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rjkz [21]
3 years ago
15

Five years ago a girl was one-half as old as her brother was then, and now she is three years younger than he is. What are their

present ages?
A) girl is 7; brother is 10

B) girl is 8; brother is 11

C) girl is 9; brother is 12
Mathematics
2 answers:
podryga [215]3 years ago
7 0
The girl is 8 and her brother is 11


Aloiza [94]3 years ago
3 0
The answer is B because they would have been 3 and 6.
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Three friends, Ana, Jack and Nick come together to purchase a special from a pizza place. It is a half pepperoni, half mushrooms
maw [93]

Answer:

Paula would choose the side with all of the mushrooms and half of the pepperoni. She wont choose any sausage because she doesn't like it, but luckily David likes sausage twice as much as mushroom so he's fine with getting all of the sausage and half of the pepperoni. They both equally like pepperoni so it makes sense for them to share.

4 0
3 years ago
100 POINTS AND BRAINLIST NEEED ASAPPP:Use the picture of the function below to answer the following questions, Horizontal Asympt
Leni [432]

Answer:

Concept: Graph Analysis

  1. Horizontal Asy: 1
  2. Vertical Asy: 4
  3. Domain: -inf to inf U -inft to inf
  4. X intercept: 7
  5. Y intercept: 2
  6. End behavior: Continous to real numbers, hence negative and positive infinity
  7. Give brainlist
6 0
3 years ago
P (x) is a polynomial. Here are a few values of P (x): P(-5)=-2 and P (5)=-1 What is the remainder when P(x) is divided by (x+5)
vladimir2022 [97]

Answer:

– 2

Step-by-step explanation:

From the question given above, the following data were obtained:

P(x) = polynomial

P(–5) = – 2

P(5) = –1

Remainder when P(x) is divided by

(x + 5) =?

To obtain the remainder when P(x) is divided by (x + 5), we shall apply the reminder theorem as follow:

Let (x + 5) be equal to 0

(x + 5) = 0

x + 5 = 0

Subtract 5 from both side

x + 5 – 5 = 0 – 5

x = –5

Replace x in P(x) with –5 as shown below:

P(x) = polynomial

x = – 5

P(–5)

From the question given above,

P(–5) = – 2

Therefore, when P(x) is divided by

(x + 5), the remainder is – 2.

5 0
3 years ago
For which value of m does the graph of y = 18x2 + mx + 2 have exactly one x-intercept?
SVEN [57.7K]

Answer:

The graph y = 18x2 + mx + 2= 12

So the answer is 12

5 0
2 years ago
A study involves a population of 400 tall women. This population has a mean height of 179.832 cm and a standard deviation of 12.
Fofino [41]

Answer:  0.0386

Step-by-step explanation:

Given: The population of 400 tall women has a mean height(\mu) of 179.832 cm and a standard deviation(\sigma) of 12.192 cm.

Let X be a random variable that represents the height of woman.

Sample size : n= 50

The probability that the mean for this sample group is above 182.88 will be :

P(\overline{X}>182.88)\\\\=P(\dfrac{\overline{X}-\mu}{\dfrac{\sigma}{\sqrt{n}}}>\dfrac{182.88-179.832}{\dfrac{12.192}{\sqrt{50}}})\\\\ =P(Z>1.7678)\ \ \ [Z=\dfrac{\overline{X}-\mu}{\dfrac{\sigma}{\sqrt{n}}}]\\\\=1-P(Z

Hence, Required probability =  0.0386

3 0
3 years ago
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