All categories

3 years ago

Help plz for 20 points

Mathematics

1 answer:

kari74 [83]3 years ago

7 0

This is right btw .’smkwkskakakakamammamamamamamamammamamama

You might be interested in

On a given day at a local amusement park, 77% of those in attendance rode the roller coaster. There were 1,200 people at the par

Svetach [21]

924

77% of 1200 is 924

5 0

4 years ago

Help me!<br><br> Solve the equation.<br><br> −2/3x+3/7=1/2

alexira [117]

-2/3x+3/7=0.5
-2/3x+3/7=5/10
-2/3x+3/7=1/2
-42 x 2x +6 x 3=21
-28x+18=21
-28x=21-18
-28x=3
x=-3/28

5 0

4 years ago

Please help thank you

matrenka [14]

Answer:

25.9 yd

Step-by-step explanation:

$a^{2}$ + ${b^{2} }$ = $c^{2}$

$(17)^{2}$ + ${b^{2} }$ = $(31)^{2}$

289 + ${b^{2} }$ = 961

Subtract 289 on both sides

${b^{2} }$ = 672

$\sqrt{b^{2} }$ = $\sqrt{672}$

nearest tenth

b = 25.9 yd

7 0

3 years ago

Read 2 more answers

Complete solutions to 2-variable ec

Igoryamba

Answer:

x=-1/3=10/3 y=-3x+10

Step-by-step explanation:

1. distribute

y+2=-3x+12

2. subtract 2

y=-3x+10

1.subtract 12

y-10=-3x

2. divide by -3

-1/3y+10/3=x

4 0

3 years ago

The Carter Motor Company claims that its new sedan, the Libra, will average better than 31 miles per gallon in the city. Assumin

Nutka1998 [239]

Answer:

The null hypothesis $H_o : \mu = 31$

The alternative hypothesis $H_a : \mu > 31$

Step-by-step explanation:

From the question we are told that

The population mean is $\mu = 31 \ miles / gallon$

Generally

The null hypothesis is that the company's new sedan, the Libra, will have an average of $\mu = 31 \ miles / gallon$

This mathematically represented as

The null hypothesis $H_o : \mu = 31$

The alternative hypothesis is that the company's new sedan, the Libra, will have an average better than $\mu = 31 \ miles / gallon$

This mathematically represented as

The alternative hypothesis $H_a : \mu > 31$

7 0

3 years ago