MATHEMATICS HIGH SCHOOL

1cm x ¼ ??????!????????????

Answers

Answer 1
Answer:

Answer:

2.5 millimeteers

Step-by-step explanation:

Pls brainlest

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Find a4 in the sequence given by {a1=-3 and an=an-1+7

Answers

Answer:

a4 = -12

Step-by-step explanation:

D=RT for D, if T=5hours and T=65mph

Answers

D = RT

Since R = 65 and T = 5, just plug those numbers into the equation and solve.

D = 65 • 5 
D = 325 miles
325 Miles because all you do is multiple. If you mean R =5 hours, then just multiple. The units cancel out as 5hours*65m/h =325 miles.

(3 pt) Which shows the dimensions of two rectangular prisms that have volumes of 320 mm3 but different surface areas? A. 16 mm by 5 mm by 4 mm; 5 mm by 4 mm by 16 mm B. 10 mm by 4 mm by 6 mm; 6 mm by 10 mm by 4 mm C. 8 mm by 10 mm by 4 mm; 10 mm by 8 mm by 4 mm D. 8 mm by 10 mm by 4 mm; 20 mm by 8 mm by 2 mm

Answers

D. 8 mm by 10 mm by 4 mm
    20 mm by 8 mm by 2 mm

8 x 10 x 4 = 320 mm
20 x 8 x 2 = 320 mm

Jason inherited a piece of land from his great-uncle. Owners in the area claim that there is a 45% chance that the land has oil. Jason decides to test the land for oil. He buys a kit that claims to have an 80% accuracy rate of indicating oil in the soil. What is the probability that the land has oil and the test predicts that there is no oil?

Answers

So,

We are trying to find the compound probability of there BEING oil and the test predicting NO oil.

The percent chance of there actually being oil is 45%.  We can convert this into fraction form and simplify it.

45% --> (45)/(100)

(45)/(100)--\ \textgreater \ (3*3*5)/(2*2*5*5)

(3*3*5)/(2*2*5*5)--\ \textgreater \ (3*3)/(2*2*5)

(3*3)/(2*2*5)--\ \textgreater \ (9)/(20)

That is the simplified fraction form.

The kit has an 80% accuracy rate.  Since we are assuming that the land has oil, we need the probability that the kit predicts no oil.  

The probability that the kit detects no oil will be the chance that the kit is not accurate, which is 20% (100 - 80 = 20).  We can also convert this into fraction form and simplify it.

20% --> (20)/(100)

(20)/(100)--\ \textgreater \ (2)/(10)

(2)/(10)--\ \textgreater \ (1)/(5)

That is the probability of the kit not being accurate (not predicting any oil).

To find the compound probability of there being oil and the kit not predicting any oil, we simply multiply both fractions together.

(9)/(20)*(1)/(5)

(9)/(20*5)

(9)/(100)

So the probability of there BEING oil and the kit predicting NO oil is 9 in 100 chances.
probability is normally written infractin form (can also be written in percent but not as common)
it is45% that the land has oil
 44%=44/100=11/25
but the sensor is 80% acurate
 80%=80/100=8/10=4/5
so we multilly the 2 things
 11/25 times 4/5=44/125
divide to find percent44/125=0.352
round to 0.35
0.35/1=3.5/10=35/100=7/20
probability is 7/20

Part A: If (72)x = 1, what is the value of x? Explain your answer. (5 points)Part B: If (70)x = 1, what are the possible values of x? Explain your answer. (5 points)

Answers

Answer:

see step by step explanation

Step-by-step explanation:

part a: x=1/72  because there are 72 x's in the one so 1/72

part b: x=1/70 because there are 70 x in 1 so x = 1/70

Answer:

(7^2)^0

Step-by-step explanation:

The Zero rule property states that anytime you multiple an exponent by 0 it always equals 1. So, if you multiply the equation by 0 it will equal one.

Pentagon ABCDE and pentagon A'B'C'D'E' are shown on the coordinate plane below: Pentagon ABCDE and pentagon A prime B prime C prime D prime E prime on the coordinate plane with ordered pairs at A negative 4, negative 2, at B negative 6, negative 3, at C negative 5, negative 6, at D negative 2, negative 5, at E negative 2, negative 3, at A prime 3, 1, at B prime 1, 2, at C prime 2, 5, at D prime 5, 4, at E prime 5, 2 Which two transformations are applied to pentagon ABCDE to create A'B'C'D'E'? Translated according to the rule (x, y) →(x + 7, y + 1) and reflected across the x-axis Translated according to the rule (x, y) →(x + 1, y + 7) and reflected across the x-axis Translated according to the rule (x, y) →(x + 7, y + 1) and reflected across the y-axis Translated according to the rule (x, y) →(x + 1, y + 7) and reflected across the y-axis

Answers

Answer:

Translated according to the rule (x, y) →(x + 7, y + 1) and reflected across the x-axis

Step-by-step explanation:

We are given Pentagon ABCDE.

with vertices as:

A (-4,-2) , at B(-6,-3) at C (-5,-6), at D (-2,-5) at E (-2,-3)

and the pentagon A'B'C'D'E' with vertices as:

A'(3,1) , B'(1,2) , C'(2,5) , D'(5,4) and E'(5,2).

Clearly we could observe that the image is formed by the translation and reflection of the pentagon ABCDE.

First the Pentagon is translated by the rule:

(x,y) → (x+7,y+1) so that the pentagon is shifted to the fourth coordinate  and then it is reflected across the x-axis to get the transformed figure in the first coordinate plane as Pentagon A'B'C'D'E'.

Hence, the answer is:

Translated according to the rule (x, y) →(x + 7, y + 1) and reflected across the x-axis

The first choice is the correct answer.

To move from the lower left shape to the upper right shape, you first have to move 7 units to the right and then up 1 unit. (x + 7, y + 1).

Then, you have to flip it over the x-axis to get it up in the first quadrant.
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