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Andrei [34K]
2 years ago
11

The length of a rectangle is four times its width. The perimeter of the rectangle is at most 130 cm.

Mathematics
1 answer:
dalvyx [7]2 years ago
7 0
<span>2w+2⋅(4w)≤130 Is the Answer Fam...............</span>
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2. Which of the following is the equation of a circle with the radius of 1.5 and its center at (-3,2)?
Iteru [2.4K]
(x - xo)^2 + (y - yo)^2 = r^2

[x - (-3)]^2 + [y - (2)]^2 = (1.5)^2

(x+3)^2 + (y-2)^2 = 2.25

Answer: option C

8 0
3 years ago
Now we are testing to see whether taking a vitamin supplement each day has significant health benefits. There are no (known) har
ZanzabumX [31]

Answer:

Concluding that people should take vitamin supplement each day when they don't help.            

Step-by-step explanation:

We are given the following in the question:

Hypothesis:

Taking a vitamin supplement each day has significant health benefits and does not have any harmful side effects.

Null hypothesis:

Taking a vitamin supplement each day does not have have significant health benefits.

Alternate hypothesis:

Taking a vitamin supplement each day have have significant health benefits.

Type I error:

  • It the error of rejecting the a true null hypothesis.

So error I for this situation would be concluding that people should take vitamin supplement each day when they don't help.

3 0
2 years ago
How much principle, to the nearest dollar, should you invest at 4 percent in order to have $3000 for a vacation to Europe in 3 y
KiRa [710]

Answer:

Principle should be $2,667

Step-by-step explanation:

We need $3000 for a vacation to Europe in 3 years.

Using amount formula,

A=P(1+r)^t

Where, P is principle (P=?)

A is amount (A=3000)

r is rate of interest (r=0.04)

t is time (t=3)

Substitute the values into formula and solve for P

3000=P(1+0.04)^3

3000=P(1.04)^3

P=\frac{3000}{1.04^3}

P=2666.98

P\approx \$2667

Hence, Principle should be $2,667

4 0
3 years ago
can sumone heeeeeeelp meee with thiiiis its homework and im about to give uup like this just question 1 and im already tired ple
Fynjy0 [20]
Answer: C— 9 m

Steps:
a^2 + b^2 = c^2
12^2 + b^2 = 15^2
144 + b^2 = 225
b^2 = 81
b = 9
4 0
3 years ago
Read 2 more answers
A kitchen measures 3.75 meters by 4.2 meters.
dalvyx [7]

Answer:

a. A_{(kitchen)}=15.75\ m^2

b. A_{(total)}=39.375\ m^2

Step-by-step explanation:

The formula for calculate the area of a rectangle is:

A=lw

Where "l" is the lenght and "w" is the width

a. We know that the kitchen measures 3.75 meters by 4.2 meters; then we can say that:

l=3.75\ m\\\\w=4.2\ m

Therefore, substituting these values into the formula, we get that the area of the kitchen is:

A_{(kitchen)}=(3.75\ m)(4.2\ m)=15.75\ m^2

b. The area of the living room is one and a half times (1.5 times) that of the kitchen, this is:

A_{(living)}=(1.5)(15.75\ m)=23.625\ m^2

Therefore, the total of the living room and the kitchen is:

A_{(total)}=15.75\ m^2+23.625\ m^2=39.375\ m^2

3 0
3 years ago
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