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3 years ago

Please help ASAP will give brainliest

Mathematics

2 answers:

Wittaler [7]3 years ago

7 0

B and E
hope that helps

umka21 [38]3 years ago

4 0

Answer:

B and E

Step-by-step explanation:

Hope it helps

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Janine,who brought 15$ worth of make up, spent 6$ less than leah spent

Aneli [31]

Janine = J = 15
Leah = L = ?

L = J + 6
L = 15 + 6
L = 21

So Leah spent $21

5 0

3 years ago

In a standard deck of cards there are 13 spades, 13 clubs, 13 hearts, and 13 diamonds. The spades and the clubs are black and th

Usimov [2.4K]

A 1/8.
hope this helps

4 0

3 years ago

Please help i dont wanna fail this time

mezya [45]

Answer:

Step-by-step explanation:

So...

you would add -4 and -2 1/2 giving the total of -6 1/2.

All thats left is for you to graph it:)

(Please mark brainliest)

3 0

3 years ago

Read 2 more answers

Suppose a flare is shot from the top of a 120 foot building at a speed of 160 feet per second. The equation h = ?16t + 160t + 12

insens350 [35]

Answer:

The time taken for the flare to hit the ground is approximately 10.7 seconds.

Step-by-step explanation:

Given : Suppose a flare is shot from the top of a 120 foot building at a speed of 160 feet per second. The equation $h =- 16t^2+ 160t + 120$ models the h height at t seconds of the flare.

To find : How long will it take for the flare to hit the ground?

Solution :

The equation $h =- 16t^2+ 160t + 120$ models the h height at t seconds of the flare.

The flare to hit the ground when h=0.

Substitute in the equation,

$-16t^2+ 160t + 120=0$

Applying quadratic formula, $x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}$

Where, a=-16, b=160 and c=120

$x=\frac{-160\pm\sqrt{160^2-4(-16)(120)}}{2(-16)}$

$x=\frac{-160\pm\sqrt{33280}}{-32}$

$x=\frac{-160\pm 182.42}{-32}$

$x=\frac{-160+182.42}{-32},\frac{-160-182.42}{-32}$

$x=−0.70,10.70$

Reject the negative value.

Therefore, the time taken for the flare to hit the ground is approximately 10.7 seconds.

4 0

3 years ago

Solve x2 − 10x = −13.

aev [14]

Answer:

Step-by-step explanation:

First, let's rearrange the given equation into something more recognizable. If we add 13 to both sides, we now have the polynomial $x^{2}-10x+13$ . We can now use the quadratic formula to solve.