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Alika [10]
2 years ago
6

What is -15x(-7) ( integer operation)

Mathematics
1 answer:
MA_775_DIABLO [31]2 years ago
6 0

- 15x( - 7) =  105x
Not much more to say about this. Just multiply the integer by the coefficient.
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A fair survey question is one that does not encourage biased responses.
laiz [17]
B because it's not putting the blame on anyone. It is completely unbiased and objective.
7 0
3 years ago
PLEASE HELP! (05.01 MC)
Temka [501]

Answer:

3) Option C is correct.

3 over 3 and 61 hundredths = 6 over 7 and 22 hundredths

Step-by-step explanation:

Triangle BDE is dilated by a scale factor of 2 to obtain triangle BAC.

Dilation by a scale factor of 2 means that all the sides of triangle BAC are twice as much as the corresponding sides of triangle BDE.

And triangle BDE is similar to triangle BAC.

It also means that the corresponding angles are necessarily equal.

BD = 2

BE = 3

ED = 3.61

BA = 2 × BD = 2 × 2 = 4

BC = 2 × BE = 2 × 3 = 6

CA = 2 × ED = 2 × 3.61 = 7.22

Cos ∠D according to trigonometric relations is given as (adj/hyp)

Adj = Adjacent side = BE = 3

Hyp = hypotenuse side = ED = 3.61

Cos ∠D = (3/3.61)

Cos ∠A can also be similarly obtained from trigonometric relations as (adj/hyp)

Adj = Adjacent side = BC = 6

Hyp = hypotenuse side = CA = 7.22

Cos ∠A = (6/7.22)

Since the two angles are corresponding angles of two similar triangles,

We can easily see that

Cos ∠D = Cos ∠A

(3/3.61) = (6/7.22) = 0.8310

Which is necessarily equal to each other

Hence, the proportion that proves that Cos ∠D = Cos ∠A is 3 over 3 and 61 hundredths = 6 over 7 and 22 hundredths.

please mark me brainliest :)

7 0
3 years ago
The cost of 8 muffins and 2 quarts of milk is $18. The cost of 3 muffins and 1 quart of milke is $7.50. How much does 1 muffin a
Studentka2010 [4]
Let x equal the cost of one muffin and y equal the cost of quart of milk
8x+2y=18
3x+y=7.50

See if you can solve it from there. If not let me know
4 0
3 years ago
Read 2 more answers
if AB = 3 centimeters and AC = 2 centimeters, what is the largest possible perimeter, in centimeters, of isosceles triangle ABC?
kotegsom [21]

Answer:

8

Step-by-step explanation:

AB is 3 cm and AC is 2 cm, and since triangle ABC is an isosceles triangle, BC can either be 3 cm or 2 cm. We want the longest perimeter possible, so make BC 3 cm, and add the side lengths to find the perimeter.

P = 3 + 3 + 2 = 8.

5 0
2 years ago
Help me please I need help with domain and range.
Ludmilka [50]

Answer:

[ -2, ∞ ), [ -1, ∞ )

Step-by-step explanation:

Domain: all x values

[ -2, ∞ )

Range: all y values

[ -1, ∞ )

5 0
2 years ago
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