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3 years ago

HELP ON QUESTION FOR TEST PLEASE!!!

Mathematics

2 answers:

Lyrx [107]3 years ago

6 0

Answer:

C it is porportinal Brainleist pls

Step-by-step explanation:

ipn [44]3 years ago

5 0

Answer:

3:5

Step-by-step explanation:

you have to think about what the numbers have in common. 30 and 18 have the number 6 in common but also the number 3. 15 and 25 have the number 5 in common.

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Find y. A. √22 B. 8 C. √42 D. 4

Elina [12.6K]

Answer:

$\Large \boxed{\mathrm{D. \ 4}}$

Step-by-step explanation:

The triangle is a right triangle.

We can use trigonometric functions to solve the problem.

tan θ = opp/adj

tan 30 = y/(4√3)

y = 4√3 tan 30

y = 4

7 0

3 years ago

Solve.<br><br> 5m + 7/2 = -2m + 5/2

crimeas [40]

5m + 7/2 = -2m + 5/2
5m + 2m = 5/2 - 7/2
7m = -1
m = -1/7 <==

8 0

4 years ago

Which graph has a slope of -3?

worty [1.4K]

Its the only one going down 3 and over 1.

8 0

3 years ago

Read 2 more answers

HELP PLEASE

kolezko [41]

Answer: 16 feet is the width and 25 is length

Step-by-step explanation:

x*(2x-7)=400

Word problem written in numerical form^^^^

Solve for x to get 16

length = 2(16)-7= 25

Check our work

16*25=400 yay

6 0

3 years ago

Prior to a special advertising campaign, 23% of all adults recognized a particular companyâs logo. At the close of the campaign

pochemuha

Answer:

The answer is "2.4049"

Step-by-step explanation:

Calculating the test of Hypothesis: $H_{0}: 23\% \ \text{off all adults which reconize the compony's logo}\\\\H_{1}: \text{more than 23\% of adult recornise the compony's logo}\\\\$

that is

$H_{0}: p=0.23\ against \ H_{1}:p>0.01\\\\Z=\frac{P-p}{\sqrt{\frac{p(1-p)}{n}}}\sim N(0,1)\\\\$

Given:

$p= 0.23\\\\ \therefore \\\\1-p=0.77\\\\n=1200\\\\ P=\frac{311}{1200}=0.2591\\\\\therefore\\\\Z= \frac{0.2591-0.23}{\sqrt{((0.23)\times \frac{(1-0.23))}{1200}}}=2.4049$

Z=2.576 tabled value. Because Z is 2.4049, that's less than Z stated, there is no indication that a null hypothesis is rejectable, which means that 23% of all adults record the logo of the Company.

8 0

3 years ago