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4 years ago

!!! (!PLEASE HELP!) !!!

Mathematics

1 answer:

Bezzdna [24]4 years ago

8 0

The correct answer should be b, 11 and 19

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Write a multiplication equation that has a solution of 12. Use tape diagrams to prove that your equation has a solution of 12.

natima [27]

Answer:

The required equation is 3y=36 and the tape diagram is shown below.

Step-by-step explanation:

Consider the provided information.

We need to write a multiplication equation that has a solution of 12.

3y=36

We know we have to split 36 into three equal groups, so we have to divide by 3 to show this algebraically.

3y÷3=36÷3

y=12

Now check this with the help of tape diagram as shown.

Consider the figure 1.

This represents if 36 had to be split into three groups, how big would each group be?

By the tape diagram we concluded that the value of y is 12.

5 0

3 years ago

Help please hurry......

user100 [1]

All multiples of 15 between 0 and 300,inclusive

How?

$\\ \sf\longmapsto f(x)=15x$

$\\ \sf\longmapsto f(0)=15(0)=0$

$\\ \sf\longmapsto f(20)=15(20)=300$

Hence.

$\\ \sf\longmapsto 0\leqslant R_f\leqslant 300$

8 0

3 years ago

Read 2 more answers

PLEASE NO LINKS

Lemur [1.5K]

Answer:

5/18

Step-by-step explanation:

Let the numerator be x.

1/9 < x/ 18 < 1/3
2/18 < x / 18 < 6/18
2 < x < 6
x = {3, 4, 5}

Fractions that satisfy the condition:

3/18, 4/18, 5/18

The first two can be simplified further:

3/18 = 1/6, 4/18 = 2/9

The answer is 5/18

4 0

3 years ago

Which of the following is a proportion?

belka [17]

Answer:

Step-by-step explanation:

10/18 = 25/45

10 x 45 = 450

18 x 25 = 450

A proportion is a name we give to a statement that two ratios are equal. It can be written in two ways: two equal fractions, or, using a colon, a:b = c:d.

7 0

3 years ago

Read 2 more answers

A person standing close to the edge on top of a 112-foot building throws a ball vertically upward. The quadratic function h ( t

LenaWriter [7]

Answer:

the maximum height of the ball= 256 feet

7 seconds

Step-by-step explanation:

The quadratic function h ( t ) = − 16t^2 + 96t + 112 models the ball's height about the ground, h ( t ) , in feet, t seconds after it was thrown.

a= -16 , b= 96 and c= 112

To find maximum height , we find vertex

$x= \frac{-b}{2a}=\frac{-96}{2(-16)}= 3$

Now plug in 3 for 't' in h(t)

$h(t) = -16t^2 + 96t + 112$

$h(t) = -16(3)^2 + 96(3)+ 112=256$

Hence vertex is (3, 256)

the maximum height of the ball= 256 feet

(b) when the ball hits the ground then height becomes 0

so we plug in 0 for h(t) and solve for t

$0 = -16t^2 + 96t + 112$

Apply quadratic formula

$t=\frac{-b+-\sqrt{b^2-4ac}}{2a}$

Plug in all the values a= -16 , b= 96 and c= 112

$t=\frac{-96+-\sqrt{96^2-4(-16)(112)}}{2(-16)}$

t= -1 and t= 7

time cannot be negative. So it will take 7 second to hit the ground.

8 0

3 years ago