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3 years ago

23 please help thanks no link or i will report

Mathematics

1 answer:

NARA [144]3 years ago

4 0

how many students got 90 or less = 14

how many students got more than 90 = 11

3 more students got 90 or less so answers is D. 3

please mark brainliest

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Help! Will give brainliest and 10 points!

Genrish500 [490]

Answer:

its b

Step-by-step explanation:

trust me

8 0

3 years ago

Ramla has two full 1.5 litre bottles of water. She wants to fill as many glasses as possible with water from the bottles. Each g

DanielleElmas [232]

Answer:

8 glasses

Step-by-step explanation:

Total volume : 1500 ml

Glasses capacity : 180 ml

Glasses can be filled : 1500 / 180 = 8.33

Notice it says completely fill thus it is 8 glasses

6 0

4 years ago

Write an equation for the nth term of the arithmetic sequence.

tresset_1 [31]

Answer:

Step-by-step explanation:

3, 9, 15, 21, ...

9-3 = 6; 15-9 = 6; 21-15 = 6 ⇒ d = 6

first term: a = 3

difference: d = 6

so the formula:

$a_n=a+d(n-1)\\\\a_n=69+6(n-1)\\\\a_n =3+6n-6\\\\\underline{a_n=6n-3}$

and:

$a_{50}=6\cdot50-3=300-3=297$

5 0

3 years ago

What composition of rigid motions maps PQR to XZY?

Lapatulllka [165]

Answer:

Step-by-step explanation:

translated 8 units to the right and 2 units up then flipped

7 0

4 years ago

Jake is solving x^2-6x+5=0 by completing the square his steps are shown below step 1. x^2-6x=-5 step 2. x^-6x+9=-5+9 step 3. (x-

damaskus [11]

Answer:

Jake's error in step 3

Step-by-step explanation:

we have

$x^{2} -6x+5=0$

Complete the square

step 1

Group terms that contain the same variable, and move the constant to the opposite side of the equation

$x^{2} -6x=-5$

step 2

Complete the square. Remember to balance the equation by adding the same constants to each side

$x^{2} -6x+9=-5+9$

$x^{2} -6x+9=4$

step 3

Rewrite as perfect squares

$(x-3)^{2}=4$

Jake's error in step 3

He placed 6 instead of 3 in the left side

step 4

take square root both sides

$\sqrt{(x-3)^2} =\sqrt{4}$

step 5

$(x-3)=\pm2$

step 6

$x=3\pm2$

step 7

x=5 and x=1

7 0

4 years ago