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3 years ago

PLEASE HELP THIS IS DUE NOW will mark brainliest! 10 points

Mathematics

1 answer:

ladessa [460]3 years ago

4 0

The photo’s too blurry or is it just my eyes im sorry but i think it’s B

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F(x)=2x^2-3x+7 evaluate f(-2)

Vilka [71]

Answer:

Step-by-step explanation:

Find two linear functions p(x) and q(x) such that (p (f(q(x)))) (x) = x^2 for any x is a member of R?

Let p(x)=kpx+dp and q(x)=kqx+dq than

f(q(x))=−2(kqx+dq)2+3(kqx+dq)−7=−2(kqx)2−4kqx−2d2q+3kqx+3dq−7=−2(kqx)2−kqx−2d2q+3dq−7

p(f(q(x))=−2kp(kqx)2−kpkqx−2kpd2p+3kpdq−7

(p(f(q(x)))(x)=−2kpk2qx3−kpkqx2−x(2kpd2p−3kpdq+7)

So you want:

−2kpk2q=0

and

kpkq=−1

and

2kpd2p−3kpdq+7=0

Now I amfraid this doesn’t work as −2kpk2q=0 that either kp or kq is zero but than their product can’t be anything but 0 not −1 .

Answer: there are no such linear functions.

6 0

3 years ago

Find the area of the parallel gram 6 and 1/5 times 5

Dafna11 [192]

Answer:

if the height is 5 then the answer is 1.2 but its possible i am wrong.

6 0

3 years ago

An experiment is set up to study the weights of 35 mice after they are injected with a drug. The population mean is 23.50 grams

IgorC [24]

Answer:

The standard error of the sample mean is 0.57

Step-by-step explanation:

we know that

The Standard Error Formula is given by the formula

$SE = \frac{s}{ \sqrt{n} }}$

where:

SE = standard error

s = standard deviation

n = the sample size

In this problem we have

$s=3.40\ g\\n=35$

substitute in the formula

$SE = \frac{3.40}{ \sqrt{35}}}$

$SE=0.57$

6 0

3 years ago

A rock is dropped off a 500-foot cliff. After 1 second the rock is traveling 32 feet per second then after 4 seconds the rock st

professor190 [17]

Answer:

Part A:

The equation describing the relationship between speed and time is:

s = 32t

Ordered pairs of the form (speed, time) are:

(32, 1)

(64, 2)

(96, 3)

(128, 4)

Part B:

s = 32t

s = 32 * 5 = 160 feet per second

Step-by-step explanation:

1. Let's review the information provided to us to answer the question correctly:

Height of the cliff = 500 feet

Speed after one second = 32 feet per second

Speed after four seconds = 128 feet per second

2. Assume the relationship between time, t, and speed, s, is linear and write an equation describing the relationship. Use ordered pairs of the form (speed, time)

The equation describing the relationship between speed and time is:

s = 32t

Ordered pairs of the form (speed, time) are:

(32, 1)

(64, 2)

(96, 3)

(128, 4)

3. Use the equation to determine the speed of the rock 5 seconds after is dropped.

s = 32t

s = 32 * 5 = 160 feet per second

7 0

3 years ago

Which number line can be used to find the distance between (-1, 2) and (-5, 2)

wariber [46]

Answer:

y = 2; distance is 4 units

Step-by-step explanation:

Line y = 2

Because the y- coordinate is the same, only horizontal movement from -1 to -5..

Which is 4 units

6 0

3 years ago

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