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LuckyWell [14K]
2 years ago
11

Help me please . quick :)

Mathematics
1 answer:
ycow [4]2 years ago
3 0

Answer:

x= 1

QS = 10 cm

QRS = 40cm

Step-by-step explanation:

4x + 1 = 5x

x= 1 cm

QS = 4x + 1 + 5x

= 9x + 1

= 9 + 1

= 10cm

QRS perimeter

QS + RQ + RS but ( RQ = RS)

= 10 + 15 + 15

= 40cm

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If you can, please help answer this algebra question.
Evgesh-ka [11]

Answer:

R: {-7,-2,3,8}

Step-by-step explanation:

The range is the output values of the function

The values or 8,3,-2,-7

We put them in order from smallest to largest

R: {-7,-2,3,8}

5 0
3 years ago
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Can someone help me in this question
BlackZzzverrR [31]

Answer:

The average speed of the athlete for the entire competition is approximately 21.23 km/hr

Step-by-step explanation:

The given parameters of the athlete performance in the triathlon are;

The length the athlete swims = 750 m = 0.75 km

The time the athletes spends swimming = 15 minutes = 0.25 hours

The speed with which the athlete cycles = 40 km/hr.

The time the athletes spends while cycling = 30 minutes = 0.5 hours

The distance the athlete ran = 5 km

The average speed with which the athlete ran = 3 m/s = 10.8 km/hr.

The formula for average speed, s is Average speed = Total distance/(Total time)

The distance, ∑d, the athlete covered in the entire competition is given as follows;

∑d = 0.75 km + 0.5 hr. × 40 km/hr. + 5 km = 0.75 km + 20 km + 5 km = 25.75 km

The distance, ∑t, the athlete spends in the entire competition is given as follows;

∑t = 0.25 hr. + 0.5 hr. + 5 km/(10.8 km/hr.) = 0.25 hr. + 0.5 hr. + 0.463 hr. ≈ 1.213 hr.;

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6 0
3 years ago
Two
Vlad1618 [11]

Answer:

Step-by-step explanation:

If you flip coins, you can get,

HT TH HH TT

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Out of these 4, Matt has to do chores if two heads are flipped. It is 1/4 chance.

Out of these 4, Mark has to do chores if two tails are flipped. Again, 1/4 chance.

The method of decision is far since both guys have the same chance of being picked to do chores.

To flip again, they would have to get either HT or TH out of the 4 choices. So 2/4=1/2 is the likeihood they must flip again.

4 0
3 years ago
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stira [4]

The answers are A and B . The positive ones can’t be right because it you keep adding and multiplying positives then your number increases

5 0
3 years ago
Which of the following is the rational exponent expression of fourth root of f?
Anton [14]

Answer:

Option a:f^{\frac{1}{4}}


Step-by-step explanation:

1. By definition \sqrt[n]{x} can be written as x^{\frac{1}{n}}.

2. Then, keeping this on mind, you have that \sqrt[4]{f} can be also written as following:

\sqrt[4]{f}=f^{\frac{1}{4}}

3. Therefore, the rational exponent expression of \sqrt[4]{f}  is the option a:

f^{\frac{1}{4}}


8 0
3 years ago
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