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2 years ago

Help please number 19

Mathematics

2 answers:

Vika [28.1K]2 years ago

3 0

Answer:

A.4

Step-by-step explanation:

Median is the middle meaning 6th grade got 4 more hours then the 8th graders

irinina [24]2 years ago

3 0

Answer:

B-2.5

Step-by-step explanation:

Because the median for the first one is 5 and the median for the second one is 7.5 and 7.5-5=2.5

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The vertices of a triangle are A(2,4),B(-1,-3),and C(3,6). Find the new vertices. Use the rule (x,y) >>>(x-3,y+5)to tra

Mama L [17]

Answer:

A(-1,9), B(-4,2) and C(0,11)

Step-by-step explanation:

The vertices of a triangle are A(2,4),B(-1,-3),and C(3,6).

To translate, we use the rule (x,y) >>>(x-3,y+5)

For Vertex A(2,4),

The new vertex is (2-3, 4+5)=(-1,9)

For Vertex B(-1,-3)

The new vertex is (-1-3,-3+5)=(-4,2)

For Vertex C(3,6)

The new vertex is (3-3,6+5)=(0,11)

After translation of Vertex A, B and C by the given rule, the new points are A(-1,9), B(-4,2) and C(0,11)

8 0

2 years ago

A culture started with 3000 bacteria. After 4 hours, it grew to 3,600 bacteria. Predict how many bacteria will be present after

Vlad [161]

Hello Shannonrodrigue. You can solve this by setting up an exponential growth equation.

$A = A_ob^t$
$3600 = 3000b^4$

Now we solve for b
$3600 = 3000b^4$
$\frac{3600}{3000} = \frac{3000b^{4}}{3000}$
$\frac{6}{5} = b^4$
$\sqrt[4]{\frac{6}{5}} = \sqrt[4]{b^4}$
$\sqrt[4]{\frac{6}{5}} = b$

Now that we have found b, we can use the equation $A = 3000b^t$ to predict how many bacteria will be present after 10 hours.
$b = \sqrt[4]{\frac{6}{5}}$
t = 10
$A = 3000b^t$
$A = 3000\sqrt[4]{\frac{6}{5}}^{10} = 4732.3228 = 4732$

Answer = 4732

4 0

3 years ago

allen has a debt of 500$.He owes equal amounts to 10 different people. Express his debt to one person as a negative number.

SOVA2 [1]

-50 because if he owes 10 different people the same amount it would be -50 because he owes them money

4 0

2 years ago

5 consecutive integers whose sum is -155

nekit [7.7K]

Answer:

-29, -30, -31, -32, -33

Step-by-step explanation:

add them together

5 0

3 years ago

Are the fractions 5/6, 5/7, 5/8, and 5/9 and arranged in order<br> from greatest to least? Explain.

VashaNatasha [74]

No

Step by step
5/9 5/8 5/7 5/6

3 0

3 years ago