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PilotLPTM [1.2K]

3 years ago

6

A researcher wishes to examine the effects of a new reading program on

1 answer:

Nady [450]3 years ago

3 0

Answer:

a control group is not used

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-2(2x+3)=-(x+1)-2 whats x

AysviL [449]

Answer:

x=-1

Step-by-step explanation:

4 0

3 years ago

(x+5)(√ 1-x)<br> what is the product of this composite function?

Radda [10]

Answer:

$x\sqrt{1-x}+5\sqrt{1-x}$

Step-by-step explanation:

$(x+5)(\sqrt{1-x} )\\\\=\left(\sqrt{1-x}\right)\left(x+5\right)\\\\\mathrm{Apply\:the\:distributive\:law}:\quad \:a\left(b+c\right)=ab+ac\\\\a=\left(\sqrt{1-x}\right),\:b=x,\:c=5\\\\=\left(\sqrt{1-x}\right)x+\left(\sqrt{1-x}\right)\times\:5\\\\=x\left(\sqrt{1-x}\right)+5\left(\sqrt{1-x}\right)\\\\\mathrm{Remove\:parentheses}:\quad \left(a\right)=a\\\\=x\sqrt{1-x}+5\sqrt{1-x}$

6 0

3 years ago

Find the length and surface area.<br><br>Width = 2<br><br>Height = 12<br><br>Volume = 240

blondinia [14]

Answer:

Length: 10

Surface Area: 20

Step-by-step explanation:

Length:

2*12=24

240/24=10

Surface Area:

2*10=20

6 0

3 years ago

If m= 8, then evaluate 2(m+3)/11

Ymorist [56]

Answer:

2

Step-by-step explanation:

Substitute m=8 into the equation

Firstly deal with the bracket

then multiplication

then division

2(11)/11

8 0

3 years ago

Read 2 more answers

2. For a particular model of a car, a dealer offers 3 sizes of engines, 2 types of stereos, 18 body

Gnesinka [82]

The given details follow the product rule. The different model of the car available are 756.

Given that:

$Engines = 3$

$Stereos = 2$

$Body=18$

$Color = 7$

The different possibility is calculated using the following product rule:

$Total =Engines \times Stereos \times Body \times Color$

So, we have:

$Total = 3\times 2\times 18 \times 7$

$Total = 756$

Hence, there are 756 different models available.

Read more about product rules at:

brainly.com/question/3944602

3 0

3 years ago