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3 years ago

Find the value of the following expression:

Mathematics

2 answers:

Ira Lisetskai [31]3 years ago

3 0

Answer:

Step-by-step explanation:

Kazeer [188]3 years ago

3 0

The answer is 4 I hope this helps

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Kari is saving money to buy a car. To purchase the car that she wants she will need to have at least a $5000 down payment. If Ka

ad-work [718]

Answer:

C ) She needs to save AT LEAST 20 months

Step-by-step explanation:

Half of her income each month is $250

m= months

250m ≥ 5000

m≥ 20

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2 years ago

What is the volume of a cylinder with a base radius of 2 and height <br> 6

Alik [6]

Answer:

your answer is 75.4

4 0

2 years ago

Justify each step of this inequality by stating the property that was used to get to each step.

Allushta [10]

Answer:

Step-by-step explanation:

step 1 simplified like terms -11k +3k =8k

step 2 incorrect should be -4k -20 on the left side distributive property

step 3 added 8k to each side

step 4 added 20 to each side

step 5 divided each side by 4

6 0

2 years ago

What is the common ratio between successive terms in the sequence 2,-4,-16,32,-64 .....

Anastaziya [24]

The answer is —2
Each number is multiplied by —2 to get the following number in the pattern

Hope this helps and good luck you can do thissss :)

6 0

2 years ago

I'M OFFERING 20 POINTS-

Dafna11 [192]

Answer:

Third option is correct. Scale factor 3 ; enlargement.

Step-by-step explanation:

It is given that the figure A'B'C'D' is a dilation of figure ABCD.

We know that after dilation the corresponding sides of image and preimage are in the same proportion.

The image of AD is A'D'.

From the figure it is noticed that the A(-1,2), D(-1,-1), A'(-3,6) and D'(-3,-3).

Distance formula is

$d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

$AD=\sqrt{(-1+1)^2+(-1-2)^2}=\sqrt{9}=3$

$A'D'=\sqrt{(-3+3)^2+(-3-6)^2}=\sqrt{81}=9$

Scale factor is constant which represents the relation between image and preimage.

$k=\frac{A'D'}{AD}$

$k=\frac{9}{3}$

$k=3$

Therefore the scale factor is 3.

If k>0 it means enlargement and if k<0 it means reduction. Therefore third option is correct.

3 0

3 years ago

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