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scZoUnD [109]
3 years ago
6

Find the x-intercepts of the graph of y=x^2+4x-45

Mathematics
1 answer:
Eva8 [605]3 years ago
4 0

Answer:

(-9, 0) (5, 0)

Step-by-step explanation:

if we set y to 0, then we get:

0 = x^{2} + 4x - 45

Now, we have to find what the x value is to equal 0.

0 = -9^{2} + 4(-9) - 45

0 = 81 - 36 - 45

0 = 45 - 45

0 = 5^{2} + 4(5) - 45

0 = 25 + 20 - 45

0 = 45 - 45

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The two right triangles below are similar what is x the missing side length in triangle DEF
sasho [114]
I think that the answer is C. 10
8 0
3 years ago
7x=5+5x x equals what
dybincka [34]

7x=5+5x

x=5/2

It could also be 2 1/2

3 0
3 years ago
A pennant is a shape of a triangle has a base of 12 inches and a height of 30 inches. What the area of the pennant?
Korolek [52]

Answer:

180 square inches

Step-by-step explanation:

Area, A is given by A=0.5bh where b is base and h is height. Since both of these dimensions are provided then we substitute the given figures into the formula. Substituting 12 inches for base, b and 30 inches for height, h then the area will be equivalent to

A=0.5*12*30=180 square inches.

Therefore, the area of the described triangle is 180 square inches.

6 0
4 years ago
Jane earns a 5.5% commission on the selling price of each home she sells. She earned $9,020 in commission on the sale of a home.
ratelena [41]

Answer:

"$164000" is the appropriate answer.

Step-by-step explanation:

Let the selling price be "s".

As per the question,

If Jane take 5.5% of selling price i.e.,

= 0.055\times s

Given commission,

= $9,020

then,

The selling price will be:

⇒ 0.055\times s=9020

                s=\frac{9020}{0.055}

                   =164000 ($)    

6 0
3 years ago
A chef uses 4.5 cups of tomatoes to make each batch of pasta sauce. If t represents the number of cups of sauce, which equation
SashulF [63]

Answer: t=4.5x

Step-by-step explanation:

t=cups of tomatoes

x=batch(es) of pasta sauce

Example:

The chef wants to know how many tomatoes he needs to make 2 batches of pasta sauce.

x=2

So 4.5x2=9

Answer for the example is 9

6 0
3 years ago
Read 2 more answers
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