2. Alayna draws 18 more stars than Pearl. Alayna draws © Assessment 37 stars. How many stars does Pearl draw? 37718 = 55 Can you use the equation to solve the problem? Choose Yes or No. 37 - 18= ? Yes O No 18 + 37 = ? Yes O No 18+ ? = 37 O Yes No ? +18= 37 O Yes O No​

Answer:

Step-by-step explanation:

h(t) = -4t² + 12t + 100

t

[tex]step - 1 : \: define[/tex]

[tex] - 4 {t}^{2} + 12t + 100 = 0[/tex]

[tex]step - 2 : \\ divide \: both \: sides \: by \: - 4[/tex]

[tex] {t}^{2} - 3t - 25 = 0[/tex]

[tex]step - 3 : \\ solve \: the \: quadratic[/tex]

[tex]formula : \\ x = \frac{ - b± \sqrt{ {b}^{2} - 4ac } }{2a} [/tex]

[tex]define \: a ,b \: and \: c \\ which \: are \: 1, - 3 \: and \: - 25 \: respectively[/tex]

[tex]t = \frac{ - ( - 3)± \sqrt{ {( - 3)}^{2} - 4.1. - 25 } }{2.1} [/tex]

[tex]t = \frac{ 3± \sqrt{ 9 + 100} }{2} [/tex]

[tex] t = \frac{3 + \sqrt{ 109 } }{2} [/tex]

[tex]t = \frac{3 - \sqrt{ 109 } }{2} [/tex]

[tex]t = 6.7 \\ t = - 3.7[/tex]

[tex]as \: we \: know \: time \: cannot \: be \: negative[/tex]

[tex] \huge \therefore \: t = 6.7[/tex]

Answer:

c

Step-by-step explanation: since i helped can i have brainlist please :D

Answer:

7

Step-by-step explanation:

first,you need to create an eqaution and so since there are two bars,so its 2x-6=8

2x-6=8

+6=+6

cancel out(2x=14)

x=7

so, your answer is 7.hope this helps.

Answer:

d. 0.852

Step-by-step explanation:

For each employee, there are only two possible outcomes. Either they will pass the test, or they will not. The probability of an employee passing the test is independent of other employees. So we use the binomial probability distribution to solve this question.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]

In which [tex]C_{n,x}[/tex] is the number of different combinations of x objects from a set of n elements, given by the following formula.

[tex]C_{n,x} = \frac{n!}{x!(n-x)!}[/tex]

And p is the probability of X happening.

The probability of a potential employee passing a training course is 86%.

This means that [tex]p = 0.86[/tex]

Sample of 15.

This means that [tex]n = 15[/tex]

What is the probability that more than 11 will pass the test?

[tex]P(X > 11) = P(X = 12) + P(X = 13) + P(X = 14) + P(X = 15)[/tex]

So

[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]

[tex]P(X = 12) = C_{15,12}.(0.86)^{12}.(0.14)^{3} = 0.204[/tex]

[tex]P(X = 13) = C_{15,13}.(0.86)^{13}.(0.14)^{2} = 0.29[/tex]

[tex]P(X = 14) = C_{15,14}.(0.86)^{14}.(0.14)^{1} = 0.254[/tex]

[tex]P(X = 15) = C_{15,15}.(0.86)^{15}.(0.14)^{0} = 0.104[/tex]

[tex]P(X > 11) = P(X = 12) + P(X = 13) + P(X = 14) + P(X = 15) = 0.204 + 0.29 + 0.254 + 0.104 = 0.852[/tex]

The correct answer is given by option d.

Answer:

28/100×3.4

0.28×3.4

0.952

Answer:

y=(4/3)x-4

Step-by-step explanation:

Answer:

I think is 3 7/9

Step-by-step explanation:

hope it helps

Answer:

fraction form: 34/9

decimal form: 3.7 (repeating)

mixed number form: 3 7/9

hope it was helpful! ^^

Answer: I think it 2,24

Step-by-step explanation:

Answer:

[tex]X =\left[\begin{array}{cc}-2 &-11\\4 &-3\end{array}\right][/tex]

Step-by-step explanation:

Given

[tex]R =\left[\begin{array}{cc}0&3\\-4&5\end{array}\right][/tex]

[tex]S =\left[\begin{array}{cc}-2&-8\\0&2\end{array}\right][/tex]

[tex]X + R = S[/tex]

Required

Find X

[tex]X + R = S[/tex]

Make X the subject

[tex]X = S - R[/tex]

Substitute values for S and R

[tex]X =\left[\begin{array}{cc}-2&-8\\0&2\end{array}\right] - \left[\begin{array}{cc}0&3\\-4&5\end{array}\right][/tex]

This can be rewritten as:

[tex]X =\left[\begin{array}{cc}-2 -0 &-8 - 3\\0 - (-4) &2 - 5\end{array}\right][/tex]

[tex]X =\left[\begin{array}{cc}-2 &-11\\4 &-3\end{array}\right][/tex]

Answer:

In the fifth month the contestant must lose 6 pounds of weight.

Step-by-step explanation:

Given that the contestant wants to lose an average of 8 pounds of weight per month for 5 months, taking into account that in the first 4 months of the contest he lost 12, 9, 5 and 8 pounds respectively, to determine how much weight he should lose in the fifth month the following calculation must be performed:

8 x 5 = 40 (pounds to lose)

12 + 9 + 5 + 8 = 34 (pounds lost)

40 - 34 = 6

Therefore, in the fifth month the contestant must lose 6 pounds of weight.

The values in the missing places are 26, 52, 14, 40 and 50

A table drawn up to show the distribution of the frequency of occurrence of a given characteristic according to some specified set of class intervals.

Given is a frequency table with some missing places,

For every missing places, we just need to add or subtract from the total.

Types of food                                             Age

                                             child          adult (18+)              Total

Fruit                                       26                  26                        52

Vegetable                              14                  24                        38

Total                                       40                  50                       90

First missing place = 50-24 = 26

Second missing place = 26+26 = 52

Third missing place = 38-24 = 14

Fourth missing place = 26+14 = 40

Fifth missing place = 90-40 = 50

Hence, The values in the missing places are 26, 52, 14, 40 and 50

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Answer:

$5

Step-by-step explanation:

48/12=4

1.25x4=5

Or you could set it up as a proportion

12/1.25=48/x

Answer: -33

Step-by-step explanation: pattern is +2

Answer:

-33

Step-by-step explanation:

The sequence for this equation is plus two for every number so all you have to do its -35+2 which is -33

Answer:

Which circumstance led the Confederacy to think that it could purchase weaponry and supplies to use in the Civil War?

A.  

increased taxation on Southern states

B.  

support from Britain and France

C.  

an abundance of cotton in the Southern states

D.  

profits from the large number of industries

Step-by-step explanation:

Answer:

[tex]x=\sqrt{10}[/tex]

Step-by-step explanation:

The given equation is :

[tex]5-2x^2=-15[/tex]

We need to solve it using inverse operations.

Subtract 5 from both sides of the equation.

[tex]5-2x^2-5=-15-5\\\\-2x^2=-20\\\\2x^2=20\\\\x^2=10\\\\x=\sqrt{10}[/tex]

So, the solution of the given equation is [tex]x=\sqrt{10}[/tex].

Answer: should be 3.5

Step-by-step explanation:

Answer:3.5

Step-by-step explanation:

Answer:

81

Step-by-step explanation:

When two variables have direct variation, as one variable increases the other variable increases or as one variable decrease, the other decrease. While for an inverse variation, as one variable increase, the other variable decrease or as one variable decrease, the other variable increase.

Given that a ∝ 1/b. Also b ∝ c².

Hence if k is the constant of proportionality, we have:

a ∝ 1 / c²

a = k / c²

When a = 1, c = 3, hence:

1 = k / 3²

k = 1 * 3²

k = 9

Therefore:

a = 9 / c²

When c = 1/3

a = 9 / (1/3)²

a = 9 / (1² / 3²)

a = 9 / (1 / 9)

a = 9 * 9

a  = 81

Answer:

I am 100% Sure it's A) Suppose that Horace wanted to buy 2 clay pots and 5 plastic pots. Would he be able to get all the pots in one shipment? Explain how you determined your answer.

I think he would be able to get all the pots in 1 shipment because he spent too much time on making money and now he has enough for this.

Step-by-step explanation:

Therefore,he will get all the pots in one shipment.

What is the simplification?

Simplification is reducing the expression/fraction/problem in a simpler form. It makes the problem easy with calculations and solving.

Here given that,

A gardening company sells clay flower pots and plastic flower pots. There must be at least 2 pots in each shipment, but there cannot be more than 8 in a shipment.

Additionally, the shipment must weigh less than [tex]100[/tex] pounds. Each shipment container weighs [tex]20[/tex] pounds, and there is one pound of packing material.

A clay flower pot weighs [tex]15[/tex] pounds, whereas a plastic flower pot weighs [tex]7.5[/tex] pounds.

A) Suppose that Horace wanted to buy [tex]2[/tex] clay pots and [tex]5[/tex] plastic pots.

So as per this information he would be able to get all the pots in one shipment because he is spending too much time on making money and now he has enough for this.

Hence, he will get all the pots in one shipment.

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Answer:

Factor: 2(x+2y)

Step-by-step explanation:

I don’t know how you want it solve but I factor it.

If you don’t want it factor text me back on how you want it to be answer.

Answer:

2x+4y

Step-by-step explanation:

There are no like terms. you can't possibly add this.

Answer:

Step-by-step explanation:

6) n + 13

7) 3n

8) n - 4

9) n + 5

10) 7 *n =  7n

11) n - 14

12) [tex]\frac{n}{5}[/tex]

Answer:

12 male teachers

Step-by-step explanation:

If the ratio is 3:4, and the number of female teachers is 16, then the number of male teachers must be 12. This can be confirmed by multiplying both 3 and 4 by 4, or 12/16 = 3/4.

Answer:

12 male teachers.

Step-by-step explanation:

if there is 16 females and the ratio is 3:4 it would be 12 due to 4 times 4 being 16. Meaning that i would do 3 times 4 which would result in having 12 male teachers.

the answer is A -2/7

Answer:

0.27 ; 0.30 ; 0.20 ; 0.21

Step-by-step explanation:

Given that :

P(A beats B) = 0.5

P(A beats C) = 0.6

P(B beats C) = 0.9

Since the outcomes are independent :

A.) probability that A wins both her matches and that B beats C

P(A beats B) * P(A beats C) * P(B beats C)

0.5 * 0.6 * 0.9 = 0.27

B.) probability that A wins both her matches

P(A beats B) * P(A beats C)

0.5 * 0.6 = 0.3

C.) probability that A loses both her matches?

(1 - P(A beats B)) * (1 - P(A beats C)

(1 - 0.5) * (1 - 0.6)

0.5 * 0.4 = 0.20

D.) probability that each person wins one match

Either (A beats B), (B beats C). (C beats A) OR (A beats C), (C beats B), (B beats A)

Hence;

(0.5 * 0.9 * (1 - 0.6)) + (0.6 * (1 - 0.9) * (1 - 0.5)) = 0.21

Add 4 and 4 to both sides.

2x=9 42x=9+4

Simplify 9+4 to 13 2 x = 13 2x=13 3

Divide both sides by 2.

Final Result: x= 13/2

Hi there!

[tex]9-4=5[/tex]

[tex]5[/tex]÷[tex]2=2.5[/tex]

x=2.5

Answer:

Step-by-step explanation: 2 + 2 = 4