1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
adell [148]
3 years ago
11

Solve the system of equations using substitution or graphing. y = –x2 + 4x + 5 y = x + 1

Mathematics
2 answers:
forsale [732]3 years ago
5 0

Answer:

The correct choice is <u>option A) (-1, 0) and (4, 5)</u>.

Step-by-step explanation:

See the attached graph below.

As you can see, the two equations intersect at (-1, 0) and (4, 5).

Natasha_Volkova [10]3 years ago
3 0
The answer to your question is A
You might be interested in
The area of the triangle is 24 feet.
Aleksandr-060686 [28]
Does anybody know the answer 
4 0
4 years ago
A soccer goal is 24 feet wide. Point A is 40 feet in front of the center of the goal. Point B is 40
Liono4ka [1.6K]

Answer:

a) Angles A and B are 90 degree.

b) The 2 angles are equal

c) From point A having a better chance to kicking the ball in to goal

Step-by-step explanation:

a, b) 2 points are in front of the center and right post of goal. Because there is no detail, we can assume that point A, point B, center of goal, right goal post make up a rectangle. Therefore, the 2 angles are measured equally as 90 degree.

c) Because it's a rectangle, the distance between point A and center of goal is shorter than that between point B and center of goal.

3 0
3 years ago
A student is considering publishing a new magazine aimed directly at owners of Japanese automobiles. He wanted to estimate the f
JulsSmile [24]

Answer:

Check Explanation

Step-by-step explanation:

a) Confidence Interval for the population mean is basically an interval of range of values where the true population mean can be found with a certain level of confidence.

Mathematically,

Confidence Interval = (Sample mean) ± (Margin of error)

With p(japan) representing the true population proportion of US automobile that are made in Japan, the computer output 90% confidence

0.29938661 < p(japan) < 0.46984416

mean that p(japan); the true population proportion of US automobile that are made in Japan lies within the range of proportions (0.29938661, 0.46984416) with an assurance level of 90%.

b) 90% confidence mean that the true proportion may or may not be in the given range, but we are 90% certain that it does.

c) The confidence interval contradicts the politician's claim that "Half of all cars in the United States are made in Japan" because the proportion in the politician's claim, (0.50), does not lie within the range of values that our confidence interval says the true population proportion can take on; (0.29938661, 0.46984416).

0.50 lies outside of the confidence interval obtained for the true population proportion of US automobiles that are made in Japan, hence, the confidence interval contradicts the politician's claim.

Hope this Helps!!!

3 0
4 years ago
Can I get some help abs an easy explanation pls
Svetlanka [38]

we are given the following triangles:

We are asked to determine the value of "y". To do that we will use the tangent of 25:

\tan 25=\frac{y}{x}

We solve for "y" by multiplying both sides by "x":

x\tan 25=y

Now, we take the tangent of 15:

\tan 15=\frac{y}{30+x}

Now, we solve for "y" by multiplying both sides by the denominator:

(30+x)\tan 15=y

Now, we set both values of "y" equal, we get:

x\tan 25=(30+x)\tan 15

now, we solve for "x". First, we apply the distributive property on the right side:

x\tan 25=30\tan 15+x\tan 15

Now, we substract

7 0
1 year ago
Tickets for an Amtrak train cost $22 for children and $48 for adults. Josie paid $3,278 for a total of 84 tickets. How many chil
timama [110]

Answer:

29 child 55 adult

Step-by-step explanation:

x+y=84

22x+48y=3278

x=29,y=55

hope it will help, if not, sry, u can comment below to ask me!

5 0
3 years ago
Other questions:
  • Write a compound inequality that represents each situation. Graph your solution all real numbers that are greater than –8 but le
    7·2 answers
  • A craft store has 5 yards and 2 inches of ribbon. The cost of the ribbon is calculated per inch. How many inches of
    5·1 answer
  • on a map, the distance between Sheila's house and shardae's house is 6.75 inches. according to the scale, 1.5 inches represents
    15·1 answer
  • Factor 20pq- 20 qr +4p - 4r
    6·1 answer
  • The measure of an angle is two times the measure of it complementary angle. What is the measure of each angle
    13·1 answer
  • Anyone who understands this?
    12·2 answers
  • I don’t understand what the rule is fit this and how to get it.
    9·1 answer
  • MULTIPLE CHOICE PLEASE HELP
    9·1 answer
  • A 9-yard roll of string costs $3.42. What is the unit price?
    14·1 answer
  • Name a pair of complementary angles in this figure.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!