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Minchanka [31]
3 years ago
7

Given that a = 2,5= 2 and C = -1 work out 2b – 3ac

Mathematics
1 answer:
poizon [28]3 years ago
6 0

Step-by-step explanation:

2b-3ac

=2×2-3×2×(-1)

= 4+6

=10

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2x+10=6(x-1) What does x equal
Gennadij [26K]

Answer:

x=4

Step-by-step explanation:

2x+10=6(x-1)

2x+10=6x-6

10=6x-2x-6

10=4x-6

16=4x

4=x

4 0
3 years ago
An animal shelter has cats and dogs. The ratio of cats to dogs is 3 to 5. If there are 15 dogs, how many cats are there?
MAXImum [283]
Nine is the correct answer
4 0
3 years ago
Read 2 more answers
The following scatterplot shows the percentage of the vote a candidate received in the 2016 senatorial elections
neonofarm [45]

The critical values corresponding to a 0.01 significance level used to test the null hypothesis of ρs = 0 is (a) -0.881 and 0.881

<h3>How to determine the critical values corresponding to a 0.01 significance level?</h3>

The scatter plot of the election is added as an attachment

From the scatter plot, we have the following highlights

  • Number of paired observations, n = 8
  • Significance level = 0.01

Start by calculating the degrees of freedom (df) using

df =n - 2

Substitute the known values in the above equation

df = 8 - 2

Evaluate the difference

df = 6

Using the critical value table;

At a degree of freedom of 6 and significance level of 0.01, the critical value is

z = 0.834

From the list of given options, 0.834 is between  -0.881 and 0.881

Hence, the critical values corresponding to a 0.01 significance level used to test the null hypothesis of ρs = 0 is (a) -0.881 and 0.881

Read more about null hypothesis at

brainly.com/question/14016208

#SPJ1

3 0
1 year ago
What is 1/2 multiplied -3/4
Simora [160]

Answer:

<h3>the answer is -3/8</h3>

hope this helps

8 0
3 years ago
What is the slope of the equation-3=-4(x-5)
scZoUnD [109]
You need to simplify it first. 
-3=-4(x-5)
Use distribution
-3=-4x+20
y=mx+b
m=slope
your slope is -4 :)
5 0
3 years ago
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