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koban [17]
3 years ago
6

Rocco is doing an internship with a local carpenter. He is making $11.50 per hour.

Mathematics
1 answer:
SSSSS [86.1K]3 years ago
4 0

Answer:

1. 76.5 days     2. $57.69 per day

Step-by-step explanation:

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Adam uses coconut milk for the dessert. The coconut milk is in a can but he doesn’t know how much the can holds. The can is 12 c
BartSMP [9]
Given:
Diameter = 8 cm
Height = 12 cm
Value of pi = 3

radius is 1/2 of the diameter. r = 8cm/2 = 4cm
Volume = π r² h
V = 3 * (4cm)² * 12 cm
V = 3 * 16cm² * 12 cm
V = 576cm³

Volume of the can is 576cm³. It is also the amount of milk inside the can.<span><span>COMMENTS </span> <span>REPORT</span></span>
4 0
3 years ago
A teacher orders pizza for her classes. Each pizza costs 16.72. The delivery charge for the entire order is 9.00. The total cost
trapecia [35]

16.72p + 9 ≤ 133

16.2p ≤ 124

p ≤ 124 / 16.2

the teacher can order at most

7 whole pizzas

4 0
2 years ago
Solve for m in the equation y=Mx+b
FinnZ [79.3K]

Answer:

Slope

Step-by-step explanation:

In this equation M stands for slope

7 0
3 years ago
Ionizing radiation is being given increasing attention as a method for preserving horticultural products. A study reports that 1
kolbaska11 [484]

Answer:

Yes, there is  enough evidence to support the claim that ionizing radiation is beneficial in terms of marketability.

Step-by-step explanation:

This is a hypothesis test for the difference between proportions.

The claim is that ionizing radiation is beneficial in terms of marketability.

Then, the null and alternative hypothesis are:

H_0: \pi_1-\pi_2=0\\\\H_a:\pi_1-\pi_2> 0

Being π1: the true proportion of treated bulbs that can be comercialized after 240 days, and π2: the true proportion of untreated bulbs that can be comercialized after 240 days.

The significance level is 0.05.

The sample 1, of size n1=180 has a proportion of p1=0.85.

p_1=X_1/n_1=153/180=0.85

The sample 2, of size n2=180 has a proportion of p2=0.65.

p_2=X_2/n_2=117/180=0.65

The difference between proportions is (p1-p2)=0.2.

p_d=p_1-p_2=0.85-0.65=0.2

The pooled proportion, needed to calculate the standard error, is:

p=\dfrac{X_1+X_2}{n_1+n_2}=\dfrac{153+117}{180+180}=\dfrac{270}{360}=0.75

The estimated standard error of the difference between means is computed using the formula:

s_{p1-p2}=\sqrt{\dfrac{p(1-p)}{n_1}+\dfrac{p(1-p)}{n_2}}=\sqrt{\dfrac{0.75*0.25}{180}+\dfrac{0.75*0.25}{180}}\\\\\\s_{M_d}=\sqrt{0.001+0.001}=\sqrt{0.002}=0.0456

Then, we can calculate the z-statistic as:

z=\dfrac{p_d-(\pi_1-\pi_2)}{s_{p1-p2}}=\dfrac{0.2-0}{0.0456}=\dfrac{0.2}{0.0456}=4.382

This test is a right-tailed test, so the P-value for this test is calculated as (using a z-table):

P-value=P(t>4.382)=0.000008

As the P-value (0.000008) is smaller than the significance level (0.05), the effect is significant.

The null hypothesis is rejected.

There is  enough evidence to support the claim that ionizing radiation is beneficial in terms of marketability.

7 0
3 years ago
What is the slope of the line perpendicular to the line that passes through (4,7) and (8,9)?
Strike441 [17]
Ima try and find it for you
4 0
2 years ago
Read 2 more answers
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