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Olenka [21]
4 years ago
6

How do you solve this equation 7(3)+(-9)×(-4)=

Mathematics
1 answer:
Softa [21]4 years ago
7 0

Hello!

To solve this equation, we will need to use PEMDAS (parentheses, then exponents, then multiplication/division, then addition/subtraction).

7(3) + (-9) x (-4) =

21 + (-9) x (-4) =

21 + 36 =

57

I hope this helps you! Have a lovely day!

- Mal

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A pole vaulter uses a 15 foot long pole. she grips the pole so that the segment below her left hand is twice the length of the s
ddd [48]
Answer: The pole is 3.5 foot above the right hand.
To answer this question first you need to determine the left hand height/position. The left hand divides the pole segment into 2:1 ratio. If the pole if 15 foot long, then the equation will be:
2/(2+1)x 15 foot= 10 foot.

The left hand is located 10 foot from the ground and the right hand is 1.5 foot above it. Then the right hand position from the ground is:
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5 0
3 years ago
Which equation models the problem and shows the correct solution? The difference between x and 89 is 7.
RideAnS [48]
X - 89 = 7
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4 0
4 years ago
Read 2 more answers
Find the value of the trigonometric ratio. make sure to simplify the fraction if needed
damaskus [11]

Answer:

Cos C = a/h

= 21/35

Step-by-step explanation:

since cos is equal to adjacent angle over hypotenuse angle, so from the question we conclude Cos C = 21/35

7 0
3 years ago
Hey there! I was wondering if I could receive help on solving these first 4 questions! :)
bulgar [2K]

Given

Find

Surface Area and Volume of the figure.

Explanation

As we know , surface area of cuboid is ( 2lb + 2bh + 2hl ) and

Volume of cuboid

l\times b\times h

here l = 14cm, b = 11cm and h = 14cm

so, Surface area =

\begin{gathered} 2\times14\times11+2\times11\times14+2\times14\times14 \\ 308+308+392 \\ 1,008cm^2 \end{gathered}

Volume of cuboid =

\begin{gathered} 14\times11\times14 \\ 2,156cm^3 \end{gathered}

Final Answer

Surface Area = 1,008

Volume = 2,156

6 0
1 year ago
A college has a student to teacher ratio of 25 to 2. If there are 190 teachers at the college, how many students attend the coll
lara [203]

25 to 2 means for every 25 students there are 2 teachers.


Divide the total number of teachers by their ratio:

190 / 2 = 95


Now multiply that by the student ratio:

95 * 25 = 2,375 total students.



4 0
3 years ago
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