value of x² + y² from equation (I),

or, (2√13)² + 4x + 6y + 13 = (√117)²

or, (2 × 2 × √13 × √13) + 4x + 6y + 13 = (√117 × √117)

or, 52 + 4x + 6y + 13 = 117

or, 4x + 6y = 117 - 52 - 13

or, 4x + 6y = 52

or, 4x = 52 - 6y

or, x = $\frac {(52 - 6y)}{4}$ ...(II)

Now, put the value of x of equation (II) in (I),

x² + y² = (2√13)²

or, $\frac {(2704-624y +36y²)}{16}$ + y² = 52

or, $\frac {(2704-624y +36y² + 16y²)}{16}$ = 52

or, 52y²-624y + 2704 = 52 × 16

or, 52y² - 624y + 2704 - 832 = 0

or, 52y² - 624y + 1872 = 0

or, 52(y² - 12y + 36) = 0

or, y²-12y +36 = 0 ÷ 52

or, y²-12y +36 = 0

or, (y)² - 2 × 6 × y + (6)² = 0

or, (y - 6)² = 0

or, y - 6=0

or, y = 6

We have taken y as the length of the larger side of the right angled triangle.

So, the length of the larger side is 6 cm.

Answer:

6 cm

Hope you could understand.

If you have any query, feel free to ask.

6 0

2 years ago

Sisqo score 10 points in the first half of the game. In the second half he made four shots, all three pointers. Which of the fol

olga_2 [115]

Answer:

You didn't provided the answer choices, but the answer is he scored 22 points in total.

Step-by-step explanation:

5 0

3 years ago

A ship travels 62.5 km in 1st hour of sailing. Starting from 2nd hour, the distance travelled per hour is x% of that in the prec

Bas_tet [7]

Speed of the ship in the second hour = (62.5 * x ) / 100 kph.

In third hour it is [(62 * x) / 100 ] * x/100]

is 4th hour its is the above * x/100 again so we can now form the equation

62.5x x x
------- * ---- * ---- = 32
100 100 100

62,5 x^3 = 32,000,000
x^3 = 512,000
x = 80 <----- Answer to (a)

(b) Ship travels 62.5 in first hour then this falls by a common ratio of 0.8 each hour so we have a geometric sequence

Dist travelled in 6 hours = a1 1 - r^n
-------- = 62.5* (1 - 0.8^6) / 1 -0.8 = 230.56

1 - r

Answer is 230.56 km

5 0

3 years ago

If nico spends $5.76 on tomatoes,how many pounds did he purchase?

tia_tia [17]

The amount of in pound of tomatoes purchased is $\frac{5.76}{p}$

To obtain the number of pounds of tomatoes purchased :

Let the price per pound of tomato = p

The Number of tomatoes purchased equals :

Total amount spent ÷ price per pound

Therefore, the Number of tomatoes purchased will be :

5.76 ÷ p

The Number of pounds of tomatoes purchased = $\frac{5.76}{p}$

Learn more :brainly.com/question/18109354

4 0

2 years ago

Here is my question in a pic​

Here is my question in a pic