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2 years ago

What’s the coefficient of x in the expression: -7x^2+3x-4?

Mathematics

1 answer:

likoan [24]2 years ago

6 0

Answer:

-7

Step-by-step explanation:

Coefficient is the number in front of x (with the highest exponent )

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9. To stitch a shirt, 2 m 15 cm cloth is needed. Out of 40 m cloth, how many shirts can be stitched and how much cloth will rema

DerKrebs [107]

Answer:

1 Shirt and 185cm remaining cloth

Step-by-step explanation:

2m and 15cm = 215cm

40m = 400cm

400/215=1.860465116

A shirt cant be in decimal so we remove the decimals, and take the as the answer. For the decimals, they are the remaining cloth.. to calculate the amount of remaining cloth we do:

1.860465116-1

=860465116

215*860465116=185cm

5 0

2 years ago

When a number is decreased by 25%, the result is 22. What is the original number to the nearest tenth?

Ilya [14]

The decrease is 25% so this means that 22 is 75% of the original number (100% - 25% = 75%)

Divide 22 by 75%:

22/ 0.75 = 29.3

The answer is 29.3

7 0

3 years ago

karen wants to find the area of the isosceles triangle ABC. she knows that the base of the triangle (side CB) is equal to 8 squa

S_A_V [24]

Answer:

16 squares

Step-by-step explanation:

The area of an isosceles is $\frac{bh}{2}$

$8 \cdot 4 = 32\\32 \div 2 = 16$

Hope this helped!

5 0

2 years ago

Read 2 more answers

Set up a proportion round to the nearest tenths. 26 is 380% of Wat number?

Ivanshal [37]

Answer:

10 percent is the answer

8 0

2 years ago

What is the image of (1,0) after a counterclockwise rotation of 60 degrees?

Anestetic [448]

Answer:

$\vec s = \left(\frac{1}{2},\frac{\sqrt{3}}{2} \right)$

Step-by-step explanation:

The coordinate has the following polar form:

$\vec r = (1, 0^{\circ})$

The image of the coordinate rotated counterclockwise 60° is:

$\vec s = (1, 60^{\circ})$

Its equivalent form in rectangular coordinates is:

$\vec s = (1\cdot \cos 60^{\circ}, 1 \cdot \sin 60^{\circ})$

$\vec s = \left(\frac{1}{2},\frac{\sqrt{3}}{2} \right)$

3 0

2 years ago