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mario62 [17]
3 years ago
15

For every hour of exercise, Tina drinks 8 ounces of water. What is the ratio of hours to water

Mathematics
2 answers:
LuckyWell [14K]3 years ago
7 0

Answer:

1:8

Step-by-step explanation:

1 hour for every 8 ounces gives a 1:8 ratio

Ann [662]3 years ago
5 0

Answer:

8:3 would be the ratio

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The square and the triangle have equal perimeters.
Tamiku [17]
I think not because a square has four sides and a triangle has three.
8 0
3 years ago
Please help, will mark brainliest
Ganezh [65]

Answer:

y = 120x

Step-by-step explanation:

y=mx + b is what we need where m is the slope and b is the y-intercept.

the train travels at about 120km/hour, thus the slope is 120.

y= 120x +b. to find the y intercept plug in any coordinate.

240 = 120(2) +b. you find that the y-intercept is 0.

final equation: y= 120x

3 0
3 years ago
Read 2 more answers
The ratio of boys to girls in a classroom is 7 to 11. If
Vesna [10]

Answer:

Step-by-step explanation:

The ratio of boys to girls is

7

:

11

, and there are

49

boys, so therefore there are

49

7

⋅

11

=

77

girls

Total number of boys and girls in the classroom is

77

+

49

=

126

.

5 0
3 years ago
Please help i am super confused on what to do :)
Ludmilka [50]

Answer:

About 9.1 yards tall.

Step-by-step explanation:

So, we can draw the right triangle shown below:

We want to find h.

Since we know the angle and the side adjacent to the angle and we wan to find the opposite side, we will use the tangent ratio:

\displaystyle \tan(x^\circ)=\frac{\text{Opposite}}{\text{Adjacent}}

So:

\displaystyle \tan(20)=\frac{h}{25}

Therefore:

\displaystyle h=25\tan(20)

Use a calculator. Ensure your calculator is in the correct mode (degrees mode):

h\approx 9.1\text{ yards}

The goal post is around 9.1 yards tall.

7 0
3 years ago
The polynomial equation x^6-16x^2=4x^4-64 has complex roots +- 2i . What are the other roots? Use a graphing calculator and a sy
Irina18 [472]
Use u subsitution the solve by grouping
u=x^2
u^3-16u=4u^2-64
u^3-4u^2-16u+64=0
(u^3-4u^2)+(-16u+64)=0
u^2(u-4)+(-16)(u-4)=0
(u^2-16)(u-4)=0
(u-4)(u+4)(u-4)=0
(u+4)(u-4)^2=0

u=x^2
(x^2+4)(x^2-4)^2=0
(x^2+4)((x-2)(x+2))^2=0
(x^2+4)(x-2)²(x+2)²=0
set to zero

x^2+4=0
x^2=-4
x=+/-2i

x-2=0
x=2

x+2=0
x=-2

the other roots are -2 and 2

for graphinc calculator, graph and find x intercepts
3 0
3 years ago
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