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Sphinxa [80]
2 years ago
13

Select all that apply, 7th grade math

Mathematics
2 answers:
lana [24]2 years ago
7 0
All except 0. The inequality is saying that x must be less than or equal to 3 which all answers except 0 are.
Lorico [155]2 years ago
7 0

Hi!

Your answer to this question would be every option except for 0.

This is because the question is saying: x is less than or equal to negative 3.

Thus, you answer, all options except 0

Have a wonderful/night!

God bless!

You might be interested in
An architect is using the scale 10 feet = 1 inch. If the actual length of the room 65 feet, what will be the length of the scale
kolezko [41]

Answer:

6.5 inches

Step-by-step explanation:

you would divide 65 by 10 feet to get the answer in inches which is 6.5

6 0
3 years ago
Ok some one ask me what 20 + 20 - 20 is said its 20 e didnt belive me i know thats the right anser
postnew [5]

Answer:

it is because 20 + 20 is 40 and then 40 - 20 = 20

6 0
3 years ago
Are the two parabolas defined below similar or congruent or both? Justify your reasoning. Parabola 1: The parabola with a focus
Dominik [7]

Answer:

They are similar by a factor of 14

Step-by-step explanation:

From the general equation of a parabola opening up (since the directrix is on the y axis and the focus is upwards this line) the focus coordinates are:

Focus = (h,k+p) = (0,2)

So h=0 and k+p=2, for the directrix:

y = k-p=-4

solving k and p from the two equations above:

k=-1 and p=3

So for Parabola 1 the equation would be:

x^{2} =4*3(y+1)

For Parabola 2 the general equation is:

x^{2} =4*(3/2)(y)

here h=0, k=0, p=3/2 so focus is (0,3/2), directix is y=-3/2, they have the same orientation.

they are not congruent. For them to be similar it must comply:

x_{1}=k x_{2}\\y_{1}=ky_{2} => (1/12)x_{1} ^{2} -1 = k(1/6)x_{2} ^{2}

replacing x_{1} and solving for k:

(1/12)(kx_{2}) ^{2} -1 = k(1/6)x_{2} ^{2}\\ (1/12)k^{2} x_{2}^{2}-1 = k(1/6)x_{2} ^{2}\\k-12 = (12/6)=2\\k = 2+12=14\\

They are similar by a factor of 14

8 0
3 years ago
phoenix is a businessman who travels frequently he uses atms in many cities and does not write many checks he also uses direct d
liubo4ka [24]

Answer:

Bank 3

Step-by-step explanation:

No additional charges for automatic deposit and includes saving account.

3 0
3 years ago
Please show work if you do, ( and get it right) I will make you brainliest!!!
DerKrebs [107]

Answer:

The percentage increase in bird population in the second years is 4%  .

Step-by-step explanation:

Given as :

During two years, the population of birds of an island became 7 times more than before.

The the percentage increase in first year = = r_1 =40%

Let The percentage increase in second year =  r_2 = r%

So, According to question

The initial population of bird = x

The increase population of bird =7 times before = 7 x

Now,

The increase population of bird = initial population of bird × (1+ \dfrac{r_1}{100}) ×  (1+ \dfrac{r_2}{100})

Or, 7 x = x × (1+ \dfrac{40}{100}) ×  (1+ \dfrac{r}{100})

Or, \dfrac{7 x}{x} = 1.4 ×  (1+ \dfrac{r}{100})

Or, 7 = 1.4 ×  (1+ \dfrac{r}{100})

Or, \dfrac{7 }{1.4} = (1+ \dfrac{r}{100})

Or, 5 = (1+ \dfrac{r}{100})

Or, (1+ \dfrac{r}{100}) = 5

Or, \dfrac{r}{100} = 5 - 1

Or,  \dfrac{r}{100} = 4

∴ r = 4 × 100

I.e r = 400

so, The percentage increase = r% = 4

Hence The percentage increase in bird population in the second years is 4%  . Answer

3 0
3 years ago
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