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umka2103 [35]
3 years ago
13

What is the value of the expression -1/2 + 2.2? ***HINT*** Change your

Mathematics
1 answer:
alina1380 [7]3 years ago
7 0

Answer:

1.7

Step-by-step explanation:

0.5 + 2.2 = 1.7

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Becky is making 1/2 batch of chocolate chip cookies. The recipe calls for cup 7/8 chocolate chips. How much chocolate does Becky
nignag [31]

Answer:

3/8 chocolate chips

Step-by-step explanation:

1/2 needs to have the same denominator as 7/8

2 * 4 = 8 (denominator) but what you do for the denominator has to apply for the numerator.

1 * 4 = 4 (numerator)

so now you successfully converted 1/2 to 4/8.

Now you solve, total - items you have = how much you need

                           7/8 - 4/8 = 3/8

5 0
3 years ago
Read 2 more answers
What are the roots of the equation 9x^2 + 54x +82 = 0 in simplest a + bi form?​
s344n2d4d5 [400]

Answer:

The roots are

<h3>x =  - 3 +  \frac{1}{3}  i \:  \:  \: or \:  \:  \: x =  - 3 -  \frac{1}{3} i \\</h3>

Step-by-step explanation:

9x² + 54x + 82 = 0

Using the quadratic formula

That's

<h3>x =  \frac{ - b\pm \sqrt{ {b}^{2}  - 4ac} }{2a}</h3>

From the question

a = 9 , b = 54 , c = 82

Substitute the values into the above formula and solve

That's

<h3>x =  \frac{ - 54\pm \sqrt{ {54}^{2}  - 4(9)(82)} }{2(9)}  \\ x =  \frac{ - 54\pm \sqrt{2916 - 2952} }{18}  \\ x =  \frac{ - 54\pm \sqrt{ - 36} }{18}  \\ x =  \frac{ - 54\pm 6i}{18}</h3>

Separate the real and imaginary parts

That's

<h3>x =  -  \frac{54}{18} \pm \frac{6}{18}  \: i \\ x =  - 3\pm \frac{1}{3} i</h3>

We have the final answer as

<h3>x =  - 3 +  \frac{1}{3}  i \:  \:  \: or \:  \:  \: x =  - 3 -  \frac{1}{3} i \\</h3>

Hope this helps you

5 0
3 years ago
43 cents written as a percent of $1 can be written as..
xz_007 [3.2K]
43 percent

1$ is equal to 100 cents, so 43 cents out of 100 cents, or 43/100 equals 43 percent
3 0
4 years ago
Read 2 more answers
Please please help me out......... :)
Vika [28.1K]

Answer:

B

Step-by-step explanation:

The red graph is the graph of y = f(x) translated horizontally by 3 units

Given f(x) then f(x + a) is a horizontal shift of a units

• If a > 0 then shift to the left of a units

• If a < 0 then shift to the right of a units

Here f(x) has been shifted 3 units to the right, thus

y = f(x - 3) → B

7 0
3 years ago
At Laurita's Bakery,3/5 of the baked goods are pies, and the rest are cakes. 1/3of the pies are coconut pies. What fraction of a
Lubov Fominskaja [6]

Answer: this is what i know

At Laurita's bakery 3/5 of the baked goods are pies and the rest are cakes. 1/3 of the pies are coconut. 1/6 of the cakes are angel-food. What fraction of all of the baked goods at Laurita's Bakery are coconut? What fraction of all the baked goods at . asked by Cathy on March 6, 2017;

7 0
3 years ago
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