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2 years ago

What is the measure of ZABD?

Mathematics

2 answers:

pshichka [43]2 years ago

7 0

39° because a right angle adds up to 90°

Alex787 [66]2 years ago

4 0

Answer:

Step-by-step explanation:

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A nest of ants has been growing exponentially in such a way that its population, P, as a function of w weeks is given by P(w)=24

Hunter-Best [27]

Answer:

0.9%

Step-by-step explanation:

Given that:

A nest of ant is represented by the exponential growth function :

P(w)=24,000(1.063)^w

Where w = number of weeks

Recall :

Growth function is generally represented as :

P(t) = A(1 + r)^t

Where ; A is the initial population figure; r = growth rate and t = time

Hence, the growth rate per week of the function given is :

(1 + r) = 1.063

r = 1.063 - 1

r = 0.063

Number of days in a week = 7

Hence, growth rate per day = r /7

0.063 / 7

= 0.009

(0.009 * 100%) = 0.9%

8 0

3 years ago

wally has 84$. he used two seventh of his money to buy a new pair of running shoes. how much did wally spend on his new shoes?

Novosadov [1.4K]

Answer:

$24

Step-by-step explanation:

What you do is you just times 84 x 2/7 to get your answer.

84 x 2/7=$24 is your answer.

7 0

3 years ago

Read 2 more answers

The class sizes of elementary school classes in a public school district are normally distributed with an unknown population mea

weqwewe [10]

Answer: $(17.14,\ 22.86)$

Step-by-step explanation:

The confidence interval estimate for the population mean is given by :-

$\overline{x}\pm ME$ , where $\overline{x}$ is the sample mean and ME is the margin of error.

Given : Sample mean: $\overline{x}=20$

The margin of error for a 98% confidence interval estimate for the population mean using the Student's t-distribution : $ME=2.86$

Now, the confidence interval estimate for the population mean will be :-

$20\pm2.86=(20-2.86,\ 20+2.86)=(17.14,\ 22.86)$

Hence, the 98% confidence interval estimate for the population mean using the Student's t-distribution = $(17.14,\ 22.86)$

8 0

3 years ago

40% of the memberships sold by Gym A were gold memberships.

Aneli [31]

Answer:

a) If both gyms sold 80 total memberships, Gym A sold 12 more gold membership.

Step-by-step explanation:

Here is the complete question: 40% of the memberships sold by Gym A were gold memberships. 25% of the memberships sold by Gym B were gold memberships.

Which statement must be true?

a) If both gyms sold 80 total memberships, Gym A sold 12 more gold membership.

b) If both gyms sold the same number of memberships, Gym A sold 15 more gold membership.

c) Gym A sold more gold membership than Gym A did.

d) If Gym B sold 50 membership, 25 would be gold memberships.

Given: Gym A have sold 40% gold membership of total membership.

Gym B have sold 25% gold membership of total membership.

Lets take option A first to find if it is true statement.

As per option A, There are total number of membership is 80.

∵ Gym A has sold 40% gold membership.

∴ Gym A gold membership= $40\% \times 80$

⇒ Gym A gold membership= $\frac{40}{100} \times 80= 32 member.$

∴ Gym A gold membership= 32.

Now, Gym B

∵ Gym B has sold 25% gold membership.

∴ Gym B gold membership= $25\% \times 80$

⇒ Gym B gold membership= $\frac{25}{100} \times 80=20 member.$

∴ Gym B gold membership= 20.

Next finding difference gold membership for Gym A and Gym B

$32-20= 12 \ membership$

Hence, we can say option A is correct as Gym A have sold 12 more gold membership, if total number of membership sold by both Gym is 80.

8 0

3 years ago

Connor is splitting of ice cream with members of the team. If the ice cream is split evenly, how many will each person get? Ex

saveliy_v [14]

Answer:

each person gets 1/4

Step-by-step explanation:

6 0

2 years ago