3 years ago

Question 2 of 5

Mathematics

1 answer:

denpristay [2]3 years ago

3 0

The answer is 5.625 hope it helps

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X- 18 = 0<br> Number of real number solutions

Neko [114]

Answer:

X= 18

Step-by-step explanation:

18-18=0

x=18

5 0

3 years ago

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Solve for all values of x by factoring. x^2-25= x 2 â’25= 0

lozanna [386]

Answer:

x = ± 5

Step-by-step explanation:

x² - 25 = 0 ( add 25 to both sides )

x² = 25 ( take square root of both sides )

x = ± $\sqrt{25}$ = ± 5

That is x = - 5, x = 5

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The hypotenuse of a 45-45-90 triangle has a length of 10 units. what is the length of one of its legs?

Blizzard [7]

the length of a leg on a 45-45-90 triangle given the hypotenuse is half the length of the hypotenuse times sqrt(2)

hypotenuse = 10

10/2 =5

so the answer should be 5sqrt(2), which I don't see as a choice

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3 years ago

Students in a middle school must choose to take either Band or Chorus. In a given academic year, 60% of the pupils choose Band a

grigory [225]

Pupils that chose Band: 60%
Pupils that chose Chorus: 40%
Boys in band: 70%
Boys in chorus: 30%
Probability of choosing boy = Probability of boy in band + Probability of boy in chorus
P = 0.6 x 0.7 + 0.4 x 0.3
P = 0.54
The answer is D.

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3 years ago

220 students were asked if they liked chocolate or vanilla ice cream. 140 said they liked chocolate and 120 said they liked vani

Flura [38]

Answer: D. 40

Step-by-step explanation:

Given: Number of students liked vanilla or chocolate ice cream = $n(V\cup C)=220$

Number of students liked chocolate = $n(C)=140$

Number of students liked vanilla= $n(V)=120$

Now, Number of students liked vanilla and chocolate ice cream is given by :-

$n(V\cap C)=n(C)+n(V)-n(V\cup C)\\\\\Rightarrown(V\cap C)=140+120-220\\\\\Rightarrown(V\cap C)=260-220\\\\\Rightarrown(V\cap C)=40$

Number of students liked vanilla and chocolate ice cream= 40

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3 years ago