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Vladimir79 [104]

3 years ago

15

Mathematics.

2 answers:

babymother [125]3 years ago

7 0

Answer: https://brainly.com/ jkjk its D

Mars2501 [29]3 years ago

3 0

The answer is D.45,45,45 because it adds to 135

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During the last ice age the sea level was ____________ it is today. A) unknown, unlike B) much lower than Eliminate C) much high

allsm [11]

During<span> the </span>last ice age<span> (top) </span>sea level<span> was at least 120 m </span>lower than<span> it is </span><span>today surprisingly. </span>

5 0

4 years ago

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jack ran 1.5 kilometers on the treadmill, then walked 475 meters before running another 2.5 kilometers how many kilometers did j

qaws [65]

We need first consider what data we have available:
a = run 1.5km
b = then run 2.3km
c = walk 475m
x = a + b + c = how many km he done on treadmill
before we go anywhere, we need to unify the units, we need to change meters to fraction of kilometers, kilo meant 1000, therefore:
1km = 1000m
475m / 1000m = 0.475km
now we can substitute:
x = a + b + c = 1.5km + 2.3km + 0.475km = 4.275km
we can round that up to first decimal point and then:
4.275km = 4.3km
answer is then:
jack done on the treadmill 4.275km or rounded up 4.3km

3 0

3 years ago

Point B has coordinates (4,1). The x-coordinate of point A is -4. The distance between point A and point B is 10 units. What a

klasskru [66]

Given:

Point B has coordinates (4,1).

The x-coordinate of point A is -4.

The distance between point A and point B is 10 units.

To find:

The possible coordinates of point A.

Solution:

Let the y-coordinate of point A be y. Then the two points are A(-4,y) and B(4,1).

Distance formula:

$D=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

The distance between point A and point B is 10 units.

$\sqrt{(4-(-4))^2+(1-y)^2}=10$

Taking square on both sides, we get

$(8)^2+(1-y)^2=100$

$(1-y)^2=100-64$

$(1-y)^2=36$

Taking square root on both sides, we get

$(1-y)=\pm \sqrt{36}$

$-y=\pm 6-1$

$y=1\mp 6$

$y=1-6$ and $y=1+6$

$y=-5$ and $y=7$

Therefore, the possible coordinates of point A are either (-4,-5) or (-4,7).

7 0

3 years ago

The distance around the school track is 0.25 mile. It takes Maribeth 5.1 minutes to run 2 laps around the school track. At that

BabaBlast [244]

Answer:

10.2 minutes

Step-by-step explanation:

1 lap= 1/4 mile

2 laos= 1/2 mile

5.1 x 2= 10.2 minutes

7 0

3 years ago

Find the product of (x + 7)2.

il63 [147K]

Answer:

x^2 14x + 49

Step-by-step explanation:

Use F.O.I.L method

FIRST: x * x = x^2

OUTSIDE: 7*x

INSIDE: 7*x

LAST: 7*7= 49

x^2 + 7x + 7x + 49

x^2 14x + 49

8 0

3 years ago

Read 2 more answers