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3 years ago

Select the expressions whose value is 4. (-2)² |- 4| - 4÷2 2(-2)

Mathematics

1 answer:

Dmitry [639]3 years ago

7 0

The first and the second one.

-2*-2=4

Absolute value of -4 is 4

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The type of flower shown in the table make up an arrangement what percent of the flowers in the range that are roses

sdas [7]

Can you show the table please?

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4 years ago

Simplify (x+7)(x+5)<br> A x^2+12x+35<br> B x^2+35<br> C x^2+12x+12<br> D x^2+12x+2

Readme [11.4K]

I think the answer is A

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3 years ago

A model of a car has a scale of 3 cm : 2 m. The length of the actual hood of the car is 1 m. What is the length of the hood of t

Lubov Fominskaja [6]

So basically 3cm is the model and 2 m is the actual size. So the hood is 1m so it is half of 2m which means the answer to the question is 1.5cm

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3 years ago

Solve the equation for x 2/3x-1/9x + 5 = 20

Nady [450]

$\bold{Answer}$

$\boxed{\bold{X \ = \ 27}}$

$\bold{Explanation}$

$\bold{Solve: \ \frac{2}{3}x-\frac{1}{9}x+5=20}$

$\bold{--------------------------}$

$\bold{Subtract \ 5 \ From \ Both \ Sides}$

$\bold{\frac{2}{3}x-\frac{1}{9}x+5-5=20-5}$

$\bold{Simplify}$

$\bold{\frac{2}{3}x-\frac{1}{9}x=15}$

$\bold{Multiply \ By \ LCM: \ LCM \ = \ 9}$

$\bold{\frac{2}{3}x\cdot \:9-\frac{1}{9}x\cdot \:9=15\cdot \:9}$

$\bold{Simplify}$

$\bold{6x-x=135}$

$\bold{5x=135}$

$\bold{Divide \ Both \ Sides \ By \ 5}$

$\bold{\frac{5x}{5}=\frac{135}{5}}$

$\bold{Simplify}$

$\bold{X \ = \ 27}$

$\boxed{\bold{Eclipsed}}$

8 0

3 years ago

Read 2 more answers

What is the answers to number 27

serg [7]

The speed of plane 1 will be 300 miles/sec and that of plane 2 will be 600 miles/sec.

We have two planes flying in opposite directions to each other.

We have to determine how fast was the each plane flying.

<h3>What is the formula to calculate the distance covered by the object moving with speed - x m/s in time - t s ?</h3>

The formula to calculate the distance travelled will be -

distance = speed x time = ( $x$ t) meters

According to the question -

Let us assume that the speed of plane 1 = v miles/sec.

Then, the speed of plane 2 will be = 2v miles/sec.

Distance covered by plane 1 in 3 hours will be = 3v miles.

Distance covered by plane 2 in 3 hours will be = 3 x (2v) miles = 6v miles.

Since they are 2700 miles apart after three hours, therefore -

3v + 6v = 2700

9v = 2700

v = 300 miles/sec

Hence, the speed of plane 1 will be 300 miles/sec and that of plane 2 will be = 2v = 2 x 300 = 600 miles/sec.

To solve more questions on Algebraic word problems , visit the link below -

brainly.com/question/21334880

#SPJ1

5 0

1 year ago