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mel-nik [20]
3 years ago
6

How many x-intercepts does the graph of y = 2x^2 + 5x +9 have?

Mathematics
1 answer:
Pepsi [2]3 years ago
7 0

Answer:

2

Step-by-step explanation:

y = 0 at the point where the function intersects x-axis. Thus, yiou have to put

                                              2x2 + x - 10 = 0

and solve the equation. It is better to factor the quadratic expression, which gives us

                                             2x2 + x - 10 = (2x+5)(x-2) = 0

We have 2x +5 = 0     and x-2 = 0. Thus, the intercepts are x = -5/2 = - 2.5    and x = 2.

Read more on Brainly.com - brainly.com/question/12158546#readmore

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3. Vocabulary Suppose △MNP ∼△RST. How can you identify corresponding parts?
MakcuM [25]

Similar triangles may or may not have congruent sides, but the ratio of the corresponding sides will always be congruent.

<u>(3) Corresponding sides of △MNP and △RST</u>

Given that △MNP ∼△RST.

This means that, the corresponding sides are:

  • MN and RS
  • MP and RT
  • NP and ST

<u>(4) The equal measures</u>

Given that △ABC ∼△TUV

This means that, the corresponding angles are equal, but corresponding sides are not.

So, the equal measures are:

  • (a). the measures of ∠A and ∠T
  • (c). the ratios of the sides BC/UV and AC/TV

The unequal measure is:

  • (b). the perimeters of the two triangles

<u>(c) Scale mapping</u>

The scale mapping is given as:

Ratio = 1\ in : 100\ mi

The above scale means that 1 inches on the scale represents 100 miles of the actual distance.

Take for instance, 5 inches would represent 500 miles.

500 is 5 times 100

Hence, the actual distance between two towns 100 times the map distance between the two towns

Read more about similar triangles at:

brainly.com/question/14285697

3 0
2 years ago
There are 896 people at the school's basketball game. The
Setler [38]

Answer:

56 that's easy.....

Step-by-step explanation:

....

8 0
3 years ago
40 divided by 3/8 please asap
Verdich [7]
3/8 = 0.375
40/0.375 = 106 and 2/3
7 0
2 years ago
Why did Chase (and many others) oppose passage of the Kansas-Nebraska Act?
Misha Larkins [42]
Some objected to slavery on moral grounds, believing that it violated christian teachings , while others simply did not want to complete economically with slave-owners.
6 0
2 years ago
A Sum of $14 is made of 92 coins consisting of dimes and quarters. How Many are there of each kind of coin
steposvetlana [31]
So first I would say, what if all of them were dimes, how far away would it be from $14?

So 92 coins * 10 cents = $9.20

So it's 4.80 dollars away from 14 dollars.

So if we were to switch one to a quarter, it would increase by 0.15 cents.

So we want to see how many increases we need to reach 4.80 dollars more.

4.80/0.15 = 32

So there are 32 quarters and 60 dimes.
7 0
3 years ago
Read 2 more answers
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