All categories

3 years ago

Can someone explain this I'm so confused

Mathematics

1 answer:

umka2103 [35]3 years ago

3 0

For number one do 7\2 • -4/7

You might be interested in

Suppose you have $2,000 to invest. In 4 years, you would like to purchase a new car and want a down payment of $3,500. What inte

Blababa [14]

Answer:

Rate = 14.07%

Step-by-step explanation:

$A= P(1+\frac{r}{n})^{nt}$

A= 3500

P= 2000

n = 12

t = 4

$3500= 2000(1+\frac{r}{12})^{4 \times 12}\\\\\frac{3500}{2000} = (1+\frac{r}{12})^{48}\\\\\frac{7}{4} = (1+\frac{r}{12})^{48}\\\\1.75 = (1+\frac{r}{12})^{48}\\\\\sqrt[48]{1.75} = (1+\frac{r}{12})\\\\\sqrt[48]{1.75}-1 = \frac{r}{12}\\\\0.01172688 = \frac{r}{12}\\\\r = 0.01172688 \times 12 = 0.14072267\\\\r \% = 14.07%$

8 0

3 years ago

This chart shows the number of books that eight students read last year. Which of the following statements is true about this da

RideAnS [48]

Answer:

I beleve there is not enough info because there isnt a chart....

Step-by-step explanation:

8 0

3 years ago

This is factoring quadratics with a leading coefficient: 5p to the 2 power - 52p + 20

Mashutka [201]

Answer:

(-5p + 2)(-p + 10)

Step-by-step explanation:

$5p^{2}$ -52p + 20

(-5p + 2)(-p + 10)

You can double check this by using the distributive property..

-5p * -p = -5p^2

2*-p = -2p

10*-5p = -50p

10*2 = 20

-5p^2 + -2p + -50p + 20

Now we combine like terms and simplify

-5p^2 -52p + 20

So, we are correct

4 0

3 years ago

Suppose a group of research proposals was evaluated by a panel of experts to decide whether or not they were worthy of funding.

Ksivusya [100]

Answer:

(a) 0.12 (b) 0.32 (c) 0.56

Step-by-step explanation:

The sample outcomes are Funded or Unfunded. Total sample space is given by:

2²= 4

Fund = F

Unfunded = U

P (F) ist panel = 0.2

P (U) ist panel = 0.8

P (F) 2nd panel = 0.6

P (U) 2nd panel = 0.4

TOTAL SAMPLE SPACE

Ist Panel Second Panel

F F

F U

U F

U U

(a) Probability of both panel approval = P (FF)

= 0.2 x 0.6

= 0.12

(b) Probability of approval disapproved by both panels = P (UU)

= 0.8 x 0.4

= 0.32

(c) Probability of a worthy disapproval by one panel = P(FU) + P(UF)

= (0.2 x 0.4) +(0.8 x 0.6)

= 0.08 + 0.48

= 0.56

6 0

4 years ago

Please help me on 9 & 10 ! Will give you brainliest

vlabodo [156]

9. The decrease in population for Lakeside 5,500.

You can find this by taking the new amount and subtracting the original amount. This will give you the net change.

new - old = net change

45,800 - 51,300 = net change

-5,500 = net change

10. The percent increase for Riverview is +51%.

You can find that by looking at the formula for percent change.

$\frac{new - old}{old}$

$\frac{63000 - 41700}{41700}$

$\frac{21300}{41700}$

51%

5 0

3 years ago