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4 years ago

Fill in the blank. 2 x (8 + 3) = (2 x _ ) + (2 x 3)

Mathematics

2 answers:

VikaD [51]4 years ago

6 0

Answer: I believe it would be 8

fgiga [73]4 years ago

4 0

Answer:

Step-by-step explanation:

2 x (8+3)= 22

(2 x 3)=6 (2 x 8)=16

16+6=22

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A right triangle has side lengths that are consecutive interest and a perimeter of 12 feet what are the angles of the triangle

mafiozo [28]

Answer:

Step-by-step explanation:

The sides are consecutive integers and the perimeter is 12 ft.

3 ft, 4 ft, 5 ft

One angle is 90°, one angle is arcsin(3/5) ≅ 36.9°

the remaining angle is 90-36.9 = 53.1°

8 0

3 years ago

Gisele solved the quadratic equation x2 + 5x - 6 = 0 by factoring.

Nataliya [291]

For this case we have the following quadratic equation:

$x ^ 2 + 5x-6 = 0$

To factorize, we must find two numbers that when multiplied result in -6 and when added together result in +5. These numbers are: -1 and +6

$-1 + 6 = 5\\-1 * 6 = -6$

Then we factor:

$(x-1) (x + 6) = 0$

Thus, the roots are:

$x_ {1} = 1\\x_ {2} = - 6$

So, Gisele was wrong in step 2. She couldn't find the correct values to factorize.

Answer:

Gisele was wrong in step 2. She couldn't find the correct values to factorize.

3 0

3 years ago

A skyscraper with 103 floors is 1133 feet tall. Each floor is the same height. How tall is each floor

harkovskaia [24]

Hello!

Simply divide the number of floors by the height of the skyscraper to find out how tall each floor will be.

1,133 + 103 = 11

A N S W E R:

Each floor is 11 feet tall.

Have a wonderful day!

4 0

3 years ago

Read 2 more answers

Julia wrote a linear equation in standard form as –6x – 3y = 10. Arthur noticed that the equation was not written in standard fo

aleksklad [387]

Answer:

Option A - $6x +3y = -10$ is the standard form of the equation.

Step-by-step explanation:

Given : Linear equation - $-6x -3y = 10$

To convert into the standard form.

Standard form of the equation is in form Ax+By=C

So to convert this equation into the standard form we have to multiply both side of the equation by -1, so that the value for A is positive.

After multiplying by -1 the form is

$-6x\times (-1) -3y\times(-1)= 10\times(-1)$

$6x +3y = -10$ is the standard form of the equation.

Therefore, Option A is correct.

8 0

4 years ago

Read 2 more answers

Find the y intercept of -2,5 and 3,25

AlexFokin [52]

Answer:

Y-intercept = 13

Step-by-step explanation:

Since, given points are:

(-2,5) and (3,25)

Now, by slope intercept form:

y= mx + b

Here, m= slope and b= y-intercept

In order to find y-intercept, we must find slope firstly:

Since,

Slope= m= y2-y1 / x2-x1

m= 25 - 5 / 3 - (-2)

m= 20 / 5

m= 4

Put ‘m’ in slope intercept form:

y= 4x + b

Substitute either point into above equation:

25= 4(3) +b

25= 12 + b

25 - 12 = b

or b= 25 - 12

b= 13

Hence, y-intercept is 13.

6 0

4 years ago