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ANEK [815]
3 years ago
7

I need help please and thank you

Mathematics
2 answers:
Amanda [17]3 years ago
8 0

Answer:

-2,400

Step-by-step explanation:

since they are in parentheses u multiple them together. a positive number × a negative number is a negative number.

Salsk061 [2.6K]3 years ago
8 0

Answer:

-2,480

Step-by-step explanation:

(31)(-80)

= -2,480

plus × minus = minus

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A quadrilateral has angles that measure 74°, 93°, and 117°.
Lana71 [14]

Answer:

D

Step-by-step explanation:

74 + 93 + 117= 284

360 - 284 = 76

3 0
3 years ago
Read 2 more answers
Rama is stringing beads whose lengths are each 0.19 inches. How can rounding be used to estimate the length of a row of 9 beads?
Mice21 [21]

Since the beads are about 0.20 inches, the length of a row of 9 beads will be approximately 9 × 0.20 = 1.80 inches.

Step-by-step explanation:

According to given statement;

Length of individual stringing beads = 0.19 inches

Rounding off = 0.2 inches

Length of row of 9 beads = 9* rounded off length of individual beads

Length of row of 9 beads = 9*0.2

Length of row of 9 beads = 1.80 inches

Since the beads are about 0.20 inches, the length of a row of 9 beads will be approximately 9 × 0.20 = 1.80 inches.

Keywords: multiplication

Learn more about multiplication at:

  • brainly.com/question/4767370
  • brainly.com/question/4770453

#LearnwithBrainly

6 0
3 years ago
in circle O the radius is 4ft and the measure of minor arc ab is 120 degrees find the length of minor arc ab to the nearest inte
KIM [24]

Answer:

8\:\text{ft}

Step-by-step explanation:

The length of the arc is proportional to the degree measure it in encompasses. Since there are 360 degrees in a circle and the arc is 120 degrees, the arc's length will be \frac{120}{360}=\frac{1}{3} of the circle's length (circumference).

The circumference of a circle is given by 2\pi r, where r is the radius of the circle. Therefore, the circumference of the circle is 2\pi(4)=8\pi. As we found earlier, the length of the arc is \frac{1}{3} of this circumference. Therefore, the arc's length is 8\pi\cdot \frac{1}{3}=\frac{8\pi}{3}.

To the nearest integer, this is \approx \boxed{8\:\text{ft}}.

4 0
3 years ago
The perimeter of the scalene triangle is 54.6 cm.
valina [46]
Are you sure it’s a scalene triangle because if you only know one side and all the other sides are different lengths then it’s impossible to computer unless we know angle measures. It would have to be isoceles or we would need angle measures
5 0
3 years ago
What are the x-intercepts of x^2– 3x = 4?
Sindrei [870]

Answer:

x^2-3x=4

x^2-3x-4=0

x^2-4x+x-4=0

x(x-4)+1(x-4)=0

(x+1)(x-4)=0

x=-1,4

x- intercepts in the point (-1,0) and (4,0)

Step-by-step explanation:

3 0
3 years ago
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