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3 years ago

Pls answer all 5! Will mark brainliest!!

Mathematics

1 answer:

Wewaii [24]3 years ago

7 0

Answer:

1)A

2)B

3)A

4)C

5)D

Step-by-step explanation:

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X² + 3x + k = 0<br>pls help

denis-greek [22]

Answer:

$\left(h,\:k\right)=\left(-\frac{3}{2},\:\frac{9}{4}\right),\:p=-\frac{1}{4}$

Step-by-step explanation:

$x^2+3x+y=0$

$4\left\bigg(-\frac{1}{4}\right)\left\bigg(y-\frac{9}{4}\right)=\left\bigg(x-\left\bigg(-\frac{3}{2}\right)\right)^2$

$\bold{\mathrm{Therefore\:parabola\:properties\:are:}}$

$\left(h,\:k\right)=\left(-\frac{3}{2},\:\frac{9}{4}\right),\:p=-\frac{1}{4}$

3 0

2 years ago

A news station in oregon recorded that the low temperature for 5 days were -3,-2,2,2, and 6.what was the average temperature for

emmainna [20.7K]

[ (- 3) + (-2) + 2 + 2 + 6 ] / 5 = 5 / 5 = 1.

6 0

3 years ago

Read 2 more answers

Given that f(x)=2x-8, determine the average rate of change over the interval [2, 8].

8_murik_8 [283]

Answer:

Step-by-step explanation:

The average rate of change over [2, 8] is the change in the y-values over the change in the x-values.

$\frac{f(8) - f(2)}{8 - 2}$

$f(8) = 2(8) - 8 = 16 - 8 = 8$

$f(2) = 2(2) - 8 = 4 - 8 = -4$

$\frac{8 - (-4)}{8-2} = \frac{8 + 4}{8-2} = \frac{12}{6} = 2$

5 0

3 years ago

Regular hexagon ABCDEF is shown below. Find the measure of angle x.

Aleks [24]

Answer:

ANSWER: 30

ANGLE BCD IS MADE UP OF 180 DEGREES ANGLE C IS 120 AND SINCE THE ENTIRE ANGLE IS 180 AND C AND D IS CONGRUENT AND 60 DEGREES IS LEFT WE DIVIDE BY 2 TO FIND OUR ANSWER OF 3O

8 0

3 years ago

I WILL MARKED BRAINLIEST IF YOU COULD ANSWER THIS!

tester [92]

Answer:

s = -2400t + 17400

Step-by-step explanation:

Let's say t is the x value on a coordinate plane, and s is the y. Then, we have the points (0, 17400) and (6, 3000). The slope of these is 14400/-6 or -2400.

Now we just have the equation y = -2400x + b, and from the point (0, 17400) we can find that b is 17400. So, we have y = -2400x + 17400. Convert these back into t and s and you get your answer, s = -2400t + 17400.

6 0

3 years ago