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2 years ago

Select all the correct answers. Which equations have infinitely many solutions?

Mathematics

2 answers:

777dan777 [17]2 years ago

4 0

I think it is b and d

guajiro [1.7K]2 years ago

4 0

Answer:

2,4

Step-by-step explanation

all real numbers are solutions, therefore it has infinite many solutions

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How many hours must you run if you want to run 27 km at a rate of 9 km/h? (Apex)

Nuetrik [128]

Answer:

Step-by-step explanation:

27 km

9 km every hour

so 27/9=3

7 0

3 years ago

Please answer this correct answer now fast

lutik1710 [3]

Answer:

WX = 8 mm

Step-by-step explanation:

To be able to solve for WX, we need to first find the size of angle $\angle z$ .

We use the law of sines in the blue triangle to do such:

$\frac{sin(z)}{11} =\frac{sin(133)}{20} \\sin(z)=\frac{11\,sin(133)}{20} \\sin(z)=0.4022$

Now we can use this value in the larger right angle triangle where WX is the opposite side to angle $\angle z$ , and the 20 mm side is the hypotenuse:

$sin(z)=\frac{opposite}{hypotenuse} \\sin(z)=\frac{WX}{20}\\0.4022=\frac{WX}{20}\\WX=20\,(0.4022)\\WX=8.044\,\,mm$

which rounded to the nearest integer gives

WX = 8 mm

3 0

3 years ago

You must reverse the inequality sign when solving this inequality: x + 7 < 4

SSSSS [86.1K]

I'm not 100% sure what you want me to do with this but i hope this helps:

x < -3

or if you want me to flip the sign then the solution becomes

x > -3

7 0

3 years ago

2.1d = 51.24 What is the answer?

erik [133]

24.4 is the answer. c:

3 0

3 years ago

The diagram shows the ratio of trees Maeve plants to the trees she harvests.

AnnZ [28]

Answer:

WEDNESDAY: 45 planted.

THURSDAY: 22 Harvested.

Step-by-step explanation:

Based on the information given in the problem, Maeve plants 5 trees for every 2 tree she harvests. Then the ratio can be expressed as following:

$5:2$ or $\frac{5}{2}$

Then, you can complete the values in the table as you can see below:

WEDNESDAY

$\frac{5}{2}=\frac{planted}{18}\\\\planted=\frac{18*5}{2}\\\\planted=45$

THURDAY

$\frac{5}{2}=\frac{55}{harvested}\\\\(harvested)(\frac{5}{2})=55\\\\harvested=\frac{55*2}{5}\\\\harvested=22$

6 0

3 years ago