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Grace [21]
3 years ago
5

Need help, and please answer

Mathematics
1 answer:
masya89 [10]3 years ago
6 0

Answer:

7(2+x)(2-x)

Step-by-step explanation:

observe

28-7x^2=7(4-x^2)=7(2+x)(2-x)

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What is the following sum?<br> 5(3squareroot x) +9 (3squareroot x)
Volgvan

\sf{14(\sqrt[3]{x}) }

Step-by-step explanation:

5(\sqrt[3]{x})+9(\sqrt[3]{x})\\\\(5+9)(\sqrt[3]{x})\\\\14(\sqrt[3]{x})

7 0
2 years ago
How to find an exponential function with two points?
BabaBlast [244]
Well u have a basic equation y=a • b^x
a is the initial amount
b is the growth factor
and x is the exponent

the first step is to make a chart with ur two points for example
(0,4) and (2,16)
so ur chart will be
x. | y.
0. | 4
2. | 16
next you find the difference between the x side so 0 to 2 is +2
then find the difference between the y side so 4 to 16 is +12
then put it into a fraction with y over x or y/x so 12/2 then simplified 6/1 or just 6.

6 is the growth factor
and to find a u have to go on the y column and find the first number so
a is 4
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so the answer would be y=4 • 6^x
6 0
3 years ago
Can someone tell me the answer?plz I’m stuck I’ll give you brainlist and points
Savatey [412]
24-7=b is the answer
5 0
3 years ago
Please solve this....
ivann1987 [24]

Answer:

the value will be equal to 0

Step-by-step explanation:

see the attached picture for solution --

5 0
3 years ago
A math class has 7 girls and 3 boys in the seventh grade and 3 girls and 9 boys in the eighth grade. The teacher randomly select
Bumek [7]

7th grade has 3 boy out of 10 students

 probability of picking a boy is 3/10

8th grade has 9 boys out of 12 students are boys

 probability of picking a boy is 9/12 reduced to 3/4

3/10 x 3/4 = 9/40 probability of picking 2 boys

4 0
3 years ago
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